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  <xs:element id="pwp_CommonStockNumberOfVotingRightsWithCeasedThresholdPercentage" abstract="false" name="CommonStockNumberOfVotingRightsWithCeasedThresholdPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_ClassB1CommonStockMember" abstract="true" name="ClassB1CommonStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ElectingFormerWorkingPartnersMember" abstract="true" name="ElectingFormerWorkingPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_LossContingencyPendingPlaintiffsClaimsNumber" abstract="false" name="LossContingencyPendingPlaintiffsClaimsNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_OthersMember" abstract="true" name="OthersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_UnitedKingdomOfficeMember" abstract="true" name="UnitedKingdomOfficeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_TransactionPoolRsusReserveMember" abstract="true" name="TransactionPoolRsusReserveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ClassB2CommonStockMember" abstract="true" name="ClassB2CommonStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_TransactionPoolPsusMember" abstract="true" name="TransactionPoolPsusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ForeignCurrencyTranslationGainLossBeforeTaxPriorToBusinessCombination" abstract="false" name="ForeignCurrencyTranslationGainLossBeforeTaxPriorToBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_EffectOfBusinessCombinationOnShare" abstract="false" name="EffectOfBusinessCombinationOnShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_GeneralRsusMember" abstract="true" name="GeneralRsusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_FiftyFourMonthsTrancheMember" abstract="true" name="FiftyFourMonthsTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_LessorSubleaseRentalsPaymentsToBeReceivedYearThree" abstract="false" name="LessorSubleaseRentalsPaymentsToBeReceivedYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ThresholdPeriodRequiredForSatisfyCertainConditions" abstract="false" name="ThresholdPeriodRequiredForSatisfyCertainConditions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_IncrementalCommonSharesAttributableToExchangeOfOtherUnits" abstract="false" name="IncrementalCommonSharesAttributableToExchangeOfOtherUnits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_CumulativeEffectOfAccountingChange" abstract="false" name="CumulativeEffectOfAccountingChange" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_SponsorMember" abstract="true" name="SponsorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_TwoCustomersMember" abstract="true" name="TwoCustomersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_TransactionPoolShareReserveMember" abstract="true" name="TransactionPoolShareReserveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearThree" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_GainLossOnModificationOfLease" abstract="false" name="GainLossOnModificationOfLease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_LossContingencyPendingDefendantsClaimsNumber" abstract="false" name="LossContingencyPendingDefendantsClaimsNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_ThirtySixMonthsTrancheMember" abstract="true" name="ThirtySixMonthsTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_TaxReceivableAgreementPolicyTextBlock" abstract="false" name="TaxReceivableAgreementPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_PreferredAndCommonStockSharesAuthorized" abstract="false" name="PreferredAndCommonStockSharesAuthorized" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_MeasurementInputIncomeMultipleMember" abstract="true" name="MeasurementInputIncomeMultipleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ClassOfWarrantOrRightNoticeOfRedemptionMinimumPeriod" abstract="false" name="ClassOfWarrantOrRightNoticeOfRedemptionMinimumPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_TrancheThreeMember" abstract="true" name="TrancheThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_InterestIncomePolicyPolicyTextBlock" abstract="false" name="InterestIncomePolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_UnitsOfMinorityInterestAmount" abstract="false" name="UnitsOfMinorityInterestAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_PeriodRequiredToAchieveCertainConditions" abstract="false" name="PeriodRequiredToAchieveCertainConditions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearOne" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearOne" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_RedemptionOfPartnersInterest" abstract="false" name="RedemptionOfPartnersInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_AllowanceForDoubtfulAccountsReceivableForeignCurrencyTranslation" abstract="false" name="AllowanceForDoubtfulAccountsReceivableForeignCurrencyTranslation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_DeferredTaxAssetsDueToStepUpAndDifferenceInBasis" abstract="false" name="DeferredTaxAssetsDueToStepUpAndDifferenceInBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueAfterYearFive" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueAfterYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ProfitLossPriorToBusinessCombination" abstract="false" name="ProfitLossPriorToBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_PremiumPaidToCertainRedeemingHolders" abstract="false" name="PremiumPaidToCertainRedeemingHolders" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearThree" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_DollarTwelvePriceMember" abstract="true" name="DollarTwelvePriceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ProfessionalPartnersAwardMember" abstract="true" name="ProfessionalPartnersAwardMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ScheduleOfShareBasedPaymentAwardOtherThanStockOptionsValuationAssumptionsTableTextBlock" abstract="false" name="ScheduleOfShareBasedPaymentAwardOtherThanStockOptionsValuationAssumptionsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_ReimbursableExpensesRecordedAsRevenue" abstract="false" name="ReimbursableExpensesRecordedAsRevenue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_OneSevenPriceTrancheMember" abstract="true" name="OneSevenPriceTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_TransactionPoolPsusReserveMember" abstract="true" name="TransactionPoolPsusReserveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_PartnersCapitalAccountDistributionsPriorToBusinessCombination" abstract="false" name="PartnersCapitalAccountDistributionsPriorToBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_PendingDismissalMember" abstract="true" name="PendingDismissalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_LessorSubleaseRentalsPaymentsToBeReceivedAfterYearFive" abstract="false" name="LessorSubleaseRentalsPaymentsToBeReceivedAfterYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_PrivateWarrantsMember" abstract="true" name="PrivateWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_PerellaWeinbergPartners2021OmnibusIncentivePlanMember" abstract="true" name="PerellaWeinbergPartners2021OmnibusIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_PrivateWarrantMember" abstract="true" name="PrivateWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_WarrantsAbstract" abstract="true" name="WarrantsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_PWPOpCoMember" abstract="true" name="PWPOpCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_HoustonOfficeMember" abstract="true" name="HoustonOfficeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_NetAssetsOfDeconsolidatedAffiliate" abstract="false" name="NetAssetsOfDeconsolidatedAffiliate" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ElectingIlpsMember" abstract="true" name="ElectingIlpsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_IncreaseDecreaseInOperatingLeaseRightOfUseAsset" abstract="false" name="IncreaseDecreaseInOperatingLeaseRightOfUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_OriginalIssueDiscountRate" abstract="false" name="OriginalIssueDiscountRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_LessorSubleaseRentalsPaymentsToBeReceived" abstract="false" name="LessorSubleaseRentalsPaymentsToBeReceived" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_LegacyAwardsMember" abstract="true" name="LegacyAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementAfterYearFive" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementAfterYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_PublicWarrantMember" abstract="true" name="PublicWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_MarketConditionSharePriceRequirement" abstract="false" name="MarketConditionSharePriceRequirement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="pwp_ProfitLossAfterBusinessCombination" abstract="false" name="ProfitLossAfterBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ClassOfWarrantOrRightExercised" abstract="false" name="ClassOfWarrantOrRightExercised" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_PrepaidExpensesAndOtherAssetsPolicyPolicyTextBlock" abstract="false" name="PrepaidExpensesAndOtherAssetsPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_FixedRateMember" abstract="true" name="FixedRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_WarrantsTextBlock" abstract="false" name="WarrantsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_FairValueMeasurementsAbstract" abstract="true" name="FairValueMeasurementsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_TotalLongTermDebtNet" abstract="false" name="TotalLongTermDebtNet" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueAbstract" abstract="true" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_LossContingencyPendingCounterclaimsNumber" abstract="false" name="LossContingencyPendingCounterclaimsNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_EffectOfBusinessCombination" abstract="false" name="EffectOfBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_CommonClassB1Member" abstract="true" name="CommonClassB1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ProceedsFromBusinessCombination" abstract="false" name="ProceedsFromBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_LessorSubleaseRentalsPaymentsToBeReceivedYearTwo" abstract="false" name="LessorSubleaseRentalsPaymentsToBeReceivedYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ClassOfWarrantOrRightsWaitingPeriodFromWhichWarrantsOrRightsExercisable" abstract="false" name="ClassOfWarrantOrRightsWaitingPeriodFromWhichWarrantsOrRightsExercisable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_PendingLitigationAfterPendingDismissalMember" abstract="true" name="PendingLitigationAfterPendingDismissalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_CommonStockForfeitedValuePerShare" abstract="false" name="CommonStockForfeitedValuePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="pwp_DebtInstrumentCommitmentFeePercentage" abstract="false" name="DebtInstrumentCommitmentFeePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_OrganizationAndNatureOfBusinessAbstract" abstract="true" name="OrganizationAndNatureOfBusinessAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_DividendsRateForClassBCommonStockComparedToClassA" abstract="false" name="DividendsRateForClassBCommonStockComparedToClassA" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="pwp_TSACompensationRelatedMember" abstract="true" name="TSACompensationRelatedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_NumberOfClientsOverTenPercentBenchmark" abstract="false" name="NumberOfClientsOverTenPercentBenchmark" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_WorkingPartnersMember" abstract="true" name="WorkingPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ClassOfWarrantOrRightTradingDaysMinimumForRedemption" abstract="false" name="ClassOfWarrantOrRightTradingDaysMinimumForRedemption" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_DeferredTaxAssetsOperatingLeaseLiabilities" abstract="false" name="DeferredTaxAssetsOperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ManagementPsusMember" abstract="true" name="ManagementPsusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearFive" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_WarrantsAndRightsOutstandingFairValueAssumptionsRiskFreeRateOfReturn" abstract="false" name="WarrantsAndRightsOutstandingFairValueAssumptionsRiskFreeRateOfReturn" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_PartnersMember" abstract="true" name="PartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_NewYorkOfficeMember" abstract="true" name="NewYorkOfficeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_FounderSharesConvertibleMinimumConsecutiveTradingDays" abstract="false" name="FounderSharesConvertibleMinimumConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_TrancheTwoMember" abstract="true" name="TrancheTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_CombinedLeverageRatio1" abstract="false" name="CombinedLeverageRatio1" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_MotionForLeaveToRenewMember" abstract="true" name="MotionForLeaveToRenewMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_LockUpPeriod" abstract="false" name="LockUpPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_SixtyMonthsTrancheMember" abstract="true" name="SixtyMonthsTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_FounderSharesConvertibleThresholdConsecutiveTradingDays" abstract="false" name="FounderSharesConvertibleThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_StockExchangedDuringPeriodShares" abstract="false" name="StockExchangedDuringPeriodShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_TSANonCompensationRelatedMember" abstract="true" name="TSANonCompensationRelatedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearFive" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_PrivatePlacementWarrantsMember" abstract="true" name="PrivatePlacementWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_AmountOfDilutiveSecuritiesPWPOpCoUnits" abstract="false" name="AmountOfDilutiveSecuritiesPWPOpCoUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_DollarFifteenPriceMember" abstract="true" name="DollarFifteenPriceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_WarrantsAndRightsOutstandingFairValueAssumptionsExercisePrice" abstract="false" name="WarrantsAndRightsOutstandingFairValueAssumptionsExercisePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="pwp_FairValueMeasurementsAndInvestmentsDisclosureTextBlock" abstract="false" name="FairValueMeasurementsAndInvestmentsDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_PaymentOfFinancingAndStockIssuanceCostsPricePerShare" abstract="false" name="PaymentOfFinancingAndStockIssuanceCostsPricePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="pwp_OneFivePriceTrancheMember" abstract="true" name="OneFivePriceTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_CertainUSPartnersMember" abstract="true" name="CertainUSPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearOne" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementYearOne" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_AccountsReceivableSubsequentlyReceived" abstract="false" name="AccountsReceivableSubsequentlyReceived" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_FurnitureFixturesAndEquipmentMember" abstract="true" name="FurnitureFixturesAndEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_PartnerPromissoryNotesMember" abstract="true" name="PartnerPromissoryNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_GeneralShareReserveMember" abstract="true" name="GeneralShareReserveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_StockholdersEquityNoteConversionRatio" abstract="false" name="StockholdersEquityNoteConversionRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="pwp_MinimumAmountHeldByRedeemingHolders" abstract="false" name="MinimumAmountHeldByRedeemingHolders" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_LesseeOperatingSubleaseOptionToTerminateNotice" abstract="false" name="LesseeOperatingSubleaseOptionToTerminateNotice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearTwo" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_PreviousDeferredOfferingCostsExpensed" abstract="false" name="PreviousDeferredOfferingCostsExpensed" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_PercentageOfSharesOutstanding" abstract="false" name="PercentageOfSharesOutstanding" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_IncrementalRevolvingCommitments" abstract="false" name="IncrementalRevolvingCommitments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_MarketConditionSharePriceAchieved" abstract="false" name="MarketConditionSharePriceAchieved" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDue" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_MinimumPercentageCondition" abstract="false" name="MinimumPercentageCondition" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_WeightedAverageInterestRateMember" abstract="true" name="WeightedAverageInterestRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_RelatedPartyExpensesAbstract" abstract="true" name="RelatedPartyExpensesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_CommonStockOwnershipPercentageThreshold" abstract="false" name="CommonStockOwnershipPercentageThreshold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_TsaMember" abstract="true" name="TsaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_SoftwareMember" abstract="true" name="SoftwareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_FormerWorkingPartnersMember" abstract="true" name="FormerWorkingPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearFour" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ClassOfWarrantOrRightRedemptionPriceOfWarrantsOrRights" abstract="false" name="ClassOfWarrantOrRightRedemptionPriceOfWarrantsOrRights" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="pwp_LessorSubleaseRentalsPaymentsToBeReceivedYearFour" abstract="false" name="LessorSubleaseRentalsPaymentsToBeReceivedYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_LessorSubleaseRentalsPaymentsToBeReceivedYearFive" abstract="false" name="LessorSubleaseRentalsPaymentsToBeReceivedYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_LessorSubleaseRentalsPaymentsToBeReceivedYearOne" abstract="false" name="LessorSubleaseRentalsPaymentsToBeReceivedYearOne" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_CombinedLeverageRatio3" abstract="false" name="CombinedLeverageRatio3" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_WarrantsAndRightsOutstandingFairValueAssumptionsExpectedTerm" abstract="false" name="WarrantsAndRightsOutstandingFairValueAssumptionsExpectedTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_ClassOfWarrantOrRightsStockPriceMinimumForRedemption" abstract="false" name="ClassOfWarrantOrRightsStockPriceMinimumForRedemption" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="pwp_TrancheOneMember" abstract="true" name="TrancheOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_PipeInvestorsMember" abstract="true" name="PipeInvestorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_NonControllingInterestPolicyTextBlock" abstract="false" name="NonControllingInterestPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_NumberOfFounderShares" abstract="false" name="NumberOfFounderShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_FourtyEightMonthsTrancheMember" abstract="true" name="FourtyEightMonthsTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_PFACHoldingsMember" abstract="true" name="PFACHoldingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_DistributionRateForClassBCommonStockComparedToClassA" abstract="false" name="DistributionRateForClassBCommonStockComparedToClassA" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="pwp_ReductionToCadenceBankPrimeRateMember" abstract="true" name="ReductionToCadenceBankPrimeRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_CombinedLeverageRatio2" abstract="false" name="CombinedLeverageRatio2" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_LegacyAwardsAndProfessionalPartnersAwardsMember" abstract="true" name="LegacyAwardsAndProfessionalPartnersAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_TaxReceivableAgreementTaxSavingsPercentage" abstract="false" name="TaxReceivableAgreementTaxSavingsPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_FourtyTwoMonthsTrancheMember" abstract="true" name="FourtyTwoMonthsTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_PartnersCapitalAccountDistributionsAfterBusinessCombination" abstract="false" name="PartnersCapitalAccountDistributionsAfterBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_TrancheFourMember" abstract="true" name="TrancheFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMeasurementInput" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMeasurementInput" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="pwp_WarrantsFairValuePricePerUnit" abstract="false" name="WarrantsFairValuePricePerUnit" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="pwp_MeasurementInputGrowthRateMember" abstract="true" name="MeasurementInputGrowthRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_CommonStockForfeited" abstract="false" name="CommonStockForfeited" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_PublicWarrantsMember" abstract="true" name="PublicWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_EffectiveInterestRateMember" abstract="true" name="EffectiveInterestRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ForeignCurrencyTranslationGainLossBeforeTaxAfterBusinessCombination" abstract="false" name="ForeignCurrencyTranslationGainLossBeforeTaxAfterBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_AmountDuePursuantToTaxReceivableAgreement" abstract="false" name="AmountDuePursuantToTaxReceivableAgreement" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_PWPCapitalHoldingsLPMember" abstract="true" name="PWPCapitalHoldingsLPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_CompensationExpenseExcludingEquityBasedCompensation" abstract="false" name="CompensationExpenseExcludingEquityBasedCompensation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ExistingInvestorLimitedPartnersMember" abstract="true" name="ExistingInvestorLimitedPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearFour" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_RelatedPartyTransactionPartnerPromissoryNotes" abstract="false" name="RelatedPartyTransactionPartnerPromissoryNotes" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_DebtInstrumentRedemptionPriceExceededVolumeWeightedAveragePriceTerm" abstract="false" name="DebtInstrumentRedemptionPriceExceededVolumeWeightedAveragePriceTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_WarrantsAndRightsOutstandingFairValueAssumptionsExpectedVolatilityRate" abstract="false" name="WarrantsAndRightsOutstandingFairValueAssumptionsExpectedVolatilityRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_PartnersCapitalOtherPriorToBusinessCombination" abstract="false" name="PartnersCapitalOtherPriorToBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_FounderSharePurchaseOptionMember" abstract="true" name="FounderSharePurchaseOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_FtivAndOtherPartiesMember" abstract="true" name="FtivAndOtherPartiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_MaximumAmountOfRevolvingCreditFacilityForLettersOfCredit" abstract="false" name="MaximumAmountOfRevolvingCreditFacilityForLettersOfCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ScheduleOfShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock" abstract="false" name="ScheduleOfShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_AdjustmentsToAdditionalPaidInCapitalChangeInOwnershipInterestValue" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalChangeInOwnershipInterestValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
