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  <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_TaxReceivableAgreementPayableIncreaseDecrease" abstract="false" name="TaxReceivableAgreementPayableIncreaseDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMeasurementInput" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMeasurementInput" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="pwp_CommonStockNumberOfVotingRightsWithCeasedThresholdPercentage" abstract="false" name="CommonStockNumberOfVotingRightsWithCeasedThresholdPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_LockUpPeriod" abstract="false" name="LockUpPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_DeferredCompensationArrangementWithIndividualForfeitedAmount" abstract="false" name="DeferredCompensationArrangementWithIndividualForfeitedAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_IncrementalCommonSharesAttributableToExchangeOfOtherUnits" abstract="false" name="IncrementalCommonSharesAttributableToExchangeOfOtherUnits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationGrantDateFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_NumberOfSponsorSharesDistributedSubjectToTransferRestrictions" abstract="false" name="NumberOfSponsorSharesDistributedSubjectToTransferRestrictions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_AdjustmentsToAdditionalPaidInCapitalChangeInOwnershipInterestValue" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalChangeInOwnershipInterestValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_PublicWarrantMember" abstract="true" name="PublicWarrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_DeferredTaxAssetsDueToStepUpAndDifferenceBasisIncreaseDecrease" abstract="false" name="DeferredTaxAssetsDueToStepUpAndDifferenceBasisIncreaseDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" 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_DollarTwelvePriceMember" abstract="true" name="DollarTwelvePriceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_AllowanceForDoubtfulAccountsReceivableForeignCurrencyTranslation" abstract="false" name="AllowanceForDoubtfulAccountsReceivableForeignCurrencyTranslation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_PeriodFounderSharesMayBePurchased" abstract="false" name="PeriodFounderSharesMayBePurchased" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_EffectOfBusinessCombination" abstract="false" name="EffectOfBusinessCombination" nillable="true" xbrli:periodType="duration" 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_TaxReceivableAgreementPolicyTextBlock" abstract="false" name="TaxReceivableAgreementPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <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_MarketConditionSharePriceAchieved" abstract="false" name="MarketConditionSharePriceAchieved" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="pwp_UnitsOfMinorityInterestAmount" abstract="false" name="UnitsOfMinorityInterestAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_LessorSubleaseIncomeToBeReceivedAbstract" abstract="true" name="LessorSubleaseIncomeToBeReceivedAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_PartnerPromissoryNotesMember" abstract="true" name="PartnerPromissoryNotesMember" 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_PendingDismissalMember" abstract="true" name="PendingDismissalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_CommonStockNumberOfVotingRights" abstract="false" name="CommonStockNumberOfVotingRights" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_FounderSharePurchaseOptionMember" abstract="true" name="FounderSharePurchaseOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_CadenceBankPrimeRateMember" abstract="true" name="CadenceBankPrimeRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_GeneralPSUsMember" abstract="true" name="GeneralPSUsMember" 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_NumberOfFounderShares" abstract="false" name="NumberOfFounderShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_PaymentForTheExchangeOfPartnershipUnits" abstract="false" name="PaymentForTheExchangeOfPartnershipUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_LondonOfficeMember" abstract="true" name="LondonOfficeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_RelatedPartyIncomeAbstract" abstract="true" name="RelatedPartyIncomeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_ForcedTenderMember" abstract="true" name="ForcedTenderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_EntityControlledByDirectorMember" abstract="true" name="EntityControlledByDirectorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_TrancheTwoMember" abstract="true" name="TrancheTwoMember" 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_TransactionPoolRsusMember" abstract="true" name="TransactionPoolRsusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_IncentivePlanAwardsMember" abstract="true" name="IncentivePlanAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_EffectiveIncomeTaxRateReconciliationChangeInFairValueOfWarrantLiabilitiesPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeInFairValueOfWarrantLiabilitiesPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="pwp_RelatedPartyTransactionPartnerPromissoryNotes" abstract="false" name="RelatedPartyTransactionPartnerPromissoryNotes" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" 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_LessorSubleaseRentalsPaymentsToBeReceivedYearTwo" abstract="false" name="LessorSubleaseRentalsPaymentsToBeReceivedYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_TsaMember" abstract="true" name="TsaMember" 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_ScheduleOfShareBasedPaymentAwardOtherThanStockOptionsValuationAssumptionsTableTextBlock" abstract="false" name="ScheduleOfShareBasedPaymentAwardOtherThanStockOptionsValuationAssumptionsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_DeferredCompensationPolicyTextBlock" abstract="false" name="DeferredCompensationPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_WarrantsAbstract" abstract="true" name="WarrantsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_StockIssuedDuringPeriodSharesWarrantsExercised" abstract="false" name="StockIssuedDuringPeriodSharesWarrantsExercised" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_OneThreePointFiveZeroPriceTrancheMember" abstract="true" name="OneThreePointFiveZeroPriceTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_NonCashPaydownOfPartnerPromissoryNotes" abstract="false" name="NonCashPaydownOfPartnerPromissoryNotes" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_LongTermIncentiveAwardsMember" abstract="true" name="LongTermIncentiveAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_EarningsPerShareOtherDisclosureAbstract" abstract="true" name="EarningsPerShareOtherDisclosureAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_StockholderAgreementPercentCondition" abstract="false" name="StockholderAgreementPercentCondition" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_ClassOfWarrantOrRightExchangeCosts" abstract="false" name="ClassOfWarrantOrRightExchangeCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_ElectingIlpsMember" abstract="true" name="ElectingIlpsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ProfessionalPartnersAndIlpsMember" abstract="true" name="ProfessionalPartnersAndIlpsMember" 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_ValidTenderMember" abstract="true" name="ValidTenderMember" 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_OperatingLeaseLiabilitiesNetMinimumPaymentsDue" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_FormerWorkingPartnersMember" abstract="true" name="FormerWorkingPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_ElectingFormerWorkingPartnersMember" abstract="true" name="ElectingFormerWorkingPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_OperatingLeaseLiabilitiesNetMinimumPaymentsDueAfterYearFive" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueAfterYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_ClassOfWarrantOrRightExercisedOrRedeemed" abstract="false" name="ClassOfWarrantOrRightExercisedOrRedeemed" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_ThresholdPeriodRequiredForSatisfyCertainConditions" abstract="false" name="ThresholdPeriodRequiredForSatisfyCertainConditions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_PeriodRequiredToAchieveCertainConditions" abstract="false" name="PeriodRequiredToAchieveCertainConditions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <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_StockholdersEquityNoteConversionRatio" abstract="false" name="StockholdersEquityNoteConversionRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <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_WorkingPartnersMember" abstract="true" name="WorkingPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_PerellaWeinbergPartners2021OmnibusIncentivePlanMember" abstract="true" name="PerellaWeinbergPartners2021OmnibusIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_FollowOnPublicOfferingMember" abstract="true" name="FollowOnPublicOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_SponsorRelatedPipeInvestorsMember" abstract="true" name="SponsorRelatedPipeInvestorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_TSACompensationRelatedMember" abstract="true" name="TSACompensationRelatedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_DeferredTaxAssetsDueToStepUpAndDifferenceInBasis" abstract="false" name="DeferredTaxAssetsDueToStepUpAndDifferenceInBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_TaxReceivableAgreementTaxSavingsPercentage" abstract="false" name="TaxReceivableAgreementTaxSavingsPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearThree" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_EarningsPerShareIncomeLossCommonStockAbstract" abstract="true" name="EarningsPerShareIncomeLossCommonStockAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_TrancheOneMember" abstract="true" name="TrancheOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_FiftyFourMonthsTrancheMember" abstract="true" name="FiftyFourMonthsTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearOne" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearOne" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_ScheduleOfEstimatedPaymentsUnderTaxReceivableAgreementTableTextBlock" abstract="false" name="ScheduleOfEstimatedPaymentsUnderTaxReceivableAgreementTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_DistributionRateForClassBCommonStockComparedToClassA" abstract="false" name="DistributionRateForClassBCommonStockComparedToClassA" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <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_PipeInvestorsMember" abstract="true" name="PipeInvestorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_GeneralRsusMember" abstract="true" name="GeneralRsusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_FairValueMeasurementsAbstract" abstract="true" name="FairValueMeasurementsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_CommonClassB1Member" abstract="true" name="CommonClassB1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_MinimumSharePriceAndPurchasePrice" abstract="false" name="MinimumSharePriceAndPurchasePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <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_LosAngelesAndNewYorkOfficeMember" abstract="true" name="LosAngelesAndNewYorkOfficeMember" 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_DeferredTaxEffectFromExchangeOfPartnershipUnitsNetOfAmountPayableUnderTaxReceivableAgreement" abstract="false" name="DeferredTaxEffectFromExchangeOfPartnershipUnitsNetOfAmountPayableUnderTaxReceivableAgreement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_ExistingInvestorLimitedPartnersMember" abstract="true" name="ExistingInvestorLimitedPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_StockIssuedDuringPeriodValueWarrantsExercised" abstract="false" name="StockIssuedDuringPeriodValueWarrantsExercised" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_AccruedDividendsOnUnvestedRestrictedStockUnit" abstract="false" name="AccruedDividendsOnUnvestedRestrictedStockUnit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_DividendsAndDistributionsRate" abstract="false" name="DividendsAndDistributionsRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="pwp_LossContingencyPendingCounterclaimsNumber" abstract="false" name="LossContingencyPendingCounterclaimsNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_PartnersCapitalAccountDistributionsAfterBusinessCombination" abstract="false" name="PartnersCapitalAccountDistributionsAfterBusinessCombination" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_MarketConditionSharePriceRequirement" abstract="false" name="MarketConditionSharePriceRequirement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="pwp_NumberOfSponsorSharesDistributed" abstract="false" name="NumberOfSponsorSharesDistributed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_WarrantsAndRightsOutstandingFairValueAssumptionsExpectedDividendRate" abstract="false" name="WarrantsAndRightsOutstandingFairValueAssumptionsExpectedDividendRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pwp_OneTwoPriceTrancheMember" abstract="true" name="OneTwoPriceTrancheMember" 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:schema>
