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  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementYearTwo" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_FairValueMeasurementsAndInvestmentsAbstract" abstract="true" name="FairValueMeasurementsAndInvestmentsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_NetAssetsOfDeconsolidatedAffiliate" abstract="false" name="NetAssetsOfDeconsolidatedAffiliate" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_SponsorRelatedPipeInvestorsMember" abstract="true" name="SponsorRelatedPipeInvestorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_FederalFundsRateMember" abstract="true" name="FederalFundsRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_LossContingencyPendingDefendantsClaimsNumber" abstract="false" name="LossContingencyPendingDefendantsClaimsNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_StockholderAgreementPercentCondition" abstract="false" name="StockholderAgreementPercentCondition" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_PrivateWarrantsMember" abstract="true" name="PrivateWarrantsMember" 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_IncreaseDecreaseInOperatingLeaseRightOfUseAsset" abstract="false" name="IncreaseDecreaseInOperatingLeaseRightOfUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_AccruedTreasuryStockPurchases" abstract="false" name="AccruedTreasuryStockPurchases" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" 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_WarrantsTextBlock" abstract="false" name="WarrantsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <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_EstimatedPaymentsUnderTaxReceivableAgreementYearFour" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" 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_TrancheFourMember" abstract="true" name="TrancheFourMember" 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_LessorSubleaseRentalsPaymentsToBeReceived" abstract="false" name="LessorSubleaseRentalsPaymentsToBeReceived" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" 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_LessorSubleaseIncomeToBeReceivedAfterYearFour" abstract="false" name="LessorSubleaseIncomeToBeReceivedAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_LegacyAwardsAndProfessionalPartnersAwardsMember" abstract="true" name="LegacyAwardsAndProfessionalPartnersAwardsMember" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_PipeInvestorsMember" abstract="true" name="PipeInvestorsMember" 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_LossContingencyPendingCounterclaimsNumber" abstract="false" name="LossContingencyPendingCounterclaimsNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementAfterYearFour" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementAfterYearFour" 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_ExistingInvestorLimitedPartnersMember" abstract="true" name="ExistingInvestorLimitedPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_EstimatedPaymentsUnderTaxReceivableAgreementRemainderOfFiscalYear" abstract="false" name="EstimatedPaymentsUnderTaxReceivableAgreementRemainderOfFiscalYear" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_CadenceBankPrimeRateFloorMember" abstract="true" name="CadenceBankPrimeRateFloorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMeasurementInput" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMeasurementInput" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <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_FourtyTwoMonthsTrancheMember" abstract="true" name="FourtyTwoMonthsTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_LessorSubleaseIncomeToBeReceivedRemainderOfFiscalYear" abstract="false" name="LessorSubleaseIncomeToBeReceivedRemainderOfFiscalYear" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_OperatingLeaseLiabilitiesNetMinimumPaymentsDueAfterYearFour" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_HoustonOfficeMember" abstract="true" name="HoustonOfficeMember" 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_NumberOfSponsorSharesDistributed" abstract="false" name="NumberOfSponsorSharesDistributed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_EffectOfBusinessCombinationOnShare" abstract="false" name="EffectOfBusinessCombinationOnShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearThree" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_OneCustomerMember" abstract="true" name="OneCustomerMember" 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_NumberOfFounderShares" abstract="false" name="NumberOfFounderShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_ScheduleOfApplicableInterestRateTableTableTextBlock" abstract="false" name="ScheduleOfApplicableInterestRateTableTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="pwp_LossContingencyPendingPlaintiffsClaimsNumber" abstract="false" name="LossContingencyPendingPlaintiffsClaimsNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_PaymentOfFinancingAndStockIssuanceCostsPricePerShare" abstract="false" name="PaymentOfFinancingAndStockIssuanceCostsPricePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <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_LockUpPeriod" abstract="false" name="LockUpPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <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_OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearTwo" abstract="false" name="OperatingLeaseLiabilitiesNetMinimumPaymentsDueYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_TaxPositionSummaryTableTextBlock" abstract="false" name="TaxPositionSummaryTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <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_NonControllingInterestPolicyTextBlock" abstract="false" name="NonControllingInterestPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <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_NonCashPaydownOfPartnerPromissoryNotes" abstract="false" name="NonCashPaydownOfPartnerPromissoryNotes" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_PWPOpCoMember" abstract="true" name="PWPOpCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_ThresholdPeriodRequiredForSatisfyCertainConditions" abstract="false" name="ThresholdPeriodRequiredForSatisfyCertainConditions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pwp_DividendsRate" abstract="false" name="DividendsRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <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_ValidTenderMember" abstract="true" name="ValidTenderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_ClassOfWarrantOrRightExercisedOrRedeemed" abstract="false" name="ClassOfWarrantOrRightExercisedOrRedeemed" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="pwp_LessorSubleaseIncomeToBeReceivedYearFour" abstract="false" name="LessorSubleaseIncomeToBeReceivedYearFour" nillable="true" xbrli:periodType="instant" 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_WarrantsAbstract" abstract="true" name="WarrantsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_CommonStockNumberOfVotingRights" abstract="false" name="CommonStockNumberOfVotingRights" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_ClassB1CommonStockMember" abstract="true" name="ClassB1CommonStockMember" 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_RelatedPartyTransactionPartnerPromissoryNotes" abstract="false" name="RelatedPartyTransactionPartnerPromissoryNotes" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_LondonInterbankOfferedRateLIBORFloorMember" abstract="true" name="LondonInterbankOfferedRateLIBORFloorMember" 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_ThirtySixMonthsTrancheMember" abstract="true" name="ThirtySixMonthsTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_PendingMotionForLeaveToRenewMember" abstract="true" name="PendingMotionForLeaveToRenewMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pwp_LessorSubleaseIncomeToBeReceivedYearThree" abstract="false" name="LessorSubleaseIncomeToBeReceivedYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" 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_ClassB2CommonStockMember" abstract="true" name="ClassB2CommonStockMember" 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_RelatedPartyIncomeAbstract" abstract="true" name="RelatedPartyIncomeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_FormerWorkingPartnersMember" abstract="true" name="FormerWorkingPartnersMember" 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_StockholdersEquityNoteConversionRatio" abstract="false" name="StockholdersEquityNoteConversionRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <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_SponsorMember" abstract="true" name="SponsorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_AccruedDividendsOnUnvestedRestrictedStockUnit" abstract="false" name="AccruedDividendsOnUnvestedRestrictedStockUnit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pwp_LesseeOperatingLeaseLiabilityToBePaidNetOfTenantImprovementAllowancesYearOne" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidNetOfTenantImprovementAllowancesYearOne" nillable="true" xbrli:periodType="instant" 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_LessorSubleaseIncomeToBeReceivedYearOne" abstract="false" name="LessorSubleaseIncomeToBeReceivedYearOne" 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_CommonStockForfeited" abstract="false" name="CommonStockForfeited" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_CombinedLeverageRatio3" abstract="false" name="CombinedLeverageRatio3" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_WorkingPartnersMember" abstract="true" name="WorkingPartnersMember" 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_EntityControlledByDirectorMember" abstract="true" name="EntityControlledByDirectorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_OrganizationAndNatureOfBusinessAbstract" abstract="true" name="OrganizationAndNatureOfBusinessAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_DeferredCompensationLiabilitySettled" abstract="false" name="DeferredCompensationLiabilitySettled" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_FinancialAssetsFairValueDisclosureAbstract" abstract="true" name="FinancialAssetsFairValueDisclosureAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pwp_PeriodRequiredToAchieveCertainConditions" abstract="false" name="PeriodRequiredToAchieveCertainConditions" 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_LesseeOperatingLeaseLiabilityToBePaidNetOfTenantImprovementAllowancesRemainderOfFiscalYear" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidNetOfTenantImprovementAllowancesRemainderOfFiscalYear" 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_FiftyFourMonthsTrancheMember" abstract="true" name="FiftyFourMonthsTrancheMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationGrantDateFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_GeneralRsusMember" abstract="true" name="GeneralRsusMember" 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:schema>
