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  <xs:element id="step_PartnershipOfSubsidiaryMember" abstract="true" name="PartnershipOfSubsidiaryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_DisposalGroupIncludingDiscontinuedOperationTerminatedNumberOfEmployees" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationTerminatedNumberOfEmployees" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="step_LegacyGrossCarriedInterestAllocationFocusedCommingledFundsMember" abstract="true" name="LegacyGrossCarriedInterestAllocationFocusedCommingledFundsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_PerformanceFeesMember" abstract="true" name="PerformanceFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="step_DeferredTaxEffectFromPurchaseOfUnitsNet" abstract="false" name="DeferredTaxEffectFromPurchaseOfUnitsNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_CarriedInterestAllocationUnrealizedMember" abstract="true" name="CarriedInterestAllocationUnrealizedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVested" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVested" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="step_SwissAverageRateOvernightMember" abstract="true" name="SwissAverageRateOvernightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_StepStoneGroupLPMember" abstract="true" name="StepStoneGroupLPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_AdjustmentsToAdditionalPaidInCapitalDeferredTaxEffectOfExchange" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalDeferredTaxEffectOfExchange" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_AUDScreenRateMultipliedByStatutoryReserveRateMember" abstract="true" name="AUDScreenRateMultipliedByStatutoryReserveRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_DisposalGroupIncludingDiscontinuedOperationPercentageOfEquityInterestSold" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationPercentageOfEquityInterestSold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="step_ClassCPartnershipUnitMember" abstract="true" name="ClassCPartnershipUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_ConversionOfStockConversionBasis" abstract="false" name="ConversionOfStockConversionBasis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="step_CarriedInterestAllocationRealizedMember" abstract="true" name="CarriedInterestAllocationRealizedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesConsolidatedFundsAbstract" abstract="true" name="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesConsolidatedFundsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="step_CarriedInterestAllocationAndInvestmentIncomeUnrealizedGainLoss" abstract="false" name="CarriedInterestAllocationAndInvestmentIncomeUnrealizedGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_GreenspringBankOfficeSolutionsLLCGBOSMember" abstract="true" name="GreenspringBankOfficeSolutionsLLCGBOSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="step_PerformanceFeeRelatedCompensationRelatedToCarriedInterestAllocationRealized" abstract="false" name="PerformanceFeeRelatedCompensationRelatedToCarriedInterestAllocationRealized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_RevenueFromContractWithCustomerIncentiveFeesAsPercentageOfNetInvestmentIncome" abstract="false" name="RevenueFromContractWithCustomerIncentiveFeesAsPercentageOfNetInvestmentIncome" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="step_DebtInstrumentBaseInterestRate" abstract="false" name="DebtInstrumentBaseInterestRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="step_PartnershipsAndLLCInterestsMember" abstract="true" name="PartnershipsAndLLCInterestsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="step_EconomicOwnershipInterest" abstract="false" name="EconomicOwnershipInterest" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="step_PaymentsToRelatedPartiesTaxReceivableAgreements" abstract="false" name="PaymentsToRelatedPartiesTaxReceivableAgreements" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_IncrementalNetCashTaxSavingsDueToExchangingLimitedPartnersPercent" abstract="false" name="IncrementalNetCashTaxSavingsDueToExchangingLimitedPartnersPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="step_ManagementAndAdvisoryFeesNetBDCIncomeBasedIncentiveFeesMember" abstract="true" name="ManagementAndAdvisoryFeesNetBDCIncomeBasedIncentiveFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="step_LegacyInvestmentsInFunds" abstract="false" name="LegacyInvestmentsInFunds" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_EquityMethodInvestmentAccruedCarriedInterestRelatedCompensationPayable" abstract="false" name="EquityMethodInvestmentAccruedCarriedInterestRelatedCompensationPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_UnrealizedInvestmentGainLossFromConsolidatedFunds" abstract="false" name="UnrealizedInvestmentGainLossFromConsolidatedFunds" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_BusinessCombinationContingentConsiderationLiabilityMember" abstract="true" name="BusinessCombinationContingentConsiderationLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_StockholdersEquityUnitsExchangedInOfferingShares" abstract="false" name="StockholdersEquityUnitsExchangedInOfferingShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="step_LiabilityClassifiedAwardMember" abstract="true" name="LiabilityClassifiedAwardMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_ManagementContractsMember" abstract="true" name="ManagementContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" abstract="false" name="FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_IncreaseDecreaseInLeaseRightOfUseAssetsNetOfLeaseLiabilities" abstract="false" name="IncreaseDecreaseInLeaseRightOfUseAssetsNetOfLeaseLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_ManagementAndAdvisoryFeesNetFocusedCommingledFundsMember" abstract="true" name="ManagementAndAdvisoryFeesNetFocusedCommingledFundsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_CurrentEventsPolicyTextBlock" abstract="false" name="CurrentEventsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="step_NumberOfClassesOfCommonStockOutstanding" abstract="false" name="NumberOfClassesOfCommonStockOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="step_CarriedInterestAllocationMember" abstract="true" name="CarriedInterestAllocationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_LegacyFundsMember" abstract="true" name="LegacyFundsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_OtherLiabilitiesNonControllingInterestHoldersDueToTaxReceivableAgreementsMember" abstract="true" name="OtherLiabilitiesNonControllingInterestHoldersDueToTaxReceivableAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="step_IncentiveFeesMember" abstract="true" name="IncentiveFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_CommonStockNumberOfVotes" abstract="false" name="CommonStockNumberOfVotes" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="step_LineOfCreditFacilityCommitmentFeePercentageSpreadOnBaseIfUtilizationLessThan50Percent" abstract="false" name="LineOfCreditFacilityCommitmentFeePercentageSpreadOnBaseIfUtilizationLessThan50Percent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="step_ConsolidatedEntitiesExcludingLegacyEntitiesMember" abstract="true" name="ConsolidatedEntitiesExcludingLegacyEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_OtherReceivablesStepStoneFundsMember" abstract="true" name="OtherReceivablesStepStoneFundsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="step_OtherReceivablesLoansMember" abstract="true" name="OtherReceivablesLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="step_AdjustmentsToReconcileNetIncomeLossToNetCashProvidedByOperatingActivitiesOfConsolidatedFundsAbstract" abstract="true" name="AdjustmentsToReconcileNetIncomeLossToNetCashProvidedByOperatingActivitiesOfConsolidatedFundsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="step_LegacyCarriedInterestAllocationFocusedCommingledFundsMember" abstract="true" name="LegacyCarriedInterestAllocationFocusedCommingledFundsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_RevenueLegacyCarriedInterestAllocationAsPercentageOfCumulativeFundOrAccountPerformance" abstract="false" name="RevenueLegacyCarriedInterestAllocationAsPercentageOfCumulativeFundOrAccountPerformance" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="step_OtherReceivablesEmployeesMember" abstract="true" name="OtherReceivablesEmployeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="step_ManagementAndAdvisoryFeesNetFundReimbursementRevenuesMember" abstract="true" name="ManagementAndAdvisoryFeesNetFundReimbursementRevenuesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_ExchangeOneMember" abstract="true" name="ExchangeOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_PartnershipAndLLCInterestsMember" abstract="true" name="PartnershipAndLLCInterestsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_RevenueCarriedInterestAllocationMinimumReturnLevelsRequired" abstract="false" name="RevenueCarriedInterestAllocationMinimumReturnLevelsRequired" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="step_TransactionAgreementNumberOfAnnualExchanges" abstract="false" name="TransactionAgreementNumberOfAnnualExchanges" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="step_RevenueNotFromContractWithCustomerIncomeLossFromEquityMethodInvestmentsAndInvestmentIncome" abstract="false" name="RevenueNotFromContractWithCustomerIncomeLossFromEquityMethodInvestmentsAndInvestmentIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_AdjustmentsToAdditionalPaidInCapitalReallocationOfNoncontrollingInterest" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalReallocationOfNoncontrollingInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_ComprehensiveIncomeLossNetOfTaxRedeemableNoncontrollingInterest" abstract="false" name="ComprehensiveIncomeLossNetOfTaxRedeemableNoncontrollingInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_LegacyInvestmentsInFundsAndAccruedCarriedInterestAllocations" abstract="false" name="LegacyInvestmentsInFundsAndAccruedCarriedInterestAllocations" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_SecuredOvernightFinancingRateSOFRMember" abstract="true" name="SecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="step_DisposalGroupIncludingDiscontinuedOperationConsiderationSecuredPromissoryNoteTerm" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationConsiderationSecuredPromissoryNoteTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="step_LesseeOperatingLeaseNumberOfCities" abstract="false" name="LesseeOperatingLeaseNumberOfCities" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="step_VariableInterestEntityNotPrimaryBeneficiaryLegacyEntitiesMember" abstract="true" name="VariableInterestEntityNotPrimaryBeneficiaryLegacyEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_ClassB2UnitMember" abstract="true" name="ClassB2UnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_CompensationExpenseCashBasedCompensationAndBenefits" abstract="false" name="CompensationExpenseCashBasedCompensationAndBenefits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_TaxReceivableAgreementPolicyPolicyTextBlock" abstract="false" name="TaxReceivableAgreementPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="step_CarriedInterestAllocationFocusedCommingledFundsMember" abstract="true" name="CarriedInterestAllocationFocusedCommingledFundsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_LegacyPerformanceFeeRelatedCompensationRelatedToCarriedInterestAllocation" abstract="false" name="LegacyPerformanceFeeRelatedCompensationRelatedToCarriedInterestAllocation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="step_LegacyCarriedInterestAllocationSeparatelyManagedAccountsMember" abstract="true" name="LegacyCarriedInterestAllocationSeparatelyManagedAccountsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="step_A1MonthTermSecuredOvernightFinancingRateSOFRMember" abstract="true" name="A1MonthTermSecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
