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      <link:roleType id="SummaryOfSignificantAccountingAndBusinessPolicies" roleURI="http://www.dxpe.com/role/SummaryOfSignificantAccountingAndBusinessPolicies">
        <link:definition>2102100 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING AND BUSINESS POLICIES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
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  <xsd:element abstract="true" id="dxpe_AnnualizedEBITDAAndProbabilityOfAchievementMember" name="AnnualizedEBITDAAndProbabilityOfAchievementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_ApplicationSpecialtiesIncMember" name="ApplicationSpecialtiesIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="dxpe_AssetsAndLiabilitiesLesseeTableTextBlock" name="AssetsAndLiabilitiesLesseeTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="dxpe_BillingsInExcessOfCostCurrentTranslationAdjustment" name="BillingsInExcessOfCostCurrentTranslationAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="dxpe_BusinessCombinationContingentConsiderationArrangementsChangeinAmountofContingentConsiderationinExcessofFairValue" name="BusinessCombinationContingentConsiderationArrangementsChangeinAmountofContingentConsiderationinExcessofFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_CompanyAbstract" name="CompanyAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_ContingentConsiderationLiabilityMember" name="ContingentConsiderationLiabilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="dxpe_ContractWithCustomerAssetNetCurrentExcludingContractWithCustomerLiabilityCurrentAndTranslationAdjustment" name="ContractWithCustomerAssetNetCurrentExcludingContractWithCustomerLiabilityCurrentAndTranslationAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="dxpe_ContractWithCustomerLiabilityCustomerAdvancesCurrent" name="ContractWithCustomerLiabilityCustomerAdvancesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="dxpe_CostAndEarningsOfUncompletedContracts" name="CostAndEarningsOfUncompletedContracts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="dxpe_CostsAndEstimatedEarningsBilledToDate" name="CostsAndEstimatedEarningsBilledToDate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="dxpe_CostsAndEstimatedEarningsOnUncompletedContractsIncludedInAccompanyingBalanceSheetsUnderCaptionsAbstract" name="CostsAndEstimatedEarningsOnUncompletedContractsIncludedInAccompanyingBalanceSheetsUnderCaptionsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="dxpe_CostsAndEstimatedEarningsOnUncompletedContractsTableTextBlock" name="CostsAndEstimatedEarningsOnUncompletedContractsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="dxpe_CostsAndEstimatedProfitsInExcessOfBillings" name="CostsAndEstimatedProfitsInExcessOfBillings" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="dxpe_CostsandEstimatedEarningsonUncompletedContractsAccompanyinginBalanceSheetTableTextBlock" name="CostsandEstimatedEarningsonUncompletedContractsAccompanyinginBalanceSheetTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_CustomizedPumpProductionMember" name="CustomizedPumpProductionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="dxpe_EstimatedEarningsThereonOnUncompletedContracts" name="EstimatedEarningsThereonOnUncompletedContracts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="dxpe_IncreaseDecreaseInBillingsInExcessOfCostsAndEstimatedProfits" name="IncreaseDecreaseInBillingsInExcessOfCostsAndEstimatedProfits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="dxpe_InnovativePumpingSolutionsMember" name="InnovativePumpingSolutionsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_InventoryManagementServiceMember" name="InventoryManagementServiceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="dxpe_LesseeClassesofLeasedAssetsNumber" name="LesseeClassesofLeasedAssetsNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="dxpe_LesseeLeaseRenewalTerm" name="LesseeLeaseRenewalTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="dxpe_LesseeOperatingLeaseLeaseNotyetCommencedAmount" name="LesseeOperatingLeaseLeaseNotyetCommencedAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="dxpe_NewAccountingPronouncementsNotYetAdoptedPolicyTextBlock" name="NewAccountingPronouncementsNotYetAdoptedPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="dxpe_OperatingIncomeExcludingAmortization" name="OperatingIncomeExcludingAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="dxpe_OperatingIncomeForReportableSegments" name="OperatingIncomeForReportableSegments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_OperatingLeaseLiabilitiesRollForward" name="OperatingLeaseLiabilitiesRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_OperatingLeaseRightofUseAssetRollForward" name="OperatingLeaseRightofUseAssetRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_OtherCurrentandNoncurrentLiabilitiesMember" name="OtherCurrentandNoncurrentLiabilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_PromissoryNoteDueJanuary2021Member" name="PromissoryNoteDueJanuary2021Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_RemeasurementAdjustmentsAbstract" name="RemeasurementAdjustmentsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_ServiceCentersMember" name="ServiceCentersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_StaffingServicesMember" name="StaffingServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_SupplyChainServicesMember" name="SupplyChainServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="dxpe_TermLoanBMember" name="TermLoanBMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
