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  <xsd:element name="FinanceLeaseLiabilityToBePaidYearFiveAndThereafter" id="ese_FinanceLeaseLiabilityToBePaidYearFiveAndThereafter" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CmtMaterialsLlcAndItsAffiliateEngineeredSyntacticSystemsLlcMember" id="ese_CmtMaterialsLlcAndItsAffiliateEngineeredSyntacticSystemsLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedExpenses" id="ese_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedWorkingCapital" id="ese_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedWorkingCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PercentageOfSegmentRevenuesRecognizedWhenServicesArePerformedForUnaffiliatedCustomersOrWhenProductsAreDeliveredAtPointOfTime" id="ese_PercentageOfSegmentRevenuesRecognizedWhenServicesArePerformedForUnaffiliatedCustomersOrWhenProductsAreDeliveredAtPointOfTime" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageOfRevenuesRecognizedWhenServicesArePerformedForUnaffiliatedCustomersOrWhenProductsAreDeliveredAtPointOfTime" id="ese_PercentageOfRevenuesRecognizedWhenServicesArePerformedForUnaffiliatedCustomersOrWhenProductsAreDeliveredAtPointOfTime" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtInstrumentFacilityFeeBasisPoint" id="ese_DebtInstrumentFacilityFeeBasisPoint" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MpeLimitedMember" id="ese_MpeLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
