<SUBMISSION>
<ACCESSION-NUMBER>0001204127-05-000014
<TYPE>5
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20041231
<FILING-DATE>20050207
<DATE-OF-FILING-DATE-CHANGE>20050207
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>ADA-ES INC
<CIK>0001223112
<ASSIGNED-SIC>2890
<IRS-NUMBER>841457335
<STATE-OF-INCORPORATION>CO
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<MAIL-ADDRESS>
<STREET1>8100 SOUTHPARK WAY B
<CITY>LITTLETON
<STATE>CO
<ZIP>80120
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>BISQUE RAMON E
<CIK>0001249570
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>5
<ACT>34
<FILE-NUMBER>000-50216
<FILM-NUMBER>05579487
</FILING-VALUES>
<BUSINESS-ADDRESS>
<PHONE>3037341727
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>8100 SOUTH PARK WAY
<STREET2>SUITE B
<CITY>LITTLETON
<STATE>CO
<ZIP>801204525
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>5
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2004-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0001223112</issuerCik>
        <issuerName>ADA-ES INC</issuerName>
        <issuerTradingSymbol>ADES</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001249570</rptOwnerCik>
            <rptOwnerName>BISQUE RAMON E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8100 SOUTH PARK WAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE B</rptOwnerStreet2>
            <rptOwnerCity>LITTLETON</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>801204525</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>common stock, no par value</value>
            </securityTitle>
            <transactionCoding>
                <transactionFormType></transactionFormType>
            </transactionCoding>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>71350</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Of the amount shown, 16,281 shares are held ion the pension fund account of Dr. Bisque.</footnote>
        <footnote id="F2">Included in the amount shown are 100 shares registered in the name of Dr. Bisque's wife.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Ramon E Bisque</signatureName>
        <signatureDate>2005-02-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
