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        <entityName>Summit Investors I, LLC</entityName>
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            <street2>18TH FLOOR</street2>
            <city>BOSTON</city>
            <stateOrCountry>MA</stateOrCountry>
            <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
            <zipCode>02116</zipCode>
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        <issuerPhoneNumber>617-824-1606</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
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            <previousName>SUMMIT INVESTORS I LLC</previousName>
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        </offeringSalesAmounts>
        <investors>
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            <signature>
                <issuerName>Summit Investors I, LLC</issuerName>
                <signatureName>/S/ ROBIN W. DEVEREUX</signatureName>
                <nameOfSigner>ROBIN W. DEVEREUX</nameOfSigner>
                <signatureTitle>CFO &amp; MANAGING DIRECTOR OF MANAGER OF MANAGER OF ISSUER</signatureTitle>
                <signatureDate>2013-08-16</signatureDate>
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</edgarSubmission>
