EXHIBIT A

JOINT FILING AGREEMENT

            The undersigned each agree that this joint Amendment No. 1 to Schedule 13D dated August 30, 2002 relating to the shares of common stock, $0.01 par value per share, of OMNI Energy Services Corp., to which this Agreement is attached as Exhibit A, shall be filed on behalf of the undersigned.

    August 30, 2002                                                             /s/ Steven T. Stull

Date   Steven T. Stull

ADVANTAGE CAPITAL PARTNERS LIMITED

PARTNERSHIP

ADVANTAGE CAPITAL PARTNERS II

LIMITED PARTNERSHIP

By:     Advantage Capital Corporation, General Partner

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL CORPORATION

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL PARTNERS III

LIMITED PARTNERSHIP

By:     Advantage Capital Management Corporation, General Partner

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL

MANAGEMENT CORPORATION

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL PARTNERS IV

LIMITED PARTNERSHIP

By:     Advantage Capital Financial Company, L.L.C., General Partner

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL FINANCIAL

COMPANY, L.L.C.

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL PARTNERS V

LIMITED PARTNERSHIP

By:     Advantage Capital Advisors, L.L.C., General Partner

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL ADVISORS, L.L.C.

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL PARTNERS VI

LIMITED PARTNERSHIP

By:     Advantage Capital NOLA VI, L.L.C., General Partner

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL NOLA VI, L.L.C.

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL PARTNERS VII

LIMITED PARTNERSHIP

By:     Advantage Capital NOLA VII L.L.C., General Partner

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL NOLA VII, L.L.C.

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL PARTNERS VIII

LIMITED PARTNERSHIP

By:     Advantage Capital NOLA VIII L.L.C., General Partner

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL NOLA VIII, L.L.C.

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL PARTNERS IX

LIMITED PARTNERSHIP

By:     Advantage Capital NOLA IX, L.L.C., General Partner

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL NOLA IX, L.L.C.

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL PARTNERS X

LIMITED PARTNERSHIP

By:     Advantage Capital NOLA X, L.L.C., General Partner

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL NOLA X, L.L.C.

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL TECHNOLOGY

FUND, L.L.C.

By:     Advantage Capital Technology Advisors, L.L.C., Managing Member

By:       /s/ Steven T. Stull

Steven T. Stull, President

ADVANTAGE CAPITAL TECHNOLOGY

ADVISORS, L.L.C.

By:       /s/ Steven T. Stull

Steven T. Stull, President