EXHIBIT A JOINT FILING AGREEMENT

EXHIBIT A

JOINT FILING AGREEMENT

The undersigned each agree that this joint Amendment No. 6 to Schedule 13D dated May 25, 2004 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.

May 27, 2004		/s/ Xxxxxx X. Xxxxxx, Xx.
Date		Xxxxxx X. Xxxxx By Xxxxxx X. Xxxxxx, Xx. with power of attorney

	ADVANTAGE CAPITAL PARTNERS II
		LIMITED PARTNERSHIP
	By:	Advantage Capital Corporation,
		General Partner
	By:	/s/ Xxxxxx X. Xxxxxx, Xx.
		Xxxxxx X. Xxxxx, President By Xxxxxx X. Xxxxxx, Xx. with power of attorney
	ADVANTAGE CAPITAL CORPORATION
	By:	/s/ Xxxxxx X. Xxxxxx, Xx.
		Xxxxxx X. Xxxxx, President By Xxxxxx X. Xxxxxx, Xx. with power of attorney
	ADVANTAGE CAPITAL PARTNERS III
		LIMITED PARTNERSHIP
	By:	Advantage Capital Management
		Corporation, General Partner
	By:	/s/ Xxxxxx X. Xxxxxx, Xx.
		Xxxxxx X. Xxxxx, President By Xxxxxx X. Xxxxxx, Xx. with power of attorney
	ADVANTAGE CAPITAL
		MANAGEMENT CORPORATION
	By:	/s/ Xxxxxx X. Xxxxxx, Xx.
		Xxxxxx X. Xxxxx, President By Xxxxxx X. Xxxxxx, Xx. with power of attorney
	ADVANTAGE CAPITAL PARTNERS VI
		LIMITED PARTNERSHIP
	By:	Advantage Capital NOLA VI,
		L.L.C., General Partner
	By:	/s/ Xxxxxx X. Xxxxxx, Xx.
		Xxxxxx X. Xxxxx, President By Xxxxxx X. Xxxxxx, Xx. with power of attorney
	ADVANTAGE CAPITAL NOLA VI, L.L.C.
	By:	/s/ Xxxxxx X. Xxxxxx, Xx.
		Xxxxxx X. Xxxxx, President By Xxxxxx X. Xxxxxx, Xx. with power of attorney
	ADVANTAGE CAPITAL PARTNERS IX
		LIMITED PARTNERSHIP
	By:	Advantage Capital NOLA IX,
		L.L.C., General Partner
	By:	/s/ Xxxxxx X. Xxxxxx, Xx.
		Xxxxxx X. Xxxxx, President By Xxxxxx X. Xxxxxx, Xx. with power of attorney
	ADVANTAGE CAPITAL NOLA IX, L.L.C.
	By:	/s/ Xxxxxx X. Xxxxxx, Xx.
		Xxxxxx X. Xxxxx, President By Xxxxxx X. Xxxxxx, Xx. with power of attorney