Over 20 Years of Excellence in Offshore Transportation
Alliance Offshore, a member of the Alliance Energy Group, is an established offshore transportation company providing crew boats, liftboats, and offshore supply vessels to major and independent energy producers, particularly in coastal and offshore environments. Our services are geared to supporting our clients in connection with i) responsible resource management – enhancing, maintaining, and extending existing production and ii) permanently abandoning and removing, salvaging, and recycling end-of-life energy infrastructure.
Alliance and its affiliates have been operating a wide variety of marine assets in the Gulf of Mexico for decades. Management has significant transportation experience, delivering world-class logistics services with a strong track record of reliability, safety, compliance, and integrity.
Alliance Offshore is headquartered in Larose, Louisiana.
Our Approach
Webster defines "Alliance” as the state of being allied; a bond or connection between parties; an association to further the common interests. From its foundation, Alliance Offshore has embodied that definition.
Our desire to be the premier Offshore Transportation Company in the Gulf of Mexico is rooted in common goals that exist between us and our client: Safety for all personnel, Protection of the Environment, Compliance with all Rules and Regulations. It is our uncompromising belief in execution of these goals that we feel differentiates us.

Our Team
Kris Nelton
Purchasing Manager
985-226-2226
Eric Trosclair
In-House Counsel
985-851-8801
Ralph Lagarde
OSV Crew Boat Operations
985-258-4044
Dawn Bourgeois
Human Resource & Benefits
985-798-5700
Josh Adams
QHSE Manager
985-696-0055
Amy Estay
Administrative Assistant
985-798-5700
Jared Chiasson
Personnel Manager
985-665-4775