Welcome to MCA,LLC

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We specialize in a wide variety of Mechanical, Electrical & Plumbing (MEP),  Electronic Design,  and Instrumentation & Control Systems Engineering services in both Industrial and Commercial settings.  -learn more-

Company Overview

Marrero, Couvillon & Associates, LLC (MCA) is a mechanical, electrical, electronic and plumbing design engineering firm founded in 1968. MCA routinely provides professional engineering services to clients directly and as consultants to Architects and other engineering firms. We place a high level of importance on project management and the technical quality of our work. All projects are carefully administered by Project Managers throughout all stages of production. Multi-discipline work is subject to on-going coordination, and technical reviews are routinely performed to ensure quality. The firm strives for high levels of principal involvement, personal attention, and systematic approach to design service. Sound business practices and on-going relationships are the backbone of this organization and the substance of stability, growth and over four decades of service.

Marrero Couvillon & Associates, LLC is a certified Disadvantage Business Enterprise (DBE)


Locations - About UsThe main headquarters is a 15–acre, 20,000 square foot facility built in 1971 located in the Valley of the Mississippi River. The location is convenient to the Campus of Louisiana State University and within minutes of the Downtown State Government complex, the Baton Rouge Metro Airport, and to the manufacturing, chemical processing and petroleum refining industrial facilities along the Mississippi River in South Louisiana. The Metairie office provides quick access to the New Orleans business district and Louis Armstrong International Airport in New Orleans.


MCA is licensed to provide professional engineering services in the State of Louisiana, Mississippi, and Florida. Individual staff engineering licenses include Alabama and Texas. Additional state registrations are available as needed on a per project basis.