Hunt, Guillot & Associates603 Reynolds Dr. , Ruston, Louisiana, United States

A multi-disciplined project management & engineering services firm providing professional services to an extensive portfolio of customers throughout numerous industries. We seek to build long-term customer relationships by listening to our clients, leveraging our experience and delivering on our commitments.

Hunt, Guillot & Associates, LLC was founded in Ruston, Louisiana, by a couple of locals with a passion for both engineering and the wood / lumber industry. At that time, Ruston was only known for its famous peaches and purple-eyed peas. Since opening its doors in 1997, Trott Hunt, Jay Guillot, and Don Plummer have grown HGA into a multi-discipline engineering and project management firm with a staff of over 400 employees.

HGA is organized into business units based on the services provided: Engineering, Pipeline Services, Program Management, EPC Services, and Staffing. We supply services to clients in the oil & gas, refining, chemicals, pulp/paper and wood products, biomass, power, and public works industries.

Over the years, HGA has grown from a single trailer to thirteen locations throughout Louisiana, Texas, Alabama, and New York. Providing services in over 30 states, Canada, and Mexico, we are acknowledged as an innovative leader in the project management and engineering community. HGA has been recognized in the past years by Zweig White, ENR, and Inc. 500|5000 - just to name a few, for its construction management, detailed engineering, and program management services.

Ruston, LA (James Building) Office

106 West Mississippi Ave. 
Ruston, LA 71270 

318.255.6825 Office 
318.255.8591 Fax 
1.866.255.6825 Toll Free

Shreveport, LA Office

400 Texas St., 3rd floor, Suite 300
Shreveport, LA 71101 

318.213.6825 Office 
318.213.6841 Fax 
1.866.255.6825 Toll Free

Baton Rouge, LA Office

9357 Interline Drive 
Baton Rouge, LA 70809

225.927.6825 Office 
225.927.6850 Fax 
1.866.255.6825 Toll Free