1 | 1 | Brown & Root Industrial Services LLC 2600 Citiplace Drive, Suite 500, Baton Rouge 70808 225-778-7655 | brownandroot.com
| Andy Dupuy President and CEO
| $348 million 60%
| DNR DNR DNR
| Engineering, construction, turnaround, maintenance and specialty services including cooling towers and soft crafts
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2 | 2 | S&B Engineers and Constructors Ltd. 12021 Lakeland Park Blvd., Baton Rouge 70809 225-292-0050 | sbec.com
| Dane D'Aquin VP of Central Region operations
| $55.5 million 100%
| 47 0 200
| Full multidisciplinary engineering, procurement and construction company
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3 | 3 | Hargrove and Associates 4150 S. Sherwood Forest Blvd., Baton Rouge 70816 225-227-2000 | hargrove-epc.com
| Shelley Nettles Baton Rouge operations leader
| $47.64 million 85%
| 49 12 300
| Full-service, multidisciplinary EPC, engineering, automation and technical services firm
|
4 | 4 | CSRS 8555 United Plaza Blvd., Baton Rouge 70809 833-523-2526 | csrsinc.com
| Tim Barfield President
| $40.03 million 25%
| 16 11 122
| Program management, planning, civil engineering, project management, consulting
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5 | 6 | GHD Services Inc. 2237 S. Acadian Thruway, Baton Rouge 70808 225-292-9007 | ghd.com
| D. Wascom, J. Ellis, B. Tozel, N. Casten, J. Anthon Principals
| $30.5 million 85%
| 11 8 100
| Water, energy and urbanization, environment, property and buildings, transportation, and sustainability
|