Townsend, a Lafayette network of addiction treatment centers, was the top-ranked Louisiana firm, at No. 276, on Inc. magazine’s annual list of the fastest-growing privately owned companies.

A total of 39 Louisiana companies made the list, which measures revenue growth 2007 to 2010. There were 14 in Baton Rouge and eight in the Lafayette area.

Between 2007 and 2010, Townsend’s revenue jumped 1,180 percent to $2.3 million. The company grew to 32 workers at five treatment centers.

Michael Handley, Townsend chief executive officer, said the company’s approach — using medications to reduce withdrawal symptoms and treating people on an outpatient basis — has played a major role in Townsend’s growth.

The company sees addiction as a chronic, biological brain illness, Handley said. Townsend’s services include detox, medical stabilization, genetic testing to help establish an addiction risk profile, and treatment.

“We do it all in an outpatient setting where people don’t have to leave their family and risk their job for 30, 60 or 90 days, especially in this economy,” Handley said.

Townsend’s success has drawn interest from people in other communities, Handley said, and he expects the firm to open franchise locations in other parts of Louisiana and out of state over the next year or so.

Resource Environmental Solutions was the highest-ranked Baton Rouge firm to make the Inc. 5000 list, at No. 399. The company restores wetlands and sells credits to developers who damage wetlands in building their projects. The company’s revenue mushroomed by 856 percent over the three-year period to $11.3 million. The company has 23 workers.

Tillage Construction’s three-year growth rate of 294 percent, to $7.7 million, put the Baton Rouge firm at No. 1,032. The company has 14 employees.

“The growth has been directly attributed to federal dollars, the stimulus package, Barksdale (Air Force Base) getting a Cyber Command, and just getting in, doing a bunch of work in that arena, and doing good work,” owner Keith Tillage said.

The other Baton Rouge firms, their ranking and three-year revenue growth follow:

No. 1,042, General Informatics: The information technology services firm, which has 24 employees, had 289 percent revenue growth to $4.7 million.

No. 1,473, inoLECT: The engineering company employs 20 and saw revenue jump 190 percent to $6.3 million.

No. 2,355, Gulf South Technology Solutions: The IT services firm, which employs 20, saw revenue grow 103 percent to $2.1 million.

No. 2,541, LANtec of Louisiana: The IT services firm, with 31 employees, experienced revenue growth of 93 percent to $3.3 million.

No. 2,790, Arkel International: The construction company, which employs 300, had 79 percent revenue growth to $49.2 million.

No. 2,999, MMO Behavioral Health Systems: The mental health and rehab firm employs 507 people and had 69 percent growth to $34.3 million.

No. 3,129, D. Honore: The construction firm, which employs 24, had 63 percent revenue growth to $23.7 million.

No. 3,292, PreSonus Audio Electronics: The firm, which designs recording software and equipment, increased revenue by 57 percent to $28.1 million. PreSonus has 70 employees.

No. 3,407, Window World of Baton Rouge: The vinyl window and door supplier, which employs 125, grew revenue by 53 percent to $35.3 million.

No. 3,672, Starmount Life Insurance: The insurer increased revenue by 43 percent to $60.1 million. Starmount has 174 employees.

No., 3,715, Raising Cane’s Chicken Fingers: The fast-food chain increased revenue 41 percent to $135 million. The company has 3,057 workers.

No. 4,136, The Newtron Group: The construction company grew revenue 28 percent to $365.7 million. Newtron employs 2,500.

The other Lafayette-area firms were:

No. 1,558, Doerle Food Services of Broussard: The food services distributor had $291.6 million in revenue, 177 percent growth and employs 330.

No. 2,517, Bizzuka: The web design and Internet marketing company had $2.4 million in revenue, 93 percent growth and employs 32.

No. 2,564 , Maritime International: The Broussard marine engineering and fabricator had $29.2 million in revenue, 91 percent growth and employs 77.

No. 3,394, Schumacher Group. The emergency medical staffing and management firm had $438.9 million in revenue, 53 percent growth and 1,136 employees.

No. 3,461, Acadian Ambulance Service: The company had $358.3 million in revenue, 51 percent growth and 3,400 employees.

No. 4,034, Advanced Logistics: The offshore oilfield services company had $3.8 million in revenue, 31 percent growth and 13 employees.

No. 4,953, FuzziBunz: The reusable cloth diaper company had $3.3 million in revenue, 4 percent growth and 11 employees.