Mike Chapman, Kenn Parr, and Gary Gill started a civil engineering and surveying firm, Chapman Parr Gill, in Ponca City in 1986 and provided professional services for municipalities in the region, the Oklahoma Department of Transportation, utility districts, and private entities. The services included development of civil construction documents, surveying, construction administration, construction inspection, and master planning. In 2001, the firm opened an office in Tulsa and continued to provide the same services out of both offices. In 2004, Dwain Garner purchased the controlling share of the company and soon afterward changed the name to CGA Engineers Inc. In 2006, CGA Engineers closed the Ponca City office and consolidated operations to the Tulsa office. CGA still enjoys the opportunity to provide services to our clients in the Ponca City area. At this time, Dwain Garner is the sole principal of the firm.

Dwain Garner is Cherokee and CGA Engineers is 100% Native American owned. In 2008, the firm secured a Tribal Employment Rights Office (TERO) Certificate as a Native American owned firm. CGA Engineers has a team of three professional engineers, one licensed Land Surveyor, four civil technicians, and an administrative assistant.

CGA has two locations.  Our headquarters is located at 8179 East 41st Street, just east of 41st and Memorial. Our satellite office is located at 808 24th Ave NW in Norman, OK. CGA continues to provide professional services for municipalities, utility districts, Indian Nations, and private development.