Mainmark Bldg. Suite 600
1627 Main Street
Kansas City, MO 64108-1300

Phone: 816-421-1300
Fax: 816-842-1138
Email: gba@gbutler.com
Contact: Kim Pearse, Marketing Director

GBA is a full service professional design firm that provides a wide range of engineering and architectural services to governmental agencies at the municipal, county and state level in Missouri. Our staff includes civil,
structural, mechanical, electrical, fire protection, sanitary, process and traffic engineers; architects, landscape architects, land surveyors, environmental specialists and construction observers. Representative projects include: roadways, bridges and traffic engineering; water and wastewater systems, stormwater management facilities, public buildings, parking structures, building renovation, commissioning and roof consulting. Our Missouri office locations include Kansas City, O'Fallon and St. Louis. Established in 1969, GBA now has 240 employees.