SEMA Construction, Inc. is a full-service construction firm. Based in Centennial, Colorado, specializing in heavy civil construction & infrastructure.

SEMA Construction, Inc. was founded in 1991 by Thomas G. Ames and Melvin Browning and has four District offices in: Centennial, CO; Orange County, CA; Orlando, FL and Haslet, TX. At SEMA, we believe a company isn’t defined as much by what they say about conducting their business as it is by what they do in conducting their business. And how do we conduct ours? We do it on time, we do it on budget, and we do it safely. That’s who we are – a general contractor that thrives on doing it right. High...

SEMA Construction, Inc. was founded in 1991 by Thomas G. Ames and Melvin Browning and has four District offices in: Centennial, CO; Orange County, CA; Orlando, FL and Haslet, TX. At SEMA, we believe a company isn’t defined as much by what they say about conducting their business as it is by what they do in conducting their business. And how do we conduct ours? We do it on time, we do it on budget, and we do it safely. That’s who we are – a general contractor that thrives on doing it right. Highways. Earthwork. Bridges and Structures. Dams and Reservoirs. Utilities. Civil Infrastructure. These are our specialties. Since our inception in 1991, we have grown into one of the nation’s top heavy highway construction contractors with a superior reputation for completing large construction projects ahead of time and within budget parameters. And it’s due entirely to our employees who live for achieving quality workmanship within owner specifications. Because at SEMA, we love the details. SEMA is committed to delivering the very best construction services in every project engagement; from our first-rate project management procedures, to our seamless, comprehensive schedule management and cost control measures, we optimize project success while mitigating client risk and creating repeat business.