Since its founding in 1984, Trigon, Inc. has become one of the leading construction management firms in Oklahoma. This has been accomplished by an ever present effort to provide a level of service to our clients that is unmatched by our industry competitors. Trigon has provided professional services on a number of prominent projects for both public and private sector Owners. Trigon, Inc. is an Oklahoma incorporated, owned, and operated business providing quality and cost effective construction services. All activities are overseen, coordinated, and managed by an extremely experienced group of Project Managers and Site Superintendents.