CTL|Thompson
Civil EngineeringColorado, United States201-500 Employees
CTL|Thompson is a civil engineering consulting firm that delivers geotechnical, materials, environmental, and structural engineering services, along with construction observation and soil and materials testing. Its work spans the Rocky Mountain region and beyond, covering both major infrastructure programs and single-family residences. The firm employs professionals across engineering, geology, and environmental disciplines, with expertise in foundation design, hazard analysis, and forensic evaluations. Headquartered in Denver, Colorado, CTL|Thompson operates offices in six Colorado cities and maintains locations in Montana and Wyoming. The company traces its roots to a 1977 merger between Robert W. Thompson, Inc. (established 1971) and Commercial Testing Laboratories (established 1947) and has completed more than 100,000 projects since then; a notable development in recent years is a January 2023 partnership with SRPT.