Tetra Tech EC, Inc. (TtEC) has the depth and breadth of resources to manage and execute any size construction or renovation project in virtually any location ― we can take your project from ground breaking through ribbon cutting. For more than 40 years, TtEC has been improving the quality of life by delivering solidly constructed facilities, safely, on time, and on budget. We have performed $10 billion of construction work, including vertical, horizontal, remediation, industrial and shoreline construction. Our experience encompasses various delivery methods, including design-build (D-B), engineering, procurement, and construction (EPC), build-to-print, and design-bid-build (D-B-B).

TtEC provides cost-conscious, innovative construction approaches and solutions that streamline execution while also effectively managing risk. We have successfully and safely executed major construction projects in over 20 countries, including such remote, austere, and hostile environments as Iraq, Afghanistan, Bosnia, Kazakhstan, Nigeria, Alaska, and the Pacific Islands. TtEC maintains a world-class safety program that has enabled us to maintain a stellar safety record at our construction sites, including VPP OSHA Star status and recertification of our $1.2 billion remediation and construction project at Rocky Mountain Arsenal.

Our construction portfolio includes:

TtEC has completed more than 2,000 engineering, construction, and renovation task orders valued at $3 billion within the past 5 years.