Established in 1967, ISEC is a solutions-driven, employee-owned company with over 1,200 professionals and 25+ offices nationwide. With an average tenure of 8 years, our company-wide expertise delivers complex projects through trusted partnerships, global manufacturing networks, and a culture grounded in integrity, safety, and teamwork. Backed by financial strength and a self-perform model, we offer end-to-end solutions—from concept to closeout—with a relentless focus on quality, innovation, and customer success.
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The ISEC, Inc. annual revenue was $313.5 million in 2026.
Greg Timmerman is the President and Chief Executive Officer of ISEC, Inc..
908 people are employed at ISEC, Inc..
ISEC, Inc. is based in Greenwood Village, Colorado.
The NAICS codes for ISEC, Inc. are [238, 33, 23, 44].
The SIC codes for ISEC, Inc. are [17, 87, 175].