Tri-Mountain: Detailed Company Information & Corporate Profile
Summary
Tri‑Mountain is a U.S. apparel manufacturer founded in 1993 and headquartered in Irwindale, California. The company employs 100–200 people and reports annual revenue between $10 million and $50 million, reflecting steady growth over nearly three decades of operation.
Specializing in apparel production, Tri‑Mountain offers custom finishing services such as embroidery, heat transfer, and laser etching. Customer service is led by Coleen Sokolowski, with Elise LaFave supporting client relations. Together, they ensure high‑quality finished garments for a range of retail and corporate clients.
| Tri-Mountain Website | trimountain.com |
| Phone Number | 800-824-6464 |
| Industries | |
| Tri-Mountain Headquarters Address | 4889 4th Street, Irwindale, CA, 91706 US |
| Company Size | 100-200 employees |
| Specialities & Services | Apparel, Embroidery, Heat Transfer, Laser Etching |
| Founded | 1993 |
| Estimated Annual Revenue | $10M - 50M |
| Updated: | 2026-09-17 |
Workforce Turnover
Length of Employment
Tri-Mountain's workforce includes employees across a wide range of tenure levels.
10% have been with the company for 8 to 10 years90% have been with the company for more than 11 years
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Tri-Mountain Corporate Information: FAQ
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