TRexBio: Detailed Company Information & Corporate Profile
Summary
TRexBio is a biotechnology company headquartered in South San Francisco, California. The firm specializes in T cell biology, regulatory T cells (Treg), immunology, inflammation, and atopic dermatitis.
Founded in 2018, TRexBio employs between 100 and 200 staff and generates annual revenues ranging from $10 million to $50 million. The company focuses on translational research that bridges basic science with clinical applications.
Key leaders include CEO Johnston Erwin, Vice President and Head of Translational Medicine Michael Townsend, Head of Drug Discovery Jesse Lyons, Clinical Trial Manager Tatsinda Spears, and Principal Scientists Jillian Astarita, Jose Valle, Hong An Truong, Claudia Dominguez. The team also features senior scientists and research associates across multiple disciplines.
| TRexBio Website | trex.bio |
| Industries | |
| TRexBio Headquarters Address | 269 E. Grand Ave., South San Francisco, California, 94080 US |
| Company Size | 100-200 employees |
| Specialities & Services | Biotechnology, T Cell Biology, Regulatory T Cell, Treg, Immunology, Inflammation, Atopic Dermatitis |
| Founded | 2018 |
| Estimated Annual Revenue | $10M - 50M |
| Updated: | 2026-09-21 |
TRexBio Org Chart
Chief Executive Officer
Chief Executive Officer
C-Level
Chief Scientific Officer
Chief Financial Officer
Chief Medical Officer
Estimated Website Traffic
The chart shows a decline in traffic to the trex.bio website. In September, traffic decreased to 4699, compared to 6567 in the previous month. The highest traffic in 2026 was recorded in March, reaching 16708 visits.
Workforce Turnover
Number of employees switched from or switched to
Departmental sample breakdown
Length of Employment
TRexBio's workforce includes employees across a wide range of tenure levels.
14% have been with the company for 1 to 2 years29% have been with the company for 3 to 4 years43% have been with the company for 5 to 7 years14% have been with the company for 8 to 10 years
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TRexBio Corporate Information: FAQ
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