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Companies

Trailhead Biosystems

Stem cell-derived human cells for drug discovery research

Raised to date

$40.6M

of $40.6M offered across 2 Form D filings

Investors
7
Last filed
Jul 30, 2026

About

Trailhead Biosystems is a Beachwood, Ohio biotechnology company that manufactures human cells derived from induced pluripotent stem cells (iPSCs) for drug discovery, toxicity testing, and regenerative medicine research. Founded in 2015 as a spinout from the Cleveland Clinic and Case Western Reserve University, it uses a proprietary High-Dimensional Design-of-Experiments (HD-DoE) platform combined with high-throughput robotics to optimize differentiation protocols across many variables at once. The company sells off-the-shelf TrailBio cell products alongside small molecules, custom differentiation services, and therapeutic partnerships. It maintains R&D and manufacturing in Beachwood with a satellite office in Cambridge, Massachusetts.

Its HD-DoE platform explores many differentiation variables simultaneously rather than one at a time, which the company says yields highly consistent, reproducible human cell types off the shelf and lets researchers replace animal testing with human-relevant models.

Funding

  • OtherFiled Jul 30, 2026Form D/A
    $40.6M/ $40.6M
  • OtherFiled Jul 30, 2026Form D/A
    $40.4M/ $40.4M

Product

TrailBio iPSC-derived human cells

Research reagents and cell products

A catalog of off-the-shelf human cell types differentiated from induced pluripotent stem cells, including endothelial cells, hematopoietic progenitor cells, vascular leptomeningeal cells, and A9 dopaminergic neurons.

  • Produced via the proprietary HD-DoE high-dimensional design-of-experiments platform
  • High-throughput robotic manufacturing for batch-to-batch consistency
  • Off-the-shelf catalog formats for high-content screening, toxicity testing, and organ-on-chip systems

Built for

Pharmaceutical and biotech drug discovery teams plus academic and contract research labs doing screening, toxicity, and disease modeling work

People on file