Key facts
- Boston Materials’s last known valuation is $56.0M (Nov 2022).
- It has raised $52.6M across 7 recorded rounds; the latest was Early Stage VC ($28.3M) in Sep 2024.
- Notable investors include US National Science Foundation, Collaborative Fund, GS Futures, Woori Venture Partners, Good Growth Capital — 20 tracked in total.
- Boston Materials has filed 8 Form Ds with the SEC since 2018, most recently Sep 2025 ($18.2M sold to 9 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 7 rounds
- ·The complete investor list — 20 names
- ·Watchlist + deal alerts for Boston Materials
Funding rounds
7 roundsAbout Boston Materials
Manufacturer of advanced composite materials intended for semiconductor and datacenter thermal management and lightweight aerospace structures. The company's materials offer improved thermal, electrical, and mechanical properties, a roll-to-roll manufacturing process with in-line quality control, and a production capacity of square meters annually, enabling sectors like semiconductors, electrified vehicles, and aerospace to achieve efficiency, reliability, and weight reduction in their applications while addressing critical challenges in durability and performance.
- Sector
- Business Products and Services (B2B)
- HQ
- Billerica, MA, United States
- Founded
- 2016
- Employees
- 28
- Website
- bomaterials.com/
- Ownership
- Privately Held (backing)
Boston Materials doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Boston Materials shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Boston Materials in its N-PORT filings yet. We sweep new filings monthly.