Boston Materials

Billerica, MA · Founded 2016 · Privately Held (backing)

Manufacturer of advanced composite materials intended for semiconductor and datacenter thermal management and lightweight aerospace structures. Boston Materials is based in Billerica, MA and was founded in 2016. Its last reported valuation was $56 million in Nov 2022. It has raised $52.6 million across 7 recorded rounds; the latest was a $28.3 million early-stage round in Sep 2024.

Last reported valuation
$56.0M
Oct 2026
Priced at
—
Total raised
$52.6M
Last round
Early Stage VC
Sep 2024
How much has Boston Materials raised?
$52.6Macross 7 recorded rounds · Oct 2019 – Sep 2024

Most recently, Boston Materials raised $28.3M in its Early Stage VC (Sep 2024).

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Boston Materials round by round

7 rounds
Sep 2024Early Stage VC$28.3MSEC filing▮
11 investors participated
Dec 2022Debt$2.0MSEC filing▮
1 investors participated
Oct 2022Early Stage VC$12.0MSEC filing▮
9 investors participated
May 2021Early Stage VC$10.5MSEC filing▮
19 investors participated
May 2020Seed Round$565KSEC filing▮
5 investors participated
Oct 2019Debt$1.5MSEC filing▮
1 investors participated
+ 1 earlier rounds · a free account shows the full history

How much has Boston Materials raised?

Boston Materials has raised $52.6 million across 7 recorded rounds since 2018. The largest was a $565,000 seed round in May 2020; the most recent was a $28.3 million early-stage round in Sep 2024.

Boston Materials has filed 8 Form Ds with the SEC since 2018, most recently in Sep 2025 ($18.2 million sold to 9 investors).

Boston Materials investors

20 investors are on record for Boston Materials, including US National Science Foundation, Collaborative Fund, GS Futures and Woori Venture Partners. The early-stage round in Sep 2024 drew 11 investors.

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Frequently asked about Boston Materials

How much has Boston Materials raised?
Boston Materials has raised $52.6M in total across 7 recorded funding rounds.
When was Boston Materials's last funding round?
Boston Materials's most recent recorded round was Early Stage VC in Sep 2024, raising $28.3M.