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Boston Materials

Engineering and Manufacturing Equipment · Billerica, United States · Founded 2016

Cutting edge material science company that is developing the next generation of high strength composites MoreLess

Boston Materials is a U.S.-based advanced materials company that develops and manufactures next-generation energy-transfer composites for high-performance electronics, aerospace, and electrified mobility sectors. Its flagship product, Liquid Metal ZRT®, combines vertically oriented carbon fiber (via proprietary Z-axis Fiber™ technology) with a liquid metal matrix to deliver a step change in thermal interface performance. In testing on kilowatt-scale devices such as data center GPUs, the material has demonstrated a device-level cooling improvement of 5-8 °C relative to conventional thermal greases, with a preform design intended for seamless “drop-in” integration into automated assembly workflows.

Beyond thermal interfaces, Boston Materials applies its Z-axis fiber approach to composite reinforcements. Its ZRT interlaminar reinforcement films serve to mitigate delamination in layered composite structures by bridging inter-ply interfaces and enhancing out-of-plane mechanical integrity. The company also pursues applications in hydrogen fuel cell technology, working on lightweight bipolar plates made from recycled carbon fiber composites to reduce weight and cost in fuel cell stacks.

Boston Materials maintains a manufacturing facility in Billerica, Massachusetts, where it deploys roll-to-roll processing lines capable of scaling production to meet industrial demand. Its materials are built with reclaimed carbon fiber, aligning with sustainability objectives. The company has attracted venture funding to accelerate expansion in semiconductor, aerospace, and electrified-vehicle markets, positioning itself as a bridge between materials science innovation and deployment in energy-intensive systems.

Keywords: thermal interface material, Z-axis carbon fiber, composite reinforcement, liquid metal composite, interlaminar strengthening, semiconductor cooling, carbon fiber recycling, advanced materials, hydrogen fuel cell plates.

Company overview

Boston Materials company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2016
Headquarters
Billerica, United States
Employees
33
Open positions
None listed
Dealroom signal
84.0
client focusb2btechnologyHardwaretechnologyDeep Techbusiness modelManufacturingsectorComposite MaterialssectorSpinoutsectorSustainable Development GoalssectorCooling TechsectorIndustrial TechnologysectorAdvanced MaterialssectorInnovative Material TechsectorClimate TechsectorCarbon FibersectorData Centers

Valuation & funding

Boston Materials funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
EARLY VCEquity / VC Nov 2024 $14M $54M Gatemore Capital Management · Collaborative Fund · Valo Ventures · Woori Venture Partners
DEBTDebt Jan 2023 $2M Undisclosed
SERIES AEquity / VC Nov 2021 $12M $48M ACCELR8 · GS Futures · GC Ventures · ACVC Ventures
SERIES AEquity / VC May 2021 $8M $32M Clean Energy Ventures · Valo Ventures · ACCELR8
CONVERTIBLEEquity / VC Dec 2020 $1.3M Clean Energy Ventures
SEEDEquity / VC May 2020 Clean Energy Ventures
CONVERTIBLEEquity / VC Oct 2019 Clean Energy Ventures
SEEDEquity / VC Mar 2019 Clean Energy Ventures · SABIC Ventures
SEEDEquity / VC Nov 2018 Clean Energy Venture Group
GRANTOther financing Apr 2018 Massachusetts Clean Energy Center
Showing 10 recorded eventsUnlock the complete deal history →

Financials

Workforce over time

Available workforce history. Financial fields without reported data are omitted.

YearEmployees
2026 35
2025 28
2024 24
2023 24
2022 14
2021 14
Company filings, research estimates and Dealroom dataOpen the full financial model →

Growth signals

Boston Materials website traffic

Latest recorded traffic for Boston Materials is 5.3K monthly website visits, up 82.8% over the last three months. Boston Materials's team grew 17.9% over the past year.

Latest monthly visits5.3K 3-month web change+82.8% 1-year team growth+17.9%
Monthly website visits51 observations · Jun 2018–Jul 2026
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Comparisons

Boston Materials compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

Showing 8 of the closest matchesCompare every metric →

Talent graph

Boston Materials's talent

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Team profiled 7 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 3 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

19 investors on Boston Materials's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Seed 4 investors entered at this stage
Massachusetts Clean Energy Center
Clean Energy Venture Group
Clean Energy Ventures
SABIC Ventures
Series A 10 investors entered at this stage
Valo Ventures
ACCELR8
GS Futures
GC Ventures
ACVC Ventures
Good Growth Capital
Gatemore Capital Management
Diamond Edge Ventures
Collaborative Fund
Woori Venture Partners
Other known 5 additional known investors
Northeastern University
IDEA: Northeastern University's Venture Accelerator
MassChallenge
Small Business Innovation Research
Technology Pioneers | World Economic Forum

Global footprint

Where Boston Materials has talent and traffic

Workforce by country
1 countries with
team presence
🇺🇸 United States100%
1 country shown

In the news

Latest news about Boston Materials

Recent press, funding announcements, and product moves mentioning Boston Materials — open to read from the original sources.

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Market sentiment

What the market is saying about Boston Materials

An AI-synthesized read of the highest-engagement posts about Boston Materials on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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