B

Boston Materials

Manufactures liquid-metal thermal interface materials

Overview

Boston Materials develops advanced energy-transfer composites for high-performance electronics, aerospace, and electrified mobility. Its flagship Liquid Metal ZRT® combines vertically oriented carbon fibers with a liquid metal matrix to form a thermal interface that boosts cooling and is designed as a drop-in preform for automated assembly. The same Z-axis fiber approach is used for interlaminar reinforcement to prevent delamination, and the company is exploring lightweight bipolar plates for hydrogen fuel cells, produced via roll-to-roll processing with reclaimed carbon fiber. The goal is to scale production to meet industrial demand across semiconductors, aerospace, and electrified-vehicle markets while expanding adoption and advancing sustainability through recycled carbon fiber use.

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About Boston Materials

Simplify's Rating
Why Boston Materials is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Automotive & TransportationIndustrial & ManufacturingEnergyAerospace

Company Size

11-50

Company Stage

Early VC

Total Funding

$71.1M

Headquarters

Billerica, MA

Founded

2016

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What believers are saying

  • December 2025 Mitsubishi collaboration targets HPC and AI data-center demand.
  • LMZ1100 already delivered over 10°C cooling gains on kilowatt-scale GPUs and ASICs.
  • The company launched 60-inch-wide industrial-scale Z-axis fiber production in 2025.

What critics are saying

  • Boston Materials remains capital-constrained after $13.5 million in 2024 funding.
  • Second-generation ZRT commercialization depends on Mitsubishi integration labs in Asia.
  • A single thermal-product failure or customer redesign could crush adoption by 2027.

What makes Boston Materials unique

  • Liquid Metal ZRT pairs Z-axis carbon fiber with liquid metal for chip cooling.
  • Boston Materials claims drop-in pick-and-place integration for automated semiconductor assembly lines.
  • Mitsubishi Chemical backed second-generation ZRT development in December 2025.

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Funding

Total Funding

$71.1M

Above

Industry Average

Funded Over

11 Rounds

Early VC funding comparison data is currently unavailable. We're working to provide this information soon!
Early VC Funding Comparison Coming Soon

Benefits

  • Health Insurance
  • Vision Insurance
  • Dental Insurance
  • 401(k) plan
  • 4 weeks of supplemental Paid Parental and Family Leave
  • Unlimited Paid Time Off
  • Holidays: 14 days/year

Growth & Insights and Company News

6 month growth

3%

1 year growth

3%

2 year growth

6%
LRT
Oct 26th, 2026
Heston Materials secures $20M from Volofin Capital Management to fund aviation expansion

Heston Materials, a supplier of aviation components and maintenance materials, has secured initial funding of $20 million (€17.8 million) from Volofin Capital Management, a London-based specialist finance and alternative asset manager. The money will finance aviation asset purchases and the company's expansion, Heston Materials said on Monday. "This financing is an important stage for Heston Materials," said director Kęstutis Volungevičius. He said it gives the company more room to carry out strategic plans, widen its range of products and services, and respond more flexibly to changing market needs. Heston Materials serves airlines, maintenance, repair and overhaul (MRO) organisations, and other aviation players worldwide. It belongs to Heston Aviation Group, whose ultimate beneficiaries are two Lithuanian citizens.

Qube Mark
Jun 26th, 2026
Mitsubishi Chemical and Boston Materials partner to advance semiconductor thermal management for AI data centres

Mitsubishi Chemical Group and Boston Materials have formed a strategic collaboration to develop thermal management solutions for high-performance computing and AI data centre sectors. The partnership includes an investment in Boston Materials from MCG's US-based corporate venture capital arm, Diamond Edge Ventures. Boston Materials manufactures advanced energy transfer materials, whilst MCG is a global provider of advanced materials. The collaboration will focus on advancing semiconductor packaging using liquid metal thermal materials. Financial details of the investment were not disclosed. The partnership aims to address growing thermal management challenges in the AI and data centre industries.

TipRanks
Dec 11th, 2025
Mitsubishi Chemical invests in Boston Materials for AI data centre thermal solutions

Mitsubishi Chemical Group and Boston Materials have announced a strategic collaboration to advance thermal management solutions for high-performance computing and AI data centres. The partnership includes an investment in Boston Materials from Mitsubishi's US-based corporate venture capital arm, Diamond Edge Ventures. The companies will develop the second-generation Liquid Metal ZRT product, a thermal interface material using Boston Materials' patented Z-axis Carbon Fibre technology and proprietary liquid metal alloys. Boston Materials will leverage Mitsubishi Chemical Group's supply chain for high-performance electronic materials. The collaboration aims to address thermal management challenges in semiconductor packaging for data centre applications.

FinSMEs
Nov 7th, 2024
Boston Materials Raises $13.5M Funding

Boston Materials, based in Billerica, MA, raised $13.5M in funding led by AccelR8 and Diamond Edge Ventures, with participation from Valo Ventures, Gatemore Venture Partners, Collab Fund, and Woori Venture Partners. The company plans to use the funds to expand into the semiconductor market, leveraging its Z-axis Fiber™ technology.

FinSMEs
Nov 7th, 2024
Boston Materials Raises $13.5M in Funding

Boston Materials, a Billerica, MA-based manufacturer of advanced materials for semiconductors and aircraft platforms, raised $13.5M in funding

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