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Electrified Thermal Solutions

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Electrified Thermal Solutions, Inc. is developing the Joule Hive: a new energy storage technology that converts surplus zero-carbon electricity into heat

Boston, United StatesFounded 2020Energy
Valuation $100–250M Last recorded · 2024
Headcount <100 Current team size
Total funding $50–100M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Electrified Thermal Solutions and the history behind them.

About Electrified Thermal Solutions

Electrified Thermal Solutions is a pioneering startup that is revolutionizing the industrial heating sector by electrifying firebricks. The company's innovative product, the Joule Hive thermal battery (JHTB), is a result of nearly a decade of research at MIT. The JHTB is a thermal energy storage system that uses electrically and thermally conductive bricks to provide low-cost, decarbonized heat for industrial applications. The system can reach temperatures up to 1,800°C (3,275°F), making it suitable for high-temperature industries such as steel, cement, glass, and chemicals.

The company's business model involves partnering with existing brick manufacturers to ensure scalability. The electrically conductive firebrick, the core of the JHTB, is a game-changer in the industry. It can convert electricity to high temperatures, enabling the electrification of high-temperature industries. Moreover, the high temperatures achieved by the bricks allow for energy storage with over 95% efficiency. This means that inexpensive off-peak electricity can be used to reduce the cost of decarbonization, making it competitive with existing fossil fuel sources.

The JHTB works by running electricity through the bricks to heat them up to 1,800°C. The thermal energy is stored at that temperature and then discharged by running air or another gas through the brick channels. This heat can then be used in any furnace, boiler, turbine, or kiln. This innovative approach to industrial heating positions Electrified Thermal Solutions as a leader in the decarbonization of the industrial sector.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2020
Headquarters
Boston, United States
Employees
24
Open positions
None listed
Dealroom signal
90.8/100
Sub-industry
Clean Energy, Energy Storage
Sector
Energy, Spinout, Sustainable Development Goals, Thermal Energy Storage, Climate Tech, Stationary Energy Storage, Industrial Electrification, NIF defense security and resilience, NIF Energy Security and Climate Change
Technology
Hardware, Deep Tech
Business model
Manufacturing
Client focus
b2b

Funding history

7 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
EARLY VCOther financing Sep 2025 $0 — ArcelorMittal ↗
EARLY VCOther financing Dec 2024 $19M $76M Clean Energy Venture Group · Vale · TechEnergy Ventures · Tupras Ventures ↗
Showing the latest 2 of 7 recorded eventsBook a demo for the full funding history →

Growth signals

Electrified Thermal Solutions website traffic

Latest recorded traffic for Electrified Thermal Solutions is 2.1K monthly website visits, down 63.8% over the last three months. Electrified Thermal Solutions's team grew 50% over the past year.

Latest monthly visits2.1K 3-month web change-63.8% 1-year team growth+50%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

12 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed2 investors entered at this stage

  • MassVentures
  • US Department of Energy

Series A9 investors entered at this stage

  • Starlight Ventures
  • Clean Energy Ventures
  • Clean Energy Venture Group
  • Vale
  • TechEnergy Ventures
  • Tupras Ventures
  • GVP Climate
  • Holcim Accelerator
  • ArcelorMittal

Other known investors1 additional known investor

  • Massachusetts Institute of Technology
Team profiled 4 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 1 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.

Global footprint

Workforce and web traffic by country
Workforce by country
3 countries with
team presence
🇺🇸 United States89.5%
🇮🇹 Italy5.3%
🇳🇱 Netherlands5.3%
3 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Electrified Thermal Solutions on X, ranked by likes and reposts, corporate channels excluded.

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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