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Factorial Energy

Transportation · Woburn, United States · Founded 2013

Transformational Solid-state Battery Technology MoreLess

Factorial Energy is a pioneering startup that operates in the energy sector, specifically focusing on the development and commercialization of solid-state batteries. The company has been investing heavily in research and development over the past six years, resulting in the creation of their proprietary Factorial Electrolyte System Technology (FEST®). This technology is a new type of battery that is safer, more efficient, and has a higher energy density than traditional batteries.

Factorial Energy's primary market is the automotive industry, where they work with some of the world's largest auto Original Equipment Manufacturers (OEMs) and battery manufacturers. Their business model is centered around the production and sale of their FEST® system to these manufacturers, who then incorporate the technology into their electric vehicles (EVs). The company's solid-state batteries are set to debut in the high-spec market, serving as a test for their performance and manufacturability.

The company has recently expanded its operations by opening a new 67,000 square foot factory, signaling a significant step towards large-scale production. Factorial Energy's strategy is built on successful collaboration along the supply chain, partnering with major auto OEMs, battery manufacturers, and strategic material suppliers.

In summary, Factorial Energy is a promising startup that is poised to revolutionize the EV battery market with its innovative solid-state battery technology. The company's strong partnerships and customer-driven approach position it well for future growth in the rapidly expanding electric vehicle market.

Keywords: Factorial Energy, solid-state batteries, Factorial Electrolyte System Technology (FEST®), electric vehicles, automotive industry, Original Equipment Manufacturers (OEMs), battery manufacturers, strategic material suppliers, high-spec market, large-scale production.

Company overview

Factorial Energy company information

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

Status
Operational
Founded
2013
Headquarters
Woburn, United States
Employees
132
Open positions
17
Dealroom signal
74.5
client focusb2btechnologyHardwaretechnologyDeep TechtechnologyNanotechsub industryEnergy Efficiencysub industryEnergy Storagesub industryVehicle Productionbusiness modelManufacturingsectorSpinoutsectorSustainable Development GoalssectorEV Battery ProductionsectorVerified Unicorns and $1B ExitssectorSPAC IPO ClosedsectorSolid-State Battery

Valuation & funding

Factorial Energy funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
POST IPO EQUITYOther financing Jun 2026 $0 Stellantis
SPAC PRIVATE PLACEMENTOther financing Jun 2026 $100M Cartesian Growth Corporation III
SPAC IPOOther financing Jun 2026 $0 $1.3B Cartesian Growth Corporation III
LATE VCOther financing Feb 2026 $0 Philenergy
CONVERTIBLEOther financing Jan 2026 $0 Poscofuturem
SERIES DOther financing Jan 2022 US Department of War · Hyundai Motor Company · NYSERDA · Kia Motors
SERIES BOther financing Oct 2021 Hyundai Motor Company · Kia Motors
SERIES AOther financing Apr 2021 WAVE Equity Partners · Gatemore Capital Management
SERIES AOther financing Mar 2017 NXT Ventures · Helios Climate Ventures LLC · WAVE Equity Partners
GRANTOther financing Mar 2015 Small Business Innovation Research
Showing 10 recorded eventsUnlock the complete deal history →

Growth signals

Factorial Energy website traffic

Latest recorded traffic for Factorial Energy is 32K monthly website visits, up 290.2% over the last three months. Factorial Energy's team grew 6.5% over the past year.

Latest monthly visits32K 3-month web change+290.2% 1-year team growth+6.5%
Monthly website visits59 observations · Apr 2021–Jul 2026
Hover or focus a point to see its exact monthly valueCompare with peers →

Comparisons

Factorial Energy 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

Factorial Energy's talent

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Team profiled 6 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

24 investors on Factorial Energy's cap table

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

Seed 1 investor entered at this stage
Series A 7 investors entered at this stage
NXT Ventures
Helios Climate Ventures LLC
WAVE Equity Partners
Gatemore Capital Management
Kia Motors
Hyundai Motor Company
Poscofuturem
Series B+ 15 investors entered at this stage
Stellantis
US Department of War
NYSERDA
Eden Rock Capital Management LLP
Stellantis Ventures
Mercedes-Benz Capital
Carbon to Clean
Mercedes-Benz Group
Fraser McCombs Capital
North Sky Capital
Ithaka Partners
Hermitage Capital
Dynavolt Renewable Energy Technology
Philenergy
Cartesian Growth Corporation III
Other known 1 additional known investor
Cornell University

Global footprint

Where Factorial Energy has talent and traffic

Workforce by country
9 countries with
team presence
🇺🇸 United States75%
🇰🇷 South Korea14.8%
🇩🇪 Germany2.3%
🇫🇷 France1.1%
🇯🇵 Japan1.1%
Top 5 of 9 shown

In the news

Latest news about Factorial Energy

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

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Market sentiment

What the market is saying about Factorial Energy

An AI-synthesized read of the highest-engagement posts about Factorial Energy 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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