Factorial Energy
Closed (deSPAC)Profile in progress
- What it is
- Founded and headquartered in the Boston, Massachusetts, area, Factorial operates at the forefront of solid-state battery development, offering safe, high-performance alternatives to traditional lithium-ion technologies
- What it’s doing now
- Merging with Cartesian Growth Corp III (CGCT) — closed (despac).
- What you should know
- Data is still being assembled for this company — what is shown below is everything we have verified so far.
The business, per its filings
SEC primaryFounded and headquartered in the Boston, Massachusetts, area, Factorial operates at the forefront of solid-state battery development, offering safe, high-performance alternatives to traditional lithium-ion technologies. Its proprietary FEST® (Factorial Electrolyte System Technology) and Solstice™ platforms deliver greater energy density, enhanced safety, and compatibility with existing manufacturing systems. Factorial’s commercial partnerships include global automotive leaders such as Mercedes-Benz, Stellantis, Hyundai Motor Company, and Kia Corporation. Early investors include GVP Climate in partnership with Gatemore Capital Management and WAVE Equity Partners. For more information, visit www.factorialenergy.com . © 2025 Factorial Inc. All rights reserved. Factorial, the Factorial logo, FEST® and Solstice™, are trademarks or registered trademarks in the United States and other countries.
What the company says about itself
Web research — not auditedFactorial Energy develops high-performance solid-state batteries for eMobility, defense, and AI/robotics. Its platforms include FEST (quasi-solid-state), Solstice (all-solid-state), and Gammatron (AI/machine learning). The company emphasizes American technology leadership, economic and supply chain resilience, and industrialization.
- Markets:
- eMobility | defense | AI/robotics | automotive | aviation/drone | power tools | marine vehicles | consumer electronics | energy storage systems
- Products:
- Factorial Electrolyte System Technology (FEST) - Quasi-Solid-State Battery | Solstice - All-Solid-State Battery | Gammatron - AI/Machine Learning Platform
- Customers:
- Mercedes-Benz | Stellantis
[WEB-INTEL 2026-08-26] 2 finding(s) · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "Factorial Energy wins shareholder approval for SPAC merger with CGCT; CGCT held on May 27, 2026." [https://www.globenewswire.com/news-release/2026/05/27/3302458/0/en/factorial-and-cartesian-growth-corporation-iii-announce-approval-of-business-combination-by-cartesian-growth-shareholders.html] · web source asserts a FILING-ONLY figure (deadline / trust / status / floor / price) and it was NOT stored: "Cartesian Growth III (CGCT) & Factorial Inc. completed their business combination on June 5, 2026" [https://www.listingtrack.io/company?symbol=CGCT&name=Cartesian%20Growth%20Corporation%20III]
Source: https://factorialenergy.com/ · captured Aug 26, 2026 · marketing claims are reported as claims, never merged into the filed figures above.
The deal it’s entering
Factorial Energy is merging with Cartesian Growth Corp III (CGCT) currently marked Closed (deSPAC).
| Headline equity value | — |
| PIPE | ≈ $100M · unsourced |
Structure per SEC accession(s) 0001104659-26-035439. How to read these numbers: headline vs effective valuation · what a definitive agreement commits
What exactly is being valued, and at what
Common questions
Is Factorial Energy going public?
Factorial Energy has an approved merger with the SPAC Cartesian Growth Corp III (CGCT). Deal status: Closed (deSPAC).
Does Factorial Energy have revenue?
The filings we've parsed don't state a usable revenue figure yet; this profile is updated as new documents land.
Educational content, not investment advice.