Type One Energy

Type One Energy is a fusion energy company dedicated to developing stellarator-based technology for sustainable and clean power. Founded in 2019 and backed by venture funding in 2023, the company combines expertise in fusion science with energy technology development. Its goal is to commercialize fusion power within a decade through the FusionDirect program, which emphasizes a low-risk and capital-efficient approach. The company focuses on stellarator systems that utilize twisted magnetic fields to confine plasma, building on advancements from Germany’s Wendelstein 7-X project. Their Infinity Two design aims for commercial scalability, featuring high-field superconducting magnets and advanced manufacturing techniques. Type One Energy collaborates with partners like the Tennessee Valley Authority to integrate fusion technology into existing power infrastructure and has a licensing agreement with Commonwealth Fusion Systems to enhance their technological capabilities. Led by CEO Christofer Mowry and COO Ryan Guerrero, Type One Energy is committed to a people-centered energy transition, aiming to provide abundant, zero-emission electricity while minimizing radioactive waste.

Renewables & Environment Knoxville, United States Founded 2019 ~104 employees Private · Seed

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Employees
104
+2% in the 3 months to Jun 2025
Revenue / employee
$42.3K
Revenue ~$4.4M
Total funding
$82.5M
Last round Seed, Jul 2024
12-month attrition
3%
Tech: 3%
H1B sponsor
NA
Open jobs
3
Last 30 days

Headcount trend

Type One Energy went from 23 employees in Jul 2023 to 104 in Jun 2025. Jan to Jun 2025: 16 people joined, 2 left.

Headcount data through Jun 2025

Org structure

Headcount by department

Engineering43
Other40
Operations9
Marketing4
Finance3
HR2
Sales2
Design1

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Funding

  • Jul 2024 · Seed · $53.5M · Breakthrough Energy Ventures, GD1
  • Mar 2023 · Seed · $29M · Breakthrough Energy Ventures, TDK Ventures, Doral Energy Tech Ventures

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Type One Energy FAQ

How many employees does Type One Energy have?

Type One Energy has about 104 employees, up 2% over the 3 months to Jun 2025.

What is Type One Energy's revenue per employee?

Type One Energy makes about $42K in revenue per employee, based on $4.4M annual revenue and 104 employees.

How much funding has Type One Energy raised?

Type One Energy has raised $82.5M in total funding; its latest round was Seed in Jul 2024.

Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.