Type One Energy Valuation, Funding & Investors

Type One Energy is valued at $900M as of January 2026.

Last Type One Energy valuation

$900M

Undisclosed stage · Jan 2026

Last Type One Energy funding round

$87M

Undisclosed stage · Jan 2026

Cumulative funding Type One Energy raised

$170M

across 3 funding rounds

Key investors in Type One Energy

  • Breakthrough Energy Ventures
  • TDK Ventures
  • GD1
  • Doral Energy-Tech Ventures
  • Centaurus Capital
  • Foxglove Ventures

Type One Energy Overview

About Type One Energy

Type One Energy Group is a Knoxville-headquartered fusion energy developer. Formed in 2019, it builds high-temperature superconducting stellarator reactors using advanced manufacturing and computational design. The FusionDirect program targets a prototype by 2025 at the Oak Ridge National Laboratory site, partnering with utilities for grid-scale power deployment.


Founded

2019

HQ

United StatesGreensboro, NC

Status

Privately held

Customer focus

B2B

Revenue model

Product sales

Valuation

$900M (Jan 2026)

Type One Energy Valuation

Type One Energy is currently valued at $900M, based on its undisclosed-stage round in January 2026.

Type One Energy valuation by funding round

Type One Energy valuation by funding round
DateStageValuation
Jan 2026Undisclosed stage$900M

Type One Energy Funding History

Type One Energy has raised a total of $170M across 3 funding rounds.

Type One Energy's first fundraising round was a $29M seed round in March 2023. The most recent completed round was a $87M undisclosed-stage round in January 2026.

Type One Energy funding rounds

Type One Energy funding rounds
DateStageInvestorsRaisedValuationDeal Summary
Jan 2026Undisclosed stage-$87M$900MType One Energy is a fusion energy startup developing stellarator technology for magnetic confinement fusion to produce clean, limitless power without long-lived radioactive waste or meltdown risks. The company raised $87 million in a convertible note funding round on January 14, 2026, bringing total venture funding to over $160 million. This bridges to a planned $250 million Series B round targeting a $900 million pre-money valuation. Previous funding included a $29 million seed round in 2023, extended to $82.5 million in 2024, backed by Breakthrough Energy Ventures (Bill Gates), Doral Energy-Tech Ventures, TDK Ventures, and others. Type One Energy partners with utilities rather than building plants itself, licensing core fusion technology for others to construct, own, and operate facilities. A key deal is with the Tennessee Valley Authority to site its first commercial plant, Infinity Two, at the retired Bull Run Fossil Plant in Tennessee, aiming for 350 megawatts of electricity in the mid-2030s. The FusionDirect program accelerates commercialization by focusing on pilot power plant design using proven stellarator advances from institutions like University of Wisconsin-Madison and Max Planck Institute, collaborating with MIT and Commonwealth Fusion Systems on components. The funding aligns with surging electricity demand from data centers, projected to triple power use by 2035, and broader electrification trends. Type One positions stellarators as reliable for prolonged plasma control, targeting grid integration within the next decade via capital-efficient partnerships.
Jul 2024SeedBreakthrough Energy Ventures (lead); Foxglove Ventures; GD1; Centaurus Capital$54M-Type One Energy is a nuclear fusion startup backed by Breakthrough Energy Ventures, developing stellarator-based magnetic confinement technology for commercial power generation. The company's approach differs from traditional fusion in that it plans to license technology to power providers rather than build and operate plants directly, positioning itself as a technology vendor in the clean energy space. Type One finalized an $82.5 million seed financing round in 2024 that was originally started at $29 million in 2023. Investors included Breakthrough Energy Ventures, Centaurus Capital, Doral Energy-Tech Ventures, TDK Ventures, Foxglove, and funds from Australia and New Zealand including GD1. The company is currently raising a $250 million Series B round at a $900 million pre-money valuation, bringing total venture funding to over $160 million. Type One signed a landmark deal with the Tennessee Valley Authority to deploy its first commercial power plant, called Infinity Two, at the site of the former Bull Run coal plant, expected to generate 350 megawatts and come online in the mid-2030s. The company benefits from surging demand for clean electricity driven by data centers, with projections showing data center electricity consumption could nearly triple by 2035 and global electricity demand growing approximately 4% annually.
Mar 2023SeedBreakthrough Energy Ventures (lead); Doral Energy-Tech Ventures (lead); TDK Ventures (lead)$29M-Type One Energy is a fusion energy company developing stellarator technology through its FusionDirect program, aiming for a direct path to commercialization with a fusion pilot power-plant by 2030. On March 28, 2023, it closed an oversubscribed $29 million first financing round co-led by Breakthrough Energy Ventures, TDK Ventures, and Doral Energy-Tech Ventures, with participation from Darco, Grantham Foundation, MILFAM, Orbia Ventures, Shorewind Capital, TRIREC, VAHOCA, and others. This seed round launched the company's partner-rich, capital-efficient approach leveraging advances in stellarator performance, plasma science, high-temperature superconducting magnets, and advanced manufacturing. The 2023 round appointed Christofer Mowry as CEO and positioned Type One Energy to pursue the lowest-risk pathway to fusion energy. Subsequent developments include finalizing an expanded $82.4 million seed financing in July 2024, attracting global investors from Asia-Pacific like GD1 in New Zealand and Australia, plus follow-on from Breakthrough Energy Ventures. This built on the initial $29 million, reaching approximately $82.5-$87 million total seed capital. Type One Energy has advanced partnerships for commercialization, including a collaboration with TVA for a 350-megawatt Infinity Two fusion power plant at the former Bull Run Fossil Plant in Tennessee, supported by Governor Bill Lee for job creation and energy independence. TVA issued a Letter of Intent, with Infinity One prototype commissioning targeted for 2029 and Infinity Two construction potentially starting in 2028 pending approvals. AECOM partnered for design-engineering services, and the company submitted Tennessee's first fusion license application for Project Infinity at Bull Run Energy Complex. A later pre-Series B round was reported in process at a $900 million pre-money valuation targeting $250 million raise, but no details on the specified 2023 round's valuation or financial metrics like revenue or EBITDA near March 2023.

Who has invested in Type One Energy?

6 investors have backed Type One Energy across its funding rounds, including Breakthrough Energy Ventures, TDK Ventures, GD1, Doral Energy-Tech Ventures, Centaurus Capital and Foxglove Ventures.

Lead investors include Breakthrough Energy Ventures, Doral Energy-Tech Ventures and TDK Ventures.


Type One Energy Investors

Investors in Type One Energy by funding rounds participated
InvestorHQRoundsRoleFirst check
Breakthrough Energy VenturesFranceParis2LeadMar 2023
Foxglove VenturesAustraliaPerth1ParticipantJul 2024
Doral Energy-Tech VenturesIsraelRamat Gan1LeadMar 2023
GD1New ZealandAuckland1ParticipantJul 2024

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Type One Energy Competitors

Type One Energy competitors include listed companies like Reliance Power, Engie Energia Peru and SP New Energy, and private ones like Desert Sunlight Investment, New England Reliable Hydropower and aventron.

Public and private companies comparable to Type One Energy
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Desert Sunlight InvestmentUnited StatesNew York City, NYPrivate--$907M-
Reliance PowerIndiaIndiaPublicly listed$751M$278M$908M-
New England Reliable HydropowerUnited StatesUnited StatesPrivate--$920M-
aventronSwitzerlandSwitzerlandPrivate$200M$136M$936M4.7x
Engie Energia PeruPeruPeruPublicly listed$653M$256M$848M2.0x
SP New EnergyPhilippinesPhilippinesPublicly listed$25M($46M)$958M-

Type One Energy Public Comps

Type One Energy is still privately-owned, but its public comps include Deep Yellow, Reliance Power, Mitsuuroko Group Holdings, Nano Nuclear Energy, Karoon Energy, Waaree RTL, Engie Energia Peru, SP New Energy, Grupo TSK and Greencoat Renewables.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Deep Yellow$11K($10M)69615.2x192.7x(81.9x)(44.2x)
Reliance Power$751M$278M3.2x-8.6x-
Mitsuuroko Group Holdings$2.2B$121M0.4x0.4x7.4x-
Nano Nuclear Energy-($39M)-205.2x(8.5x)(6.7x)
Karoon Energy$629M$247M1.9x2.0x4.8x3.3x
Waaree RTL$347M$66M2.5x1.9x13.3x10.8x
Engie Energia Peru$653M$256M1.9x2.0x4.9x5.2x
SP New Energy$25M($46M)103.1x-(55.4x)-

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Common questions about Type One Energy

When was Type One Energy founded?Type One Energy was founded in 2019.
Where is Type One Energy headquartered?Type One Energy is headquartered in Greensboro, NC, United States.
Is Type One Energy publicly listed?No, Type One Energy is a private, VC-backed company.
What is Type One Energy's valuation?Type One Energy was last valued at $900M in its undisclosed-stage round in January 2026.
How much funding has Type One Energy raised?Type One Energy has raised $170M across 3 funding rounds.
What was Type One Energy's last funding round?Type One Energy's last funding round was a $87M undisclosed-stage round in January 2026.
Who are Type One Energy's investors?Type One Energy's investors include Breakthrough Energy Ventures, Foxglove Ventures, Doral Energy-Tech Ventures, GD1, TDK Ventures and Centaurus Capital.
Which companies are comparable to Type One Energy?Companies comparable to Type One Energy include Desert Sunlight Investment, Reliance Power, New England Reliable Hydropower, aventron, Engie Energia Peru and SP New Energy.

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