Solutions Ecosystems Reports Resources Data Pricing Login Book a demo
Power Law company profile

Helion Energy

Energy · Everett, United States · Founded 2013 Unicorn

Helion Energy, Inc. is developing a pulsed non-ignition fusion technology to produce fusion power using deuterium and helium-3

Valuation
$5–10B
Latest valuation · 2026
Unlock exact value
Revenue
$100–500M
Latest reported FY
Unlock exact value
Headcount
500–1k
Current team size
Unlock exact value

Investors

9 investors on Helion Energy's cap table

Sourced from Dealroom's funding history. Investor profile links are shown where available.

Seed 1 investor entered at this stage
Series A 1 investor entered at this stage
Mithril
Series B+ 7 investors entered at this stage
Lightspeed Venture Partners
Nucor
Dustin Moskovitz
Sam Altman
SoftBank
Good Ventures
Capricorn Investment Group

Ownership

Who owns Helion Energy

Estimated cap table from Dealroom's shareholder data — share of equity by holder. Stakes as last recorded by Dealroom (2026). Percentages are indicative.

28.5% Founders

Some investors are hidden on this public profile. See the full cap table on Dealroom →

Global footprint

Where Helion Energy has talent and traffic

Workforce by country
3 countries with
team presence
🇺🇸 United States99.3%
🇨🇭 Switzerland0.5%
🇨🇦 Canada0.4%
3 countries shown
Web traffic by country
67K monthly visits
across markets
🇺🇸 United States53.4%
🇨🇦 Canada9.6%
🇬🇧 United Kingdom4.2%
🇩🇪 Germany3.6%
🇮🇳 India3.6%
Top 5 markets shown

Talent graph

The shape of Helion Energy's talent

Dealroom maps Helion Energy's team person by person — pinpointing the standout operators and scoring them across the six dimensions investors underwrite. The counts and shape below are a public preview; the named individuals and exact scores live in the platform.

22 standout operatorsDealroom-flagged across the org
DimensionScore
AI Talent Score hidden — book a demo
Engineering Score hidden — book a demo
Product Score hidden — book a demo
Go-to-market Score hidden — book a demo
Leadership Score hidden — book a demo
Research Score hidden — book a demo
Book a demo to unlock Helion Energy's exact scores

Source: Dealroom Talent Intelligence. Public profiles show counts and the team's shape only — request a demo for the named individuals, per-person seniority and tenure, and team benchmarks vs peers.

Patent intelligence

$4M patent portfolio · 19 active families

Estimated portfolio value
$4M
0.07% of valuation · 23.6× smaller than top peer TAE Technologies ($92M)
19 active patent families
Where Helion Energy innovates Atomic physicsField-reversed configurationMechanical engineeringChemistryPlasma

Where Helion Energy concentrates vs peers

Each axis is a top-10 topic across Helion Energy and its closest peers. #1 = 100, #10 = 10, absent = 0.

Compare against

Source: Dealroom Patent Intelligence · Patsnap. Request a demo for the full per-sub-category breakdown, individual records, and quality-score history.

Market sentiment

What the market is saying about Helion Energy

An AI-synthesized read of the highest-engagement posts about Helion 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

See Helion Energy on the full Dealroom platform

Live deal flow, founder pedigree, hiring signals, revenue trajectory, and the full cap table.