Overview
TrueUp
Trajectory Score
85
/100
Trajectory Rank
Business
Fusion energy
Founded
13 years ago
2013
HQ
Employees
350
Valuation
$5.2 billion
Company type
Private - Venture-Backed
Helion Energy is a Fusion energy company with 105 job openings. It is currently valued at $5.2 billion as a private company. 350 people work at Helion Energy. The company was founded in 2013.
Company grid
Employee happiness →
Growth →
🚀
🐢
😊
😟
Jobs
Open jobs
105
TrueUp
Rank
#414
Top Job Categories
Jobs
1.
Engineering (Hardware)
32
(30%)
2.
Engineering (Software)
20
(19%)
3.
Business Operations & Program Management
5
(5%)
4.
Supply Chain
3
(3%)
5.
Marketing & Growth
2
(2%)
Top Job Locations
Jobs
1.
🇺🇸 Seattle
105
(100%)
2.
🇺🇸 United States
105
(100%)
Top Tech/Tools Mentioned
Jobs
1.
Python
21
(20%)
2.
MATLAB
15
(14%)
3.
SolidWorks
7
(7%)
4.
C++
6
(6%)
5.
AWS
5
(5%)
Financials
Valuation
$5.2billion
Tech Unicorn
Last round - Jan 2025
Latest secondary valuation
$7.0billion
33% from last round
Estimate as of May 5, 2026
Data source: Notice.co
Most recent funding
1 year ago ($425 million)
Total funding
$1.0 billion
Value 'created' (valuation - total funding)
+$4.2 billion
Lead Investor - Seed
Mithril Capital Management
Valuation per employee
$15.0 million
TrueUp
Rank
#327
Culture
Employee sentiment
Would recommend company
94%
20+ reviews
Sources: TrueUp, Glassdoor, Blind
Better than 98% of tech co's
Approve of CEO
David Kirtley
100%
Sources: TrueUp, Glassdoor, Blind
People
Employees
350
Rankings and awards
TIME100 Most Influential Companies
New Frontiers
2026
Geekwire 200
2026
Career-Launching Companies (by Aakash Gupta)
2025
Geekwire 200
2025
Insider Most Promising Startups
2024
More rankings Layoffs
No known layoffs
External research
Top posts
Compare to other companies
Job openings
83
Employees
1,100
Founded
8 years ago
Valuation
$10 billion
Trajectory Score
96
