Hexium

Nuclear Engineering · Energy Storage
3open roles
$8Mlatest round · Venture round · Jul 2024 · 2 yr ago
$409krevenue · 2024 · French register
2backers · MaC Venture Capital, Refactor Capital

Overview

Hexium is building the next generation of isotope enrichment technology to fuel the nuclear renaissance, starting with lithium.

Funding and backers

Total raised
$8M
1 round on record
Latest round
$8M
Venture round · Jul 2024 · 2 yr ago
Team
6–9
French register · Dec 2023
Hiring now
4
+2 posted in 30 days
Revenue
$409k
2024 · French register
Backers
2
MaC Venture Capital, Refactor Capital
The money's age
Long since its last round
27 months since the last round · and hiring
Momentum
20/100
hiring for its size
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Jul 15, 2024 Raised a round Venture round $8M · SEC Form D Jul 1, 2020 Founded per the company register
Tractionpublic signals, read monthly
Web presence
top 8%
of 133.2M domains by links, Common Crawl
Funding rounds
RoundDateAmountInvestorsSource
Venture round Jul 2024 $8M — SEC Form D
Registers and programsofficial lists and records that name the company
Legal entity Hexium Inc. SEC Form D
Founders and leadersfrom filings, registers and the company's site
Anthony RubioPrésident de SAScompany register
Leonard JarrottExecutive Officer, DirectorSEC Form D
Jacob PetersonExecutive Officer, DirectorSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
Similar startupsby what they do, their industry and backers
Molten Salt SolutionsVenture round $7M · 2 mo ago · Founded 2024 · 11-50 employees
Molten Salt Solutions: Lithium Isotope Enrichment for Advanced Nuclear Power.
Pioniq Technologies201-500 employees
Pioniq is developping the next "beyond-lithium" generation of energy storage devices.
General MatterFounded 2024 · 51-200 employees · 126 roles
General Matter is building domestic uranium enrichment capacity to supply fuel for American nuclear reactors. The company aims to reduce…
Alpha NurVenture round $180k · 10 mo ago · Founded 2022
Alpha Nur is closing the loop on how nuclear fuel is used. Safely powering tomorrow.
Alteva develops ultra-light lithium-sulfur battery technology for aviation, robotics, defense and next-generation mobility.
Ship-based nuclear energy systems that deliver reliable power where industry and nations need it most.

Jobs

Equity · In office · Top Secret · 3+ years exp · PhD · Austin
Python
Apply
≈ $115k – $212k per year (Estimated) · Equity · In office · Top Secret · 5+ years exp · Bachelor's Degree · Austin
Python
KiCad
Cadence Allegro
SpaceTech
ANSYS
Apply
≈ $89k – $168k per year (Estimated) · Equity · In office · Top Secret · 5+ years exp · Bachelor's Degree · Austin
SolidWorks
Apply

Growth

Hiring Momentum
66/100
Growing
Open positions
4
2 opened / 1 closed in 30 days
Median time-to-fill
32 days
faster than 41% of the market
ATS activity
Every ~5 hours
Today
Hiring Dynamics 0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Hardware
50% ▲
Science & Research
25% ▲
Industrial Engineering
25% ▼
Activity Timeline
Added ANSYS to stack Oct 2026
Added Python to stack Oct 2026
Added KiCad to stack Oct 2026
Added Cadence Allegro to stack Oct 2026
New location: Livermore Sep 2026
Added SolidWorks to stack Sep 2026

Financials

Est. Annual Revenue
$409k
2024
Total raised
$8M
Latest round
Venture - Series Unknown
Funding rounds
1
Funding rounds
Round Announced Amount
Venture - Series Unknown 2024 $8M Details

People

Anthony Rubio
Président de SAS
Leonard Jarrott
Executive Officer, Director
Jacob Peterson
Executive Officer, Director
Mike Palank
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data

Tech stack

Technologies named in job postings at Hexium over the last 12 months, by layer, with the share of postings for each.
Technologies in use
5
Postings analysed
4
Stack modernity
68/100
Languages
Python
Developer tools
Cadence Allegro
KiCad
SolidWorks
ANSYS
Sign in to see how your skills match this stack Sign In

Connections

List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors2
50 portfolio companies: Coinbase, Berkeley Yeast, Lucy and 47 more
172 portfolio companies: Q-Factor, FundPanel, RDV Robotics and 169 more

Offices

Where the company hires and what each office is for
Cities
3
Hiring now
1
Countries
2
Busiest office
Austin
Loading the map
Headquarters Builds here Office with open vacancies No open vacancies right now Tap a pin for the office
Montpellier France
HQ
Austin United States
Regional office
Austin
4 open roles 4 posted in 90 days 50% engineering 25% remote 1-10 est. staff
hires for Hardware, Management, Science & Research
seen since Jul 2026 careers board, job postings
Livermore United States
Regional office
LLNL
seen since Sep 2026 careers board