Nucleation Capital portfolio

Nucleation Capital (Venture capital) is known to hold 18 companies, 12 of them startups. 6 of them are hiring now, with 208 open roles. Its companies closed 5 venture rounds in 12 months, raising $470.7M. Most of them work in Nuclear Energy, Nuclear Engineering, Waste Management.

Source: Alion Venture capital Oct 20, 2026
Investments
18
12 of them startups
Hiring now
6
208 open roles
Rounds in 12 months
5
$470.7M raised
Exits
1

Companies Nucleation Capital has invested in

Pathpower Venture round $11.7M · 1 mo ago portfolio pageSep 26
Apollo Atomics United States Venture round $31M · 2 mo ago portfolio pageSep 26
Nuclearn Machine Learning · United States Venture round $10.5M · 2 mo ago 1 role portfolio pageSep 26
Focused Energy Nuclear Energy · Germany Series A $240M · 4 mo ago portfolio pageSep 26
Blue Energy Nuclear Energy · United States Venture round $177.5M · 6 mo ago 11 roles portfolio pageSep 26
Aalo Atomics Nuclear Energy · United States Venture round $100M · 14 mo ago 65 roles portfolio pageSep 26
Planetary Technologies Property Development Venture round $7.8M · 17 mo ago portfolio pageSep 26
Zeno Power Nuclear Energy · United States Series B $53.8M · 20 mo ago 11 roles portfolio pageSep 26
Twelve Oil & Gas · United States Series A $57M · 5 yr ago portfolio pageSep 26
Deep Isolation Nuclear Energy · United States Venture round $21.1M · 5 yr ago portfolio pageSep 26
Radiant Nuclear Nuclear Energy · United States 94 roles portfolio pageSep 26
SHINE Technologies Nuclear Energy · United States 30 roles portfolio pageSep 26
Blykalla AB Nuclear Energy portfolio pageSep 26
Copenhagen Atomics A/S Nuclear Energy · Denmark portfolio pageSep 26
CORE POWER Nuclear Energy portfolio pageSep 26
Deployable Energy Research Institutes portfolio pageSep 26
StatCounter Global Stats Web Analytics & Tag Management portfolio pageSep 26

Focus

Markets
Nuclear Energy56%
Nuclear Engineering22%
Waste Management6%
Research Institutes6%
Machine Learning6%
Energy Management6%
Property Development6%
Water Utilities6%
Where its companies are
United States50%
Denmark6%
Germany6%
Stage of its companies
Venture, series not stated70%
Series A20%
Series B10%

Questions about Nucleation Capital

How many companies has Nucleation Capital invested in?

Nucleation Capital is known to hold 18 companies: 12 startups, and 1 exits so far, read from its own portfolio page and the funding rounds that name it.

Is Nucleation Capital investing now?

Nucleation Capital has no round in the press in 12 months and no new company on its portfolio page in 90 days.

What does Nucleation Capital invest in?

The markets of the companies Nucleation Capital holds: Nuclear Energy (56%), Nuclear Engineering (22%), Waste Management (6%), Research Institutes (6%), Machine Learning (6%).

Which Nucleation Capital portfolio companies are hiring?

6 companies Nucleation Capital holds are hiring now, with 208 open roles listed on this page.

Who does Nucleation Capital invest alongside?

The investors that hold the most companies together with Nucleation Capital: Crosscut Ventures, Techstars, Evok Innovations, MOL Switch, Earth Venture Capital.

How this page is made

A company counts as a holding when the investor’s own portfolio page links to it, a program’s catalog lists it, or a funding round in the press names the investor. The numbers are rebuilt every night; each company shows where it came from and when it was first seen.

Sources: its portfolio page, read Oct 3

Nucleation Capital portfolio: 18 known companies. Alion, Oct 20, 2026. https://alion.io/company/nucleation-capital/portfolio

Licence: CC BY-SA 4.0JSON