Exergon
Venture capital · Paris, France · Europe
Exergon is a pan-European venture capital firm that invests in energy transition technologies across new nuclear, energy storage, and energy efficiency and AI. It is launched by the investment platform Audacia and provides first tickets of €0.5M to €5M to companies from Pre-Seed to Series A.
Invests inIndustrial & ManufacturingEducation
In its own wordsenergy transitionnew nuclearenergy storageenergy efficiencyartificial intelligencedeeptech
Your fit with Exergon
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See how your round matches what it backs, point by point.
Or find every investor that fitsExergon lists 7 checked portfolio companies on its own site and is named in 3 funding rounds. Its most frequent entry is Seed, 100% of the companies with a known first round. Its largest themes are Industrial & Manufacturing (43%), Education (36%) and Space & Defense (14%). 71% of its companies are based in France. It invests most often alongside AFI Ventures, 360 Capital and At One Ventures.
Counts come from funding rounds that name Exergon, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Entry stage
share of companies by the stage of its first roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 100% |
| Series A | 0% |
| Series B | 0% |
| Growth | 0% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 0 | 0 |
| '26 | 3 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 12th | 7 companies |
| Recent activity | 76th | 3 rounds in 12 months |
| Early stage | 100th | 100% of entries at pre-seed or seed |
| Evidence | 99th | 43% of companies confirmed by a round |
| Sector focus | 77th | 43% in its largest sector |
| Reach | 58th | 3 countries |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| AFI Ventures | 2 |
| 360 Capital | 1 |
| At One Ventures | 1 |
| CDP Venture Capital | 1 |
| Creative Destruction Lab | 1 |
| Eos | 1 |
| EverQuest Capital Partners | 1 |
| Heartfelt | 1 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers7100%
- No longer answers00%
- Points to another company00%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| Industrial & Manufacturing | 43% | 7% |
| Education | 36% | 7% |
| Space & Defense | 14% | 3% |
| Mobility & Logistics | 7% | 1% |
Co-investor network
who it backs companies with, and who they back togetherCompare Exergon head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with Exergon| Date | Company | Stage |
|---|---|---|
| 19 Oct 2026 | Seed | |
| 6 Jul 2026 | Seed | |
| 25 Feb 2026 | Seed |
Round details for Exergon
Amounts, full round histories and every co-investor in Exergon's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
7 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Blue Capsule provides a low-carbon solution for industries that need a secure supply of hot air, steam or electricity | EducationIndustrial & Manufacturing | Portfolio page | ||
| Entroview develops battery diagnostic solutions for electric vehicles | Mobility & LogisticsSpace & Defense | Oct 2026Seed | Page + round | |
| Otrera develops modular fast neutron reactors that can generate electricity and heat | EducationIndustrial & Manufacturing | Portfolio page | ||
| Sinergy Flow is developing a low-cost and sustainable redox flow battery for energy storage on a multi-day basis | EducationIndustrial & Manufacturing | Feb 2026Seed | Page + round | |
| Stellaria develops and offers a new type of nuclear reactor that can renew its fuel and burn high-activity waste during operation. | EducationIndustrial & Manufacturing | Portfolio page | ||
| TaiSan builds next-generation sodium batteries around a novel polymer electrolyte | EducationIndustrial & Manufacturing | Jul 2026Seed | Page + round | |
| VoltR is a French manufacturer of eco-responsible lithium batteries | Industrial & ManufacturingSpace & Defense | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- exergon.com
- Last read
- 5 Nov 2026
- Watching since
- 6 Nov 2026
- Rounds since
- 25 Feb 2026
- Companies checked
- 7
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
Get Exergon's profile as data
Pull Exergon's portfolio, co-investors and changes through one API key or MCP, open every portfolio row, compare it with other firms, and get an email when it adds a company or files a fund.
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- Full listsEvery portfolio row and two-firm overlap
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- AlertsFollow 5 investors for portfolio and fund changes
$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/exergon.com
# also
GET /v1/firms/exergon.com/portfolio
GET /v1/firms/exergon.com/coinvestors
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