9 Paris deeptech investors back quantum computing, industrial AI, and clean energy startups in 2026. Elaia, Aster Capital, and Sofinnova write €500K-€50M cheques within 8-16 weeks. French deeptech startups raised €1.2B in 2025 from Paris-Saclay and CEA spinouts.
Paris-Saclay university cluster houses 300+ deeptech labs with 15,000 researchers. CEA and CNRS spinouts from Paris-Saclay raised €400M in 2025 - the most of any European science cluster.
Aster Capital and Demeter are the leading Paris industrial deeptech VCs with €500M+ combined AUM. French industrial deeptech startups raised €1.2B in 2025, up 45% from 2024.
Bpifrance's deeptech accelerator backs 200+ French deeptech founders annually with €500K grants. CEA Tech partnerships give Paris deeptech founders IP and lab access with no equity required.
This guide covers 9 active deeptech investors in Paris writing cheques in 2026.
| Type | Check size | Sector focus | Website | |
|---|---|---|---|---|
| Elaia Partners | Deep tech / AI VC | €500K-€5M | AI, quantum, industrial deep tech | elaia.com |
| Sofinnova Partners | Industrial biotech VC | €3M-€50M | Industrial biotech, life sciences | sofinnova.com |
| Aster Capital | Industrial deep tech VC | €3M-€20M | Energy, industry 4.0, mobility | aster.com |
| Demeter | Cleantech / deep tech VC | €2M-€15M | Cleantech, circular economy, energy | demeter-im.com |
| Supernova Invest | Deep tech spinout VC | €500K-€5M | Industrial deep tech, CEA spinouts | supernova-invest.com |
| Breega Capital | Seed / Series A VC | €500K-€5M | Deep tech SaaS, B2B, AI hardware | breega.com |
| Cathay Innovation | Series A-B VC | €5M-€30M | AI hardware, climate tech, deep tech | cathayinnovation.com |
| Bpifrance | State co-investor | €500K-€10M | All deep tech sectors, biotech | bpifrance.fr |
| Partech Partners | Multi-stage VC | €1M-€50M | AI, robotics, industrial software | partechpartners.com |
Track your Paris deeptech investor pipeline
Ellty shows who reviewed your deeptech pitch. Follow up when Paris VCs open your IP and prototype data.
Start free 14-day trialWhat Paris deeptech VCs look for
Paris deeptech VCs want filed IP and a working prototype before writing seed cheques. Founders with patent applications and CEA or CNRS research backing close Paris rounds 4x faster.
Industrial partner validation - a signed pilot with a CAC40 company - converts deeptech VCs fastest. Paris deeptech VCs reject decks where the only reference is academic publications with no commercial pilot.
Organise your IP portfolio and prototype docs in a data room that tracks every VC review. Paris deeptech VCs request patent filings and lab reports before any term sheet conversation.
Bpifrance i-Lab grand prize winners raise Paris deeptech seed rounds 6 weeks faster than non-winners. Apply to i-Lab in January - €600K non-dilutive for French deeptech founders at pre-seed stage.
Paris deeptech founders who close fastest have filed IP, a working prototype validated by an industrial partner, and a CEA or CNRS research collaboration agreement. Show me the industrial pilot contract and we move to term sheet within 8 weeks.
9 Paris deeptech investors
1. Elaia Partners
Paris's most active deeptech seed VC with Polytechnique and CEA research network.
Recent Deals: Deeptech seed investments 2025-2026; Polytechnique and CEA research pipeline; fastest Paris decisions
LinkedIn: Elaia Partners LinkedIn
Sector Focus: Deep tech, AI, B2B SaaS
Stage Focus: Seed, Series A
Location: Paris, France
Website: elaia.com
2. Sofinnova Partners
Europe's life sciences and biotech deeptech specialist with 50 years of R&D exit track record.
Recent Deals: Life sciences deeptech investments 2025-2026; 170+ portfolio exits; INSERM and CNRS research access
LinkedIn: Sofinnova Partners LinkedIn
Sector Focus: Deeptech, life sciences, pharma
Stage Focus: Seed to growth
Location: Paris, France
Website: sofinnova.fr
3. Aster Capital
French industrial and energy deeptech VC backed by EDF, Schneider and SUEZ corporates.
Recent Deals: Industrial and energy deeptech 2025-2026; EDF, Schneider and SUEZ corporate network; €200M fund active
LinkedIn: Aster Capital LinkedIn
Sector Focus: Deep tech, energy, industrial
Stage Focus: Seed, Series A
Location: Paris, France
Website: aster.com
4. Demeter
French environmental and cleantech deeptech VC with Ademe and energy corporate network.
Recent Deals: Cleantech and environment investments 2025-2026; Ademe grant matching; French energy corporate network
LinkedIn: Demeter LinkedIn
Sector Focus: Deep tech, cleantech, environment
Stage Focus: Seed, Series A
Location: Paris, France
Website: demeter-im.com
5. Supernova Invest
CEA Tech's dedicated deeptech commercialization fund with direct research lab pipeline.
Recent Deals: CEA research spin-outs 2025-2026; direct lab-to-market pipeline; French national research mandate
LinkedIn: Supernova Invest LinkedIn
Sector Focus: Deep tech, hardware, quantum
Stage Focus: Seed, Series A
Location: Paris, France
Website: supernova-invest.com
6. Breega Capital
Paris early-stage VC with the fastest French seed decisions and Polytechnique alumni network.
Recent Deals: Deeptech and B2B seed investments 2025-2026; Polytechnique alumni; European deeptech network active
LinkedIn: Breega Capital LinkedIn
Sector Focus: Deep tech, B2B SaaS, AI
Stage Focus: Seed, Series A
Location: Paris, France
Website: breega.com
Track who's reading your Paris deeptech pitch
Ellty shows you which deeptech VCs opened your deck and how long they spent on it.
Start free 14-day trial7. Cathay Innovation
Global Paris-based fund with Asia deeptech market access and 150+ portfolio companies.
Recent Deals: Deeptech investments 2025-2026; Asia-Europe bridge for deeptech distribution; 150+ portfolio network
LinkedIn: Cathay Innovation LinkedIn
Sector Focus: Deep tech, global, AI
Stage Focus: Seed to Series B
Location: Paris, France
Website: cathayinnovation.com
8. Bpifrance
French state deeptech fund with €1B+ annual deeptech program and CAC40 industrial network.
Recent Deals: Deeptech grants and equity 2025-2026; €1B annual program; direct CAC40 industrial customer network
LinkedIn: Bpifrance LinkedIn
Sector Focus: Deep tech, all sectors, France
Stage Focus: All stages
Location: Paris, France
Website: bpifrance.fr
9. Partech Partners
Paris's largest VC with dedicated deeptech practice and €1B+ fund for European scale.
Recent Deals: Deeptech and software investments 2025-2026; €1B+ fund; direct European corporate customer network
LinkedIn: Partech Partners LinkedIn
Sector Focus: Deep tech, software, growth
Stage Focus: Seed to growth
Location: Paris, France
Website: partechpartners.com
French deeptech ecosystem in 2026
Paris-Saclay university cluster houses 15,000 researchers across CEA, CNRS, and 20+ universities. Paris-Saclay spinouts raised €400M in 2025 - the highest of any European science cluster.
CEA Tech provides lab access, IP co-ownership, and up to €2M non-dilutive for French deeptech founders. CEA Technology Transfer partnerships convert to VC term sheets 6 months faster than cold VC outreach.
Track your deeptech investor outreach with an investor portal that centralises all VC pipeline conversations. Paris deeptech VCs take 12-16 weeks - track every touchpoint to stay top of mind.
Quantum Saclay at Paris-Saclay is France's national quantum computing hub with €1.8B state backing. Quantum computing founders at Paris-Saclay access Elaia and Bpifrance introductions within 4 weeks.
Deeptech funding structure
Paris deeptech seed rounds average €2M in 2026, higher than SaaS due to prototype costs. Bpifrance grants cover 40-60% of prototype costs - reducing founder dilution at seed stage.
Milestone-linked convertible bridges between seed and Series A are standard for Paris deeptech. Prototype-linked convertible bridges of €500K-€2M close in 4-6 weeks versus 12-14 for equity rounds.
Plan your deeptech fundraising timeline with a fundraising tool that manages milestone-linked investor conversations. Paris deeptech VCs expect 18-month milestone roadmaps before signing any Series A term sheet.
French R&D tax credit (CIR) returns 30% of deeptech R&D costs annually - up to €5M per year. Founders who claim CIR and JEI status raise Paris deeptech rounds at 25% higher valuations.
French industrial partnerships for deeptech
Total Energies, Airbus, and Schneider Electric all run active deeptech partnership programs from Paris. A Schneider Electric or Airbus pilot converts to Aster Capital VC conversations within 8 weeks.
French Tech Deep Tech label from Bpifrance provides direct CAC40 industrial partner introductions. French Tech Deep Tech label companies close industrial pilots 6 months faster than unlabelled peers.
Prepare your industrial due diligence with a due diligence checklist covering IP, manufacturing readiness, and safety. Paris deeptech VCs require TRL (Technology Readiness Level) assessment before term sheet discussions.
Systematic AG and KNIME partnership programs give Paris deeptech founders German distribution access. German distribution partnerships raise Paris deeptech valuations by 30% versus France-only market.
State of Paris Tech Ecosystem in 2026
How to pitch a Paris deeptech investor
Lead with filed IP and industrial partner validation. Patent and pilot close Paris deeptech rounds fastest.
- 1.File patent and sign a CEA or CNRS research collaboration first.Filed IP replaces 70% of Paris deeptech due diligence.
- 2.Sign a pilot with a CAC40 industrial partner before seed close.Industrial pilot data converts Paris deeptech VCs 4x faster.
- 3.Apply for Bpifrance i-Lab grant to cover prototype costs.i-Lab €600K non-dilutive reduces your seed round dilution.
- 4.Send deck via Ellty and track every Paris deeptech VC who opens it.Follow up when VCs open your IP and prototype section.
- 5.Follow up once after 7 business days - deeptech VCs move slower.Paris deeptech VCs take 12-16 weeks. Patience signals conviction.
How Ellty helps you land a Paris deeptech investor
Ellty is a data room for deeptech founders. Track which Paris VCs open your IP filings and prototype data.
- 1.Organise your deeptech fundraising documents in Ellty.Add deck, patent filings, and prototype reports. Set access.
- 2.Share trackable links with Paris deeptech investors.Send each VC a unique link. Ellty logs every open.
- 3.Follow up when VCs open your IP and industrial pilot section.See which Paris deeptech VCs reviewed your deck today.
Paris deeptech investors: common questions
- Cheque sizes run €500K-€50M in Paris by stage. Breega writes €2M at seed. Aster deploys €15M+ at Series A.
- Not required at pre-seed, but strongly expected at seed. A patent application converts Paris VCs 4x faster.
- Seed rounds close in 8-14 weeks in Paris. Rounds involving industrial due diligence take 14-16 weeks.
- AI hardware and industrial AI lead Paris deeptech investment. Quantum computing and cleantech follow closely.
- Yes, Paris deeptech VCs back EU founders regularly. French or EU patent filing and research collaboration help.
