9 Helsinki cleantech investors write €50K-€10M for Finnish cleantech startups in 2026. Voima, TESI, and Neste Ventures close in 8-18 weeks. Finland's cleantech market hit €1.4B in 2025.
Finland's cleantech market hit €1.4B in 2025, up 30% from 2024. Helsinki captures 80% of Finnish cleantech VC as Scandinavia's industrial cleantech hub.
Neste Ventures and Fortum Ventures closed €200M in Finnish cleantech in 2025. Finnish cleantech with Neste or Fortum pilot closes Helsinki VC 8 weeks faster.
Finland's biofuel and green hydrogen production grew 35% in 2025. Helsinki cleantech with Neste biofuel or hydrogen integration closes corporate VC fastest.
This guide covers 9 active cleantech investors in Helsinki writing cheques in 2026.
| Type | Check size | Sector focus | Website | |
|---|---|---|---|---|
| Voima Ventures | Deep tech / cleantech VC | €500K-€5M | Finnish cleantech, deep tech, seed | voima.vc |
| Finnish Industry Investment | Public growth VC | €500K-€10M | Finnish cleantech growth, public | tesi.fi |
| Maki.vc | Seed VC | €500K-€3M | Nordic cleantech, B2B seed | maki.vc |
| Business Finland Cleantech | Grant / public fund | €100K-€3M | Finnish cleantech seed, grants | businessfinland.fi |
| Nordic Cleantech Open | Accelerator / VC | €50K-€500K | Nordic cleantech, early-stage | nordiccleantechopen.com |
| Neste Ventures | Corporate VC | €500K-€10M | Finnish energy cleantech, biofuels | neste.com |
| Fortum Ventures | Corporate VC | €500K-€5M | Finnish energy tech, cleantech | fortum.com |
| EIT InnoEnergy Finland | EU seed / grant | €50K-€500K | Finnish energy cleantech, EU fund | innoenergyfinland.com |
| Cleantech Invest | Seed / growth VC | €200K-€5M | Nordic cleantech, energy, B2B | cleantech.fi |
Control your Helsinki cleantech pitch and pilot documentation
Helsinki cleantech VCs require NDA before IP and pilot review. Ellty logs every investor who opens your materials.
Start free 14-day trialWhat Helsinki cleantech VCs look for
Helsinki cleantech VCs require Business Finland grant and field pilot before seed close. Finnish cleantech with Business Finland grant closes Helsinki VC 6 weeks faster than without.
Voima Ventures and TESI require hardware prototype and field-validated data before close. Finnish cleantech with 3-month field pilot closes Voima and TESI seed fastest.
Share your Helsinki cleantech pitch via a virtual data room with timed investor access. Helsinki cleantech VCs open pilot validation and IP sections within 48 hours.
Neste and Fortum Ventures require energy integration pilot and field data at seed. Finnish cleantech with Neste biofuel pilot closes corporate VC 6 weeks faster.
Helsinki cleantech closes in 2026 when founders bring a Business Finland grant, a Neste or Fortum pilot letter, and field-validated emissions reduction data. We fund proof, not potential.
9 Helsinki cleantech investors
1. Voima Ventures
Voima Ventures is Helsinki's leading deep-tech VC, backing science-driven founders across cleantech, life sciences, and quantum tech from its €100M+ Fund III.
Recent Deals: Agate Sensors €4M 2025, Liquid Sun €3M 2025, Westra Materials €2M 2025
LinkedIn: Voima Ventures LinkedIn
Sector Focus: Deep tech, cleantech, life sciences, quantum technology
Stage Focus: Pre-seed, Seed
Location: Helsinki, Finland
Website: voima.vc
2. Finnish Industry Investment
Tesi (Finnish Industry Investment) is a state-owned fund-of-funds and direct investor with €1.8B capacity for 2025–2029, channelling public capital into Finnish cleantech growth and late-stage rounds.
Recent Deals: Fund commitments to cleantech VCs €50M 2025, industrial clean-transition projects €311M in grants 2025
LinkedIn: Tesi LinkedIn
Sector Focus: Cleantech, industrials, deep tech, health tech
Stage Focus: Series A, Growth, Fund-of-Funds
Location: Helsinki, Finland
Website: tesi.fi
3. Maki.vc
Maki.vc is a Nordic pre-seed and seed VC with €100M Fund III, known for contrarian bets on deep tech and brand-driven startups including quantum computing and sustainable materials.
Recent Deals: Distance Technologies €5M 2025, QMill €3M 2024
LinkedIn: Maki.vc LinkedIn
Sector Focus: Deep tech, cleantech, B2B SaaS, quantum
Stage Focus: Pre-seed, Seed
Location: Helsinki, Finland
Website: maki.vc
4. Business Finland Cleantech
Business Finland is the Finnish government's innovation funding agency, distributing €600M+ annually in grants, loans, and VC funding that de-risks early cleantech R&D for Finnish startups.
Recent Deals: Clean transition investment grants €311M awarded 2025, Novana Oy carbon-neutral vanadium plant €30M+ 2025
LinkedIn: Business Finland LinkedIn
Sector Focus: Cleantech, energy transition, industrial decarbonisation
Stage Focus: Pre-seed, Seed, Grants
Location: Helsinki, Finland
Website: businessfinland.fi
5. Nordic Cleantech Open
Nordic Cleantech Open (run by Cleantech Scandinavia) is the region's premier cleantech startup competition, connecting seed-stage innovators with investor networks at its annual Cleantech Capital Day.
Recent Deals: Green14 competition winner 2024 with investor introductions, 13th edition cohort in progress 2025–2026
LinkedIn: Cleantech Scandinavia LinkedIn
Sector Focus: All cleantech verticals, energy, circularity
Stage Focus: Pre-seed, Seed
Location: Helsinki, Finland (HQ: Gothenburg, Sweden)
Website: nordiccleantechopen.com
Share your Helsinki cleantech pitch and track every VC who opens your pilot data
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Start free 14-day trial6. Neste Ventures
Neste Ventures is the corporate venture arm of refining giant Neste, investing strategically in startups that advance renewable fuels, circular economy, and sustainable supply-chain traceability.
Recent Deals: Circularise €11M 2024 (co-invested), renewable fuel feedstock startups ongoing 2024–2025
LinkedIn: Neste LinkedIn
Sector Focus: Renewable fuels, circular economy, biofuels, sustainable chemistry
Stage Focus: Seed, Series A, Corporate VC
Location: Espoo, Finland
Website: neste.com
7. Fortum Ventures
Fortum Innovation & Venturing backs breakthrough energy startups targeting a carbon-neutral future, with recent deals spanning carbon removal marketplaces and micro-nuclear district heating.
Recent Deals: Puro.earth €11M Series B 2025, Steady Energy €2.1M 2026
LinkedIn: Fortum LinkedIn
Sector Focus: Energy storage, flexibility, carbon removal, nuclear, cleantech
Stage Focus: Seed, Series A, Corporate VC
Location: Espoo, Finland
Website: fortum.com
8. EIT InnoEnergy Finland
EIT InnoEnergy is an EU-backed energy innovation engine whose 200+ portfolio companies raised €4.3B in 2024, with its Finland hub supporting Nordic energy transition startups through grants, expertise, and pan-European investor access.
Recent Deals: Portfolio raised €4.3B across 56 rounds 2024, Geolinks €1.5M carbon capture 2024, 14 new startups added 2024
LinkedIn: EIT InnoEnergy LinkedIn
Sector Focus: Energy transition, carbon capture, energy storage, clean power
Stage Focus: Pre-seed, Seed, EU Grants
Location: Helsinki, Finland (HQ: Eindhoven, Netherlands)
Website: innoenergyfinland.com
9. Cleantech Invest
Cleantech Invest (now trading as Loudspring on Nasdaq First North Helsinki) is a publicly listed Nordic cleantech accelerator and investor focused on energy efficiency and decentralised renewable energy companies across Finland, Sweden, and Germany.
Recent Deals: Swap.com €19M round supported, ResQ Club expansion and acquisition 2024
LinkedIn: Loudspring / Cleantech Invest LinkedIn
Sector Focus: Energy efficiency, resource efficiency, decentralised renewables
Stage Focus: Seed, Growth
Location: Helsinki, Finland
Website: cleantech.fi
Finnish cleantech innovation system
Aalto University produces 40+ cleantech spin-offs per year with Business Finland grants. Aalto cleantech with TU Espoo IP closes Voima Ventures and TESI 5 weeks faster.
VTT Technical Research Centre backs 30+ Finnish cleantech projects per year. VTT collaboration partner closes Business Finland cleantech co-investment 4 weeks faster.
Track your Helsinki cleantech IP and pilot docs via investor relations software. Helsinki cleantech VCs require Business Finland docs before any term sheet discussion.
Finland's national hydrogen strategy commits €2B to green hydrogen by 2030. Finnish cleantech with green hydrogen or Power-to-X closes Neste and EIT InnoEnergy fastest.
Helsinki cleantech deal terms
Helsinki cleantech seed rounds average €1M-€3M with 15-20% dilution in 2026. Finnish cleantech with Business Finland grant closes seed at 20% lower dilution.
Voima and TESI require full IP audit and field pilot report at seed close. Finnish cleantech with clean IP chain and 3-month field pilot closes Helsinki seed fastest.
Review Helsinki cleantech term sheet via due diligence checklist before signing. Finnish cleantech term sheets include Business Finland IP clauses absent from UK SAFEs.
TESI growth rounds average €3M-€8M with 20-25% dilution in Helsinki in 2026. Finnish cleantech with €500K ARR and EU market plan closes at 25% lower dilution.
Finnish cleantech sectors
Finland's bioenergy sector generated €4B in 2025, up 22% from 2024. Helsinki cleantech with Neste or Fortum bioenergy pilot closes corporate VC fastest.
Finnish cleantech SaaS platforms for energy monitoring grew 40% in 2025. Helsinki cleantech SaaS with Fortum or Helen utility client closes Maki fastest.
Track your Helsinki cleantech investor pipeline via pitch deck tracking software. Helsinki cleantech VCs open pilot data and IP docs within 72 hours of data room link.
Finland's circular economy market hit €3B in 2025, up 25% from 2024. Helsinki circular cleantech with UPM or Stora Enso pilot closes TESI fastest.
How to pitch a Helsinki cleantech investor
Lead with Business Finland grant, field pilot, and hardware prototype.
- 1.Secure Business Finland grant before Helsinki cleantech VC outreach.Business Finland closes Helsinki cleantech seed 6 weeks faster.
- 2.Run 3-month field pilot before approaching Voima or TESI.Field pilot converts Helsinki cleantech VCs in 12 weeks.
- 3.Get EIT InnoEnergy or Nordic Cleantech Open affiliation first.Program affiliation closes Helsinki cleantech seed 4 weeks faster.
- 4.Prepare Business Finland grant docs and field pilot validation.Grant docs cut Helsinki cleantech due diligence 3 weeks.
- 5.Track investor opens via Ellty. Follow up on pilot data section views.Helsinki VCs open pilot data before any term sheet offer.
How Ellty helps you land a Helsinki cleantech investor
Ellty is a data room for cleantech founders. Know when Voima or Neste opens your docs.
- 1.Upload deck, pilot data, and Business Finland docs to Ellty.Set NDA-gated access per Helsinki cleantech investor.
- 2.Share trackable links with each Helsinki cleantech VC.Each VC gets a unique link. Ellty logs every open.
- 3.Follow up when VCs open your pilot data and grant sections.See which Helsinki cleantech VCs reviewed your docs today.
Helsinki cleantech investors: common questions
- Cheques run €50K-€10M. Neste and TESI write €500K-€10M for cleantech growth.
- Business Finland grant, field pilot data, and hardware prototype are standard in 2026.
- Seed takes 8-16 weeks. Business Finland accreditation adds 4-6 weeks before VC outreach.
- Bioenergy and energy tech raised most. Green hydrogen and circular economy growing fastest.
- Yes. Finnish ApS and Business Finland grant preferred. EIT InnoEnergy accelerates all VCs.
