Top 15 Venture Capital Firms Backing Athens Startups in 2025
Athens is quickly emerging as one of Southern Europe's most promising startup ecosystems. In 2025, founders in Greece are securing funding for everything from fintech to deeptech, SaaS, and biotech.
With a growing community of entrepreneurs and access to regional markets, venture capital firms in Athens are playing a pivotal role in turning local startups into global successes.
This guide highlights the top 15 VC firms in Athens that are driving innovation across the Greek and broader European tech ecosystem.
Quick list of top venture capital firms in Athens
- Marathon Venture Capital – Early-stage investor backing ambitious Greek founders
- VentureFriends – Consumer and B2B SaaS-focused VC with pan-European reach
- Metavallon VC – Seed-stage firm supporting disruptive technology startups
- Velocity.Partners – Focused on pre-seed and seed-stage investments in digital tech
- Uni.Fund – Investing in tech-transfer, research-based, and scalable startups
- Big Pi Ventures – Deep tech and IP-driven startups across sectors
- Starttech Ventures – Studio model + funding for SaaS and tech companies
- Genesis Ventures – Focuses on health, biotech, and life sciences startups
- L-Stone Capital – Family-backed VC focused on scalable, sustainable businesses
- Elikonos Capital – Growth capital and private equity investments in Greece
- Phaistos Investment Fund (5G Ventures) – Investing in 5G and related tech startups
- Odyssey Venture Partners – B2B software and infrastructure-focused VC
- A35 Capital Partners – Fund investing in early-stage companies in Greece
- EOS Capital Partners – Private equity and growth investing in Greek SMEs
- Openfund – One of the first VCs in Greece backing tech-driven startups
How to find the right VC in Athens
Not every venture capital firm in Athens is the right match for every founder. Here's how to narrow it down:
- Stage alignment – Know whether the fund backs pre-seed, seed, or growth-stage startups
- Sector expertise – Look for investors with experience in your industry
- Network value – Top firms bring not just money, but market access
- Fund size – Bigger funds typically lead later-stage rounds
- Geographic reach – Many Athens VCs invest across Southern and Eastern Europe
Explore more investors on the Papermark Investor Database — filtered by stage, sector, and location.
How to send your pitch deck to venture capital firms in Athens
To make a great impression with VCs in Athens, go beyond static PDFs. Use Papermark to send a trackable deck link that gets results.
Tips for pitch success:
- Personalize each deck intro for the Athens VC's portfolio and thesis
- Keep your pitch to 10–15 slides focused on traction, product, and market
- Show strong founding team and local expertise
- Mention your EU expansion potential
- Use smart tracking to follow up at the right time
Why use a pitch deck link instead of attachments?
- Get notified when an accelerator team opens your deck
- Track how long they were on each page of your deck
- Capture emails of those who viewed your deck
- Protect your IP using watermark, screenshot protection and other link permissions
- Securely send data room with multiple documents
Table
| Accelerator | Location | Investment Size | Program Length | Focus Areas | Success Rate |
|---|---|---|---|---|---|
| Marathon Venture Capital | Athens, Greece | €0.5 M – €2 M | Long‑term | Greek tech founders | — |
| VentureFriends | Athens, Greece | €0.5 M – €3 M | Long‑term | Consumer, B2B SaaS | — |
| Metavallon VC | Athens, Greece | €100 K – €1 M | Long‑term | Disruptive / Deep‑tech | — |
| Velocity.Partners | Athens, Greece | €200 K – €1.5 M | Long‑term | Pre‑seed digital tech | — |
| Uni.Fund | Athens, Greece | €250 K – €1.5 M | Long‑term | Tech‑transfer, Research spin‑outs | — |
| Big Pi Ventures | Athens, Greece | €500 K – €3 M | Long‑term | Deep‑tech, IP‑driven | — |
| Starttech Ventures | Athens, Greece | €50 K – €500 K | Studio + follow‑on | SaaS, Studio model | — |
| Genesis Ventures | Athens, Greece | €250 K – €2 M | Long‑term | Health, Biotech, Life‑science | — |
| L‑Stone Capital | Athens, Greece | €0.3 M – €3 M | Long‑term | Scalable, Sustainable businesses | — |
| Elikonos Capital | Athens, Greece | €2 M – €10 M | Long‑term | Growth capital, PE | — |
| Phaistos Investment Fund (5G) | Athens, Greece | €0.5 M – €5 M | Long‑term | 5G & related tech | — |
| Odyssey Venture Partners | Athens, Greece | €0.5 M – €4 M | Long‑term | B2B software, Infrastructure | — |
| A35 Capital Partners | Athens, Greece | €100 K – €1 M | Long‑term | Early‑stage Greek tech | — |
| EOS Capital Partners | Athens, Greece | €3 M – €15 M | Long‑term | Growth PE, Greek SMEs | — |
| Openfund | Athens, Greece | €50 K – €500 K | Long‑term | Tech‑driven seed | — |
1. Marathon Venture Capital
Early‑stage investor backing ambitious Greek founders.
- Focus: Greek tech founders, B2B / B2C software
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €0.5 M – €2 M seed/Series A
- Equity free: No
- Website: Marathon VC
2. VentureFriends
Consumer‑ and B2B‑SaaS‑focused VC with pan‑European reach.
- Focus: Consumer internet, B2B SaaS, Marketplaces
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €0.5 M – €3 M seed/Series A
- Equity free: No
- Website: VentureFriends
3. Metavallon VC
Seed‑stage firm supporting disruptive technology startups.
- Focus: Deep‑tech, AI, IoT, Robotics
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €100 K – €1 M seed
- Equity free: No
- Website: Metavallon VC
4. Velocity.Partners
Focused on pre‑seed and seed investments in digital tech.
- Focus: Pre‑seed digital tech, SaaS, Marketplaces
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €200 K – €1.5 M pre‑seed/seed
- Equity free: No
- Website: Velocity.Partners
5. Uni.Fund
Investing in tech‑transfer, research‑based, and scalable startups.
- Focus: Tech‑transfer, University spin‑outs, SaaS
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €250 K – €1.5 M seed/Series A
- Equity free: No
- Website: Uni.Fund
6. Big Pi Ventures
Backing deep‑tech and IP‑driven startups across sectors.
- Focus: Deep‑tech, IP‑driven hardware & software
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €500 K – €3 M seed/Series A
- Equity free: No
- Website: Big Pi Ventures
7. Starttech Ventures
Studio model + funding for SaaS and tech companies.
- Focus: SaaS studio, Product‑led growth
- Location: Athens, Greece
- Program length: Studio programme (continuous) + follow‑on
- Investment: €50 K – €500 K pre‑seed/seed
- Equity free: No
- Website: Starttech Ventures
8. Genesis Ventures
Focuses on health, biotech, and life‑science startups.
- Focus: Health‑tech, Biotech, Life‑science
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €250 K – €2 M seed/Series A
- Equity free: No
- Website: Genesis Ventures
9. L‑Stone Capital
Family‑backed VC focused on scalable, sustainable businesses.
- Focus: Sustainability, Scalable Greek companies
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €0.3 M – €3 M seed/Series A
- Equity free: No
- Website: L‑Stone Capital
10. Elikonos Capital
Growth capital and private‑equity investments in Greece.
- Focus: Growth capital, PE, Late‑stage Greek firms
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €2 M – €10 M Series B+ / Growth
- Equity free: No
- Website: Elikonos Capital
11. Phaistos Investment Fund (5G Ventures)
Investing in 5G and related tech startups.
- Focus: 5G, Edge computing, IoT
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €0.5 M – €5 M seed/Series A
- Equity free: No
- Website: Phaistos Fund
12. Odyssey Venture Partners
B2B software and infrastructure‑focused VC.
- Focus: B2B software, Infrastructure, Cloud
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €0.5 M – €4 M seed/Series A
- Equity free: No
- Website: Odyssey VP
13. A35 Capital Partners
Fund investing in early‑stage companies in Greece.
- Focus: Early‑stage Greek tech, SaaS
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €100 K – €1 M pre‑seed/seed
- Equity free: No
- Website: A35 Capital Partners
14. EOS Capital Partners
Private‑equity and growth investing in Greek SMEs.
- Focus: Growth PE, Greek SMEs, Diversified sectors
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €3 M – €15 M growth/buy‑out
- Equity free: No
- Website: EOS Capital Partners
15. Openfund
One of the first VCs in Greece backing tech‑driven startups.
- Focus: Tech‑driven, SaaS, Marketplaces
- Location: Athens, Greece
- Program length: Long‑term partnership
- Investment: €50 K – €500 K seed
- Equity free: No
Prepare for Demo Day: what Athens investors expect
Demo Day is your moment to turn interest into investment — especially in a rising ecosystem like Athens. Local VCs want to see bold ideas backed by real execution.
Here's how to make your pitch resonate:
- Show strong team ties to Greece or Southeastern Europe
- Prove traction or validation in your local market
- Highlight scalability into the EU
- Include a clear financial model
- Use Papermark to share, track, and refine your deck
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Final Thoughts
Athens may be an ancient city, but its venture capital scene is building the future. With a growing number of bold, founder-focused funds, VCs in Athens are backing everything from biotech to fintech. Use Papermark to share a smarter, trackable deck — and connect with the right investors to accelerate your journey.