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Sunfish Partners

Europe, Mazowieckie, Poland, Warsaw

Description

Sunfish Partners is an early-stage venture capital firm based in Warsaw, Poland, with a dedicated focus on deep tech startups emerging from the Central and Eastern European (CEE) region. Established with a mission to back visionary founders tackling complex challenges through proprietary technology, the firm primarily targets pre-seed and seed-stage companies. Their investment thesis centers on identifying disruptive innovations across various deep tech sectors, including AI, advanced materials, robotics, and biotechnology, recognizing the significant potential within the CEE's burgeoning tech ecosystem.

The firm's investment strategy is characterized by a commitment to providing substantial initial capital alongside strategic support. Sunfish Partners typically deploys first checks ranging from €200,000 to €1,000,000, demonstrating their capacity to lead or co-lead early funding rounds. Beyond the initial investment, they are prepared to offer significant follow-on capital, with the potential to invest up to €3,000,000 in subsequent rounds, supporting their portfolio companies' growth through Series A and beyond. This approach underscores their long-term commitment to the ventures they back, aiming to nurture them from nascent ideas into market-leading enterprises.

Sunfish Partners launched its first fund in 2018, establishing its presence as a key player in the CEE deep tech landscape. Building on the success and experience gained from their initial fund, the firm announced the launch of Fund II in 2022, targeting a substantial €60,000,000. This new fund significantly enhances their capacity to support a larger number of promising startups and make more impactful investments across the region. The team emphasizes a hands-on approach, providing operational guidance, strategic advice, and access to their extensive network of industry experts, mentors, and potential partners, thereby accelerating the development and market penetration of their portfolio companies. Their strategic location in Warsaw positions them at the heart of the CEE innovation hub, allowing them to closely engage with local talent and emerging technologies.

Investor Profile

Sunfish Partners has backed more than 27 startups, with 4 new investments in the last 12 months alone. The firm has led 18 rounds, about 67% of its total and boasts 0 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Pre Seed, Seed rounds (top funding stages).
  • Majority of deals are located in Poland, United Kingdom, United States.
  • Strong thematic focus on Artificial Intelligence (AI), Software, Machine Learning.
  • Led 3 rounds in the past year.
  • Typical check size: $216K – $1.1M.

Stage Focus

  • Pre Seed (56%)
  • Seed (44%)

Country Focus

  • Poland (74%)
  • United Kingdom (15%)
  • United States (7%)
  • Czech Republic (4%)

Industry Focus

  • Artificial Intelligence (Ai)
  • Software
  • Machine Learning
  • Medical Device
  • Health Care
  • Information Technology
  • Medical
  • Pharmaceutical
  • Biotechnology
  • It Infrastructure
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FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does Sunfish Partners frequently co-invest with?

Atmos Ventures
North America, California, United States, Palo Alto
Co-Investments: 2
Possible Ventures
Europe, Bayern, Germany, Munich
Co-Investments: 2
Preface Ventures
North America, New York, United States, New York
Co-Investments: 2
AME Cloud Ventures
North America, California, United States, Palo Alto
Co-Investments: 1
Finch Capital
Europe, Noord-Holland, The Netherlands, Amsterdam
Co-Investments: 2
FundingBox Deep Tech Fund
Europe, Mazowieckie, Poland, Warsaw
Co-Investments: 2
Joyance Partners
North America, California, United States, San Francisco
Co-Investments: 2
APEX Ventures
Europe, Wien, Austria, Vienna
Co-Investments: 2
Tensor Ventures
Europe, Hlavni mesto Praha, Czech Republic, Prague
Co-Investments: 2
Chiratae Ventures
Asia, Karnataka, India, Bangalore
Co-Investments: 2

Which angels does Sunfish Partners often collaborate with?

CS
Europe, Berlin, Germany, Berlin
Shared Deals: 1
PW
Europe, Mazowieckie, Poland, Warsaw
Shared Deals: 1
SG
North America, New York, United States, New York
Shared Deals: 1
KP
Europe, Zug, Switzerland, Zug
Shared Deals: 1
BR
Europe, Mazowieckie, Poland, Warsaw
Shared Deals: 2
MN
North America, Ontario, Canada, Toronto
Shared Deals: 1
PM
Europe, Mazowieckie, Poland, Warsaw
Shared Deals: 1
FQ
Europe, Bayern, Germany, Munich
Shared Deals: 2
SS
Europe, Mazowieckie, Poland, Warsaw
Shared Deals: 1
PK
Europe, Mazowieckie, Poland, Warsaw
Shared Deals: 1

What are some of recent deals done by Sunfish Partners?

Asynchronics

Warsaw, Mazowieckie, Poland

Asynchronics is an open-source platform for high-fidelity digital twins, aimed at accelerating spacecraft system development.

Pre SeedJun 24, 2025
mysite.ai

San Francisco, California, United States

Let an AI Employee lead your business online presence

Artificial Intelligence (AI)
Pre SeedJun 17, 2025
Amount Raised: $2,429,175
DefendEye

Cracow, Malopolskie, Poland

The world's first fully autonomous drone, powered by AI, requires no pilot or setup. Detects humans faster than any human.

Artificial Intelligence (AI)Cloud ComputingComputer VisionHardwareMachine LearningManufacturingMilitaryPublic SafetySecurity
SeedMay 21, 2025
Amount Raised: $1,281,983
Zaitra

Brno, Jihomoravsky kraj, Czech Republic

Zaitra helps in reducing costs in data transmission along with spacecraft onboard and artificial intelligence services.

Artificial Intelligence (AI)Satellite CommunicationSpace Travel
Pre SeedOct 8, 2024
Amount Raised: $1,865,833
1.security

Lodz, Lodzkie, Poland

1.security is an operator of a cybersecurity platform designed to manage the Microsoft environment.

Cyber SecurityInformation ServicesInformation TechnologyInternetSaaSSoftware
Pre SeedFeb 27, 2024
Amount Raised: $500,000
Codejet

San Francisco, California, United States

Design to {code} AI tools for streamlined collaboration

Information TechnologySoftwareWeb DesignWeb Development
Pre SeedJan 30, 2024
Amount Raised: $500,000
Orbital Matter

Warsaw, Mazowieckie, Poland

Orbital Matter is a construction company in space that works on a 3D printing technology to be used directly in orbit and on the moon.

3D PrintingAerospaceHardwareManufacturing
Pre SeedDec 14, 2023
Amount Raised: $1,209,268
Solvemed Limited

Cambridge, Cambridgeshire, United Kingdom

Revolutionizing neurology diagnostics and drug discovery with Artificial Intelligence.

Artificial Intelligence (AI)Machine LearningMedical Device
SeedOct 5, 2023
Amount Raised: $3,899,895
Smarter Diagnostics

Olsztyn, Warminsko-Mazurskie, Poland

Smarter Diagnostics brings innovation for orthopedic injury preventive diagnostics with medical imaging and AI

Artificial Intelligence (AI)Health CareHealth DiagnosticsImage RecognitionMachine LearningMedicalMedical DeviceSoftware
Pre SeedOct 2, 2023
Amount Raised: $720,000
CliniNote

Warsaw, Mazowieckie, Poland

CliniNote is a SaaS B2B player transforming the way clinical Real-World Data is created and used in global healthcare.

Big DataClinical TrialsData MiningElectronic Health Record (EHR)Health CareMedicalNatural Language ProcessingPharmaceuticalPredictive AnalyticsSoftware
SeedSep 29, 2023