Sunfish Partners
Venture capitalBerlin · Pre-Seed–Seed · 10 people tracked
Investment thesis
Sunfish Partners is an early-stage venture capital firm focused on space and defense startups originating in Eastern Europe (CEE). It writes pre-seed tickets of roughly €150k-€300k, backing both hardware and software companies. Its stated mission is to help secure Europe's technological and strategic autonomy. The firm has been active for seven years, made 25 investments, and reports 350+ jobs created at its portfolio companies.
Source: firm website, verified Aug 3, 2026.
Team · 10 people
from the firm's website
What they invest in
from 21 of 30 portfolio companiesAI & Machine Learning ×9Deep Tech ×6Hardware ×5Defense Tech ×4SaaS ×4Space Tech ×4Developer Tools ×3Healthtech ×3
HQs:Poland×5Switzerland×1Czechia×1Estonia×1United States×1
Investments · 30 tracked
founders shown can be your intro path1Security maps every identity in a Microsoft 365 tenant — users, apps, AI agents, and devices — into a live graph showing access permissions, activity, and paths to data, and can remediate risky access.
CybersecurityEnterprise SoftwareSaaS
Co-investorsSunfish Partners
Aether Biomedical develops the Zeus multi-articulating bionic hand and an ecosystem of prosthetic devices, control systems, and connected digital tools.
HardwareHealthtechMedical Devices
Co-investorsChiratae VenturesJ2 VenturesJoyance PartnersStory VenturesSunfish Partners
Asynchronics builds NeXosim, a Rust-based discrete-event simulation engine for creating digital twins and running full systems virtually.
Deep TechDeveloper ToolsSpace Tech
Co-investorsCreative Destruction Lab (CDL)Heartfelt CapitalHEC Paris Incubator
C2GRID builds a geospatial awareness and decision-support platform that converts video, including drone footage, into near real-time 3D operational environments with multi-sensor data fusion and automated threat detection.
AI & Machine LearningDeep TechDefense Tech
Vladimir Kuts(CEO)Saamuel Stepanov(Chief Marketing Officer)
Co-investorsBSV Ventures
DefendEye builds a launch-tube drone system with a low-light camera and onboard AI that detects humans and streams real-time video to an observation center within seconds of a triggered launch.
AI & Machine LearningDefense TechRoboticsKraków, PL
Co-investorsNovaCapital
ENS Dynamics appears to present a profile of Major General (ret) Claude Meier, a former Swiss Air Force fighter pilot and senior military officer with experience in defense and security policy.
Defense TechPully, CH
Co-investorsFundingBox Deep Tech Fund
Space & defense, cyber security
Liftero develops green chemical propulsion systems for space missions, delivering configurable high-thrust engines optimized for rapid orbital maneuvers, in-orbit servicing, and constellation deployment.
Deep TechHardwareSpace Tech
Co-investorsbValue Venture Capital
Dover, US
Pawel Wlodarczyk-Pruszynski(Executive Officer, Director)Piotr Byrski(Executive Officer, Director)
BoardDominik Andrzejczuk(Director)
Co-investorsExpeditions
Orbital Matter designs and builds large rigid structures directly in orbit using its Printer Assisted Deployment System (PADS), which constructs continuous booms from 10m to 100m+ without hinges or folding mechanisms.
Advanced ManufacturingDeep TechHardwareSpace Tech
PerfOps runs a big data platform that ingests billions of performance metrics from locations worldwide and streams them in real time to dashboards or customer endpoints, powering DNS, cloud, and CDN benchmarking services such as DNSPerf, CloudPerf, and CDNPerf.
Cloud ComputingData & InfrastructureDeveloper Tools
Co-investorsElevate Innovation PartnersFinch Capital
Pergamin generates complete HR document packages from employee data, collects qualified electronic signatures (QES/eIDAS), and stores them in an audit-ready archive compliant with Polish labor law.
HR TechLegalTechSaaS
Co-investorsFundingBox Deep Tech Fund
RANDAEMON develops post-quantum cryptography solutions, including AIRBARN™ stream ciphers and quantum random number generators (QRNGs), for securing internet-connected devices, cloud operations, and IoT systems against quantum computing threats.
CybersecurityIoTQuantum ComputingWarsaw, PL
Janusz Borodziński(CEO)inKrzysztof Appelt(VP Business Development)inJan Tatarkiewicz(CTO)
Scramjet Cloud Platform is a distributed data processing platform for deploying and running data integration programs across multiple locations and environments with minimal configuration.
Cloud ComputingData & InfrastructureDeveloper Tools
Co-investorsSpeedUp Venture Capital Group
Humanoid robots, space & defense
Space & defense, signals-intelligence, drones
Sky Spy develops signals intelligence (SIGINT) technology for real-time RF tracking in contested electromagnetic environments on the battlefield.
Deep TechDefense TechHardware
Co-investorsExpeditions
Smarter Diagnostics provides AI-powered analysis of multimodal health and sports data—including biomechanics, imaging, genetics, and wearable metrics—to enable data-driven decision-making for injury prevention, performance enhancement, and personalized athlete development.
AI & Machine LearningHealthtechSports Tech
Co-investorsAligo Venture Capital
Solvemed develops a smartphone-based FDA-cleared medical device for pupil size and reactivity testing in neurological exams, eliminating the need for separate hardware.
AI & Machine LearningHealthtechMedical Devices
Co-investorsCambridge Angels groupTechniVentures
Portfolio news
latest coverage across their companiesAether · markets.businessinsider.com · Jun 18, 2026
Frequently asked questions
- How many investments has Sunfish Partners made?
- Sunfish Partners has 18 tracked investments.
- What stage does Sunfish Partners invest at?
- Sunfish Partners invests at the Pre-Seed, Seed stages.
- What is Sunfish Partners's typical check size?
- Sunfish Partners typically writes checks of $165K – $330K.
- What sectors does Sunfish Partners focus on?
- Sunfish Partners focuses on AI & Machine Learning, Cybersecurity, Deep Tech, Defense Tech, Hardware, Robotics, Space Tech.
- Where is Sunfish Partners located?
- Sunfish Partners is headquartered in Berlin, DE.
- Does Sunfish Partners lead rounds?
- Sunfish Partners typically participates in rounds rather than leading them.
- Who does Sunfish Partners co-invest with?
- Sunfish Partners most often shares deals with bValue Venture Capital, FundingBox Deep Tech Fund, SpeedUp Venture Capital Group, among 3 tracked co-investors.
Images
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