Athens, Greece · Venture Capital Big Pi Ventures was founded in 2018 by Marco Veremis, Alex Eleftheriadis, and Aristos Doxiadis, all seasoned entrepreneurs with exits to Splunk, Meta/Facebook, and global PE. The firm manages approximately €250M in AUM across an early-stage fund (Big Pi II, €50M, 2023) and a growth fund (€130M first close, targeting €200M). It follows a tech-first investment thesis focused on AI, deep tech, biotech, and IP-heavy companies built by founders with a Greek nexus — whether based in Greece or part of the global diaspora. Notable portfolio companies include TileDB, Numan, and Accusonus (acquired by Meta).
Venture Capital Seed to Growth AIDeep TechBiotechSaaSCybersecurity
Athens, Greece · Venture Capital Marathon Venture Capital was founded in 2017 by George Tziralis and Panos Papadopoulos (co-founder of BugSense, acquired by Splunk) in Athens to back ambitious Greek and diaspora founders building global technology companies. Fund I reached €32M and Fund II expanded to €70M; Fund III closed at €75M in May 2025 (with €20M from EIF), bringing total AUM to approximately €175M. The fund leads seed rounds of €500K–€1M in sectors including cybersecurity, AI, defense tech, robotics, and energy. Notable portfolio companies include Hack The Box (cybersecurity training, $55M Series B led by Carlyle) and Augmenta (precision agriculture robotics, acquired by CNH Industrial for $110M).
Venture Capital Seed to Series A CybersecurityAIDefense TechRoboticsEnergy
Athens, Greece · Venture Capital Early-stage VC fund (EUR 50M+ AUM) investing pre-seed to seed+ (EUR 200K-1.5M) in tech startups with strong Greek ties across AI, deep tech, fintech, healthtech and maritime. Portfolio includes Useberry and FerryHopper.
Venture Capital Venture CapitalDeep TechAI
Athens, Greece · Venture Capital Uni.Fund was founded in 2018 in Athens by Katerina Pramatari (Professor at Athens University of Economics and Business), Panos Lioulias, Sotiris Papantonopoulos, and Stelios Eliakis, with backing from the EquiFund programme. Fund I deployed €30M into 23 pre-seed and seed companies commercialising research from universities and research institutions across Greece and Europe. Uni.Fund II launched in 2023 with a €50M target, extending the same thesis to spin-offs and deep-tech startups at pre-seed through early Series A. Focus sectors include IoT, fintech, healthcare, robotics, and SaaS.
Venture Capital Pre-Seed to Series A Deep TechIoTFintechHealthcareSaaSRobotics
Athens, Greece · Venture Capital Velocity.Partners was founded in 2017 in Athens, growing out of the Found.ation startup ecosystem, and is supported by the EquiFund programme and the EU Operational Programme "Competitiveness, Entrepreneurship & Innovation". The fund is sector-agnostic but has particular depth in Maritime-tech, MedTech, FinTech, and Travel-tech — verticals where Greek founders hold a structural edge. It invests at pre-seed and seed stage with initial tickets typically up to €500K, then follows on into later rounds. The team combines operators, founders, and investors with hands-on industry experience.
Venture Capital Pre-Seed to Seed Maritime TechMedTechFintechTravel TechSaaS
Athens, Greece · Venture Capital VentureFriends was founded in 2016 by serial entrepreneurs Apostolos Apostolakis and George Dimopoulos in Athens to back early-stage scalable startups across Europe and MENA. The firm has raised three funds — VF1 (€20M, 2016), VF2 (€50M, 2018), and VF3 (€100M, 2021) — totalling €170M in AUM. It focuses on pre-seed through Series A investments of €330K–€2.8M in FinTech, PropTech, Marketplaces, TravelTech, and SaaS. With 83 portfolio companies, the firm has produced 2 unicorns, 1 IPO, and 10 acquisitions, with Blueground among its flagship investments.
Venture Capital Pre-Seed to Series A FintechPropTechMarketplaceTravel TechSaaS