Ilias Hatzis
Entrepreneur · Engineer · Writer

Ilias
Hatzis

Tech entrepreneur with over 30 years of experience building companies from the ground up — across internet search, adtech, digital marketing, marketplaces, crypto, and web3. Founder & CEO of Inkjin. Previously at Google and JWT.

Ilias Hatzis
Techstars Startup Weekend Thessaloniki, December 2025

I have been building internet companies since before most people had heard of the internet. Search engines and adtech in the 90s, digital marketing and marketplaces in the 2000s, crypto and web3 in the 2010s. Today I am building Inkjin, and I am just getting started.

I am a tech entrepreneur with over 30 years of experience building companies from the ground up, including leadership roles at Google and JWT. Since launching my first startup in 1990, my career has spanned internet search, adtech, digital marketing, marketplaces, crypto, and web3.

Early in my career I built two startups in adtech and digital marketing, developing a strong foundation in digital advertising, serving as Board Member and Treasurer of the Interactive Advertising Bureau (IAB Hellas) and as Steering Committee Member and President of the Ermis Digital Awards at EEDE, Greece's most prestigious advertising industry recognition.

Since 2017, I have founded three companies in the crypto and web3 space, led an ICO, and developed deep hands-on expertise in blockchain infrastructure, decentralized systems, and token economies.

One of my crypto startups was recognized with wins at the NBG Business Seeds Startup Competition and the John & Mary Pappajohn Business Plan Competition, as well as a Finalist distinction at MIT GSW.

Beyond building my own companies, I am deeply committed to supporting the startup ecosystem. I serve as a Fellow at the Digital Euro Association and as a Lead Mentor at Techstars Web3 and Techstars Sustainability Paris, and have mentored founders at MassChallenge and MITEF. At Demium, I managed a startup accelerator, worked with entrepreneurs from idea to MVP, and invested in the most promising startups we accelerated.

Based in Athens, I have been writing about technology and startups for over 20 years, including a weekly crypto column for Daily Fintech, and now publishing weekly on Substack.

I am now building Inkjin — a tattoo marketplace turning fragmented online inspiration into seamless, booked sessions. Inkjin was accepted into Accelerate Greece in Toronto and Eurobank's EGG accelerator, and is currently active in Greece and the UK with the goal of becoming the infrastructure layer for the tattoo industry worldwide.

Find me online

The Leap of Faith

Unfiltered thoughts on startups, technology, and building things. Writing since 2004.

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If you're a founder and need a sounding board, someone to pressure-test your idea, or just a conversation with someone who's built through the hard parts — send me a message. I'm also happy to speak at startup events, mentor at accelerators, or connect over what you're building.