David Langer

Meet your new inspiration David Langer, dude’s the real deal in the startup world. This guy’s been crushing it from all angles. He’s a two-time tech entrepreneur, an angel investor with a killer track record, and now he’s running Lionheart Ventures, a global seed fund that’s super focused on tackling civilizational risks, yeah, that big stuff no one else wants to touch.

So, his process? It’s wild. He kicked things off by co-founding GroupSpaces, a SaaS platform for clubs that hosted over 5 million memberships across 100+ countries. This was back in the UK, backed by big names like Index Ventures and Lowercase Capital. Basically, he was already proving he could build something expandable and legit.

Then, he jumped into Zesty, a healthy corporate catering startup that he founded and served as CEO. Zesty was the real deal, Y Combinator backed it, raised over $20M from top investors, and grew from zero to $10 million GMV in just 13 months. They served 7 million meals, and in 2018, Square bought them. That’s some serious startup success, showing he can build, grow, and exit big.

But here’s what’s cool, he didn’t stop there. Instead, he started pouring into others. He became an active angel investor, putting money into more than 20 startups, with a return of over 10x on his investments. Some of the key names he backed? Anthropic, Encultured AI, Space Perspective, all pushing the tech envelope. Dude’s got a nose for what’s next.

And his background? It’s solid as hell. Before all this, he worked at J.P. Morgan, McKinsey, and Lehman Brothers, so he’s got the finance and consulting creds in his back pocket, which probably helped him guide both startup chaos and big corp worlds.

What’s more, he’s big on mental health and founder wellness, practices Vipassana meditation, is a certified yoga teacher, and really cares about the human side of entrepreneurship. That’s rare, especially when you’re operating at his level.

His education? MA in Mathematics from Oxford, so he’s got that analytical mind, but he’s all about the hustle and the gut. His story is about combining smarts with grit, building stuff that matters, and then helping others do the same.

Bottom line? David Langer is this perfect blend of a builder, thinker, and supporter, someone who’s not just in it for the fame or the cash, but to make a dent on big, real problems while lifting up the next wave of founders. No cap, this guy’s a force of nature in the startup system.