Tim Trefren

Tim Trefren

Y Combinator Logo Batch: S09

Achievements

  • Co-founded Mixpanel in 2009 after Y Combinator S09, building it into a leading product analytics company
  • Raised over $277 million and achieved more than $100 million in annual revenue with Mixpanel
  • Founded Recheck in 2023 to improve transparency and accountability in residential solar sales
  • Served as a Climate Tech Fellow at On Deck, actively involved in climate innovation
  • Invests in early-stage startups focused on climate change, food security, and economic development
  • Holds a CS degree from Arizona State University

Ever heard of Tim Trefren

Here’s why you should know about Tim Trefren-this guy’s the real deal in the startup world. He’s a tech geek turned entrepreneur who’s been crushing it since way back. So, Tim jumped into the scene with Mixpanel, which he co-founded in 2009 right after doing YC’s S09 batch. That’s a big deal – YC is basically the startup bootcamp, and Mixpanel quickly became one of the biggest names in product analytics. I mean, they raised over $277 million and hit more than $100 million in annual revenue. That’s no small feat – it shows he’s got the hustle, vision, and the skills to build something that actually sticks and scales.

What’s dope about Tim is that he didn’t just stop at one success. After Mixpanel, he’s all about tackling the future trend – now he’s the co-founder and CEO of Recheck. This new gig? It’s all about transparency and accountability in residential solar sales. Basically, he’s jumping into climate tech, which tells you he cares about making a real impact, not just chasing the next quick buck. He’s also a Climate Tech Fellow at On Deck, so he’s plugged into the future of tech and climate action.

And get this – he’s not just building companies, he’s into investing in startups too, especially those fighting climate change, food security, and economic stuff. That shows he’s got a bigger vision, not just for his own success but for pushing the world forward.

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He’s got a CS degree from Arizona State, which means he’s legit tech-smart, but what really stands out is his drive. The guy’s been in the trenches, building from scratch, raising huge money, and now focusing on things that matter – like clean energy and transparency. Based in Lyme, NH, he’s kinda the classic startup guy who’s all about big ideas but grounded enough to be productive.

Long story short, Tim’s the guy who’s been there, done that, and keeps pushing into new frontiers. He’s proof that if you’re passionate, smart, and not afraid to jump into the deep end, you can build stuff that changes the game. That’s why he’s a major player – not just for what he’s done, but for what he’s gonna do next.

Founder ID: 100450

Industries

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