Tim Trefren
Cofounder & CEO at Recheck
Lyme, New Hampshire, United States
Summary
👤
Senior🎓
Top SchoolTim Trefren is a serial founder and operator with 15 years of experience building product-led SaaS and verification platforms, currently leading Recheck as Cofounder & CEO to bring transparency to residential solar sales. He previously founded Mixpanel, where he scaled engineering, product, and customer teams while helping the company exceed $100M in ARR and raise significant capital. Based in Lyme, New Hampshire, Tim combines hands-on coding and team-building with early-stage investing focused on climate, food security, and economic development. A Climate Tech Fellow and occasional investor in startups like Second Measure and Saratoga Energy, he looks for opportunities that deliver large-scale social impact while remaining economically viable. Notably, his background blends deep product analytics experience with a growing focus on clean energy verification—an uncommon mix that informs both his startups and investments.
15 years of coding experience
11 years of employment as a software developer
Computer Science, Computer Science at Arizona State UniversityY Combinator
English
Stackoverflow
21reputation
2kreached
1answer
0questions
Github Skills (22)
mixpanel10
analytics-tracking10
sdk10
android10
lists9
analytics9
browser9
client-library9
swift8
javascript-client8
javascript8
objective-c8
ios7
cocoapods7
carthage6
Programming languages (5)
Github contributions (5)
ttrefren/jql-date-utils
May 2016 - Apr 2018
Contributions:2 pushes, 1 branch in 1 year 10 months
mixpanel-platform/mixpanel-mixpanel-3-K3uzZhM
Nov 2015 - Dec 2015
Contributions:12 pushes in 10 days
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