Jason Lemkin

Founder & Managing Director, SaaStr Fund

SaaS-focused seed investor and community builder

Global; prefers founders who visit Bay Area regularly$500K–$4M checks8 notable investments

SeedSeries A

Website LinkedIn 𝕏@jasonlk SaaStr Fund Crunchbase

Enterprise SaaSAIData

Background

Jason Lemkin is the founder and managing director of SaaStr Fund, a $200M+ venture fund focused exclusively on early-stage B2B SaaS companies. He co-founded EchoSign, the web's most popular electronic signature service, growing it to $50M ARR before its acquisition by Adobe Systems, where he served as VP of Web Services. He also co-founded NanoGram Devices Corp and held senior roles at BabyCenter and NeoPhotonics. He founded SaaStr, which has grown into the world's largest community and annual conference for B2B/SaaS founders. The SaaStr Fund invests in 4–5 companies per year at seed and late-seed stages, requiring $10K+ MRR and at least 10 unaffiliated customers. He holds degrees from Harvard University and UC Berkeley.

Investment Thesis

Back exceptional B2B SaaS founders post-initial-traction ($10K+ MRR) as first or very early institutional investor; favor outsider founders with demonstrated product-market fit.