Jason Lemkin
Founder, Managing Director @ SaaStr Fund
Palo Alto, United States
Jason Lemkin is a seed investor at SaaStr Fund in Palo Alto focused on Software and SaaS. Jason M. Lemkin runs SaaStr, the world's largest community for B2B/SaaS founders, and is the managing director of SaaStr Fund, a $90m venture capital firm focused on early-stage enterprise investments.Prior to that, Lemkin was the vice president of and the president of Lemkin has studied at Harvard University and the University of California, Berkeley.
- Total investments:
- 32
- Last investment:
- Lead investor:
- 34%
Last updated:
For AI agents: llms.txt
Industries Jason Lemkin invests in
Stages Jason Lemkin invests in
Countries Jason Lemkin invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $1.8M–$11M
- Series A
- $9M–$15M
- Series B
- $25M–$33M
Investment Focus
Industry
- Software 9 (28%)
- SaaS 6 (19%)
- Developer APIs 4 (13%)
- Information Technology 3 (9%)
- CRM 2 (6%)
Stage
- Seed 12 (38%)
- Series A 11 (34%)
- Series B 4 (13%)
- Series C 2 (6%)
- Pre-Seed 1 (3%)
Country
- United States 17 (53%)
- Norway 2 (6%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Codebases are growing faster than ever, at a rate humans can’t keep up with. Tolmo deploys fleets of AI security agents on a live production knowledge graph that connects data from cloud services, containers, databases, and third-party providers (Observability, Security, etc.). Tolmo agents triage, verify impact, and remediate security issuesautonomously, escalating to humans only when truly necessary. | $22M / Seed / Jun 18, 2026 | ||
| The phone sales platform for commerce. Consio enables merchants to close more sales and engage with their customers profitably on the phone. | $3.3M / Seed / Sep 09, 2025 | ||
| Owner provides a suite of tools designed to assist local restaurant owners in enhancing their sales and online visibility. The platform features solutions like mobile ordering and customer rewards, which aim to improve customer engagement. Additionally, Owner offers a free website grading tool that helps restaurants evaluate their online presenceand identify areas for improvement. These resources empower restaurant owners to optimize their marketing strategies and connect more effectively with their customers. By focusing on practical solutions, Owner supports the growth and development of local dining establishments. | $120M / Series C / May 13, 2025 | ||
| Tildei is on a mission to change the way marketing happens by enabling brands to hold real conversations in a radically simple way. We believe the future of marketing is conversational, and we are building the next generation platform to support enterprise brands to have meaningful conversations with their customers, at scale.Our platform allowsenterprise brands to reach customers where they already are and conduct meaningful, AI-powered conversations to enable on-brand yet personalized conversations with all the guardrails. | $6M / Seed / Oct 08, 2024 | ||
| Opus Clip is a software company that provides generative AI video editing tools. | $30M / Series A / Aug 29, 2024 | ||
| Gorgias is a one-of-a-kind customer service platform specifically designed for ecommerce businesses to deliver effortless customer service at every stage of growth. With cutting-edge automation and AI capabilities, Gorgias revolutionizes how online stores interact with their customers by providing efficient and personalized support across email,voice, SMS, live chat, and social media channels.Founded in 2015, Gorgias began as a two-person team and has grown to more than 250 employees and eight offices in San Francisco, New York, Charlotte, Toronto, Buenos Aires, Paris, Lisbon, and Sydney. As a certified B Corporation, Gorgias is proud to be a leader in sustainable and equitable workplace practices.Today, Gorgias serves 12,000+ merchants in the ecommerce space, including Steve Madden, Glossier, BruMate, and TUSHY. | $29M / Series C / May 14, 2024 | ||
| Owner provides a suite of tools designed to assist local restaurant owners in enhancing their sales and online visibility. The platform features solutions like mobile ordering and customer rewards, which aim to improve customer engagement. Additionally, Owner offers a free website grading tool that helps restaurants evaluate their online presenceand identify areas for improvement. These resources empower restaurant owners to optimize their marketing strategies and connect more effectively with their customers. By focusing on practical solutions, Owner supports the growth and development of local dining establishments. | $33M / Series B / Jan 02, 2024 | ||
| The Greatest GTM Engine That’s Ever Existed. Access 500+ Influential Connectors. Pay to Unlock Direct Introductions to Your Targets. | $1.2M / Pre-Seed / Nov 01, 2022 | ||
| Gorgias is a one-of-a-kind customer service platform specifically designed for ecommerce businesses to deliver effortless customer service at every stage of growth. With cutting-edge automation and AI capabilities, Gorgias revolutionizes how online stores interact with their customers by providing efficient and personalized support across email,voice, SMS, live chat, and social media channels.Founded in 2015, Gorgias began as a two-person team and has grown to more than 250 employees and eight offices in San Francisco, New York, Charlotte, Toronto, Buenos Aires, Paris, Lisbon, and Sydney. As a certified B Corporation, Gorgias is proud to be a leader in sustainable and equitable workplace practices.Today, Gorgias serves 12,000+ merchants in the ecommerce space, including Steve Madden, Glossier, BruMate, and TUSHY. | $30M / Series C / Aug 15, 2022 | ||
| Owner.com powers direct online ordering for restaurants through their website. The company was founded in 2020 and is headquartered in Menlo Park, California, United States. | $15M / Series A / Mar 03, 2022 | ||
| See all 32 investments → | |||
Co-Investors
About SaaStr Fund
The SaaStr Fund is a $70m venture fund that focuses on early-ish stage investments exclusively in SaaS/enterprise/B2B start-ups. They look to invest typically once you have at least 10 Unaffiliated Customers, and we invest from $500k to $4m (occasionally a little more or less), depending on stage.
SaaStr Fund Contacts
| Name | Phone | Socials | |
|---|---|---|---|
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Jason Lemkin
Founder, Managing Director
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FAQ
What does Jason Lemkin invest in?
Jason Lemkin invests primarily in Software, SaaS and Developer APIs startups, most often at Seed and Series A stage. Most of the 32 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Jason Lemkin's check size?
Jason Lemkin typically joins rounds of $1.8M–$11M at Seed, $9M–$15M at Series A and $25M–$33M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Jason Lemkin participates in.
How do I contact Jason Lemkin?
Public channels for Jason Lemkin include LinkedIn and X (Twitter). For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Jason Lemkin last invest?
The most recent investment recorded for Jason Lemkin closed in Jun 2026. Shizune tracks 32 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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