Eric Ries

Ries sources largely through his network of authors, speakers, and operators in the lean startup and enterprise technology communities. Founders often come to him through referrals from past portfolio companies or co-investors who value his public methodology. He does not run a formal scouting program or publish open calls for submissions.

Ries invests his own capital directly, not through a blind pool raised from limited partners. He does not operate a family office with a staff of analysts or a multi-family wealth management platform. This makes his investment pace and check sizes opaque but also unconstrained by fund lifecycle pressure.

His primary focus is technology, particularly enterprise software and AI/ML. He has made select investments in space technology and media but does not pursue consumer packaged goods, hard industrial assets, or life sciences. His non-software deals are rare and typically connected to a personal interest or long-standing founder relationship.

The Long-Term Stock Exchange (LTSE) is a US national securities exchange co-founded by Ries to support companies that want to prioritize long-term governance over quarterly earnings pressure. It operates as a separate entity from his investment activity, though portfolio companies occasionally explore listing on the exchange as part of an alignment with his broader philosophy of sustainable growth.

Ries does not disclose a standard check size, but his participation is typically at the seed or pre-seed stage, often alongside other experienced angel investors. Based on round structures common to his portfolio companies, his commitments are likely in the low six figures, though no public filing or verified source confirms a precise range.