# Michael R. Stone > Michael R. Stone is a pre-seed investor at PowerPlan (San Francisco) backing B2B and SaaS. See 1 investments, check sizes, portfolio. Updated Aug 2026. - Type: Angel Investor - Fund: [PowerPlan](https://shizune.co/investors/profile/powerplan) - Location: San Francisco, United States - Total investments: 1 - Last investment: Aug 2015 - Lead investor: 0% - Last updated: Aug 2026 Michael R. Stone is a pre-seed investor at PowerPlan in San Francisco focused on B2B and SaaS. Mr. Stone is a Senior Advisor to TPG. He is the Founder and Managing Member of Freestyle Capital, a diversified investment firm. He is Founder and retired Chairman of J.H. Whitney Investment Management, LLC, a hedge fund business, and is retired Senior Partner and past President of J.H. Whitney & Co., a diversified manager of private equity,alternative investment assets, and the country’s first venture capital firm. Mr. Stone founded all of Whitney’s hedge fund activities. He joined J.H. Whitney & Co. in 1989 and retired in 2009. Prior to that, he was a management consultant with Bain & Company.Mike is a member of the San Diego Chapter of WPO and is on the Boards of The Rady School of Business at UCSD, PowerPlan Inc., STX Filmworks, and The Michael and Karen Stone Family Foundation, Inc. He is on the Board of Advisors for the Norman B. Leventhal Map Center at the Boston Public Library, and a member of the Big Brothers Big Sisters of San Diego County President’s Circle. The Michael and Karen Stone Family Foundation is active in poverty related children’s causes, principally in Africa and South America.He attended Duke University and Harvard Business Sch ## Investment focus ### Industry | Industry | Investments | Share | | --- | --- | --- | | B2B | 1 | 100% | | SaaS | 1 | 100% | | Software | 1 | 100% | | Education | 1 | 100% | | Vocational Education | 1 | 100% | ## Investments | Company | Description | Amount | Stage | Date | Website | | --- | --- | --- | --- | --- | --- | | CourseKey | CourseKey is a SaaS platform for vocational education providers that boosts revenue by improving student retention and graduation rates, helps maintain regulatory compliance, and streamlines processes. | $700K | Pre-Seed | Aug 15, 2015 | | 1 of 1 investments shown. ## About PowerPlan VC Fund 1 contacts available at PowerPlan. | Name | Title | Profile | | --- | --- | --- | | Michael R. Stone | Board Director | https://shizune.co/investors/profile/michael-r-stone | ## Similar investors ### Similar stage - [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund - [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund - [Everywhere Ventures](https://shizune.co/investors/profile/everywhere-ventures) — VC Fund ## FAQ ### What does Michael R. Stone invest in? Michael R. Stone invests primarily in B2B, SaaS and Software startups, most often at Pre-Seed stage. Most of the 1 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio. ### When did Michael R. Stone last invest? The most recent investment recorded for Michael R. Stone closed in Aug 2015. Shizune tracks 1 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. # About Shizune Shizune.co is an investor database. Core features: - 48,091 startup investors (angels, VCs, accelerators, and others) - Email, phone, LinkedIn (for intros), socials, and other contact data - Updated daily from public funding news - CSV and Excel export The User can access the full database FOR FREE after signing up: shizune.co