# Rex Northen

> Rex Northen is a startup investor at Cleantech Open (Redwood City). See 0 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Cleantech Open](https://shizune.co/investors/profile/cleantech-open)
- Location: Redwood City, United States
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/rexnorthen

Rex Northen is an entrepreneur with a long history of building and managing companies and successful teams. He has product development, management and technical expertise having founded and served as CEO with technology companies both in Europe and the United States.His background includes experience in the design, development and implementationof business automation systems as well as sales, marketing, online marketing, and consulting. Rex has worked with many hundreds of companies including a diverse range of startups and global corporations.In 2007-2008 volunteered for the California Cleantech Open as Chair of the Mentors and Angel Investor programs and an active member of the fundraising team.

## Contacts

5 contacts available for Rex Northen: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/rex-northen?utm_source=investor_profile

## About Cleantech Open

VC Fund · Palo Alto, United States

The Cleantech Open is a non-profit organization that runs an accelerator for cleantech startups. It provides infrastructure and processes to develop and motivate entrepreneurs and early-stage companies creating clean and environmentally-sustainable technologies. The company offers support, education, resources, and mentoring services to helpentrepreneurs gain access to potential customers and funding sources, high profile events, and press and publicity.

5 contacts available at Cleantech Open.

| Name | Title | Profile |
| --- | --- | --- |
| Rex Northen | Senior Trainer | — |
| Andrew Tanner | Mentor | https://shizune.co/investors/profile/andrew-tanner |
| Beth Zonis | Senior Director | — |
| Bob Goodman | Mentor | https://shizune.co/investors/profile/bob-goodman-5e57 |
| David Fogel | Lead Generalist Mentor | https://shizune.co/investors/profile/david-fogel |

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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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