# Bryan Hassin

> Bryan Hassin is a seed investor in Boulder backing Energy and Shipping. See 4 investments, round sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Location: Boulder, United States
- Total investments: 4
- Last investment: Sep 2022
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/bryanguidohassin
- X (Twitter): http://twitter.com/guido23
- Website: http://GreenKnig.ht

Bryan Hassin is a seed investor in Boulder focused on Energy and Shipping. Global tech startup CXO and board director. Passionate leader who builds and motivates teams to achieve audacious goals with urgency and purpose. Seasoned entrepreneur with USD $350M+ of exits and a track record of driving disruptive tech from launch to rapid scale both in startups and within large organizations. Mentor and force multiplier whosementees have created USD $100B+ enterprise value. Born at 337.10 PPM.

## Contacts

5 contacts available for Bryan Hassin: 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/bryan-guido-hassin?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Energy | 1 | 25% |
| Shipping | 1 | 25% |
| CleanTech | 1 | 25% |
| Education | 1 | 25% |
| GreenTech | 1 | 25% |

16 industries tracked in total.

## Investments

| Company | Description | Round size | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| WeSolar CSP | WeSolar CSP is a minority-owned American renewable energy technology and design company. |  | Seed | Sep 21, 2022 | https://WeSolarcsp.com |
| Terra.do | Terra.do operate as an online climate school. Terra.do collaborate with experts from the field to offer learners an overview of the entire climate landscape. The company was founded in 2020 and is based in Stanford, California, United States. | $5M | Seed | Jun 13, 2022 | https://www.terra.do/ |
| LimeLoop | Limeloop is operates a packaging and shipping platform. |  | Seed | Jul 01, 2021 | https://www.thelimeloop.com/ |
| RIZOME | Climate-Positive Building |  | Seed | Jun 01, 2021 | http://rizomeco.com/ |

4 of 4 investments shown.

## Co-investors
- [City Light Capital](https://shizune.co/investors/profile/city-light-capital) — VC Fund, 2 deals together
- [TELUS Pollinator Fund for Good](https://shizune.co/investors/profile/telus-pollinator-fund-for-good) — VC Fund, 2 deals together
- [Avaana Capital](https://shizune.co/investors/profile/avaana-capital) — VC Fund, 1 deal together
- [Avesta Fund](https://shizune.co/investors/profile/avesta-fund) — VC Fund, 1 deal together
- [C3](https://shizune.co/investors/profile/c3-cf77) — VC Fund, 1 deal together
- [E8 Angels](https://shizune.co/investors/profile/e8-angels) — VC Fund, 1 deal together

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## Featured in investor lists
- [CleanTech Angel Investors in United States](https://shizune.co/investors/cleantech-angel-investors-united-states)
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## FAQ

### What does Bryan Hassin invest in?

Bryan Hassin invests primarily in Energy, Shipping and CleanTech startups, most often at Seed stage. Most of the 4 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Bryan Hassin?

Public channels for Bryan Hassin include LinkedIn, X (Twitter) and the website linked on this profile. 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 Bryan Hassin last invest?

The most recent investment recorded for Bryan Hassin closed in Sep 2022. Shizune tracks 4 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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