# Douglas Hannah

> Douglas Hannah is a venture - series unknown investor at Silverleaf Venture Partners backing Big Data. See 1 investments, check sizes, portfolio. Updated Aug…

- Type: Angel Investor
- Fund: [Silverleaf Venture Partners](https://shizune.co/investors/profile/silverleaf-venture-partners)
- Total investments: 1
- Last investment: Apr 2021
- Lead investor: 100%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/doug-hannah-080a9010/

Douglas Hannah is a venture - series unknown investor at Silverleaf Venture Partners focused on Big Data and Cannabis. Douglas co-founded Silverleaf Venture Partners to pursue cannabis-focused investing starting in 2017. The partners have completed over 25 investments in noteworthy companies including Jane Technologies, Ebbu and many others. As a partner of the Silverleaf companies since 2005 Doug has over two decades of experience as a principal investor inprivate equity and real estate. Completing his first transaction at the age of 17, his career has allowed him to complete over 150 round-trip investment transactions. Douglas graduated from the University of South Florida with a BS in Finance, has been a licensed real estate broker for over 30 years and has managed outside capital for over a decade.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Big Data | 1 | 100% |
| Cannabis | 1 | 100% |
| Analytics | 1 | 100% |
| Market Research | 1 | 100% |
| Business Intelligence | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Headset | Headset is a data-driven tech company that provides a business intelligence platform for the cannabis industry. Their services cover an array of specialized needs that businesses in the industry have, be they growers, extractors, processors, or retailers. The company's mission is to help operators make more informed business decisions throughdata. It aggregates multiple reporting sources to help analysts, producers, and retailers see opportunities and stay ahead of product trends.The company was founded in 2015 and is based in Seattle, Washington. | $1.8M | Venture - Series Unknown | Apr 30, 2021 |  |

1 of 1 investments shown.

## Co-investors
- [Poseidon Asset Management](https://shizune.co/investors/profile/poseidon-assetmanagement) — VC Fund, 1 deal together
- [WGD Capital](https://shizune.co/investors/profile/wgd-capital) — VC Fund, 1 deal together

## About Silverleaf Venture Partners

VC Fund · Stamford, United States

Silverleaf Venture Partners is a private equity investment manager that invests in the cannabis industry.Silverleaf Venture Partners is an investment manager. For over three decades its founding partners have invested in private equity, real estate and other entrepreneurial investments. Based on their diverse experiences, the managers havehoned their styles, skills and structures to minimize downside risk while capturing upside potential.In late summer 2017, the partners identified and recognized the potential of the cannabis industry to achieve outsized growth and made it their primary investment focus. Originally, they invested only their personal capital in nearly a dozen of the industry’s most respected companies. The company was founded in 2017 and based in Stamford, Connecticut.

2 contacts available at Silverleaf Venture Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Andre Haroche | Managing Partner and Co-Founder | https://shizune.co/investors/profile/andre-haroche |
| Douglas Hannah | Partner and Co-Founder | https://shizune.co/investors/profile/douglas-hannah |

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## FAQ

### What does Douglas Hannah invest in?

Douglas Hannah invests primarily in Big Data, Cannabis and Analytics startups, most often at Venture - Series Unknown 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 Douglas Hannah last invest?

The most recent investment recorded for Douglas Hannah closed in Apr 2021. 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.

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