# Michael Tzannes

> Michael Tzannes is a pre-seed investor at Tzannes Patent Management, LLC backing CleanTech. See 1 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Tzannes Patent Management, LLC](https://shizune.co/investors/profile/tzannes-patent-management-llc)
- Location: Lexington, United States
- Total investments: 1
- Last investment: May 2023
- Lead investor: 100%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/michaeltzannes/

Michael Tzannes is a pre-seed investor at Tzannes Patent Management, LLC in Lexington focused on CleanTech and Marine Technology. Michael Tzannes has spent his career leading companies and building teams that improve the way people process and communicate digital information. From 1990 to 2012, he was with Aware, Inc. (NASDAQ: AWRE, IPO in 2016) as Executive Chairman, Chief Executive Officer, and Chief Technical Officer. Aware was a communications technology pioneer andthe leading supplier of silicon intellectual property to the digital subscriber line (DSL) industry. Since 2012, Michael has been an advisor and informal investor in start-ups in Greece. Michael was Chairman and co-Founder of audio software company Accusonus, acquired in 2022 by Meta. He also currently serves on Boards at Irida Labs, Yodiwo, Athroa Innovations and 5G Ventures. In 2023, Michael invested in and joined the Board of Digital Earth Solutions in Spain. In 2012, he and Marcos Tzannes founded TzPM, providing business strategy and intellectual property management as well as expert advice in technology licensing and patent litigation.The Optimality Fund, which Michael started with Alex Tsilfidis and Elias Kokkinis in 2022 invests in technology startups.Michael is a lifelong innovator with patents in core technologies for multicarrier DWMT communications, MP3 audio, DSL, Wi-Fi, LTE and audio processing. Michael also founded Aware's patent management operations and sold DSL, networking and signal processing patents to Intellectual Ventures, Intel, Techquity and others. Michael is on the Advisory Board for the Electrical Engineering department at Tufts University. He is a member of classic rock cover band French Lick that performs at charity events throughout the Boston area. Michael was valedictorian at the University of Patras, Greece and holds a Master’s Degree from the University of Michigan and a Ph.D. from Tufts University, all in Electrical Engineering.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| CleanTech | 1 | 100% |
| Marine Technology | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Digital Earth Solutions | Digital Earth technologies hope to aid in the preservation of marine habitats through creative ocean modeling technologies | $160.9K | Pre-Seed | May 25, 2023 |  |

1 of 1 investments shown.

## About Tzannes Patent Management, LLC

VC Fund

Intellectual Property Management Advisors

1 contacts available at Tzannes Patent Management, LLC.

| Name | Title | Profile |
| --- | --- | --- |
| Michael Tzannes | Executive Manager | https://shizune.co/investors/profile/michael-tzannes |

## Similar investors

### Similar industry
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [SOSV](https://shizune.co/investors/profile/sosv) — VC Fund
- [Breakthrough Energy Ventures](https://shizune.co/investors/profile/breakthrough-energy-ventures) — VC Fund

### 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

### Similar country
- [ENISA](https://shizune.co/investors/profile/enisa-2) — VC Fund
- [Inveready](https://shizune.co/investors/profile/inveready-technology-investment-group) — VC Fund
- [Angels Capital](https://shizune.co/investors/profile/angels-capital) — VC Fund

## Featured in investor lists
- [CleanTech Investors in Spain](https://shizune.co/investors/cleantech-investors-spain)
- [Energy Angel Investors in Spain](https://shizune.co/investors/energy-angel-investors-spain)
- [Sustainability Angel Investors in Spain](https://shizune.co/investors/sustainability-angel-investors-spain)
- [Impact Angel Investors in Spain](https://shizune.co/investors/impact-angel-investors-spain)
- [CleanTech Angel Investors](https://shizune.co/investors/cleantech-angel-investors)
- [CleanTech Angel Investors in Spain](https://shizune.co/investors/cleantech-angel-investors-spain)

## FAQ

### What does Michael Tzannes invest in?

Michael Tzannes invests primarily in CleanTech and Marine Technology startups, most often at Pre-Seed stage. Most of the 1 investments tracked by Shizune back companies in Spain. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Michael Tzannes last invest?

The most recent investment recorded for Michael Tzannes closed in May 2023. 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