# Greg Johnson

> Greg Johnson is a Series A investor at Prolog Ventures backing Sensor and Wireless. See 2 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Prolog Ventures](https://shizune.co/investors/profile/prolog-ventures)
- Total investments: 2
- Last investment: Feb 2013
- Lead investor: 50%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/gregory-johnson-16255613

Greg Johnson is a Series A investor at Prolog Ventures focused on Sensor and Wireless. A Prolog co-founder and managing director, Greg has been active in venture capital for more than 30 years. He has played a pivotal role in the early-stage funding of companies like Genelabs, Novellus, UroCor and Stereotaxis, all which later went public. Prior to Prolog, Greg was a general partner at the venture capital firm Gateway Associates,where he focused on early-stage investments in medical technology and advanced materials. Greg began his investing career in 1985 as vice president of venture capital at Monsanto. There he oversaw Monsanto’s $80 million portfolio of venture capital investments and was one of the architects of its international network of venture funds, including its pioneering technology fund in the UK. Greg holds a doctorate in physics from the University of Rochester and a bachelor’s degree from MIT.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Sensor | 1 | 50% |
| Wireless | 1 | 50% |
| Health Care | 1 | 50% |
| Biotechnology | 1 | 50% |
| Manufacturing | 1 | 50% |

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 1 | 50% |
| Funding Round | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Akermin | Akermin is based in St. Louis, Missouri, and was formed in 2004 to commercialize breakthrough stabilized enzyme technology invented at Saint Louis University. In 2008, Akermin demonstrated its prototype of a fully functioning biofuel cell operating on methanol fuel and using stabilized laccase to replace the metal catalyst in conventionalcathodes. Commercial applications in wireless sensors and military uses are their primary focus. Development for the use of stabilized enzymes in the food processing, biofuels, chemical, and pharmaceutical industries is under way. | $1.5M |  | Feb 19, 2013 |  |
| Akermin | Akermin is based in St. Louis, Missouri, and was formed in 2004 to commercialize breakthrough stabilized enzyme technology invented at Saint Louis University. In 2008, Akermin demonstrated its prototype of a fully functioning biofuel cell operating on methanol fuel and using stabilized laccase to replace the metal catalyst in conventionalcathodes. Commercial applications in wireless sensors and military uses are their primary focus. Development for the use of stabilized enzymes in the food processing, biofuels, chemical, and pharmaceutical industries is under way. | $5M | Series A | Nov 12, 2007 |  |

2 of 2 investments shown.

## Co-investors
- [St. Louis Arch Angels](https://shizune.co/investors/profile/st-louis-arch-angels) — VC Fund, 2 deals together
- [Chrysalix Venture Capital](https://shizune.co/investors/profile/chrysalix-energy) — VC Fund, 1 deal together
- [Malaysian Life Sciences Capital Fund](https://shizune.co/investors/profile/malaysian-life-sciences-capital-fund) — VC Fund, 1 deal together

## About Prolog Ventures

VC Fund · St Louis, United States

Prolog backs companies that help all of us enjoy healthy lives in a healthy world

5 contacts available at Prolog Ventures.

| Name | Title | Profile |
| --- | --- | --- |
| Greg Johnson | Founder & Managing Director | https://shizune.co/investors/profile/greg-johnson-2 |
| Ilya Nykin | Co-founder & Managing Director | https://shizune.co/investors/profile/iliya-nykin |
| Brian Clevinger | Founder & Managing Director | https://shizune.co/investors/profile/brian-clevinger |
| Courtney Harris | Controller | https://shizune.co/investors/profile/courtney-harris |
| Dan Broderick | Venture Partner | https://shizune.co/investors/profile/dan-broderick |

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund

## FAQ

### What does Greg Johnson invest in?

Greg Johnson invests primarily in Sensor, Wireless and Health Care startups, most often at Series A and Funding Round stage. Most of the 2 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 Greg Johnson last invest?

The most recent investment recorded for Greg Johnson closed in Feb 2013. Shizune tracks 2 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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