# GreenGage Capital

GreenGage Capital is a Single Family Office based in Wilmette, United States.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Wilmette, United States
- **Region:** North America
- **Address:** Wilmette, IL, United States
- **Founded:** 2013
- **Assets under management:** Undisclosed
- **Website:** greengagecap.com
- **LinkedIn:** https://www.linkedin.com/company/greengagecapital/

## Regulatory record

- **Reports private funds:** No

## About

David Johnsen launched GreenGage Capital in 2013 upon retirement from institutional asset management. He previously served as a founding partner of Chicago Equity Partners and held roles at Continental Bank and Bank of America. The firm allocates across venture capital, direct co-investments, SPVs, fund-of-funds commitments, and private equity. Confirmed sector exposure includes InsurTech and Supply Chain & Logistics, with additional technology focus on Biotech, Edge & IoT, and Enterprise Software. All activity remains within North America. No public data exists on assets under management, headcount, or additional offices. Philanthropic activity includes support for Lawrence Hall. No operational events from the last 24 months appear in available records. The office maintains a tightly controlled mandate that limits external visibility and keeps decision-making within the family.

## Sectors

- InsurTech
- Supply Chain & Logistics

## People

- David Johnsen — Managing Partner and Founder

## Questions

### Who runs investment decisions at GreenGage Capital?

David Johnsen serves as Managing Partner and Founder and directs all investment activity.

### How does GreenGage Capital source proprietary deal flow?

The firm relies on relationships formed during Johnsen’s 35-year career at Continental Bank, Bank of America, and Chicago Equity Partners.

### Is GreenGage Capital structured as a single family office or does it operate more like a venture firm?

It is organized as a single-family office that deploys capital through venture, private equity, and co-investment vehicles.

### Does GreenGage Capital participate in fund commitments or only direct deals?

The firm uses direct co-investments, SPVs, fund-of-funds commitments, and private equity allocations.

### What investment stages does GreenGage Capital typically target?

Activity centers on venture capital and early-stage opportunities.

## Related profiles

- [Green Coast Enterprises](https://altss.com/profile/green-coast-enterprises)
- [GreenHawk Partners](https://altss.com/profile/greenhawk-partners-llc)

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Last updated: 2026-08-10T15:54:10.904Z

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