GreenGage Capital (David Johnsen Family Office)
GreenGage Capital (David Johnsen Family Office) is a single-family office headquartered in Wilmette, United States.

GreenGage Capital (David Johnsen Family Office)
GreenGage Capital (David Johnsen Family Office) is a single-family office headquartered in Wilmette, United States. Founded in 2013, it manages the wealth generated by David Johnsen’s 35-year institutional equities and asset-management career at Continental Bank, Bank of America, and as a founding partner of Chicago Equity Partners. The firm allocates private capital to alternative and early-stage opportunities—pursuing disciplined, thematic investments in industrial technology and defense.
General information
Firm type
Single Family Office
Year founded
2013
AUM
—
Location
Region
North America
Country
—
City
Wilmette
Corporate office
—
Frequently asked questions
What is GreenGage Capital (David Johnsen Family Office)?
GreenGage Capital (David Johnsen Family Office) is a single family office headquartered in Wilmette.
When was GreenGage Capital (David Johnsen Family Office) founded?
GreenGage Capital (David Johnsen Family Office) was founded in 2013.
Where is GreenGage Capital (David Johnsen Family Office) headquartered?
GreenGage Capital (David Johnsen Family Office) is headquartered in Wilmette, in the North America region.
What does Altss track for GreenGage Capital (David Johnsen Family Office)?
Altss maintains an OSINT-verified profile of GreenGage Capital (David Johnsen Family Office) covering investment focus (ESG policy, ticket size, target IRR, currency preference, regional focuses, industry focuses, technological focuses), team (service providers and advisors), deals (company deals and fund commitments), assets (real estate, public market positions, private companies, art and cultural holdings, philanthropy and foundations), and network (club memberships, associations, and event participation). Detailed values are available to Altss subscribers.
What is GreenGage Capital (David Johnsen Family Office)'s website?
GreenGage Capital (David Johnsen Family Office)'s public website is www.greengagecap.com. Verified contact details for principals and decision-makers are available to Altss subscribers.
What type of firm is GreenGage Capital (David Johnsen Family Office)?
GreenGage Capital (David Johnsen Family Office) is classified by Altss as a Single Family Office within the North America region.
How does Altss source intelligence on GreenGage Capital (David Johnsen Family Office)?
Altss combines OSINT (open-source intelligence) with regulatory filings, public disclosures, and licensed data partners. Source provenance is tracked to support compliance-ready research workflows.
How fresh is the Altss profile for GreenGage Capital (David Johnsen Family Office)?
GreenGage Capital (David Johnsen Family Office)'s profile is part of Altss's continuous-refresh dataset, with a full update cycle at least every 30 days and priority changes applied as new information is verified.
Company types
Confirmed
Pipeline
Indicated
Negative
Industry focuses
Confirmed
Pipeline
Indicated
Negative
Regional focuses
Confirmed
Pipeline
Indicated
Negative
Technological focuses
Confirmed
Pipeline
Indicated
Negative
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Get accessInvestment stages
Confirmed
Pipeline
Indicated
Negative
Emerging interests
Hard exclusions
ESG policy
Direct deal program
Emerging manager LP program
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Get accessManager maturity preference
Confirmed
Indicated
Ticket size (USD M, min/max)
Preferred fund size (USD M, min/max)
Investment horizon (years, min/max)
Target IRR (%)
Max leverage
Liquidity terms
Currency preference
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Get accessPhilanthropy-only themes
Political donations
Service Providers & Advisors
| Category | Firm | Years Active | Primary Contact |
|---|---|---|---|
Company Deals
| Date | Company | Type | Sector | Geography | Role | Amount | Deal Lead | Co-investors | Insight |
|---|---|---|---|---|---|---|---|---|---|
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Get accessFund Commitments
| Date | Fund | Strategy | Geography | Role | Fund size | Vintage |
|---|---|---|---|---|---|---|
Club Memberships and Associations & Advisors
| Organization | Role | Since | Notes |
|---|---|---|---|
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Get accessEvent & Conference Participation
| Event | Role | Date | Location |
|---|---|---|---|
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Continuous refresh with full update cycles at least every 30 days.
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