The Gladstone Companies is a private equity firm and venture debt provider. Team members are concentrated in Washington, District of Columbia, United States. The known portfolio counts 5 companies, including Buy Auto Parts, Sun State Nursery & Landscaping, AJ Engineering, Mason West and Rowan Energy.
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Investment focus
- Stage
- Late-Stage
Contacts
Who to pitch at The Gladstone Companies
The Gladstone Companies portfolio companies (5)
- Buy Auto Parts
- Sun State Nursery & Landscaping
- AJ Engineering
- Mason West
- Rowan Energy
Co-investors
Funds that share portfolio companies with The Gladstone Companies.
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About The Gladstone Companies
The firm's known deals cluster at Late-Stage.
Of the 4 people on file at The Gladstone Companies, David Dullum (President) and Erika Highland (Managing Director) are listed as the contacts to approach first.
The Gladstone Companies shares portfolio companies with 3 other investment firms, among them Everglades Equity and Digital Fuel Capital.
Frequently asked questions
What is The Gladstone Companies?
The Gladstone Companies is a private equity firm and venture debt provider whose team is concentrated in Washington, District of Columbia, United States, with a known portfolio of 5 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What stage does The Gladstone Companies invest at?
The known deals of The Gladstone Companies include Late-Stage rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at The Gladstone Companies?
2 of the 4 people on file at The Gladstone Companies are listed as contacts for the firm. All 4 have their own profile page.
How do I contact The Gladstone Companies?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 4 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal