TBJ Investments is a family office and private equity firm. Based in Washington, District of Columbia, United States. Among the 2 companies in the known portfolio are iRhythm Technologies and Buzzient.
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Investment focus
- Stage
- Late-StageSeries A
- Focus
- CRMClean EnergyDiagnosticsEnterprise SaaSMedTechUniversity commercialization
Who to pitch at TBJ Investments
TBJ Investments portfolio companies (2)
- iRhythm Technologies
- Buzzient
Co-investors
Funds that share portfolio companies with TBJ Investments.
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About TBJ Investments
The firm's listing covers sectors Climate, FinTech, Hardware and Healthcare, and focus areas CRM, Clean Energy, Diagnostics and Enterprise SaaS; known deals cluster at Late-Stage and Series A.
The contact to approach at TBJ Investments is Tim Jones (Startup Advisor).
TBJ Investments shares portfolio companies with one other investment firm, St. Jude Medical.
Frequently asked questions
What is TBJ Investments?
TBJ Investments is a family office and private equity firm based in Washington, District of Columbia, United States, with a known portfolio of 2 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does TBJ Investments invest in?
Listed sectors include Climate, FinTech, Hardware and Healthcare; listed focus areas include CRM, Clean Energy, Diagnostics and Enterprise SaaS. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does TBJ Investments invest at?
The known deals of TBJ Investments include Late-Stage and Series A 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 TBJ Investments?
One person at TBJ Investments is on file, listed as a contact for the firm, with their own profile page.
How do I contact TBJ Investments?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The one person attached to the firm has their own page, which shows 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