Investor profile
Justin Marcus
Private equity, Venture debt & Managing Director at Riverside Management Group
Justin Marcus is a Managing Director at Riverside Management Group, whose known portfolio counts 7 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Managing Director at Riverside Management Group, whose known portfolio counts 7 companies
- NewChannel
- China Chengxin Credit
- Polaris Networks
- AdhereHealth
- Silicon Genesis
- ePolicy
- AccessLine Communications
Investor Profile
Founders in the listed sectors Commerce, FinTech, Hardware and Healthcare, and focus areas Audio, Communications Infrastructure, InsurTech and Semiconductors fall inside that listing.
Stage-wise, the deals at Riverside Management Group cluster around Growth, Seed and Series A rounds.
What the affiliated firm has backed is the closest available signal on whether Justin Marcus is worth approaching.
Colleagues at Riverside Management Group
Jay Wickham
Managing Director
New York, United States
John Baker
Managing Director
San Francisco, United States
Mark Bernegger
Founder and Managing Director
Westport, United States
Richard Healy
Managing Director
Annapolis, United States
Eric Emmert
Managing Director - Head of Credit
United States
Will Deitrick
Managing Director
Palm Beach, United States
Shanker Merchant
Managing Director
New York, United States
Chris Wood
Managing Director
Westport, United States
Clifford Smallman
Managing Director
Miami Beach, United States
Duarte Carvalho
Chief Executive Officer
Watertown, United States
Frequently asked questions
Who is Justin Marcus?
Justin Marcus is a private equity investor and venture debt investor based in Miami, Florida, United States, listed as Managing Director at Riverside Management Group. The known portfolio of that firm counts 7 companies. That portfolio belongs to the firm, not to Justin Marcus personally.
What does Justin Marcus invest in?
Listed sectors include Commerce, FinTech, Hardware and Healthcare; listed focus areas include Audio, Communications Infrastructure, InsurTech and Semiconductors. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Justin Marcus invest at?
Riverside Management Group appears in Growth, Seed and Series A rounds across its known deals, and Justin Marcus is listed there as Managing Director. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Justin Marcus listed at?
Justin Marcus is listed as Managing Director at Riverside Management Group. 10 other people in the database share a firm with Justin Marcus.
How do I contact Justin Marcus?
An email address, a phone number and a LinkedIn page are on file for Justin Marcus. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal