Dennis O. is an angel investor and operator angel based in San Carlos, California, United States. The known portfolio counts 6 companies: ReadyPulse, ServiceUp, Caliva, The Parent Company, Herbolea Biotech S.p.a. and MediaJel.
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Investment focus
- Sector
- ConsumerHealthcare
- Focus
- CannabisMarketing TechRegulated IndustriesSocial MediaSports
Contacts
Dennis O. portfolio companies (6)
- ReadyPulse
- ServiceUp
- Caliva
- The Parent Company
- Herbolea Biotech S.p.a.
- MediaJel
Investor Profile
The listing covers sectors Consumer and Healthcare, and focus areas Cannabis, Marketing Tech, Regulated Industries and Social Media. Startups operating in these areas may find Dennis O. relevant.
The portfolio and focus above give founders context on whether Dennis O. matches their raise.
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Frequently asked questions
Who is Dennis O.?
Dennis O. is an angel investor and operator angel based in San Carlos, California, United States with 6 known investments on file, among them ReadyPulse, ServiceUp and Caliva. The sections above list the sectors attached to that record.
What does Dennis O. invest in?
Listed sectors include Consumer and Healthcare; listed focus areas include Cannabis, Marketing Tech, Regulated Industries and Social Media. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
How do I contact Dennis O.?
An email address and a LinkedIn page are on file for Dennis O. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 6 September 2026 · How this data is built · Report a correction or request removal