Karthik Ramasubramanian works as an Investor at Black Opal Ventures. The firm's known portfolio counts 9 companies.
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Investment focus
- Sector
- AIHealthcareSaaS
Contacts
Affiliated funds' portfolios
Investor at Black Opal Ventures, whose known portfolio counts 9 companies
- Ten63 Therapeutics
- Parasail
- Chamber Cardio
- Isaac Health
- Ansa Biotechnologies
- AuthMind
- Oath Surgical
- Thesis Care
- Roebling
Investor Profile
The listing covers sectors AI, Healthcare and SaaS, and focus areas Biotech, Digital Health, Drug Discovery and Healthcare Operations. Startups operating in these areas may find Karthik Ramasubramanian relevant.
Black Opal Ventures appears in Seed, Series A and Series B rounds across its known deals.
The firm portfolio and the focus above give founders context on whether Karthik Ramasubramanian matches their raise.
Colleagues at Black Opal Ventures
Lilly Alexander
Advisor
New York, United States
Tara Bishop
Founder and Managing Director
New York, United States
Franco Danesi
Advisor
London, United Kingdom
Tamra Lair
Advisor and Investment Committee Member
Boston, United States
Hanna E.
Investor
New York, United States
Joseph Jeong
Venture Partner
Chicago, United States
Eileen Tanghal
Early stage investor and Founder
San Carlos, United States
Frequently asked questions
Who is Karthik Ramasubramanian?
Karthik Ramasubramanian is a venture capital investor based in New York, United States, listed as Investor at Black Opal Ventures. The known portfolio of that firm counts 9 companies. That portfolio belongs to the firm, not to Karthik Ramasubramanian personally.
What does Karthik Ramasubramanian invest in?
Listed sectors include AI, Healthcare and SaaS; listed focus areas include Biotech, Digital Health, Drug Discovery and Healthcare Operations. 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 Karthik Ramasubramanian invest at?
Black Opal Ventures appears in Seed, Series A and Series B rounds across its known deals, and Karthik Ramasubramanian is listed there as Investor. 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 Karthik Ramasubramanian listed at?
Karthik Ramasubramanian is listed as Investor at Black Opal Ventures. 7 other people in the database share a firm with Karthik Ramasubramanian.
How do I contact Karthik Ramasubramanian?
An email address, a phone number and a LinkedIn page are on file for Karthik Ramasubramanian. 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