Investor profile
Mark O'Connor
Accelerator, Syndicate / Angel group, Venture capital & Venture Capital Associate at Illinois Ventures
Mark O'Connor is a Venture Capital Associate at Illinois Ventures, whose known portfolio counts 10 companies.
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Investment focus
- Focus
- BiotechEnterprise SaaSIllinois-focusedIoTMedTechSolarTherapeuticsUniversity Spinouts
Contacts
Affiliated funds' portfolios
Venture Capital Associate at Illinois Ventures, whose known portfolio counts 10 companies
- Mesh
- Ascent Integrated Tech
- Excelsior Sciences
- Cadenza Bio
- Natrion
- Pathlit
- ClimeCast
- Elion Therapeutics
- GrayKea
- Integrated Dynamics
Investor Profile
Mark O'Connor is listed against sectors Climate, Hardware, Healthcare and SaaS, and focus areas Biotech, Enterprise SaaS, Illinois-focused and IoT in the database.
Stage-wise, the deals at Illinois Ventures cluster around Pre-Seed, Seed and Series A rounds.
What the affiliated firm has backed is the closest available signal on whether Mark O'Connor is worth approaching.
Colleagues at Illinois Ventures
John Mueller
Founding Member
Austin, United States
Thomas Parkinson
Senior Director
Champaign, United States
Alan Braverman
Founding Member
Chicago, United States
Craig Vodnik
Founding Member
Austin, United States
Todd Ofenloch
Founding Member
Boston, United States
Rishit Parikh
Investor
United States
Jackie DiMonte
Advisory Group
New York, United States
Derek Ferguson
Founding Member
Glencoe, United States
Phillip Lachman
Member
Boston, United States
Nancy Sullivan
Managing Director
United States
Frequently asked questions
Who is Mark O'Connor?
Mark O'Connor is an accelerator partner and syndicate member based in United States, listed as Venture Capital Associate at Illinois Ventures. The known portfolio of that firm counts 10 companies. That portfolio belongs to the firm, not to Mark O'Connor personally.
What does Mark O'Connor invest in?
Listed sectors include Climate, Hardware, Healthcare and SaaS; listed focus areas include Biotech, Enterprise SaaS, Illinois-focused and IoT. 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 Mark O'Connor invest at?
Illinois Ventures appears in Pre-Seed, Seed and Series A rounds across its known deals, and Mark O'Connor is listed there as Venture Capital Associate. 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 Mark O'Connor listed at?
Mark O'Connor is listed as Venture Capital Associate at Illinois Ventures. 10 other people in the database share a firm with Mark O'Connor.
How do I contact Mark O'Connor?
A LinkedIn page is on file for Mark O'Connor. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal