Mark O'Connor, Senior Associate at Illinois Ventures is an active investor based in United States. This profile covers what Mark O'Connor backs, at which stage, and how founders can reach out in 2026.
Mark O'Connor is a Senior Associate at Illinois Ventures, with a background as a former startup founder and a focus on tech.
Mark O'Connor invests in SaaS & Enterprise and Artificial Intelligence, typically at Early Stage Venture.
- Investor type
- VC
- Stages
- Early Stage Venture
- Invests in
- SaaS & EnterpriseArtificial Intelligence
- Location
- United States
- Typical check
- $500K
How to reach Mark O'Connor
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Round Funded. "Mark O'Connor." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/mark-o-connor
Frequently Asked Questions
Who is Mark O'Connor?
Mark O'Connor, Senior Associate at Illinois Ventures is an active investor based in United States. Mark O'Connor invests in SaaS & Enterprise and Artificial Intelligence, typically at Early Stage Venture.
What does Mark O'Connor invest in?
Mark O'Connor invests in SaaS & Enterprise and Artificial Intelligence, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Mark O'Connor invest at?
Mark O'Connor typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Mark O'Connor's typical check size?
Mark O'Connor typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.