Bob Oebrien, CEO at O'Brien Capital, LLC is an active investor based in St. Louis, Missouri. This profile covers what Bob Oebrien backs, at which stage, and how founders can reach out in 2026.
Bob Oebrien invests in Marketplace, typically at Series B and Late Stage Venture. Portfolio companies on record include GirlsAskGuys.com.
- Location
- St. Louis, Missouri
- Typical check
- $5M
- Past investments
- 1
What does Bob Oebrien invest in?
- Investor type
- PE
- Stages
- Series BLate Stage Venture
- Invests in
- Marketplace
Where is Bob Oebrien based?
Bob Oebrien is based in St. Louis, Missouri.
- Browse more startup investors near Bob Oebrien:
- Startup investors in the United States
Which companies has Bob Oebrien invested in?
How to reach Bob Oebrien
Angels and operators like Bob Oebrien reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
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About this profile
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Cite this page
Round Funded. "Bob Oebrien." Round Funded investor database, updated September 25, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/bob-oebrien
Frequently Asked Questions
Who is Bob Oebrien?
Bob Oebrien, CEO at O'Brien Capital, LLC is an active investor based in St. Louis, Missouri. Bob Oebrien invests in Marketplace, typically at Series B and Late Stage Venture. Portfolio companies on record include GirlsAskGuys.com.
What does Bob Oebrien invest in?
Bob Oebrien invests in Marketplace, typically at Series B and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Bob Oebrien invest at?
Bob Oebrien typically invests at Series B and Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Bob Oebrien's typical check size?
Bob Oebrien typically writes checks around $5M. Use it as a signal for whether your raise fits their stage.
Where is Bob Oebrien based?
Bob Oebrien is based in St. Louis, Missouri.
Which companies has Bob Oebrien invested in?
Companies Bob Oebrien has backed, according to the Round Funded catalog, include GirlsAskGuys.com.
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.
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