McLain Southworth
Managing Partner, Co-Founder at Haven Ventures
Palo Alto, California
McLain Southworth, Managing Partner, Co-Founder at Haven Ventures is an active investor based in Palo Alto, California. This profile covers what McLain Southworth backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCPEInvestment PartnerFounderInvestor
- Stages
- Early Stage VentureSeries A
- Invests in
- Fintech
- Location
- Palo Alto, California
- Typical check
- $750K
- Past investments
- 1
Notable investments
FathomHow to reach McLain Southworth
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Round Funded. "McLain Southworth." Round Funded investor database, updated October 19, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/mclain-southworth
Frequently Asked Questions
What does McLain Southworth invest in?
McLain Southworth invests in Fintech, typically at Early Stage Venture and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does McLain Southworth invest at?
McLain Southworth typically invests at Early Stage Venture and Series A. Lead with traction that fits the stage when you reach out.
What is McLain Southworth's typical check size?
McLain Southworth typically writes checks around $750K. 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.