About
Peter Finley has broad experience in private equity and in startup businesses. He has focused on startup businesses in St. Louis since 2008, as a partner in Prosper Women Entrepreneurs Accelerator, which since 2015 has invested $50K in 10-12 women-led businesses annually; since 2010 as the founding COO and CFO of Observable Networks, a cybersecurity B2B SaaS business; as Interim CFO at Pulse Theraupeutics, a medical device business providing magnetic technology for stroke treatment; and as an angel investor. Before that, he had 25 years of experience investing private equity in over 35 middle-market companies, where his investments generated an average return of 5-6x investment over an average of 5-6 years. He co-founded and was Managing Principal of Thompson Street Capital Partners, a lower-middle-market private equity firm managing $450 mm in institutional funds, and held several positions culminating with Senior Managing Director at Harbour Group, a St. Louis-based private equity fi
Position in the VCSift Database
- • 2 investors at Prosper Women Entrepreneurs are tracked.
- • 1,303 investors hold the Managing Partner role in VCSift. Peter Finley is one of them.
- • 257 investors are based in St Louis, Missouri, United States.
Data sourced from 410,343 investor profiles. Updated July 2026.
Investment Focus
- Location
- St Louis, US
Contact Information
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