Investing Profile

Walter Winshall

AngelInvestor
Founder of Collaborative Seed and Growth Partners
Boston, Massachusetts
Photo of Walter Winshall, Angel at Collaborative Seed & Growth Partners

Signal uses Gmail to reveal intro paths. Email content is never read.

Sign in with Google →
cb
$10K - $500K
$100K
49
CompanyStageDateRound SizeTotal Raised
RISE Robotics
Series AApr 2025$2M
SeedAug 2012$2M
$7M
Co-investors: Reed Sturtevant (The Engine), Adam Draper (Boost VC), Michael Dornbrook (Speedy Packets Inc.), Bob Mason (Argonautic Ventures), Nick Hunley
Stocksnips
SeedDec 2022$430K
$2.1M
Co-investors: Ven Raju (Innovation Works), Peter Erin (Riverfront Ventures)
Avanlee Care
SeedFeb 2021
Co-investors: Esther Dyson (EPAM Systems), Susan Solinsky
Rheaply
SeedMar 2020$3M
$33M
Co-investors: Bradley Horowitz (Google Ventures), John Doerr (Kleiner Perkins), Brandon Middaugh (Fenice Energy), Mike Fitzgerald (High Alpha), Steve Case (Revolution)
Circle
Pre SeedDec 2018$800K
$760M
Co-investors: Lorenzo Thione (Gaingels), Hemant Taneja (General Catalyst), David Orfao (General Catalyst), Sam Bankman-Fried (FTX Ventures), Terrence Rohan (Index Ventures), Zachary Sims (Bowery Capital), David Eckstein (Sequoia Capital), Scott Weiss (Andreessen Horowitz), Keith Rabois (Khosla Ventures), Ron Conway (SV Angel), Saar Gur (CRV), Scott Hartley (Everywhere Ventures (The Fund)), Jenny Fielding (Everywhere Ventures (The Fund)), Anna Barber (Everywhere Ventures (The Fund)), Clifford Holekamp (Cultivation Capital), Mark Goldstein (Builders VC), Nicholas Chirls (Notation Capital), Glenn Hutchins (North Island Ventures), Ankur Nagpal (Vibe Capital), Matthew Ziskie (Bungalow Capital), David Ambrose (Steadfast Venture Capital), Raj Date (Fenway Summer), Barry Silbert (Grayscale Investments), Jamie Goldstein (Pillar VC), Esther Dyson (EPAM Systems), Ziv Reichert (Latitude), Scott Belsky (A24), Ronald Conway Sr. (NewCo), Yuri Milner (DST Global), Brian Pokorny (SV Angel LLC), Ashton Kutcher (Sound Ventures), David Sacks (Craft Ventures), Shervin Pishevar (ACME Capital), Paul Buchheit (Y Combinator), Naval Ravikant (Sm4rt Predictive Systems), Sahin Boydas (Angel investor), J J (GreaterGoodSociety), Sahil Lavingia, Sam Palmisano, Mathilde Collin
Immersed
Pre SeedDec 2017$340K
$17M
Co-investors: David Murray-Hundley (Space Tech Ventures), Brian Luerssen (LongJump VC), Ozzy Akay, Joshua Webster
Mainstay
SeedDec 2016$250K
Convertible NoteAug 2016$730K
$23M
Co-investors: Kevin Talbot (Relay Ventures), Esteban Sosnik (Reach Capital), Matthew Greenfield (Rethink Education), Charlie Cheever, Christopher Gabrieli
Revio
AngelOct 2016$500K
$9.5M
Co-investors: Scott Hartley (Everywhere Ventures (The Fund)), Anna Barber (Everywhere Ventures (The Fund)), Jenny Fielding (Everywhere Ventures (The Fund)), Gbenga Ajayi (QED Investors), Hayden Simmons (RaliCap), Carey Ransom (Launch House Ventures)
Sign in with Google →
Sign in with Google →