What does Walter A Winshall invest in?

Walter A Winshall at Walter Winshall (Boston, MA, United States) — sector focus: Walt Winshall is the Principal in Collaborative Seed and Growth Partners, LLC, an investment firm specializing in the commercialization of early-stage technolo….

How do I contact Walter A Winshall?

Walter A Winshall's published profile links (website, LinkedIn or X where available) are listed on the StartupFundraising.com investor profile.

Where is Walter A Winshall based?

Walter A Winshall is based in Boston, MA, United States.

Walter A Winshall, Walter Winshall

About Walter A Winshall

Walter A. Winshall is the Principal and founder of Collaborative Seed and Growth Partners, an investment firm in Boston, MA that specializes in commercializing early-stage technology. He previously co-founded and chaired SilverPlatter International, a library information services company acquired by Wolters Kluwer in 2001, and holds an MIT electrical engineering degree plus a Harvard Law School diploma. Winshall focuses on pre-seed and seed-stage investments, primarily in AI, angel, and scout sectors within the Boston and New England startup ecosystem. His typical check sizes range from approximately $425,000 to undisclosed amounts, and he actively engages with portfolio companies in a collaborative, supportive capacity rather than strictly leading or following. Notable portfolio companies include PillPack, Harmonix (creators of Guitar Hero), StoryFit, Notion, and Rheaply. Winshall has made roughly 49 investments with 13 exits, including early backing of Harmonix and Techstars companies, reflecting a long track record since 1970 in tech commercialization. No distinctive public writing or unique point of view beyond his firm’s focus on early-stage

Walter A Winshall at a glance

Role: Angel Investor
Organization: Walter Winshall
Location: Boston, MA, United States
Investor type: Individual/Angel
Focus areas: Walt Winshall is the Principal in Collaborative Seed and Growth Partners, LLC, an investment firm specializing in the commercialization of early-stage technology. Previously, he was the Co-founder and Chairman of SilverPlatter International, NV, a company providing information services for libraries. He is also a member of the Board of Directors of AgaMatrix, Inc., HealthCare IT

Frequently asked about Walter A Winshall

What does Walter A Winshall invest in?: Walter A Winshall at Walter Winshall (Boston, MA, United States) — sector focus: Walt Winshall is the Principal in Collaborative Seed and Growth Partners, LLC, an investment firm specializing in the commercialization of early-stage technolo….
How do I contact Walter A Winshall?: Walter A Winshall's published profile links (website, LinkedIn or X where available) are listed on the StartupFundraising.com investor profile.
Where is Walter A Winshall based?: Walter A Winshall is based in Boston, MA, United States.

This profile is part of the StartupFundraising investor database: focus, portfolio history, disclosed location and contact routes, refreshed as new filings and rounds are ingested. Founders use it to check fit before reaching out and to find investors in Boston.

Walter A Winshall, Walter Winshall

About Walter A Winshall

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