Overview

Update
Primary Role
Principal @
Investments
41 Investments in 34 Companies
Gender:
Male
Location:
Boston
Social:

Person Details

Update

Walter A. Winshall serves as a Principal in Collaborative Seed and Growth Partners, LLC, an investment firm specializing in the commercialization of early-stage technology. Previously, he was a co-founder and Chairman of SilverPlatter International, NV, a company providing information services for libraries, which was acquired by the Dutch publishing company Wolters Kluwer in 2001. He serves as a member of the Board of Directors of AgaMatrix, Inc., HealthCare IT, Inc., and MOCA Systems, Inc. He graduated from MIT in electrical engineering and from the Harvard Law School. At AgaMatrix, Walt provides guidance in corporate development strategy.

Jobs (2)

Update
Current
Past
Started
Ended
Title
Company
Unknown
Unknown
co-founder and Chairman

Board & Advisor Roles (4)

Update
DateInvested InRoundDetails
Aug, 2016$728k / Convertible NotePersonal Investment
Mar, 2016$2.25M / SeedPersonal Investment
Jan, 2016$3M / Debt FinancingPersonal Investment
Jul, 2015$300k / SeedPersonal Investment
Apr, 2015$870k / SeedPersonal Investment
Nov, 2014$3M / SeedPersonal Investment
Oct, 2014$200k / SeedPersonal Investment
Jul, 2014$610k / Convertible NotePersonal Investment
Mar, 2014$1.2M / Series APersonal Investment
Mar, 2014$1.75M / AngelPersonal Investment
Jan, 2014$275k / AngelPersonal Investment
Jan, 2014$640k / Convertible NotePersonal Investment
Jan, 2014$750k / SeedPersonal Investment
Dec, 2013$460k / SeedPersonal Investment
Oct, 2013undisclosed amount / SeedPersonal Investment
Oct, 2013$1.2M / SeedPersonal Investment
Sep, 2013$5M / VenturePersonal Investment
Jul, 2013$3.5M / Series APersonal Investment
Jun, 2013$362.5k / AngelPersonal Investment
Apr, 2013$2.5M / SeedPersonal Investment
Apr, 2013$3M / Series APersonal Investment
Apr, 2013$550k / SeedPersonal Investment
Mar, 2013$400k / AngelPersonal Investment
Jan, 2013$4.4M / SeedPersonal Investment
Jan, 2013$222.5k / AngelPersonal Investment
Dec, 2012$1.38M / SeedPersonal Investment
Nov, 2012$2.7M / SeedPersonal Investment
Nov, 2012$600k / SeedPersonal Investment
Oct, 2012$2M / SeedPersonal Investment
Aug, 2012$1.52M / SeedPersonal Investment
Jul, 2012$7M / Series APersonal Investment
Jul, 2012$300k / SeedPersonal Investment
Dec, 2011$330k / AngelPersonal Investment
Oct, 2011$435k / SeedPersonal Investment
Oct, 2011$750k / SeedPersonal Investment
Oct, 2011$1.7M / SeedPersonal Investment
Sep, 2011$1M / VenturePersonal Investment
Sep, 2011$1.85M / SeedPersonal Investment
Sep, 2011$900k / SeedPersonal Investment
Mar, 2011$300k / AngelPersonal Investment

Education (1)

Update

Add Memberships

Add Images

Add Videos