Investing Profile

Ken Seiff

InvestorVC
Managing Partner at Blockchange Ventures
blockchange.vcNew York, New York
Photo of Ken Seiff, Managing Partner at Blockchange Ventures
Your Intro Paths to Ken Seiff

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

Sign in with Google →
Networks Ken is a member of
IT CRUX Mobile Apps Solutions Network
397 CONNECTIONS
IT CRUX Mobile Apps Solutions Network
397 CONNECTIONS
IT CRUX Mobile Apps Solutions Network
397 CONNECTIONS
IT CRUX Mobile Apps Solutions Network
397 CONNECTIONS
The Wharton School Network
239 CONNECTIONS

Find Ken Seiff on

cb
Current Investing Position
Blockchange Ventures Managing Partner
Investment Range
$100K - $5.0M
Sweet Spot
$1.5M
Investments On Record
39

Ken Seiff is on these Sector & Stage Rankings

Ken Seiff's Investments On Record (28)

CompanyStageDateRound SizeTotal Raised
Balcony
SeedMay 2026$13M
$13M
Akave Cloud
SeedMar 2026$7M
Pre SeedNov 2024$3M
$10M
Kira
SeedAug 2025$7M
$28M
Co-investors: Carmen Chang (New Enterprise Associates (NEA)), Rick Yang (New Enterprise Associates (NEA)), Jenn Byrne (Grit Capital Partners), Andrew Ng (AI Fund), Rob Schmults (Blockchange Ventures), Michael Seibel (Y Combinator)
Zama
Series BJun 2025$57M
$130M
Co-investors: Paul Veradittakit (Pantera Capital), Tarun Chitra (Robot Ventures), Kyle Samani (Multicoin Capital)
Spexi
Series ADec 2024$12M
$18M
Co-investors: Adam Jackson (Cambrian Asset Management LLC), Vinny Lingham (Multicoin Capital)
Mawari
Series UnknownSep 2024$11M
SeedFeb 2023$7M
$29M
Co-investors: Paul Hsu (Decasonic), Pete Townsend (Norio Ventures)
Hivello
Pre SeedDec 2023$3M
$3M
Co-investors: Tobias Bauer (Blockchain Founders Fund), Yat Siu (LCX)
Afterparty
Series UnknownSep 2023$5M
$12M
Co-investors: Louis Beryl (Andreessen Horowitz), Jason Calacanis (Sequoia Capital), Spencer Rascoff (75 & Sunny), Lauren Kolodny (aCrew Capital), Vinny Lingham (Multicoin Capital), Brett Shear (Palm Tree Crew Investments), Andre Iguodala, Eytan Elbaz, Alex Adelman

Ken Seiff's Experience

Managing Partner Blockchange Ventures Full-time2017 - Present
Managing Partner Blockchange Ventures2017 - Present
Member of the Board of Directors Backbone PLM2016 - Present
Member of the Board of Directors PredictSpring Inc2014 - Present
Managing Partner Beanstalk Ventures2013 - Present
Member of the Board of Directors INTURN2013 - Present
Member of the Board of Directors Simply2013 - Present
CEO Pivot Rules Inc.2008 - Present
CEO IT CRUX Mobile Apps SolutionsPresent
Co-Founder & CEO IT CRUX Mobile Apps SolutionsPresent
Board Member IT CRUX Mobile Apps SolutionsPresent
Founder & CEO IT CRUX Mobile Apps SolutionsPresent
Member of the Board of Directors PredictSpring2014 - 2023
Member of the Board of Directors KULE2000 - 2022
EVP, Direct and Omni-Channel Brooks Brothers2011 - 2013
Co-Founder Poppin2009 - 2011
Co-Founder & CEO Pivot Rules Inc.2004 - 2009
Board Member Pivot Rules Inc.2002 - 2004
Founder & CEO Pivot Rules Inc.1991 - 1998

Ken Seiff's Education

University of Pennsylvania - The Wharton School BS Economics Entrepreneurial Management
The Wharton School BS Economics Entrepreneurial Management
Wharton School of Business BS Economics Entrepreneurial Management
University of Pennsylvania bachelors, bachelor of science economics, management