Ledger.
Investor · Sunnyvale, CA

Joseph Horowitz

Open Joseph in the network graph →
Filings
26
SEC Form D
Connections
202
co-filers
Capital
$19.1M
across filings
Active
Sep 2014
to Oct 2017

Most-connected co-filers (202)

Bob Finley · Sunnyvale, CA7 sharedBill Funcannon · Sunnyvale, CA7 sharedRay Rothrock · Menlo Park, CA7 sharedHui M. Hu · Las Vegas, NV6 sharedThomas Mawhinney · Palo Alto, CA6 sharedJeb M. Miller · Palo Alto, CA6 sharedRhonda Maclean · Sunnyvale, CA6 sharedSteve Goldberg · Sunnyvale, CA5 sharedTench Coxe · ALAMEDA, CA5 sharedMike Lloyd · Sunnyvale, CA5 sharedEduardo Gruener · Miami, FL5 sharedTed Hastings · Toronto, Ontario, Canada5 sharedMauricio Gruener · Miami, FL5 sharedElizabeth T. Gile · New York, NY5 sharedCharles S. Roberts · New York, NY5 sharedMorris Miller · San Antonio, TX4 sharedStaffan Bohman · Stockholm, V74 sharedAndrew Walker · Stockholm, V74 sharedKristina Kanestad · Stockholm, V74 sharedAnnika Berglund · Stockholm, V74 sharedMark Stibich · San Antonio, TX4 sharedHans Ola Meyer · Stockholm, V74 sharedPeter E. Wuppermann · Leadville, CO4 sharedMikael Bergstedt · Stockholm, V74 shared

Recent filings (26)

GFG Puntamar, LLCNov 2025 · 7 co-filersMomentum Mezzo Investors, LPJul 2025 · 7 co-filersMomentum Mezzo Investors, LPApr 2025 · 7 co-filersMomentum Mezzo Investors, LPMar 2025 · 7 co-filersIcon Ventures VII, L.P.Jan 2021 · 14 co-filers$375.0MREDSEAL, INC.Dec 2017 · 31 co-filers$975KATLAS COPCO ABOct 2017 · 52 co-filers$51KREDSEAL, INC.Dec 2016 · 27 co-filers$6.0MATLAS COPCO ABOct 2016 · 50 co-filers$130KIcon Ventures VI, L.P.Dec 2015 · 11 co-filers$260.0MATLAS COPCO ABAug 2015 · 46 co-filers$122KZephyr Health, Inc.Aug 2015 · 11 co-filers$20.0MMomentum Real Estate Fund II, LLCApr 2015 · 8 co-filers$56.5MAQUAVENTURE HOLDINGS LLCApr 2015 · 22 co-filers$35.9MRedSeal, Inc.Jan 2015 · 27 co-filers$18.5MATLAS COPCO ABOct 2014 · 44 co-filers$145KNANOTECH SECURITY CORP/FIOct 2014 · 20 co-filers$3.5MNANOTECH SECURITY CORP/FISep 2014 · 11 co-filers$3.5MAQUAVENTURE HOLDINGS LLCJun 2014 · 12 co-filersJAFCO Technology Partners V, L.P.Apr 2014 · 9 co-filers$257.4MArtBanc International Ltd., Inc.Mar 2013 · 12 co-filers$1.0MJAFCO Technology Partners V, L.P.May 2012 · 11 co-filers$300.0MArtBanc International Ltd., Inc.Feb 2012 · 12 co-filers$2.5MSITIME CorpMay 2011 · 15 co-filers$21.7MATTRIBUTOR CORPJun 2010 · 5 co-filers$2.9M

Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Joseph in the interactive graph →