Investor · San Francisco, CA

Paul Sieminski

Open Paul in the network graph →

Filings

23

SEC Form D

Connections

56

co-filers

Capital

$355.7M

across filings

Active

Apr 2018

to Oct 2025

Most-connected co-filers (56)

Jamie W. Vickery · GLASGOW, KY12 shared Craig N. Shapiro · New York, NY10 shared Hemant Bhardwaj · Cary, NC7 shared Nilesh C. Kumar · Watertown, MA6 shared John Hanson · Miami, FL6 shared Matthew Perelman · New York, NY4 shared Matthew Mullenweg · San Francisco, CA4 shared Alex Sloane · New York, NY4 shared Toni Schneider · San Francisco, CA4 shared Ann Dunwoody · San Francisco, CA3 shared Tony Conrad · LOS ANGELES, CA3 shared Lukasz Tomicki · Austin, TX2 shared N. Collab Sos Gp, Llc · New York, NY2 shared Peter O. Kane · SANTA MONICA, CA2 shared Raymond S. Chan · New York, NY2 shared Baerbel G. Rohrer · Charleston, SC2 shared Phillip Black · San Francisco, CA2 shared Rick G. Schnellman · Charleston, SC2 shared Michael Voevodsky · Charleston, SC2 shared Gyda C. Beeson · Charleston, SC2 shared Philip Black · PALO ALTO, CA2 shared Adam Berns · SANTA MONICA, CA2 shared Alan Yang · SANTA MONICA, CA2 shared Jeffrey P. Chamberlain · Naperville, IL2 shared

Recent filings (23)

Collab Air Fund I, L.P.Oct 2025 · 4 co-filers Simple Capital Diversified Assets, LLCFeb 2024 · 4 co-filers$12.1M Collaborative Sustainable Solutions, L.P.Jul 2022 · 10 co-filers$200.0M Collaborative Sustainable Solutions, L.P.Dec 2021 · 8 co-filers$150.0M Collaborative V, L.P.Apr 2021 · 4 co-filers$125.0M Automattic Inc.Feb 2021 · 16 co-filers$288.0M Collaborative Growth, L.P.Mar 2020 · 4 co-filers$500.0M Collab IV T-A, LLCMar 2020 · 4 co-filers$2.0M Automattic Inc.Dec 2019 · 16 co-filers$80.7M Automattic Inc.Sep 2019 · 7 co-filers$300.0M Collab III L-B, LLCAug 2019 · 3 co-filers$7.0M CAMBRIDGE FRANCHISE PARTNERS, LLCAug 2018 · 3 co-filers CAMBRIDGE FRANCHISE PARTNERS, LLCAug 2018 · 3 co-filers CAMBRIDGE FRANCHISE PARTNERS, LLCAug 2018 · 3 co-filers Spruce Holdings Inc.Jul 2018 · 8 co-filers CARDINAL MEMORIAL ULTIMATE HOLDINGS, LLCJun 2018 · 10 co-filers$15.0M Collab Currency, L.P.Jun 2018 · 4 co-filers$100.0M CAMBRIDGE FRANCHISE PARTNERS, LLCJun 2018 · 5 co-filers Collaborative IV, L.P.May 2018 · 6 co-filers$100.0M Yup Technologies Inc.Apr 2018 · 4 co-filers$16.3M CAMBRIDGE FRANCHISE PARTNERS, LLCApr 2018 · 5 co-filers CAMBRIDGE FRANCHISE PARTNERS, LLCApr 2018 · 5 co-filers Automattic Inc.May 2014 · 6 co-filers$160.0M

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