Investor · Boulder, CO

Thomas C. Birch

Open Thomas in the network graph →

Filings

8

SEC Form D

Connections

69

co-filers

Capital

$3.1M

across filings

Active

Jul 2022

to Jul 2025

Most-connected co-filers (69)

John E. Mahoney · Boulder, CO6 shared Timothy J. Hanlon · Boulder, CO6 shared Steve S. Deitsch · Fort Collins, CO4 shared Jeffrey J. Thramann · Boulder, CO4 shared Michael J. Lawless · Boulder, CO4 shared Ross R. Bhappu · Denver, CO2 shared Michael J. Rowe · Denver, CO2 shared Mason G. Hills · Denver, CO2 shared Martin A. Valdes · Denver, CO2 shared Brett M. Beatty · Denver, CO2 shared James T. Mcclements · Denver, CO2 shared Robert Ainbinder · New York, NY2 shared Mark Grinbaum · New York, NY2 shared Carolina Abenante · New York, NY2 shared Christopher J. Corbett · Denver, CO2 shared Russell L. Cranswick · Denver, CO2 shared Richard Upton · Pittsburgh, PA2 shared Sherri A. Croasdale · Denver, CO2 shared Sergey Tsoy · New York, NY2 shared Lyle D. Bruce · Denver, CO2 shared Michele A. Valenti · Denver, CO2 shared David S. Connor · Nashville, TN2 shared Thomas O'Neill · New York, NY2 shared Devin Johnson · Indianapolis, IN2 shared

Recent filings (8)

AUDDIA INC.Jul 2025 · 17 co-filers$750K AUDDIA INC.Jul 2025 · 17 co-filers$750K Resource Capital Fund (Cardinal) L.P.May 2024 · 51 co-filers Resource Capital Fund VIII L.P.May 2024 · 52 co-filers AUDDIA INC.May 2024 · 17 co-filers$2.3M AUDDIA INC.May 2024 · 17 co-filers$2.3M A/PA/WCS Group Holdco, LLCMar 2024 · 14 co-filers$4.0M Cold Plunge Studios Holdings LLCMar 2023 · 8 co-filers$480K Cold Plunge Studios Holdings LLCJul 2022 · 8 co-filers$350K A/PA/WCS Group Holdco, LLCJul 2022 · 17 co-filers$12.8M

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