Investor · Radnor, PA

Douglas D. Byrd

Open Douglas in the network graph →

Filings

9

SEC Form D

Connections

53

co-filers

Capital

$57.0M

across filings

Active

May 2023

to Dec 2025

Most-connected co-filers (53)

Apiz Bin Mohamad · London, United Kingdom4 shared James Sabala · VANCOUVER, British Columbia, Canada4 shared Third North Global Gp Llc · Dix Hills, NY3 shared Third North Global Gp Llc · Dix Hills, NY3 shared Md Shafiqul Islam · CAMBRIDGE, United Kingdom3 shared Robert Bailey · Houston, TX3 shared Geoffrey Butler · Grand Cayman, Cayman Islands3 shared Tejvir Singh · Dix Hills, NY3 shared Jay Matlani · Dix Hills, NY3 shared Kenneth R. Gerold · New York, NY2 shared Eric K. Seiff · Surfside, FL2 shared Brigham Hyde · New York, NY2 shared Jeromy Salvesen · Issaquah, WA2 shared Mary Ann R. Todd · New York, NY2 shared James Rothschild · New York, NY2 shared Lisa Garett · Berkeley, CA2 shared Ian J. Vawter · Lutherville, MD2 shared Ulric Cote · Berkeley, CA2 shared Heather Knight · Berkeley, CA2 shared Tim Berkowitz · Berkeley, CA2 shared William Malecki · Berkeley, CA2 shared C7 GP LLC · Morristown, NJ2 shared Richard A. Emmitt · Basking Ridge, NJ2 shared Kurt Ursich · Issaquah, WA2 shared

Recent filings (9)

Span.IO, Inc.Jan 2026 · 6 co-filers$175.8M Belong Health, Inc.Dec 2025 · 14 co-filers$442K Belong Health, Inc.Dec 2025 · 14 co-filers$442K Span.IO, Inc.Sep 2025 · 24 co-filers$70.1M Belong Health, Inc.Jul 2025 · 2 co-filers$58.3M Belong Health, Inc.Jul 2025 · 2 co-filers$58.3M Third North Global Partners LPMay 2025 · 7 co-filers Third North Global Partners LPMay 2024 · 7 co-filers Channel Medsystems, Inc.Mar 2024 · 20 co-filers$10.0M Third North Global Partners LPMay 2023 · 7 co-filers Channel Medsystems, Inc.May 2023 · 22 co-filers$16.3M

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