Investor · San Mateo, CA

Ian W. Webster

Open Ian in the network graph →

Filings

9

SEC Form D

Connections

14

co-filers

Capital

$22.7M

across filings

Active

Nov 2022

to Jul 2025

Most-connected co-filers (14)

Tkf Ii Gp Llc · Fulton, MO3 shared Warren Chia · Burlington, MA3 shared Erich Schmidt · Avon, CO3 shared Tkf Ii Gp Llc · Fulton, MO3 shared Friends & Family Capital III, LLC · Menlo Park, CA2 shared Dax T. Mitchell · Dallas, TX2 shared Scott Carita · Wilmington, DE2 shared D. J. Harder · Calgary, Alberta, Canada2 shared Kaleb Thornhill · Wilmington, DE2 shared Paul Bothner · Wilmington, DE2 shared Michael W. D'Angelo · San Mateo, CA2 shared Hunter N. Harrison · FRISCO, CO1 shared Ganesh W. Bell · San Mateo, CA1 shared Colleen Gasiewski · Wilmington, DE1 shared

Recent filings (9)

Promptfoo, Inc.Jul 2025 · 7 co-filers$18.4M Promptfoo, Inc.Jul 2025 · 7 co-filers$18.4M IC Investors LPJun 2025 · 4 co-filers Friends & Family Capital III, L.P.Jun 2025 · 2 co-filers$125.0M Aegis Senior Credit LLCSep 2024 · 4 co-filers Promptfoo, Inc.Aug 2024 · 5 co-filers$5.3M Promptfoo, Inc.Aug 2024 · 5 co-filers$5.3M TKF II L.P.Nov 2023 · 4 co-filers$100.0M TKF II L.P.Nov 2023 · 4 co-filers$100.0M TKF II L.P.Nov 2022 · 4 co-filers$100.0M Friends & Family Capital III, L.P.Nov 2022 · 2 co-filers

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