Investor · Burlington, MA

Jonathan T. Decker

Open Jonathan in the network graph →

Filings

16

SEC Form D

Connections

63

co-filers

Capital

$25.4M

across filings

Active

Aug 2018

to Oct 2025

Most-connected co-filers (63)

Mick Sawka · New York, NY11 shared Peter Rothschild · Burlington, MA10 shared James Ryan · Burlington, MA10 shared Stephen A. Piazza · Clackamas, OR9 shared Anthony Fabiano · Burlington, MA8 shared Jeffrey Warming · Newton, MA7 shared Travis Cocke · Houston, TX6 shared Voss Advisors GP · Houston, TX6 shared Railroad Ranch Capital LP · DALLAS, TX5 shared James Posa · Victoria, British Columbia, Canada5 shared Railroad Ranch Capital Management, LP · DALLAS, TX5 shared Michael Cowell · St Peter Port, Y75 shared Matthew C. Elston · St Peter Port, Y75 shared Michael J. Piazza · Clackamas, OR5 shared Jason P. Finnis · Victoria, British Columbia, Canada5 shared Chris Mcerlane · St Peter Port, Y75 shared George P. Murphy · Victoria, British Columbia, Canada5 shared Noel Hall · Victoria, British Columbia, Canada5 shared Mark D. Rodliffe · St Peter Port, Y75 shared Benjamin Lightburn · Victoria, British Columbia, Canada5 shared Guy Prevost · Victoria, British Columbia, Canada5 shared Philip P. Christopher · Victoria, British Columbia, Canada5 shared Kenneth Hallat · Victoria, British Columbia, Canada5 shared Laurence S. Mcnairn · St Peter Port, Y75 shared

Recent filings (16)

Viken Detection CorpOct 2025 · 25 co-filers$10.0M Viken Detection CorpApr 2025 · 25 co-filers$5.0M Viken Detection CorpMar 2024 · 26 co-filers$10.0M Viken Detection CorpSep 2022 · 26 co-filers$8.0M Viken Detection CorpMay 2021 · 23 co-filers$10.0M Bast Fibre Technologies Inc.May 2021 · 26 co-filers$2.8M Bast Fibre Technologies Inc.Mar 2021 · 26 co-filers$450K Bast Fibre Technologies Inc.Jan 2021 · 26 co-filers$281K SaaS Capital QP Fund III(b) LPJun 2020 · 11 co-filers$10.3M SaaS Capital Fund III(b) LPJun 2020 · 11 co-filers$24.7M Bast Fibre Technologies Inc.Jun 2020 · 23 co-filers$448K Bast Fibre Technologies Inc.May 2020 · 23 co-filers$123K SaaS Capital QP Fund III(b) LPApr 2020 · 11 co-filers$45.0M SaaS Capital Fund III(b) LPApr 2020 · 11 co-filers$45.0M SaaS Capital QP Fund III, LPAug 2018 · 5 co-filers$19.2M SaaS Capital Fund III, LPAug 2018 · 5 co-filers$55.8M

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