Investor · London, United Kingdom
Martin Squier
Open Martin in the network graph →Filings
14
SEC Form D
Connections
67
co-filers
Capital
$4.0M
across filings
Active
Apr 2021
to Mar 2026
Most-connected co-filers (67)
Thomas W. Maizels · London, United Kingdom13 sharedLuke A. Kingston · London, United Kingdom8 sharedAdam S. Lewis · London, United Kingdom6 sharedHorizon Capital Llp · London, United Kingdom5 sharedSimon J. Hitchcock · London, United Kingdom4 sharedHorizon Capital Llp · London, United Kingdom4 sharedHorizon Capital Iii Gp Llp · London, United Kingdom4 sharedHorizon Capital Llp · London, United Kingdom4 sharedWilliam Hensley · Greenwood Village, CO3 sharedNicholas Tombleson · LONDON, United Kingdom3 sharedAli Wambold · New York, NY3 sharedJonathan Kagan · New York, NY3 sharedMatthew Denezza · Denver, CO3 sharedChase Lochmiller · Denver, CO3 sharedDavid A. Lapre · San Diego, CA3 sharedYunhui Gong · College Park, MD3 sharedRobin Bedford · Hamilton, Bermuda3 sharedRobert Gatte · College Park, MD3 sharedScott Brown · Greenwood Village, CO3 sharedKen Selby · Greenwood Village, CO3 sharedJack Mcclurg · Greenwood Village, CO3 sharedCharles Cavness · Denver, CO3 sharedVivek Pattipati · CHICAGO, IL3 sharedJamey Seely · Denver, CO3 shared
Recent filings (14)
Horizon Capital III Limited PartnershipMar 2026 · 6 co-filers$318.2MCellphire, Inc.Dec 2025 · 19 co-filers$3.0MHorizon Capital III Streamline LPMay 2025 · 14 co-filers$79.4MHorizon Capital III Streamline LPMay 2025 · 14 co-filers$79.4MHorizon Capital III Limited PartnershipMar 2025 · 19 co-filers$318.2MHorizon Capital III Limited PartnershipMar 2025 · 19 co-filers$318.2MHorizon Capital III Limited PartnershipMar 2024 · 19 co-filers$318.2MHorizon Capital III Limited PartnershipMar 2024 · 19 co-filers$318.2MCrusoe Energy Holdings Inc.Feb 2024 · 23 co-filers$200.0MCrusoe Energy Holdings Inc.Dec 2023 · 23 co-filers$150.0MHorizon Capital Cathedral Limited PartnershipNov 2023 · 9 co-filersHorizon Capital Cathedral Limited PartnershipNov 2023 · 9 co-filersCellphire, Inc.Oct 2023 · 25 co-filers$8.0MHorizon Capital II Raven LPMay 2023 · 9 co-filersHorizon Capital II Raven LPMay 2023 · 9 co-filersi-Lumen Scientific, Inc.Dec 2022 · 13 co-filers$17.6Mi-Lumen Scientific, Inc.Apr 2022 · 17 co-filers$18.5MCrusoe Energy Holdings Inc.Apr 2022 · 23 co-filers$350.0MHorizon Capital II Limited PartnershipApr 2021 · 14 co-filers$274.8MHorizon Capital II Limited PartnershipApr 2021 · 14 co-filers$274.8M
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Martin in the interactive graph →