Investor · Marlborough, MA
Daniel Leff
Open Daniel in the network graph →Capital
$18.5M
across filings
Active
Nov 2022
to Jan 2025
Most-connected co-filers (55)
Duncan Bourgoin · Marlborough, MA4 sharedDavid Bradwell · Marlborough, MA4 sharedLewis K. Von Thaer · West Jefferson, OH4 sharedMatthew Blaszka · Birmingham, AL4 sharedMarcelo Kim · Marlborough, MA4 sharedA Sobel LLC · Las Vegas, NV3 sharedMichael G. Bruce · Pleasanton, CA2 sharedRichard M. West · Durham, NC2 sharedDavid Derosa · Harrison, NY2 sharedBarry P. Boothe · Sherman, TX2 sharedCurtis Hall · Sherman, TX2 sharedDarold P. Adami · Sherman, TX2 sharedCaleb Venable · Sherman, TX2 sharedDevin Antin · Playa Vista, CA2 sharedKyle Boothe · Sherman, TX2 sharedJ. A. Yepez · Palo Alto, CA2 sharedWilliam P. Glass · Westlake, TX2 sharedJeff Ransdell · Miami, FL2 sharedSteven C. Feick · San Ramon, CA2 sharedIain J. Baird · Glasgow, United Kingdom2 sharedDavid M. Lawrence · Glasgow, United Kingdom2 sharedMark R. Bamforth · Glasgow, United Kingdom2 sharedJoe P. Brown · Sherman, TX2 sharedThomas P. Boothe · Sherman, TX2 shared Recent filings (9)
Aether Group, LLCOct 2025 · 2 co-filers$1.5MAmbri, Inc.Jan 2025 · 20 co-filers$15.4MAmbri, Inc.Jan 2025 · 20 co-filers$15.4MAether Group, LLCSep 2024 · 2 co-filers$1.5MNew Ambri, Inc.Aug 2024 · 20 co-filers$7.4MNew Ambri, Inc.Aug 2024 · 20 co-filers$7.4MAether Group, LLCAug 2024 · 2 co-filers$500KSapphire Group, LLCApr 2023 · 23 co-filers$25.0MSapphire Group, LLCNov 2022 · 23 co-filers$25.0MBetr Holdings, Inc.Nov 2022 · 23 co-filers$26.5MBetr Holdings, Inc.Nov 2022 · 23 co-filers$31.3M Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Daniel in the interactive graph →