Invisible to any 13F

Private Companies

796 private companies that the researched set holds stakes in. No 13F reports any of them, which is why a register built from 13F filings cannot see them and why these pages exist at all. Each one lists its disclosed holders with the filing behind every figure.

Held by more than one researched company

Anthropic PBCheld byAmazon.com, Inc., Alphabet Inc., Microsoft, Micron Technology$314.7bn
TTX Companyheld byUnion Pacific Corporation, CSX Corporation, Norfolk Southern Corporation$3.06bn
The Options Clearing Corporation (OCC)held byCboe Global Markets, Inc., Intercontinental Exchange, Inc., Nasdaq, Inc.$300,000
OpenAI Group PBCheld byAmazon.com, Inc., Microsoft$28.7bn
Chevron Phillips Chemical Company LLCheld byPhillips 66, Chevron Corporation$7.90bn
Conrailheld byNorfolk Southern Corporation, CSX Corporation$3.20bn
Southern Natural Gas Company, L.L.C. (SNG)held byKinder Morgan, Inc., The Southern Company$2.88bn
American Transmission Company LLCheld byWEC Energy Group, Inc., Alliant Energy Corporation$2.40bn
S&P Dow Jones Indices LLCheld byCME Group Inc., S&P Global Inc.$1.40bn
United Launch Alliance, L.L.C.held byLockheed Martin Corporation, The Boeing Company$1.20bn
Overland Pass Pipeline Company LLCheld byONEOK, Inc., The Williams Companies, Inc.$767m
Amplify Cell Technologiesheld byPACCAR Inc, Cummins Inc.$718m
Systems on Silicon Manufacturing Company Pte. Ltd. (SSMC)held byTaiwan Semiconductor Manufacturing Company Limited, NXP Semiconductors N.V.$396m
Texas City Logistics LLCheld byMarathon Petroleum Corporation, ONEOK, Inc.$325m
Floating Docks S. de RL.held byCarnival Corporation, Royal Caribbean Cruises Ltd.$258m
Laurel Mountain Midstream, LLCheld byThe Williams Companies, Inc., EQT Corporation$206m
Tractor Beverages, Inc.held byKeurig Dr Pepper Inc., Chipotle Mexican Grill, Inc.$75m
Grand Bahama Shipyard Ltd.held byCarnival Corporation, Royal Caribbean Cruises Ltd.$27m
ATC Holdco LLCheld byWEC Energy Group, Inc., Alliant Energy Corporation$23m
Grid Growth Ventures, LLCheld byAmerican Electric Power Company, Inc., FirstEnergy Corp.$0
Prairie Wind Transmission, LLCheld byAmerican Electric Power Company, Inc., Evergy, Inc.not sized
Terminal de Grãos Ponta da Montanha S.A.held byArcher-Daniels-Midland Company, Bunge Global SAnot sized
Valley Link Transmission Company, LLCheld byAmerican Electric Power Company, Inc., FirstEnergy Corp.not sized

Every private company covered, most widely held first:

Anthropic PBC4 TTX Company3 The Options Clearing Corporation (OCC)3 OpenAI Group PBC2 Chevron Phillips Chemical Company LLC2 Conrail2 Southern Natural Gas Company, L.L.C. (SNG)2 American Transmission Company LLC2 S&P Dow Jones Indices LLC2 United Launch Alliance, L.L.C.2 Overland Pass Pipeline Company LLC2 Amplify Cell Technologies2 Systems on Silicon Manufacturing Company Pte. Ltd. (SSMC)2 Texas City Logistics LLC2 Floating Docks S. de RL.2 Laurel Mountain Midstream, LLC2 Tractor Beverages, Inc.2 Grand Bahama Shipyard Ltd.2 ATC Holdco LLC2 Grid Growth Ventures, LLC2 Prairie Wind Transmission, LLC2 Terminal de Grãos Ponta da Montanha S.A.2 Valley Link Transmission Company, LLC2 Oncor Electric Delivery Company LLC (via Oncor Electric Delivery Holdings Company LLC)1 Scale AI, Inc.1 Jio Platforms Limited1 Atairos Group, Inc.1 Australia Pacific LNG Pty Ltd. (APLNG)1 Metronet1 Mountain Valley Pipeline, LLC - Series A (MVP Mainline)1 Prologis Targeted U.S. Logistics Fund, L.P.1 Altera Corporation1 Global Unichip Corporation (GUC)1 Jazan Integrated Gasification and Power Company (JIGPC)1 Hyperion data center joint venture (Louisiana data center campus, with funds managed by Blue Owl Capital)1 Kimberly-Clark de Mexico, S.A.B. de C.V. (KCM)1 Mosaic Health (Augusta Topco Holdings, L.P.)1 Appalachia Midstream Investments (Bradford Supply Hub and Marcellus South gathering systems)1 Prologis European Logistics Partners1 Community Oncology Revitalization Enterprise Ventures, LLC (Core Ventures)1

Showing the 40 most widely held private companies. , or reach any of them through search.