Berkshire Hathaway is the publicly traded corporate conglomerate that Warren Buffett built as a holding company for his investment portfolio of stocks and for the companies he acquired in full. It gets more difficult for him to continue to find companies that are big enough to be meaningful to his portfolio and Berkshire due to the size it has grown to. 

Berkshire Hathaway Inc.’s cash position made a record in the third quarter of 2019, as Warren Buffett continues to look for good companies he can acquire for a great price that are big enough to be meaningful investments for his corporate conglomerate. 

Berkshire Hathaway held $128 billion in cash and short-term U.S. Treasuries as of Sept. 30, 2019. Adding $6 billion in cash to their $122 billion from the end of the second quarter of 2019.

Berkshire Hathaway current operating subsidiaries:

Acme Brick Company
AltaLink
Ben Bridge Jeweler
Benjamin Moore & Co.
Berkadia
Berkshire Hathaway Assurance
Berkshire Hathaway Automotive
Berkshire Hathaway Energy
BoatUS Insurance
Borsheim’s Fine Jewelry
Brooks Sports
The Buffalo News
BNSF Railway Company
Business Wire
Cavalier Homes
Central States Indemnity
Charter Brokerage
Clayton Homes
CORT Business Services
CTB Inc.
Dairy Queen
Duracell
Ebby Halliday Companies
Fechheimer Brothers Company
FlightSafety International
Forest River
Fruit of the Loom
Garanimals
GEICO
General Re
Helzberg Diamonds
H.H. Brown Shoe Group
International Metalworking Companies (IMC)
Johns Manville Materials and Construction
Jordan’s Furniture
Justin Brands Clothing
Kansas Bankers Surety Company
Kern River Pipeline
Larson-Juhl
Louis Motor
Lubrizol
Marmon Group
McLane Company
Medical Protective
MiTek Materials and Construction
National Indemnity Company
Nebraska Furniture Mart
NetJets
NetJets Europe
Northern Natural Gas
NV Energy
Omaha World-Herald
Oriental Trading Company
PacifiCorp
Pampered Chef
Pilot Flying J
Precision Castparts Corp.
Precision Steel Warehouse, Inc.
RC Willey Home Furnishings
Richline Group
Russell Brands
Scott Fetzer Company
See’s Candies
SE Homes
Shaw Industries
Star Furniture
TTI, Inc.
United States Liability Insurance Group
Wesco Financial
WPLG-TV
XTRA Lease

Berkshire Hathaway’s current minority holdings that surpass SEC thresholds:
Amazon
American Airlines
American Express
Apple
Axalta Coating Systems
Bank of America
Bank of New York Mellon Corp
Charter Communications, Inc.
Costco Wholesale Corporation
Delta Air Lines, Inc.
DaVita Inc.
General Motors
Goldman Sachs
JPMorgan Chase & Co.
Johnson & Johnson
The Coca-Cola Company
The Kraft Heinz Company
Liberty Global A Class
Liberty Global C Class
Liberty Latin America Ltd Class A
Liberty Latin Latin America Ltd Class C
Liberty Sirius XM Group Series A
Liberty Sirius XM Group Series C
Southwest Airlines Co
Mastercard
Moodys Corp
Mondelēz International
M&T Bank Corp
Procter & Gamble Co
PNC Financial Services Group Inc.
Phillips 66
RBL Bank
Restaurant Brands International
Red Hat Inc.
Sirius XM Holdings Inc.
StoneCo Ltd.
Store Capital Corp.
Suncor Energy Inc.
Synchrony Financial
Teva Pharmaceutical Industries Ltd
Torchmark Corporation
Travelers Companies Inc
United Continental Holdings Inc.
United Parcel Service (UPS)
U.S. Bancorp
Visa Inc
Verisign Inc
Verizon Communications
Wells Fargo and Co