Products
- Hobart Manufacturing Company
- Hoboken Ferry Company
- Hoboken Railroad and Terminal Company
- Hocking Valley Railway Company
- Hoffmann Laboratories
- Holiday Inns, Inc.
- Holland Hotel Company (Fishkill Landing, Beacon, New York)
- Holland's Far-East Tea, Coffee and Cocoa Corporation
- Hollywood Famous Pictures, Inc.
- Hollywood Hospital Company (Signed by Edwin Obadiah Palmer)
- Holyoke Mining Company
- Home Insurance Company
- Homer Wagon Company, Limited of Cortland, New York
- Homestake Mining Company
- Homestake Mining Company
- Hoosac Tunnel and Mining Company
- Hopkins Consolidated Oil Corporation
- Horne Tireless Tire Co.
- Hospital Corporation of America
- Hotel Corporation of America
- Housatonic Rail Road Company
- Housatonic Railroad Company
- Housatonic Railroad Company
- Houston and Great Northern Railroad Company (Signed by Galusha Grow)
- Houston Oil Company of Texas
- Houston, Tap and Brazoria Railway Company
- Howard Johnson Company
- Howard Music Company
- Howard Stores Corporation
- Howe Rubber Corporation
- Hubbard Ice Company
- Hubbard-Elliott Copper Company (Alaska)
- Hubbard-Elliott Copper Mines Development Company of Alaska
- Huck Finn, Inc.
- Hudson & Manhattan Railroad Company
- Hudson & Manhattan Railroad Company
- Hudson & Manhattan Railroad Company
- Hudson & Manhattan Railroad Company
- Hudson and Middlesex Telephone and Telegraph Company
- Hudson Bay Mining and Smelting Co., Ltd.
- Hudson Brick and Cement Company (Kingston, New York)
- Hudson Car Company (Hoboken, New Jersey)
- Hudson Motor Car Company
- Hudson Navigation Company (Searchlight Line)
- Hudson River Boot and Shoe Manufacturing Company (Poughkeepsie, New York)
- Hudson River Navigation Corporation
- Hudson River Slate Company
- Hudson Valley Railway Company
- Hughes & Hatcher, Inc.
- Huntco Inc. (Steel Company, Brought Down by Enron)
- Huntingdon & Broad Top Mountain Railroad & Coal Company (Issued to Charles D. Barney)
- Hupp Automatic Mail Exchange Company
- Huston Ship's Berth Company (Boston, Massachusetts)
- Hutchinson and Southern Railway Company
- Hydraulic Steel Company
- Hygrade Lamp Company (Sylvania)
- I. Magnin & Co.
- I. Magnin & Co.
- I. Magnin & Co.
- I. Magnin & Co. (Certificate #1)
- I. Magnin & Co. (Certificate #1)
- Iaeger and Southern Railway Company
- Idaho & Washington Northern Railroad
- Ideal Steel Wheel Co., Inc.
- Illinois Bell Telephone Company
- Illinois Central Rail Road Company
- Illinois Central Rail-Road Company (Signed by Robert Schuyler)
- Illinois Central Railroad Company
- Illinois Central Railroad Company
- Illinois Central Railroad Company
- Illinois Pacific Glass Corporation
- Illinois Terminal Railroad Company
- Illinois Thoroughbred Horse Owners' and Breeders' Association
- Illinois Traction Company
- Illinois Traction Company
- Illinois Traction Company
- Illinois Zinc Company
- Imperial Bottle Cap & Machine Co. (Signed by Jacob Hook)
- Imperial Oil Limited
- Imperial Storage Battery Company
- Independent Airless Tire Company
- Indiana Bell Telephone Company, Incorporated
- Indiana Bell Telephone Company, Incorporated
- Indiana Bell Telephone Company, Incorporated
- Indiana Bell Telephone Company, Incorporated
- Indiana Bell Telephone Company, Incorporated
- Indiana Coal and Railway Company (Early Rail Fraud)
- Indiana Harbor Belt Railroad Company
- Indiana, Decatur and Western Railway Company
- Indiana, Illinois and Iowa Railroad Company
- Indiana, Illinois and Iowa Railroad Company
- Indiana, Illinois and Iowa Railroad Company
- Indianapolis & St. Louis Railway Company
- Indianapolis and Northwestern Traction Company
- Indianapolis Southern Railway
- Indianapolis, Crawfordsville and Danville Electric Railway Company
- Inflight Motion Pictures, Inc.
- Inland Steel Company
- Insilco Corporation
- Insull Utility Investments, Inc.