- J. W. Barker & Co.1
- J. W. Beltz & Son's Co.1
- J. W. Dunning & Co.1
- J. W. Paxson & Co.1
- J.A. Fay & Egan Co.4
- J.B. Lippincott & Co.2
- Jackson, Mandell & Daniell1
- Jacob Dold Packing Co.1
- Jacob Dux1
- Jacob Kreischer Capital City Steam Confectionery2
- Jacob L. Coles1
- James A. McCafferty & Sons Mfg. Co., Inc.1
- James A. McNally & Sons1
- James Baily & Son1
- James C. Lindsay Hardware Co.1
- James E. Boyd1
- James H. Prince Paint Co.1
- James L. Norris1
- James Reynolds Elevator Co.2
- James S. Barron & Co.1
- James S. Kirk and Company3
- James W. Miller1
- James W. Tufts1
- Janeway & Carpender3
- Janney-Semple-Hill & Co.1
- Jarecki Manufacturing Co.2
- Jay C. Wemple & Co.1
- Jewett & Root1
- Jewett and Sherman Co.3
- Jno. McKittrick & Co.1
- Jno. W. Ferrell Furniture Co.2
- Joel J. Baily & Co.2
- John B. Stetson Hat Company1
- John C. MacInnes Company1
- John C. Neemes & Co.1
- John C. Tucker & Co.1
- John C. Wiarda & Co.1
- John D. Chollar & Co.1
- John F. Stratton & Co.2
- John F. Stratton & Son1
- John G. Hodge & Co.1
- John G. Miller & Co.2
- John G. Myers1
- John H. Eddy & Co.1
- John H. Watson & Co.1
- John J. Quinn1
- John Lucas & Co.2
- John Norwood Company1
- John P. Squire & Company5
- John Pritzlaff Hardware Co.1
- John S. Naylor Co.1
- John Sexton & Co.1
- John Stock Sons1
- John T. Bailey & Co.1
- John W. Quincy1
- Johnston & Swartz1
- Johnston Ruffler Co.1
- Jordan Marsh Company1
- Jos W. Davis, Banker1
- Jos. Hafner1