- Irving Place Associates3
- Irving Seelig and Son2
- Irvmar Realty Corp.1
- Irvson Realty Corp.1
- Isaac D. Dana1
- Iser, Gustave W.7
- Island City Bank1
- Ithaca Street Apartments Co.1
- Iver Johnson Sporting Goods Co.1
- J. & G. Lippmann3
- J. B. Barnaby Co.1
- J. B. Plummer & Co.1
- J. B. Shannon & Sons1
- J. C. Johnson & Co.2
- J. Dickson & Bro.1
- J. Dobbins1
- J. E. Lonergan & Co.1
- J. E. Oppenheimer1
- J. F. Bumstead & Co.1
- J. F. Dietz & Co.1
- J. F. Ryder's Art Galleries1
- J. Fitzpatrick & Co.1
- J. Fortune & Co.1
- J. G. Smith & Sons1
- J. Griffiths1
- J. H. C. Petersen's Sons1
- J. H. Koppelman & Co.1
- J. H. Newbauer & Co.1
- J. Hartigan1
- J. J. Beals & Co.1
- J. K. & B. Sears & Co.1
- J. Klee & Brother1
- J. Knabb & Co.1
- J. L. Properties Inc.1
- J. M. Porter1
- J. Maury Dove1
- J. P. Donaldson Co.1
- J. P. Huntoon3
- J. R. Bigelow & Co.1
- J. R. Booth1
- J. R. Westlake & Bro.1
- J. Redcliff1
- J. S. Phelps & Co.1
- J. T. & A. Hamilton2
- J. V. Fletcher1
- J. W. Beltz & Son's Co.1
- J. W. Dunning & Co.1
- J. W. Fiske1
- J. W. Lyon & Co.1
- J.A. Fay & Egan Co.1
- J.B. Lippincott & Co.2
- J.C. and M.G. Mayer1
- J.D. Robilotto Co., Inc.1
- J.E. Watson, Inc.1
- J.F. Cahill and Co., Inc.2
- J.G. Haft and Co., Inc.12
- J.H. Taylor Construction Co., Inc.3
- J.H. Taylor Management Co., Inc.7
- J.I. Sopher and Co., Inc.28
- J.P. Lieberman and Son, Inc.2