- 381 Park Avenue Corp.1
- 39 Grammercy Park Group1
- 40 Central Park South Inc.1
- 410 Central Park West Corp.1
- 419 East 80th Street Corp.1
- 42 Thayer Street Corp.1
- 425 East 86th Street Corp.1
- 427 West 51 St. Co., Inc.1
- 430 Park Avenue Corp.2
- 445 West 34th Street Corp.1
- 454 Fort Washington Corp.1
- 47 Arden St. Corp.1
- 488 Madison Avenue, Inc.1
- 49th Street Properties Inc.2
- 50 Park Terrace West Corp.1
- 51 Fifth Avenue Corp.4
- 539 West End Avenue, Inc.1
- 55th Management Corp.1
- 55th Street Realty Corp.2
- 570 Fort Washington Avenue Corp.1
- 575 Fifth Associates5
- 578 Madison Avenue Corp.1
- 610 West 100th Street Corp.3
- 63rd Building Corp.1
- 68 East 96 St. Corp.1
- 72 Wall Street Corp.9
- 725 Realty Corp.1
- 729 West 186th Corp.1
- 72nd Street Properties, Inc.1
- 75 Central Park West Corp.2
- 750 Park Inc.2
- 784 Park Avenue Corp.11
- 80 Bennett Avenue Corp.1
- 800 Madison Avenue Corp.1
- 82nd Street Holding Corp.2
- 95th Street Construction Co., Inc.1
- 983 Park Ave. Corp., Inc.2
- A. Albani, Inc.1
- A. Holzer Associates6
- A. Karhan and Son, Inc.1
- A.M. Bing and Son Realty Corp.4
- AMIH Housing Services, Inc.1
- Aaron Green Co.13
- Abbott and Adams, Inc.1
- Abbott, Karl P.1
- Abingdon Court, Inc.1
- Ackman Brothers1
- Adams and Co. Real Estate2
- Addison Hall Inc.2
- Advice Realty1
- Ageloff, Samuel1
- Albert B. Ashforth, Inc.44
- Alexander Wolf and Co., Inc.1
- Algin Management Co.1
- Allou Associates1
- Alna Realty Corp.1
- Alsam Realty Corp.1
- Amal Realty1
- American Listings, Inc.1
- Ames Cunehan and Newman, Inc.1