- 831 Gerard Avenue Realty Corp.1
- 835 Ocean Avenue, Inc.1
- 8801 Shore Road Building Corp.2
- 88th and 148th Holding Corp.1
- 902 41st Street, Inc.1
- 909 East 29th Street Realty Corp.1
- 95th Street Construction Co., Inc.1
- A. Albani, Inc.1
- A. Holzer Associates1
- A. Pompa and Son1
- A. and A. Construction Corp.1
- A. and J. Kraut1
- A.B.C. Construction Corp.1
- A.B.C. Homes, Inc.3
- A.L. Lyon Co.1
- Aaron Green Co.7
- Aaronson and Heidrich2
- Abbott and Adams, Inc.2
- Abbott, Karl P.1
- Abingdon Court, Inc.1
- Academy Developers, Inc.1
- Ackerman, Frederick L.3
- Adams and Co. Real Estate2
- Addison Hall Inc.2
- Adelsohn, Edward M.1
- Adephi Homes, Inc.1
- Adler, Morris Bernard5
- Advice Realty1
- Ageloff, Samuel1
- Agol Realty Corp.1
- Alan H. Polkes Associates, Inc.1
- Albanese, Anthony A.1
- Albemarle Construction Corp.1
- Albemarle Gardens, Inc.1
- Alber Construction Corp.1
- Alberly Holding Corp.1
- Albert B. Ashforth, Inc.15
- Albini and Raddock2
- Albini, Louis V.6
- Alcor Realty Corp.2
- Alden Builders, Inc.1
- Alexander Wolf and Co., Inc.9
- Alfred Kaskel and Son4
- Algin Management Co.1
- Algon Realty Corp.1
- Allan H. Feinberg Associates1
- Alley Park Housing Corp.2
- Allou Associates1
- Alret Realty Corp.1
- Amal Realty1
- Amalgamated Meat Cutters and Butcher Workmen of North America, AFL-CIO2
- American Listings, Inc.1
- Ames Cunehan and Newman, Inc.1
- Anderson Avenue Park Plaza Corp.1
- Anderson and Bremer1
- Andrew Apartments Inc.1
- Angelo, G.1
- Anita Management Corp.1
- Ansie Realty Corp.1
- Anthony Campagna and Sons2