- Maystone Realty Corp.2
- McGrath, John P.7
- McMorrow Brothers, Inc.1
- McPherson, Inc.1
- Meenan, John J.1
- Memphis Downtown Associates13
- Memphis Uptown Associates13
- Metropolitan Life Insurance Co.2
- Meyberry Apartments, Inc.3
- Meyer and Steffens, Inc.2
- Meyer, George F.1
- Middle Income Housing Corp.1
- Miller, Alfred F.7
- Milstein, M.2
- Milton Barkin Management Corp.5
- Monroe A. Lawrence, Inc.2
- Mordecai, Benjamin1
- Morgan Apartments, Inc.3
- Morwitt Realty Corp.2
- Murray Hill Realty Co.3
- Murray Properties1
- Murray Sherman Corp.14
- N.A. Berwin and Co.5
- N.K. Winston and Co., Inc.14
- NRK Management Corp.5
- Naglewood Building Corp.1
- Napoli and Molino Associates1
- Narpon Realty Corp.1
- Nassoit, Joseph H.2
- Nassoit-Sulzberger and Co., Inc.23
- Nehrig Brothers, Inc.6
- Nelson, Peter3
- Nelwin Realty Corp.1
- New York (N.Y.). Housing and Development Administration7
- New York (N.Y.). Housing and Redevelopment Board1
- New York (N.Y.). Housing and Redevelopment Board. Project Services Division12
- New York Land Co.2
- New York Life Insurance Co.2
- New York Partnership1
- New York State Urban Development Corporation1
- Newbo Realty Corp.1
- Newmark and Co.11
- Next City Corp.14
- Nine West Corp.1
- Normandie Building Corp.1
- Northcrest Realty1
- O.A. Robertson, Inc.1
- O.O. Offenberg and Co.1
- OSB Building Corp.1
- Olinville Gardens, Inc.1
- Omnia Properties, Inc.2
- One Jane Street Inc.2
- Orak Realty Corp.1
- Orion Building Corp.2
- Orza, A.Q.4
- Oshlag Construction Co.1
- Oshlag, Harold2
- Osias Construction Corp.1
- Overlook Equities, Inc.1
- Overlook Realty Corp.1