- Rich Realty Co.1
- Richardson1
- Riker and Co., Inc.5
- Ritz-Carlton Hotel Co.6
- Riverbend Sales Co., Inc.1
- Roberts, Clifford C.5
- Robotti, Peter1
- Rockland Realty1
- Rockrose Development Corp.20
- Rodal Realty Corp.14
- Ronibar Realty Corp.5
- Rose, Bennett2
- Roseglass Realty1
- Rosenbloom, Arthur2
- Rosenfeld and Herring1
- Rosenthal, J. Harvey4
- Rothstein, Morris14
- Roy-Al Co.1
- Royal Management Corp.2
- Royco Development1
- Ruban Realty Corp.1
- Rudin Management Co., Inc.138
- Rudin, Samuel41
- Ruf Realties, Inc.1
- S.J. Landau Corp.4
- S.M. Siegel Management Co.1
- S.N. Petchers1
- SR8
- Sabog Realty Corp.1
- Sackman Enterprises, Inc.3
- Sailors Snug Harbor2
- Salamone Brothers2
- Sam J. Kellner and Sons, Inc.4
- Sam Minskoff and Sons23
- Samuel A. Herzog Buiding Co., Inc.1
- Samuel Derfner and Sons1
- Savoy Fifth Avenue Corp.1
- Schnurmacher Bros.4
- Schofield, E.1
- Schulman, Peter3
- Schuyler, Rollins Corp.1
- Schwartz, Edward1
- Seaman and Prendergast3
- Secoles, J. J.4
- Second Gotham Corp.3
- Seconset Corp.3
- Securitad Associates1
- Seven Thirty Park Avenue Corp.3
- Seventh Chelsea Corp.1
- Shachnow and Brown, Inc.1
- Shakbro Realty Corp.4
- Shapiro, Romie1
- Shapol Construction Corp.1
- Sharp and Nassoit, Inc.19
- Shenk Realty Construction Corp.1
- Sheppard-Pollak, Inc.1
- Shergrove Realty Corp.1
- Sherman, Murray1
- Sickles Garden, Inc.1
- Sidney Fetner Associates, Inc.1