- Tryon Park Development Corp.1
- Turner Associates1
- Turner Construction Co.4
- Two Sutton Place South, Inc.5
- Urban Company, Agents2
- Urban Housing Associates, Inc.4
- Uris Brothers17
- Valerian Holding Corp.1
- Van Dam Management Co., Inc.1
- Vandan Realty Corp.3
- Vendome Properties, Inc.1
- Villa Norma Realty Co.1
- Village Construction Corp.4
- Vought, Campbell, Ward, and Co.2
- W.E. Dean and Co.2
- W.K. Winston Co., Inc.1
- W.M. Cruikshank's Sons1
- WFJ Building Co.1
- WRB Holdings Corp.1
- Waitt-Haines Buiding Corp.2
- Wallace J. Grove Co.3
- Wallis, Melvin1
- Walter Russell, Inc.1
- Walter Scott and Co., Inc.2
- Walter and Samuels, Inc.6
- Washington Square Construction Corp.2
- Washington Square Management Corp.15
- Webb and Knapp Construction Corp.15
- Webb and Knapp, Inc.28
- Webb and Knapp-Alcoa First Avenue Development2
- Weiler, Jack D.8
- Weinbaum, William T.1
- Weisman, Norman E.1
- Weld and Butt, Inc.2
- West 218 Street Construction Corp.1
- Westerly Associates, Inc.1
- Westknob Realty Corp.1
- Westminster Properties, Ltd.20
- White, Harold B.2
- Whitecourt Construction Co.1
- Willetts, Frank2
- William A. White and Sons47
- William Alfred White, Inc.12
- Williams Real Estate Co., Inc.1
- Williams and Co.8
- Winboro Realty Corp.1
- Wingate Realty Co.5
- Winland Management Corp.1
- Winston, N.K.6
- Winston-Holzer Associates2
- Winter, Benjamin1
- Wm. B. May and Co.2
- Wolf and Macklowe Co., Inc.5
- Wonrep Holding Corp.2
- Wood, Dolson Co., Inc.59
- Woodner, Ian10
- Woods Management Co.1
- Worthington Whitehouse Co., Inc.1
- York Operating Corp.2
- Yorktown Management Co.1