- W. L. Wilson & Co.2
- W. M. Buchanan1
- W. N. Huguley & Co. Bankers1
- W. N. Pelton & Co.1
- W. S. Tyler Wire Works1
- W. T. Fitzgerald & Co.1
- W. W. Gavitt & Co.1
- W. W. Harper Company1
- W.P. Fuller & Co.4
- W.S. Nott Company1
- Waddel Wooden Ware Works1
- Wadhams Oil & Grease Co.1
- Wadsworth Bros. & Howland1
- Wadsworth, Howland & Co.4
- Walbridge & Co.1
- Waldorf-Astoria3
- Walker Bros. & Hardy1
- Walker Bros. Wholesale Dealers, Importers, Jobbers1
- Walker Stetson Company2
- Walker, Stetson Sawyer Co.1
- Walker, Stratman & Co.1
- Wallace Bank and Trust Company1
- Walter Brewing Co.1
- Walter Heywood Chair Co.1
- Walton, Whann & Co.1
- Walworth M'f'g Co.1
- Ward & Logan1
- Ward, Anderson & Co.1
- Ward, Leonard & Co.2
- Ward-Kent Company1
- Ware Pratt Company1
- Warren National Bank1
- Warsaw Salt Co.1
- Washburn & Moen M'F'G Co.1
- Washburn-Crosby Co.1
- Wason Manufacturing Company1
- Waterloo Wagon Co. Limited1
- Waverly Oil Works Co.1
- Weatherby, Knous & Pelton1
- Webb Brothers1
- Webster & Bixby1
- Wechsler and Abraham2
- Weideman-Fries Co.1
- Weir Plow Company1
- Wellington Bros. & Co.1
- Wells & Richardson Co.1
- Wells, Higman Company1
- West Hotel2
- West Philadelphia Passenger Railway Company2
- Westerman & Co.1
- Western Lime Co.1
- Western Reserve Woolen Co.1
- Westinghouse Co.1
- Wetherill & Brother3
- Wheatley & Ansley1
- Wheeling Crown Stogies1
- Whitcomb Metallic Bedstead Co.1
- White Sewing Machine Company1
- White, Corbin & Co.1
- Whitford Aldrich & Co.2