W
- Waitrose – Wallace WAITe and Arthur ROSE
- Walgreens – Charles Rudolph Walgreen
- Wal-Mart – Sam Walton
- Walkinshaw Racing – Tom Walkinshaw
- The Walt Disney Company – Walt Disney
- Walter Wolf Racing – Walter Wolf
- Wang Laboratories – An Wang
- Warburtons – Ellen and Thomas Warburton
- Warner Bros. – Jack Warner, Sam Warner, Harold Warner, and Albert Warner
- W.B. Mason – William Betts Mason
- Wegmans – John and Walter Wegman
- Wells Fargo – Henry Wells and William Fargo
- Wendy's – Dave Thomas' daughter Melinda "Wendy" Thomas
- Weslake – Harry Weslake
- Westinghouse Electric – George Westinghouse
- W H Smith – William Henry Smith
- Wiesmann – Martin and Friedhelm Wiesmann
- Wilkinson – James Kemsey Wilkinson
- Williams Manufacturing Company, (to) Williams Electronics – see WMS Industries
- Williams Grand Prix Engineering – Frank Williams
- Winchester, Winchester Repeating Arms - Oliver Winchester
- Winning Appliances - John Winning and the Winning Family
- WMS Industries, WMS Gaming – Harry E. WilliaMS
- Wood Brothers Racing – Glen, Leonard, Delano, Clay, and Ray Lee Wood
- W. R. Grace and Company – William Russell Grace
- Wright Company, Wright Aeronautical (to Wright-Martin) – Orville and Wilbur Wright
- Wrigley Company – William Wrigley Jr.
- W. W. Norton – William Warder Norton
Read more about this topic: List Of Companies Named After People