Politics and Business magazines
- Wall Street Deli, Inc.
- Wallace Computer Services, Inc.
- Walsworth Publishing Company, Inc.
- Walton Monroe Mills, Inc.
- Wanadoo S.A.
- Warburtons Ltd
- Warner Communications Inc.
- Warner Music Group Corporation
- Warners' Stellian Inc.
- Warrantech Corporation
- Warrell Corporation
- Warwick Valley Telephone Company
- Wascana Energy Inc.
- Washington Federal, Inc.
- Washington Football, Inc.
- Washington Gas Light Company
- Washington Mutual, Inc.
- Washington National Corporation
- Washington Natural Gas Company
- Washington Scientific Industries, Inc.