- Twin City Envelope Inc
- Typed Letters Corp
- Unisource
- Unisource
- United Envelope
- United Envelope
- Victoria Envelope & Printing
- Western States Envelope
- Western States Envelope Co
- Western States Envelope CO
- Westvaco Corp
- Westvaco Corp
- Westvaco Corp Envelope Prods
- Westvaco Corp Envelope Prods
- Westvaco Envelope Div
- Westvaco Envelope Products
- Williamhoue
- Williamhouse
- Williamhouse Of Wisconsin
- Wisco Envelope Co
- Wisco Envelope Co
- Wolf Detroit Envelope Co
- Wolf Detroit Envelope Co
- Wolf Detroit Envelope Co
- Woodstock Industries Inc
- Woodstock Industries Inc
- Worcester Envelope Co
- Worcester Envelope Co
- Xpedx
- Yankee & Co
- Your Name Printing
