16 selected
- Not filled in
- W. Müllhaupt & Sohn
- Walsall Security Printers (WSP)
- Waterlow & Sons (1810-1961)
- Waterlow Brothers & Layton (1877-1920)
- WDZ (WertDruckZentrum [Bonn, Germany])
- Weddle, T. Michael
- Wegener
- Welzel
- WertDruckZentrum [Bonn, Germany] (WDZ)
- Wertpapierdruckerei [Leipzig, Germany] (WPL)
- Wertzeichendruckerei PTT (1930-2002) [Schweiz] (PTT Stamp Printing Works)
- Westermann
- Whitehead, Morris & Company Limited, London (1857-)
- Wiko [Czechoslovakia]
- WPL (Wertpapierdruckerei [Leipzig, Germany])
- WSP (Walsall Security Printers)