| Business | Phone |
| Envelope Converting Svc 6603 Ursula Pl S, Seattle 98108 | (206) 767-3653 |
| Mc Callum Print Group 4700 9th Ave Nw, Seattle 98107 | (206) 784-6892 |
| Seattle Envelope Co 4700 9th Ave Nw, Seattle 98107 | (206) 784-0904 |
| Ticket Envelope Co 4700 9th Ave Nw, Seattle 98107 | (206) 784-7266 |
| Wolfe Printing 9716 44th Ave Sw, Seattle 98136 | (206) 937-0677 |
| National Envelope Corp 18221 Andover Park W, Seattle 98188 | (206) 575-7774 |