City of Seattle

King County

Co-op Members

The contract change for State Agencies does not affect your discount pricing. Mastermark is pleased to continue providing you with the same great product and service you are accustomed to receiving at your same low pricing.


Mastermark is committed to offering you the highest quality products in the industry while emphasizing preservation of natural resources. We strive to minimize the impact of technology on the environment.

We offer several ECO friendly options as well as ErgoSAFE® handles. Just look for the Green ECO Leaf symbol on our website to identify environmentally friendly products. Every stamp is good for over 100,000 impressions. Now you can order custom ECO, ErgoSAFE® and Notary stamp from one source. 

All Government Agencies and Co-op Members

City of Seattle, King County and Co-op Members

Washington State Agencies

As of November 1, 2011 Mastermark is no longer the State Contract Provider.  Please go to
and search for Contract 04511 for the current contract holder.

For all non contract Marking Products including our New ECO friendly Stamp Products and all your Namebadge, Nameplate and Interior Signage needs call our helpful customer service department for answers or additional information.

In Seattle dial

Outside of Seattle dial

Our Customer Service hours are
Monday to Friday
8:00am to 4:30pm
Pacific Time.

Give us a call!