Given it's geographic location near the Canadian border, Bellingham Washington has a significant number of Canadian businesses. Some of these businesses are selling services and products directly to the local market in northern Washington State. Others are using the location as a U.S. distribution center that is still a close drive to their corporate headquaters just across the border in British Columbia. Some of these companies simply need a U.S. identity and maintain little else than a mailing address in Washington or maybe a small office. It is often quoted around Bellingham that taken as a whole, Canadian companies are the largest employer in the area. I have asked around and no one seems to know where this information comes from.
The Small Business Development Center has just announced that they are going to be studying the impact of Canadian owned companies in Whatcom County. Interestingly they are also going to be studying the impact of U.S. owned companies in British Columbia. This should be a fairly interesting study and hopefully it is made available to the public.