Centralia - Chehalis Chamber of Commerce - They provides profiles of local business climate and community, phone directory for area services, links to some local businesses, searchable business data base. - http://www.chamberway.com/
NorthWest Aquifer Surveying, Inc. - Provides electroseismic technology to identify where to drill water wells. Serves the area within 150 miles of its office in Chehalis. - http://www.findwellwater.com/