Coffman Engineers, Inc. Coffman Engineers, Inc. Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Business & Professional Services >> Professional Services >> Green Technology Coffman Engineers, Inc. 10 N Post St, Ste 500Spokane, WA 99201 (509) 328-2994 Visit Site Member Since: 1984 Send a message to: Coffman Engineers, Inc. Your Name: Your Email: Subject: Message: (Date: 12/7/2023)