| Company | Address, phone, e-mail | City | State | |
|---|---|---|---|---|
 | Method Homes | 2921 Eastlake Ave. E., Seattle, WA 98102 Phone 206-789-5553 Send Email | Seattle | Washington |
 | Modular Space Corporation | 19432 East Valley Hwy Kent WA 98032 Phone 253-395-0301 Send Email | Seattle | Washington |
 | Nashua Homes of Idaho | P.O. Box 170008 Boise, Idaho 83717-0008 Phone 208-345-0222 | Boise | Idaho |