Contract Design Associates (CDA) has been a leading office furniture dealership in the Northwest, founded by Bruce and Jill Butterworth in Spokane, WA. CDA has grown to service customers throughout the Pacific Northwest.

In 1984, CDA became an authorized Herman Miller dealer servicing 32 counties in Eastern Washington, Northern Idaho and Western Montana.

CDA expanded its reach by opening its second office in Missoula, MT in 2012. Upon the retirement of Bruce and Jill in 2017, the dealership transitioned with Gwen Guenzel and Jared Butterworth as the Principals of CDA.