MBT Firm Overview MBT Architecture and Interiors is a full services architecture, planning and interiors firm of 93 people with offices in Seattle and San Francisco. We have a 47 year history in the master planning, programming and design of complex buildings. MBT has achieved national recognition for the design of buildings through national awards and publications. These include four projects honored as Laboratory of the Year in the past 18 years in the national R & D Magazine program, several national and regional AIA awards, and a national GSA Design Citation for the US Geological Survey Vincent E. McKelvey Building.