The Mark of Quality

UNIMARK is a full-service, Seattle-based Tenant Improvement and Commercial & Light Industrial Construction firm driven by the belief that when you build together, you simply build better. We have found that close internal and external collaboration, combined with the active engagement of company leadership, invariably leads to superior results.

Since 1953, our record of achieving excellence through teamwork has solidified our reputation as a trusted partner to a wide range of property owners, architects and corporate clients. The same qualities that made us the premier Tenant Improvement firm in downtown Seattle ensure excellence in all construction projects. We listen to our customers, attend to the details and provide a level of service that exceeds expectations.

Build Together - Build Better