Contact Us

Our locations in downtown Bellevue, Seattle, and Spokane allow us to provide our clients with quick response time and immediate access to our staff for projects throughout Washington.

Osborn Consulting, Inc. Headquarters
1800 112th Avenue Northeast
Suite 220E

Bellevue, WA 98004
Telephone: (425) 451-4009

Seattle Office
1402 3rd Avenue
Suite 415
Seattle, WA 98101
Telephone: (206) 628-9133

Spokane Office
101 S Stevens Street
Suite 103
Spokane, WA 99201
Telephone: (509) 867-3654

Bellingham Office
1317 Commercial Street
Suite 201
Bellingham, WA 98225
Telephone: (360) 354-9989

Administrative Inquiries

General Information:
[email protected]

[email protected]

Contracts: Tarelle Osborn
[email protected]

Marketing: Madison Pearson
[email protected]

Information Technology: Richard Herrman
[email protected]

Human Resources: Alissa Grieves
[email protected] 



Project Inquiries

Design Build / Transportation: Deepa Mungasavalli
[email protected]

Modeling / Stormwater Management: Laura Ruppert
[email protected]

Utilities / Green Stormwater Infrastructure: Robert Parish
[email protected]

Landscape Architecture / Urban Design: Liz Browning
[email protected]