Klarquist represents a broad range of clients, from solo inventors and mid-size companies, to some of the largest, most prestigious companies in the world.

A-dec, Inc. Oak Ridge National Laboratory/UT-Battelle
Amazon.com, Inc. Oregon Health & Science University
Boise Cascade Company Oregon State University
Centers for Disease Control and Prevention Pacific Northwest National Laboratory/Battelle
Daimler Trucks North America, LLC (Freightliner) Portland State University
Emory University Rutgers, The State University of New Jersey
General Electric Company (GE) Shaklee Corporation
Infosys Limited Taylor Made Golf Company, Inc.
Los Alamos National Security (LANS) TransluSense, LLC
Mentor Graphics Corporation Turner Broadcasting Systems, Inc. (TBS)
Microsoft Corporation University of Arizona
MWI Veterinary Supply Co. University of Idaho
National Institutes of Health University of Oregon
Nautilus, Inc. University of Pittsburgh
Nikon Corporation UVic Industry Partnerships, Inc.
 nLIGHT Corporation Ventana Medical Systems, Inc.
Norpac Foods, Inc. Washington State University