OptimumG's consulting clients have included teams in racing series around the world, including:

• Australian V8 Supercar Championship
• American LeMans
• Grand American Rolex Sports Car Championship
• SCCA SPEED World Challenge
• Toyota Atlantic
• NASCAR

Worldwide clients include:

• Dunlop
• MoTeC
• Ferrari
• Michelin
• Daimler Chrysler
• Stone Brothers Racing
• Porsche Motorsport
• Derhaag Motorsports
• Vintage Racing Services
• Swansea Institute UK
• Brigham Young University
• Asiatech F1
• Elan Motorsports Technologies (Panoz)
• Drysdale Motorsports
• G&W Motorsports
• Super Nova Racing Ltd
• Team Oreca
• Ford Racing Operations
• Michelin F1
• Dynamic Suspensions
• The Strain Gauging Co. Ltd
• A.P.Racing
• Pagani Automobili
• Sachs
• Toyota F1