Hello, Seattle!

Carbon Five Seattle

Carbon Five is a digital product development consultancy. We partner with our clients to create exceptional products and grow effective teams. Learn more about us and our work.

100 South King St, Ste 570B
Seattle, WA 98104

About Carbon Five Seattle

Carbon Five Seattle takes the cake for most musicians and jugglers in the office at any given moment. We like to grab sandwiches from any of the local delis and take it over to Occidental Square for some outdoor eating. Our coffee is locally roasted and delivered via bicycle — very Seattle. We’re also proud to be home to the Cheez-It salads and water taxi commuters.

Meet the Seattle Management Team

Matt Sullivan
Matt Sullivan
General Manager, Seattle

We’re pretty handy.*


  • Ruby on Rails
  • Elixir/Phoenix
  • iOS (Obj C & Swift)
  • Java & Android
  • React/React Native
  • Node.js, Python & Scala
  • Technical Leadership


  • Product Design
  • Visual Design
  • Brand Identity
  • User Experience
  • Prototyping
  • User Testing
  • Content Strategy


  • Agile Team Management
  • Process Coaching
  • Experiment Design
  • Product Validation
  • Data Strategy
  • Product Research
  • Roadmapping

*Not on the list? Give us a shout. We’ve probably already given it a spin.

Work with us