A Digital Interactive Company

We are builders of websites, online applications, iPhone + Android apps, and digital products. We are thinkers who share ideas and collaborate in the web, mobile media and creative development spaces. We believe in contributing great ideas and strategic solutions.

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dan merfeld

Dan Merfeld | Founder + CEO


Dan Merfeld is the founder of TheoryThree Interactive and President of Design Madison. His work leverages emerging technologies to solve complex needs. With a mix of both creative talent and programming ability, Merfeld and his team build mobile apps and websites that are innovative and purposeful.

Merfeld has worked for such companies as American Family Insurance, American Express, Bonobos, Case Construction, Evco Plastics, Echo Carving, Guild.com, Kohl's Corporation, Raven Software, The State of Wisconsin, among others.

In-Business Magazine recognized Dan as one of Madison's "40 under 40" top professionals in 2006.

ryan hall

Ryan Hall | Partner + CDO


Ryan is a web designer at heart. He believes that user experience is at the heart of all successful interface design. His work represents an execution of well-thoughout-out, elegant solutions that are both inviting and playful to use.

For more than seven years now, Ryan has been helping brands find their voice and stand out online. He firmly believes that a brand is more than a design, It's an emotional evoking story of where you've been and where you're heading.

He is always on the search for his next creative challenge.

What We Do

Digital Development

  • Prototyping
  • Front-end Programming
  • Back-end Programming
  • E-Commerce Systems
  • Content Management Systems
    (Custom / 3rd Party)
  • Native Mobile App Development
    (iOS, Android, Web)
  • Custom jQuery Plugins
  • Testing / Deployment

User Experience

  • Interface Design
  • UX Design
  • Mobile App Design
  • Responsive Design
  • Accessibility Testing / Reporting

Digital Marketing Products

  • Social Network Integration
  • Promotional Microsites
  • Promotional Mobile Apps
  • E-Mail Campaigns
  • Point of Purchase Kiosks