About About

Welcome to McQuillen Interactive

McQuillen Interactive is an interactive design company. I use interactive design to help you make complex things clear.

Please contact me if

  • You want a usable and efficient application to help your users complete complex tasks
  • You want to demonstrate visually how something works
  • You need to visualize some interesting data
  • You want to educate users through interactive simulations
  • You want a desktop application that's easy to install, easy to use and easy to run on Mac, Windows and Linux



I build desktop and web applications with Adobe Flash, Flex and Ruby on Rails.

  • Desktop applications in Adobe AIR for Mac, Linux and Windows
  • Web-applications in Adobe Flex and Flash
  • Interactive presentations
  • E-Learning simulations

I handle each phase of development, including:

  • Requirements gathering and user interviews
  • UI design
  • Application design
  • Application development
  • Usability testing

I like to work iteratively and encourage clients to take this development approach.

I provide these services with a concern for quality, an attention to detail, and a sense of humor.

Our Clients

Our clients deserve usable, efficient and effective solutions to their interactive problems. We don't disappoint. Here's what one client had to say about our work:

Daniel McQuillen's attention to detail as well as the ability to see the "big picture" allows him to produce excellent software. He has been wonderful to work with and hopefully we will be able to continue to work on our projects into the future."

Robin Mitchell
Windows and Envelope Materials Group
Lawrence Berkeley National Labs

Read more testimonials>>


McQuillen Interactive
email: info at mcquilleninteractive dot com

Latest News

COMFEN v5.1 under development

Aug 23, 2013 -- Fort Collins, CO

McQuillen Interactive is assisting Lawrence Berkeley National Lab in the development COMFEN 5.1. COMFEN is a desktop application that helps architects and engineers design more efficient buildings.

Read more about my past work on COMFEN >>

SimpleDiagrams : More than 60,000 downloads

Aug 23, 2013 -- Fort Collins, CO

SimpleDiagrams, a productivity tool created by McQuillen Interactive, has been downloaded and installed by more than 60,000 users since it's release in late 2009.