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Theo founded Interface Design and Development (IDD) in 1993 to provide comprehensive consulting, education, and seminars on software and Web user experience (UX) design and usability. Theo's 20 years of experience in UX design, user interface architecture and usability testing, has made him a well-know and well-respected consultant.

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Theo Mandel Questions

Theo Mandel is based in Scottsdale, Arizona.

The NAICS codes for Theo Mandel are [5414, 54, 541, 54143].

The SIC codes for Theo Mandel are [73, 733].

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