Tiffany Construction Company

Meet the Team

Kathleen Bonanno Project Engineer, Estimator

Experience: 17 Years
Years with Tiffany Construction: 7 Years

Kathleen currently works as a Project Engineer and Estimator and has been with Tiffany Construction for two years.  She has worked with heavy civil contractors for ten years managing projects for ADOT, the City of Phoenix and various municipalities and private owners.  Kathleen is also an Adjunct Professor in Engineering Technology through the Arizona chapter of the Associated General Contractors where she teaches construction math and civil blueprint reading. She earned a Master’s Degree from the Del E. Webb School of Construction and an undergraduate degree in Finance from the University of Arizona. 


Shawn Vermillion Project Manager, IT Coordinator

Experience: 20 Years
Years with Tiffany Construction: 12 Years

Shawn joined Tiffany Construction in 2007. 
He has 15+ years experience in CAD design and surface modeling on various software platforms. 
He is the resident technology expert handling Tiffany's computers, network, software, Topcon GPS equipment, volumetric and material quantity calculations.

Ryan Adams Project Engineer

Experience: 2 Years
Years with Tiffany Construction: 1 Year

A 2017 Northern Arizona University graduate with a Bachelor of Science in Construction Management, Ryan spent his first year out of college working for Granite Construction in Tucson. He then joined Tiffany Construction in 2018 as a Project Engineer in the Sedona office where he assists Herb Tiffany and Mike Garrison with the day to day operations of various projects.


Randy Henderson Equipment Manager

Experience: 39 Years
Years with Tiffany Construction: 4 Years


Randy began his construction career with TCC over 30 years ago as a parts runner and now has returned to oversee all equipment aquisitions, repairs and maintenance. 




Tammy Rickman Accounts Payable

Experience: 25
Years with Tiffany Construction: 1 Year


Tammy and her family just recently moved to Arizona from California and recently joined the TCC Accounting Department as our

Accounts Payable contact. Tammy brings 25 years of accounting experience to the team, having worked in A/P, A/R and Payroll.

Tammy enjoys working in the construction industry and is excited to join the TCC Team.