The Holbrook Team
Jim Patterson
President | CEO


Jim graduated from the University of Utah, with a B.S. in Mechanical Engineering. Licensed Professional Engineer in California and Utah. Served 6 years in the US Army Reserves. Consulting & Plant Engineering for 8 years. Joined Holbrook & Assoc. in Feb. 1982. Active member of ASHRAE serving in many officer positions, including Chapter President & CRC Chair. Sports & outdoor activities including skiing & hiking are Jim’s passions outside of work. Served on Health South Advisory Board and other local organizations.

Ronda Engstrom
Sr Mechanical Engineer


Ronda received her BS in Mechanical Engineering from the University of Utah. She was a project and personnel manager with Marley Cooling Technologies for 7 years. Ronda is an active member of ASHRAE, and is currently the President Elect of the Utah Chapter. She joined Holbrook & Assoc. in July, 2001.

Ryan Patterson
VP Sales | Manager


Ryan graduated from Westminster College in 2014 with a BS in Business Administration. His previous experience includes a technical college diploma, a working background in general mechanical & electrical systems, and 8 years of inside sales & customer service experience with a fortune 500 company. Ryan is currently serving as a Committee Chair for the local Utah ASHRAE Chapter and has served as President of the Downtowners Toastmasters Group. In his free time, Ryan enjoys spending time with his Chocolate Lab, hiking and camping either around town or up in the foothills . Ryan Joined Holbrook & Assoc., Inc. in April 2005.

Jennifer Anderson
Accounting Manager


Jennifer graduated from the University of Utah in 1990 with a BS in Behavioral Science & Health. Certified as a Professional Bookkeeper and Quickbooks Specialist. In her free time she enjoys cooking and hiking. She joined Holbrook & Associates in November 2006.

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