Main Office: (602)264-0807
Dave Pearson, PE, LEED AP
David Pearson serves as President of the company his father started in 1969. Since 1985, Dave’s input and direction are instrumental to the maintenance of the company’s standard of excellence. His initial training in Electrical Design gives him a thorough understanding of the Electrical and Mechanical Interface requirements in the Engineering disciplines. Conceptualizing Building Systems and Costs are specialty areas where his abilities excel. Dave earned his Bachelor of Science, in Mechanical Engineering Degree from Northern Arizona University in 1978.
Jeff Ruthstrom, PE
Executive Vice President
Jeff Ruthstrom joined Pearson Engineering Associates, Inc. in 1995, bringing with him expertise in HVAC Systems Design, Plumbing Systems Design and Process Piping Systems Design. Jeff has 29 years of industry experience and serves as Executive Vice President of the company. His duties include Mechanical Production and Administrative Management. Jeff has been involved with major Commercial High-rise, Industrial, Healthcare, Educational and Military projects. Jeff received his Bachelor of Science Degree in Mechanical Engineering from Arizona State University in 1990.
Bob Willcoxson, PE
Senior Vice President
Bob Willcoxson joined Pearson Engineering Associates, Inc. in 2015 and has 39 years industry experience. Bob is a registered Mechanical Engineer, LEED AP and Serves as Senior Vice President of the company. He has extensive experience in Educational, Retail, Municipal, Commercial, Institutional, and Governmental projects.
Jeff Mostajabi, PE
Senior Vice President
Jeff Mostajabi has been with Pearson Engineering Associates, Inc. for 16 years. Jeff is a registered Electrical Engineer in numerous states. Jeff serves as a Senior Vice President of the company. His experience includes Commercial, Retail, Municipal, Education, and Industrial projects. He received his Bachelor of Science degree in Electrical Engineering from Oklahoma University in 1984.
Mike Pearson, PE
Mike Pearson serves as Vice President of Pearson Engineering Associates, Inc. Mike is a registered Electrical Engineer whose 50 year career has included positions as a Field Project Engineer and Operations Manager for Electrical Contracting Companies, Industrial Plant Engineer, Commissioning Agent, Forensic Specialist and Power Electronics Inventor. His experience includes a wide variety of projects including Multi-family, High-tech Industrial, Healthcare, and Commercial. Mike earned is Bachelor of Arts degree in English from Arizona State University in 1979.
Bob Ayersman joined Pearson Engineering Associates, Inc. in 2004, bringing with him expertise in General Contracting and Construction Project Management. Bob serves as Director of Business Development responsible for developing and maintaining client relationships. Bob received his Bachelor of Science degree in Construction Engineering from Arizona State University in 1982.
Robert G. Newton ,
Robert G. Newton serves as a Senior Electrical Designer at Pearson Engineering and has 36 years industry experience. His design experience includes Lighting, Power Distribution, Fire Alarm and Telecommunications. Rob provided technical sketches for the 1999 and 2002 “NEC Changes” publications by NFPA. He has completed a variety of Commercial, Industrial, Health Care and Educational Projects over his long career.
Mike Olson, FASPE
Mike Olson has been with Pearson Engineering Associates, Inc. for 23 years and has 45 years total experience in Plumbing Systems Design. His design experiences include Medical Gas Systems, High Pressure Steam Systems, and many Specialty Piping System Designs. Mike serves as the Senior Plumbing Designer for the company. Mike is a Certified Plumbing Designer (C.P.D) and a “Fellow” ASPE member who has been actively involved with the organization both locally and nationally for many years. Mike received his Associate of Arts Degree for North Dakota State School of Science and Technology in 1970.
Larry Robertson has been with Pearson Engineering for 26 years and has 39 years total experience in Electrical Design. Larry serves as a Senior Electrical Designer for the firm. His experience has included Healthcare Facilities, Airport Airfield Lighting Systems, Aviation Aids, Airport Administration Areas, and Military projects. Larry is an ICBO Certified Electrical Inspector and received his Associate Degree in Applied Science Technical Design and Drafting from Phoenix College in 1980.
Chuck Seymour, CPD
Chuck Seymour has been with Pearson Engineering Associates for 22 years and has 38 years of industry experience in Mechanical and Plumbing Systems Design. Chuck serves as a Senior Mechanical / Plumbing Designer. He has provided Design, Coordination, and Project Management for Commercial, Industrial, and Recreational projects of all size and scope. Chuck is a Certified Plumbing Designer (C.P.D).