Skip to content

Our website uses cookies. Cookies are small text files held on your computer that help us understand how you use our Website. Our cookies do not store any personal information about you, and you can delete and block cookie settings via your browser settings any time. By clicking “ok”, you agree to accept our use of cookies. Learn more by reviewing our privacy policy.

Greg Timmerman

President & CEO

As ISEC’s President and CEO, Greg provides key leadership and oversight of the organization, its executive leadership team, and the Board of Directors. He is responsible for setting and executing ISEC’s strategy, vision, and purpose.


  • University Of Chicago, Booth School of Business – Advance Management Program
  • ITT Technical Institute – Architectural Engineering, CAD
  • University of Denver – Executive Education Program


  • AGC Executive Committee
  • AGC California – Vice President, Specialty Contractors Council
  • AGC Union Contractors Council


  • OSHA 30
  • Leading Strategic Growth, Columbia Business School Executive Education
  • Fostering Inclusion and Diversity, Yale School of Management Executive Education
  • Idaho State Contractor’s License, Qualifier

“All of my great business accomplishments can be measured by the success of others. I truly believe that by surrounding myself with talented people, reaching organizational goals becomes so much easier.”