The BCER Group is comprised of BCER Engineering, Rimrock Technology, and Rondinelli Life Safety and as a group offers mechanical, electrical, life safety, fire protection, energy, and technology consulting services serving the Rocky Mountain area since 1994. After the retirement of the founding President, Marc Espinosa in May of 2015, Stephen Rondinelli, AIA, was named president of the BCER Group.  Rondinelli brings with him more than 41 years of experience holding numerous senior level leadership roles in both the public sector and privately held companies. Collectively, with principal partners, Mike Cordero, and John Thompson, comes over 137 years of engineering work experience. The principals are well-versed in the management of the business as well as the operational side of engineering design and construction in the Consulting Engineering industry.

In 2013, Rondinelli Life Safety and Rimrock Group were integrated into the BCER Engineering family; now known as The BCER Group; it had become our desire to develop a full-service firm that strengthened our abilities to serve all of our clients more responsively. The success of BCER has been its diversity in several markets including Commercial, Multi-Family Residential, Hospitality, Health Care, Government, Higher Education and Industrial markets.

The BCER Group has been blessed with the development of a great company that works hard and plays hard each and every day.

  • Steve Rondinelli, AIA
  • Mike Cordero, P.E., LEED AP
  • John Thompson, P.E., DCDC, RCDD, NTS
  • David Hughes, P.E. LEED A.P. BD+C

Associate Principals

  • Dean Gustafson, CPD
  • Rick Sauser
  • Chris Schroeder, LEED-AP
  • Mike Schroeder, P.E.
  • Keith Jones, P.E., LEED AP
  • Byron Ballantyne, P.E.
  • Sean Beilman, P.E. LEED A.P. BD+C
  • Bryan Fingland, P.E. LEED AP


  • Jennifer Remy
  • Scott Muller
  • Todd Brand, M. Sc. FPE
  • Travis McNair, RCDD