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About Us

The American Council of Engineering Companies of Colorado (ACEC/CO) is the business association of 230 member firms employing more than 10,000 employees in the independent private practice of consulting engineering. ACEC/CO is a primary resource for accessing engineering information, expertise and business ethics practices.

ACEC/CO firms range in size from the small to very large, and serve as consultants to government, industry, contractors, developers, and private sector clients. The annual business volume of members in the Colorado organization is in excess of $300 million. Much of these professional services are performed for out-of-state clients resulting in a considerable positive economic impact and increase in the number of jobs within Colorado.

The annual construction cost arising from the services of ACEC/CO firms (both within and outside the State) exceeds two billion dollars. Private consultants have historically maintained an important role in Colorado’s economy.

Consulting engineering firms in ACEC/CO provide expertise for a wide range of activities including acoustical, chemical, civil, electrical, geotechnical, industrial, materials, mechanical, mining, petroleum, photogrammetric, structural, transportation, water resources, environmental and agricultural engineering and surveying.

ACEC/CO has maintained a vital membership and today nearly 50 percent employ 10 persons or less. Among the most valued benefits of belonging to ACEC/CO is the ability for small firms to organize, share information and evolve best business practices in a supportive, non-competitive atmosphere. Larger firms (100+ employees) are also engaged with ACEC/CO representing seven percent of membership. Although member firms have experienced a staggering 21 percent decrease in their employee count over the past two years, they continue their membership to ensure that they have access to pertinent business information, workshops and legislative advocacy that is paramount to the health of the consulting engineering industry.


Code of Ethics

With high regard for the engineering profession and recognizing in the Code of Ethics a set of dynamic principles to guide their services to their fellow men, and with full knowledge of the responsibility of consulting engineers to safeguard health, safety, and public welfare, a member of American Council of Engineering Companies of Colorado:

  • Brings credit, honor and dignity of the engineering profession to their dealings with clients, other engineers, and the public.
  • Acts for their clients as a faithful agent or trustee and accepts remuneration only in accordance with their stated charges for services rendered.
  • Exchanges non-confidential engineering information with other engineers, students, and the engineering press, encourages the public knowledge of engineering, and insures proper credit for engineering works.
  • Solicits engineering work assignments according to high professional standards, without offering commissions, or using undue influence.
  • Upholds and promotes the principle of selection of consulting engineers for assignments on the basis of qualifications, including training, skill, experience, personnel, work loads, and availability.
  • Associates as a consulting engineer only with engineers and other professionals who conform to ethical practices.
  • Shall be familiar with, and abide by, the ACEC Professional and Ethical Conduct Guidelines.
  • Continue their professional development throughout their career, and shall provide opportunities for the development of those under their supervision.


Articles of incorporation and By-Laws


2014-2015 Board of Directors


Vice President

Past President


National Director

Directors– Metro

Peter Monroe,P.E.

Marvinetta Hartwig, P.E.

Greg Roush, P.E.

Elizabeth Stolfus, P.E.

Rob Refvem, P.E.

Craig Watts,P.E.

Steve Ravel, P.E.

Ceila Rethamel, P.E.

Matt Schlageter,P.E.

Director – South

Director – West

Director – North

Scott Sammons

Dave Merritt, P.E.

Frank Kohl, PLS



Executive Director

Membership Services Coordinator

Education Coordinator


Marilen Reimer, CAE

Van Tran

Julie Ann Dill

Della Rosell