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DMc Engineering

Irvine's Civil Engineering Partner Since 1987

DMC Engineering building entrance with glass doors and large address number 100.

DMc Engineering was founded in 1987 by Derek J. McGregor, PE, PLS, with a clear mission: deliver civil engineering and land surveying services built on honest communication, disciplined coordination, and precise calculation. More than four decades later, those three principles — Communicate, Coordinate, Calculate — remain the foundation of every project we take on.


Our firm has been headquartered in Irvine, California, since its inception, giving us deep knowledge of Orange County's regulatory environment, public agencies, and local development landscape. That local expertise, combined with a reputation built largely on repeat business and referrals, has allowed DMc Engineering to grow steadily for over 40 years without losing the responsiveness and accountability of a local firm.

Our Valued Clients

We are proud to serve public agencies, school districts, private developers, and homeowners associations across Orange County. Our reputation is built on repeat business and referrals.


Featured clients include:

  • City of Irvine
  • Irvine Great Park
  • OC Public Works
  • Redondo Beach Unified School District
  • Coast Community College District
  • City of Anaheim
  • City of Garden Grove
  • City of Laguna Niguel
  • City of San Clemente
  • City of Laguna Beach
  • City of Tustin
  • City of Huntington Beach
  • City of Newport Beach
  • Trabuco Canyon Water District

Our Approach

Communicate

Communicate

Communicate

We maintain clear and consistent communication with clients, agencies, and consultants from project kickoff through close-out. 

Coordinate

Communicate

Communicate

We manage all project elements including permits, utilities, agencies, and contractors to keep work moving efficiently and on schedule. 

Calculate

Communicate

Calculate

We deliver precise engineering calculations and accurate survey data that form the essential foundation of all plans, maps, and reports. 

Ready to start your project?

 With over 40 years of experience serving Orange County's public agencies, private developers, and school districts, our licensed engineers and surveyors are ready to bring precision, expertise, and local knowledge to your next project. 

Discuss Your Project

DMc Engineering

18 Technology Drive, Suite 100, Irvine, CA 92618

(949) 753-9393

 © 2026 DMc Engineering, Inc. | 18 Technology Drive, Suite 100, Irvine, CA 92618 | (949) 753-9393 | All Rights Reserved.

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