RMA GROUP
- 60 YEARS OF
TRUST

Over 300 of the industry’s brightest.

Rancho Cucamonga
909.989.1751
12130 Santa Margarita Court
Rancho Cucamonga, CA 91730
Carson

310.684.4854

1210 East 223rd Street, Suite 319

Carson, CA 90745

Concord

925.243.6662

5102 Port Chicago Highway, Suite B

Concord, CA 94520

San Diego
858.609.7138
6976 Convoy Court
San Diego, CA 92111
Rancho Cordova
916.631.7194
3150 Fitzgerald Road
Rancho Cordova, CA 95742

If you’re looking for a dynamic consulting firm committed to service, innovation, and success, you’ve just found it. Established by Richard Mills and E. Duane Lyon in 1962 as Richard Mills & Associates, RMA Group designed and built much of the infrastructure that supports the Inland Empire. RMA Group grew along with our reputation for quality, service, integrity, expertise, and hard work, forming a foundation of trust with clients and agencies that’s lasted for 60 years. Today, RMA Group has expanded our reach and services with offices throughout California and 300 of the industry’s brightest engineers, geologists, inspectors, technicians and administrative professionals. Much of this growth occurred during the most severe economic downturn of my professional career – a testament to the value we bring our clients in every project that we undertake.

RMA Group employee owners and next-generation management take our reputation seriously and remain committed to the quality, services and values that earned it. We know that while we are first and foremost professionals, our business is built on long-term relationships and the belief that every client counts. We’re here to support you with all the talent and resources at our disposal.

As your partner, we’re as invested in the success of your next project as you are; please contact any of our RMA Group leaders to discuss your project needs. We’re excited to work with you on the continued growth and development of the built environment of the future.

Sincerely,
Ed Lyon, CEO

RMA GROUP
- 60 YEARS OF
TRUST

Over 300 of the industry’s brightest.

If you’re looking for a dynamic consulting firm committed to service, innovation, and success, you’ve just found it. Established by Richard Mills and E. Duane Lyon in 1962 as Richard Mills & Associates, RMA Group designed and built much of the infrastructure that supports the Inland Empire. RMA Group grew along with our reputation for quality, service, integrity, expertise, and hard work, forming a foundation of trust with clients and agencies that’s lasted for 60 years. Today, RMA Group has expanded our reach and services with offices throughout California and 300 of the industry’s brightest engineers, geologists, inspectors, technicians and administrative professionals. Much of this growth occurred during the most severe economic downturn of my professional career – a testament to the value we bring our clients in every project that we undertake.

RMA Group employee owners and next-generation management take our reputation seriously and remain committed to the quality, services and values that earned it. We know that while we are first and foremost professionals, our business is built on long-term relationships and the belief that every client counts. We’re here to support you with all the talent and resources at our disposal.

As your partner, we’re as invested in the success of your next project as you are; please contact any of our RMA Group leaders to discuss your project needs. We’re excited to work with you on the continued growth and development of the built environment of the future.

Sincerely,
Ed Lyon, CEO

Rancho Cucamonga
909.989.1751
12130 Santa Margarita Court
Rancho Cucamonga, CA 91730
Carson

310.684.4854

1210 East 223rd Street, Suite 319

Carson, CA 90745

Concord

925.243.6662

5102 Port Chicago Highway, Suite B

Concord, CA 94520

San Diego
858.609.7138
6976 Convoy Court
San Diego, CA 92111
Rancho Cordova
916.631.7194
3150 Fitzgerald Road
Rancho Cordova, CA 95742

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