Cator Ruma
Since 1959
Engineering:
- for 67 years.
- together.
- what matters.
About Us
For more than six decades, Cator Ruma has helped shape the Western U.S. through innovative Mechanical, Electrical, Plumbing, Technology, and Commissioning solutions. Our 115+ experts partner with leading institutions to create environments that heal, educate, and strengthen communities. Clients choose us for our deep technical insight, responsive collaboration, and a reputation built on repeat success.
By the numbers
Services & Solutions
Mechanical
Mechanical systems form the nerve center of every project. We design with comfort, reliability, performance, and environmental quality in mind, ensuring each system functions seamlessly and supports the space’s overall aesthetic and goals.
Electrical
Electrical systems power the functionality and safety of every project. We design with efficiency, reliability, and flexibility in mind, ensuring each system supports current needs while allowing for future growth and integrating cleanly into the overall design.
Plumbing
Plumbing is fundamental to how a building operates and serves its occupants. We emphasize resilient design, responsible water management, and seamless integration to ensure dependable performance throughout the project’s life.
Technology
Technology systems shape how a building connects, communicates, and performs. We design adaptable, user-focused solutions that support seamless operations, enhance security, and evolve with future needs.
Commissioning
Commissioning confirms that building systems function as intended. Our team evaluates design, installation, and performance to ensure every system supports the Owner’s needs and operates reliably over time.
Services & Solutions
We design and deliver Mechanical, Electrical, and Plumbing systems that set the standard for efficiency, reliability, and precision – engineered specifically for the complex demands of institutional environments.
Services & Solutions
We design and deliver Mechanical, Electrical, and Plumbing systems that set the standard for efficiency, reliability, and precision – engineered specifically for the complex demands of institutional environments.
Services & Solutions
Careers
Excellence Is Our Standard.
Growth Is Our Culture.
At Cator Ruma, you won’t just do meaningful work — you’ll grow into the kind of engineer others trust to lead. We invest in our people with mentorship, real responsibility, and a culture rooted in collaboration over ego. It’s why so many build their careers here — and why they stay.
Industries We Serve
Children’s Hospital Colorado
Colorado Springs, CO
MSU Aerospace & Engineering Sciences
Denver, CO
CSU SPUR Campus Hydro Building
Denver, CO
Mapleton School District Trailside Elementary
Twin Lakes, CO
Boise Fire Station No. 13
Boise, ID
Union Station
Denver, CO
NREL RSF
Golden, CO
Case Studies
Project Spotlight
In the most complex environments, we bring clarity through expertise, thoughtful design, disciplined execution, and a strong commitment to meaningful outcomes – every time.
-
Denver Union Station – Block A
- Project size
- 236,000
- Services
-
- Electrical
- Mechanical
-
The Arrabelle at Vail Square
- Project size
- 540,000
- Services
-
- Electrical
- Mechanical
-
National Renewable Energy Laboratory (NREL) Integrated Biorefinery Research Facility
- Project size
- 27,000
- Services
-
- Electrical
-
Lutheran Hospital
- Project size
- 660,000
- Services
-
- Comissioning
- Electrical
- Mechanical
-
Colorado Mountain College – Spring Valley Ascent Center, Fitness Center, and Student Commons
- Project size
- 91,300
- Services
-
- Mechanical
-
Children’s Hospital Colorado East Tower Addition
- Project size
- 450,000
- Services
-
- Electrical
- Mechanical
-
St. Joseph Hospital – Retro-Commissioning & Energy Audit
- Services
-
- Comissioning
-
Colorado State University – Biology Building
- Project size
- 152,000
- Services
-
- Electrical
- Mechanical
- Plumbing
-
Boise State University, Micron Center for Materials Science Research
- Project size
- 90,000
- Services
-
- Electrical
- Mechanical
- Plumbing
- Technology
-
Alsup Elementary School Replacement
- Project size
- 75,000
- Services
-
- Electrical
- Mechanical
- Plumbing
- Technology