Cator Ruma
Since 1959
Engineering:
- for 67 years.
- together.
- what matters.
About Us
Since 1959, Cator Ruma has delivered trusted Mechanical, Electrical, Plumbing, Technology, and Commissioning solutions across the Western U.S., helping institutions create spaces that heal, teach, and bring communities together. With 115+ professionals and decades of repeat client success, we bring deep knowledge, care, and commitment to every project.
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 deliver Mechanical, Electrical, and Plumbing systems that are efficient, reliable, and precisely engineered to meet the unique demands of institutional environments.
Services & Solutions
We deliver Mechanical, Electrical, and Plumbing systems that are efficient, reliable, and precisely engineered to meet the unique 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
We design for complex environments,
and we deliver — every time.
-
Boise Fire Station #9
- Project size
- 7,800
- Services
-
- Electrical
- Mechanical
- Plumbing
- Technology
-
Adams State University – The Residence at the Rex and Rex Stadium
- Project size
- 67,785
- Services
-
- Electrical
- Mechanical
-
Colorado Mountain College – Spring Valley Ascent Center, Fitness Center, and Student Commons
- Project size
- 91,300
- Services
-
- Mechanical
-
Colorado School of Mines – Spruce Residence Hall
- Project size
- 120,000
- Services
-
- Electrical
- Mechanical
- Plumbing
- Technology
-
Colorado School of Mines – Green Center Roof Replacement, Auditorium Reconfiguration, and Controls Upgrades
- Project size
- 44,000
- Services
-
- Electrical
- Mechanical
-
Colorado State University – New Chemistry Building – LEED Platinum
- Project size
- 61,200
- Services
-
- Electrical
- Mechanical
- Plumbing
-
Colorado State University – Suzanne and Walter Scott Jr. Bioengineering Building
- Project size
- 120,000
- Services
-
- Electrical
- Mechanical
- Plumbing
-
Colorado State University – Biology Building
- Project size
- 152,000
- Services
-
- Electrical
- Mechanical
-
Colorado State University – Lory Student Center Theatre Renovation
- Project size
- 16,900
- Services
-
- Electrical
- Mechanical
- Plumbing
- Technology
-
Colorado State University – Lory Student Center Expansion
- Project size
- 125,000
- Services
-
- Electrical
- Mechanical