Our Story

As creative pioneers, we seek to invent a better way of living.

CTA Architects Engineers' founders, Ralph H. Cushing and Everett O. Terrell
Founders Ralph H. Cushing (standing) and Everett O. Terrell review designs circa 1965.

Born of the big skies and lush mountainscapes of Montana, Cushing Terrell’s roots in the American West run deep. But since our founding in 1938, we’ve grown beyond the natural boundaries of the mountain region – outward, and with an upward trajectory reflective of a bright future. Characterized by the rising angles in our logo, we’re driven by the desire to forever improve.

We’re creative yet careful, accomplished yet modest, thoughtful yet fun. But we never forget the landscape upon which our firm was established, on a late summer day along the banks of the winding Boulder River. The natural beauty surrounding these founding moments continues to underscore and inspire our lives, work, and brand.

Celebrating our more than 80 years in business, in 2019, we announced a name change from CTA Architects Engineers to Cushing Terrell. The name and brand refresh continue to celebrate our legacy and core values while looking to the future.

What We Do

Emphasizing active listening and collaborative exploration to guide you through the design process, from ideation to occupancy.

Analyses of energy use to optimize consumption and production to meet financial and sustainability goals.


Civil, Electrical, Mechanical, Refrigeration, Structural, and more. We have a full complement of engineering specializations.

Enhancing the human experience through environmental graphics, branding, interactive media, and dynamic wayfinding.

Concentrated efforts to ensure stability while retaining significant, historic, character.

User-focused planning process paired with curated design to create unique spaces supporting the indoor human experience.

Design solutions that reinforce and enhance connections between built and natural environments.

Utilizing sound growth principles and superior design communication to craft aspirational community plans for cities and counties.

Markets We Serve

Commercial design for this mid-rise tower, the Eighth & Main Building, in downtown Boise, Idaho


We aim to inspire interaction, motivation, and team member satisfaction in every commercial environment -- from corporate offices to financial institutions, corporate developments, industrial spaces, community centers and more.

Education design (school library) for Bigfork High School in Bigfork, Montana


We are convinced of and inspired by the inherent connections between the schools we design and the people who teach and learn within their walls. Our educational design encourages student flexibility, collaboration, and active learning.

Government design for Kenai National Wildlife Refuge Visitor Education Center in Soldotna, Alaska


Our diverse governmental team provides a wide range of professional services -- including planning, budgeting, documentation, analysis, and design -- to the full spectrum of public agencies at the local, state, and national levels.

Healthcare design of patient rooms at Billings Clinic in Billings, Montana


Improving the lives of patients and caregivers is paramount. We reimagine healing environments to provide inspirational designs emphasizing sustainability and wellness, and to deliver service allowing our clients to focus on their patients.



We specialize in renewable energy generation, microgrids, land development, bridge design, and water and wastewater design. Our goal is to provide cost-effective, efficient, and technically advanced solutions.

Design of a breathtaking custom home in Jackson Hole, Wyoming


From executive residences to multi-family dwellings to hotels, we believe residential design is about realizing clients' dreams while ensuring final products mesh with their surroundings and perform at the highest levels.

Retail design for Metropolitan Market in Sammamish, Washington


Facilitating relationships by encouraging shared experiences, we design through the study of human behaviors and observing the way people use social spaces. We believe in the power of retail in its many forms to bring people together.

Sustainable Practice

As part of the Environmental Protection Agency’s Green Power Partnership, Cushing Terrell invests in Renewable Energy Certificates (RECs) for 100% of our operational power needs — accounting for all 13 of our offices and every remote team member. We walk the walk, and thrive on opportunities to challenge convention.