Collaboratively engineered. Sustainable solutions.

Leading sustainability through our strong reputation as an accountable, client-oriented firm, while strengthening our regional presence.

At the forefront of CTa culture is a fun, collaborative environment, with an emphasis on teamwork, coordination, and accountability.  Every individual strives to deliver their best work.  This includes responsiveness to clients, attention to detail, extensive due diligence, and thoughtful consideration for the building aesthetics and objectives.  With the combined experience of our team, there isn’t much we haven’t seen, and can’t handle.  Our collaborative efforts will result in your successful project.

Responsiveness. Diligence. Experience.


Provide Sustainable Solutions

We are a highly responsive, service-driven company providing our clients with value through innovation and proactive engineering solutions. Our engineering goal is to provide energy efficient and sustainable solutions that meet client expectations while respecting client budgets and protecting the public interests.

Deeply rooted in the Twin Cities market since our inception in 1983 as Cain Ouse Associates, Inc., CTa has continued to evolve with the industry and expand our legacy of providing quality design services and strong customer service. CTa is an industry leader, utilizing the most current software, analyzing industry trends, and incorporating sustainable features, while remaining committed to providing consistent value to our clients. CTa’s tactful growth allows for us to be well suited for the evolving future of our industry.