Full-service engineering, construction, and specialized solutions for businesses in North America.

Consult. Design. Build. Operate.

Beyond impeccable design-build execution, we help brace your business for the future and get the most life out of your building.

Your challenge is our challenge.

C1S Group works with everyone from Fortune 1000 companies to local business owners. No matter what you do, or the facility challenge you have, we have a solution to make your building—and your operations—better.

Industries we serve
Medical Device
Aerospace + Defense
Food + Beverage


You are in good company.


We solve for the big picture.

Through our consultative approach, we diagnose opportunities and create a holistic plan to help you secure capital funding for renovations while improving operations at the same time.

Aerospace & Defense

C1S partnered with Corgan to complete the new AIM Wing design at the Raytheon McKinney Campus. The new standalone 2-level, 184,000+/- sf, tilt-wall building houses user groups relocated from the main building. The main floor consists of approximately 50,000 sf of ISO 7 cleanroom, 120,000 sf of general manufacturing, and 30,000 sf of support office space. There are also future classified areas within the new expansion, which will require SCIF construction methods in those areas. In addition, a second level consists of approximately 32,400 sf of office/admin space to support manufacturing operations. The existing infrastructure systems in the main building and central plant were used to the fullest extent possible to support the new building.

Ensure the lifetime health of your facility capital investments.

Let's get started.

Anything else?

You can also give us a call at:972.386.7005

Best place to work.

Join a team that promotes productivity, values expertise, and likes to have fun.

We work hard to provide our clients with the best design and construction experience possible, but we can only do that with the right people on our team.

A list of organization logos: Certified WBENC Women's Business Enterprise, HUB Statewide Historically Underutilized Business Program, We run on EOS, Inc. 5000, 2021 Outside Best Places to Work, Dallas 100
Shelby Powell
Joseph Traino
Chris Childress
Christy O'Brien
Jeremy Molinar
Austin McRight
Cameron Smith
Victoria Butcher
Brendan Foley
Jordan Meadows
Matthew Strong
Karla Arana