We don’t just design building systems. We engineer the future.

When you choose Arnold & O’Sheridan, you join an award-winning, multi-disciplinary engineering firm that is dedicated to delivering higher performance buildings.

Our culture is infused with a progressive spirit that embraces innovation, creativity and sustainability. On every project, our engineers lead, explore, and contribute by testing emerging methods against proven techniques.

As a result, our clients gain the advantage of a stronger bottom line, improved safety and security, and enhanced operational efficiencies. Just as important, you gain the benefit of career development and greater satisfaction with a job well done.

People first—always!

In our 40-plus years of advancement and growth, there is one truth that we have not lost sight of: Our success as a company is grounded in our employees’ satisfaction as individuals. As such, we strive to accommodate your needs through people oriented policies, supportive management, first-rate training programs, and excellent compensation and benefits packages. It’s what earned us a “Best Places to Work” designation in 2005 and 2008, and it’s what drives high scores on employee satisfaction surveys.