HSA is an industry-leading, engineering consulting and forensics investigation firm that has been delivering creative engineering solutions to our clients for more than 20 years using the best talent we have to offer, no matter what the assignment or location. We pride ourselves in our ability to be advocates for our clients and to provide our clients with service that is responsive and efficient. Our vision is to be the engineering consulting firm of choice to our clients who recognize our passion for delivering exceptional service and quality.

As a member of the Conestoga-Rovers & Associates (CRA) Family of Companies since 1999, professionals from HSA have worked with CRA as a seamless team to bring innovative, sustainable, and cost-effective solutions to our client’s engineering needs.  HSA/CRA are both privately‑owned and we believe in putting the best team together for our clients regardless of their affiliation.  The result is quality service and client satisfaction.

We offer a diverse and highly-qualified technical staff, which includes more than 3,000 people operating in over 90 offices throughout the United States, Canada, and the United Kingdom. Our industry-focused professionals in the fields of engineering, geology, soil physics, chemistry, toxicology, environmental science, water resources, biology, ecology, hydrogeology, hydrology, statistics, construction management, and information management help to create solutions to today's most complex engineering issues. The diversity of our staff and consulting solutions allows us to offer an integrated approach that combines insight from multiple disciplines to help organizations excel anywhere in the world.