Core Principles

Delta welcomes Southern Tier Surveying, Inc. as the newest addition to the Delta Team on November 1! Roger Holmes, Grant McHugh, and Mark Frailey are available to meet your survey needs.

Delta is an ISO 9001:2015 certified professional services firm founded in 1976 and headquartered in the Southern Tier of New York State. We deliver architecture and engineering planning and design solutions for public and private clients across the United States.

We are a trusted and growing industry leader that delivers innovative and progressive solutions that have a meaningful impact on our clients, our employees, and the communities we serve.