SEG International Email Format
Civil EngineeringArizona, United States51-200 Employees
SEG International is a mid-sized civil engineering practice focused on sustainable site design for land development. The company began in 2009 as Sustainability Engineering Group, LLC, and operates under the SEG International banner with an emphasis on ecologically conscious engineering that serves public, private, and government clients. Since its inception, it has completed roughly 4,000 notable development projects across the United States. The firm embeds sustainable principles throughout project proposals, from site selection to operation and management, and accounts for lifecycle impacts including durability and performance. Its client base spans public agencies, private developers, and government entities, reflecting its role within the civil engineering sector and its focus on sustainability-driven development. Based in Phoenix, Arizona, the firm announced an expansion of its offices in March 2023, indicating growth in its regional footprint.