Kimley-Horn is a national planning, engineering, and design consulting firm founded in 1967 by transportation engineers Bob Kimley and Bill Horn. The firm has grown from its origins in highway design to serve both public and private sector clients across infrastructure and development projects. With nearly 10,000 employees operating from more than 150 offices throughout the United States, Kimley-Horn handles projects of all sizes, from local developments to national initiatives.
The firm's technical expertise spans planning, civil engineering, transportation engineering, environmental consulting, landscape architecture, and integrated infrastructure design. More than 90% of Kimley-Horn's work comes from repeat clients, reflecting sustained client relationships built over decades of practice.
The company emphasises collaboration and professional development, offering structured mentoring, clear career paths, and encouragement for employees to take ownership of meaningful work. The firm positions its service around delivering creative solutions backed by expert knowledge on projects that affect communities and infrastructure systems across the country.
