Kimley-Horn | 149,852 followers on LinkedIn. One of the nation's premier planning and design consulting firms. | Kimley-Horn is one of the nation’s premier planning and design consulting firms. With 9,000+ staff members in more than 140 offices across the U.S., we offer full services in a wide range of disciplines. Clients know us for the creativity of our solutions and the sense of urgency we bring to each and every project.