Kimley-Horn


Kimley-Horn and Associates, Inc. is an American planning, surveying, engineering, and design consulting firm. The firm was founded in Raleigh, North Carolina, in 1967.
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Overview

Kimley-Horn was founded in Raleigh, North Carolina, in 1967 by three transportation engineers: Bob Kimley, Bill Horn, and Ed Vick. Kimley-Horn has approximately 9,000 employees as of 2025.

Awards

The company was ranked #22 on Fortune's "100 Best Companies [to Work For]" list in 2025, its 18th year on the list. Engineering News-Record ranked Kimley-Horn as #8 in its "Top 500 Design Firms" list in 2025, climbing two spots from the 2024 survey.

Services

Kimley-Horn provides a range of professional services including development services, roadway design, structural engineering, environmental engineering, surface water, transportation engineering, energy consulting, landscape architecture, aviation consulting, and software. The firm serves both public and private sector clients across the United States.

Technology Solutions

Under Kimley-Horn Technology Solutions, Inc., the company develops and offers a suite of smart city and intelligent transportation system technologies, including the Kimley-Horn Integrated Transportation System, Traction Priority, and Kadence. These tools support adaptive signal control, transit signal priority, and real-time traffic performance monitoring.
The firm's software solutions are deployed in various municipalities across the United States and Canada, including Los Angeles County and Austin, Texas.