H&H

With over 139 years of experience, H&H is a trusted, full-service infrastructure engineering firm. We are dedicated to delivering complex, forward-looking solutions that advance our clients’ goals and strengthen the communities they serve. From early study and planning through design and construction, clients rely on our technical excellence, responsiveness, and accountability to manage every phase of their projects.

Our team of over 600 professionals operates across 32 offices nationwide, combining national scale with local expertise. At H&H, we cultivate a high-performance culture focused on clarity, accessibility, and continuous investment in our people, systems, and innovation. We are committed to delivering lasting value across the country and around the world. We invite you to learn more about our work and opportunities.