H&H

With more than 139 years of experience, H&H is a trusted, full-service infrastructure engineering firm delivering complex, forward-looking solutions that advance our clients’ goals and strengthen the communities they serve. Infrastructure owners, contractors, and partners rely on our proven ability to manage every phase of a project’s life cycle, from early study and planning through design and construction, with the technical excellence, responsiveness, and accountability that define the H&H standard.

Supported by more than 600 professionals across 32 offices nationwide, H&H combines national scale with local expertise to deliver projects of any size, type, or delivery method. As we continue to grow, we are focused on aligning our people, strengthening our culture, and positioning H&H as a scalable national firm, while maintaining the accessibility, clarity, and high-performance delivery our clients expect. Through this approach, we are differentiating H&H in the marketplace and investing in the people, systems, and innovation that enable us to deliver lasting value across the country and around the world.