H&H continues to rise in the ENR Top 500 Design Firms List. After cracking the top 200 five years ago, we have moved up to 150 this year. We are grateful for the trust our clients and partners have with H&H to deliver complex infrastructure projects successfully.

We celebrate the hard work of our dedicated team of 500 #hhsquad members who live our mission of providing outstanding engineering solutions every day!

The ENR Top 500 Design Firms list, published annually in April, ranks the 500 largest U.S.-based design firms, both publicly and privately held, based on design-specific revenue.