H&H continues to rise up the ENR Top 500 Design Firms List. After cracking the top 200 just two years ago, the firm moved up 156 this year (from 180 in 2018). We are grateful for the trust our clients and partners have with H&H to successfully deliver complex infrastructure projects. Congratulations to our dedicated team of more than 440 employees who live our mission of providing outstanding engineering solutions every day!