Hazen and Sawyer | 26,902 followers on LinkedIn. 75 years and counting of collaboration, innovation, and commitment to supporting client and community water needs | As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere. By fostering a culture rich with collaboration, opportunity, and support, we've retained a small-firm feel even as we've expanded to be the water industry's largest firm solely devoted to all things water. Our focus on water prepares us to handle the exceptional challenges facing the industry: adapting to new regulations and changes in supply or demand; targeting stretched budgets for optimal ROI; developing resilience to drought, floods, severe storms, and wildfires; charting a course into the digital age; and much, much more.