- In August 2017, Jacobs Engineering Group announced it had reached an agreement to acquire CH2M. The deal is expected to be finalized in Jacobs’ fiscal 2018 first quarter. The firms submitted separate revenue figures for this survey.
- In November 2016, Woodard & Curran announced its acquisition of RMC Water and Environment, which ranked 43rd in the Top 50 in 2016.
- In May 2017, Murray, Smith & Associates rebranded to Murraysmith.
- View the 2016 Trenchless Engineering Firms Survey