Every Thursday during 2016, Tetra Tech will be celebrating our 50th Anniversary by participating in throwback Thursday (#TBT) on social media. Check out our Facebook and Twitter (@TetraTech) pages each week to for a glimpse into our history.

From conducting sampling in the arctic to showcasing our underwater remote-control vehicles to meeting our founders, these photos will take you through some of the highlights of the past 50 years and how we became the top engineering firm we are today.