Tetra Tech confirms consulting, engineering growth  www.mining-journal.comUS consulting and engineering services firm Tetra Tech has lifted its fiscal 2019 revenue and profit guidance after reporting record results for the third quarter. Read mo …

Tetra Tech Acquires Australian Engineering Firm Norman DisneyLos Angeles Business JournalPasadena-based consulting engineering services firm Tetra Tech Inc. announced on Jan. 17 that it has signed an agreement to acquire Australia's Norman Disney & …