Tetra Tech, Inc. announced earnings results for the first quarter ended December 27, 2020. For the first quarter, the company announced sales was USD 765.104 million compared to USD 797.623 million a year ago. Operating income was USD 66.252 million compared to USD 63.302 million a year ago. Net income was USD 52.436 million compared to USD 47.310 million a year ago. Basic earnings per share from continuing operations was USD 0.97 compared to USD 0.87 a year ago. Diluted earnings per share from continuing operations was USD 0.96 compared to USD 0.85 a year ago.