Tetra Tech(TTEK) - 2025 Q2 - Quarterly Results

Exhibit 10.1 Execution Version Published Deal CUSIP Number: 88163BAP8 Published Revolving Credit Facility CUSIP Number: 88163BAQ6 Published 3-Year Term Loan Facility CUSIP Number: 88163BAR4 Published 5-Year Term Loan Facility CUSIP Number: 88163BAS2 FOURTH AMENDED AND RESTATED CREDIT AGREEMENT Dated as of May 5, 2025 among TETRA TECH, INC., TETRA TECH CANADA HOLDING CORPORATION, TETRA TECH UK HOLDINGS LIMITED, TETRA TECH AUSTRALIA GROUP HOLDINGS PTY LTD and CERTAIN OTHER SUBSIDIARIES, as Borrowers, THE LEND ...