In fiscal 2025, which ended Sep 28, 2025, Tetra Tech Inc reported revenue of $5.4 billion, up 4.7% from the year before. Net income was $247.9 million, a profit margin of 4.6%. Operating income came to $408.4 million, an operating margin of 7.5%. Diluted earnings per share were $0.93. Over the twelve months ended Jun 28, 2026, revenue was $5.1 billion and net income was $436.7 million. Across the 8 fiscal years shown, revenue grew from $3.0 billion in fiscal 2018 to $5.4 billion in fiscal 2025, about 9.1% a year.
USD in millions, except per-share amounts and margins. The percent under a figure is the change from the year before.
| Line |
FY 2026
Jun 28, 2026
|
FY 2025
Sep 28, 2025
|
FY 2024
Sep 29, 2024
|
FY 2023
Oct 1, 2023
|
FY 2022
Oct 2, 2022
|
FY 2021
Oct 3, 2021
|
FY 2020
Sep 27, 2020
|
FY 2019
Sep 29, 2019
|
FY 2018
Sep 30, 2018
|
FY 2017
Oct 1, 2017
|
FY 2016
Oct 2, 2016
|
|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue |
5,069
-7.6%
|
5,443
+4.7%
|
5,199
+15.0%
|
4,523
+29.1%
|
3,504
+9.0%
|
3,214
+7.3%
|
2,995
-3.6%
|
3,107
+4.8%
|
2,964
|
—
|
—
|
| Cost of revenue |
—
|
825
|
—
|
—
|
—
|
—
|
—
|
—
|
—
|
—
|
—
|
| Gross profit |
952
+2.1%
|
961
+11.0%
|
866
+19.5%
|
725
+26.0%
|
576
+15.5%
|
498
+11.6%
|
447
+9.4%
|
408
+6.2%
|
384
+8.7%
|
354
+7.1%
|
330
|
| Operating income |
612
+65.1%
|
408
-18.4%
|
501
+39.8%
|
358
+5.2%
|
340
+22.2%
|
279
+15.6%
|
241
+27.7%
|
189
-0.7%
|
190
+3.7%
|
183
+35.0%
|
136
+54.9%
|
| Interest income |
—
|
10
+35.0%
|
7
+23.6%
|
6
+231.3%
|
2
+94.1%
|
1
-33.3%
|
1
-20.6%
|
2
-5.0%
|
2
+150.2%
|
1
-26.8%
|
1
+46.5%
|
| Interest expense |
40
|
41
-8.8%
|
45
|
—
|
—
|
—
|
—
|
—
|
—
|
—
|
—
|
| Pretax income |
594
+75.5%
|
378
-18.5%
|
463
+15.6%
|
401
+15.0%
|
349
+30.7%
|
267
+17.1%
|
228
+30.2%
|
175
+0.3%
|
175
+1.6%
|
172
+38.0%
|
124
+55.0%
|
| Income tax |
157
+28.8%
|
130
-0.3%
|
130
+2.0%
|
128
+49.0%
|
86
+151.5%
|
34
-37.1%
|
54
+230.4%
|
16
-56.5%
|
38
-30.2%
|
54
+32.6%
|
41
-1.2%
|
| Net income |
437
+101.9%
|
248
-25.6%
|
333
+21.9%
|
273
+3.9%
|
263
+13.0%
|
233
+33.9%
|
174
+9.5%
|
159
+15.9%
|
137
+16.1%
|
118
+40.6%
|
84
+113.8%
|
| Basic EPS |
1.68
+106.5%
|
0.94
-24.8%
|
1.25
+21.4%
|
1.03
+5.1%
|
0.98
-77.3%
|
4.31
+34.3%
|
3.21
+11.1%
|
2.89
+17.5%
|
2.46
+18.8%
|
2.07
+43.7%
|
1.44
+125.0%
|
| Diluted EPS |
1.67
+107.2%
|
0.93
-24.4%
|
1.23
+20.6%
|
1.02
+5.2%
|
0.97
-77.2%
|
4.26
+34.8%
|
3.16
+11.3%
|
2.84
+17.4%
|
2.42
+18.6%
|
2.04
+43.7%
|
1.42
+121.9%
|
| Weighted average shares, basic |
260
-2.2%
|
265
-1.0%
|
267
+0.5%
|
266
-0.8%
|
268
+395.8%
|
54
-0.3%
|
54
-1.4%
|
55
-1.2%
|
56
-2.2%
|
57
-2.2%
|
58
-4.5%
|
| Weighted average shares, diluted |
262
-2.6%
|
267
-1.1%
|
270
+0.7%
|
268
-1.0%
|
271
+395.3%
|
55
-0.6%
|
55
-1.6%
|
56
-1.2%
|
57
-2.3%
|
58
-1.8%
|
59
-4.2%
|
| Other measures | |||||||||||
| Depreciation and amortization |
58
-4.7%
|
58
-20.9%
|
74
+20.4%
|
61
+126.4%
|
27
+13.6%
|
24
-3.3%
|
25
-14.7%
|
29
-25.3%
|
39
-15.6%
|
46
+0.4%
|
46
+3.1%
|
| EBITDA |
669
+55.3%
|
467
-18.8%
|
574
+37.0%
|
419
+14.1%
|
367
+21.5%
|
303
+13.9%
|
266
+22.1%
|
218
-4.9%
|
229
-0.2%
|
229
+26.3%
|
181
+37.6%
|
| Interest coverage |
15.38x
|
10.05x
|
11.24x
|
—
|
—
|
—
|
—
|
—
|
—
|
—
|
—
|
| Margins | |||||||||||
| Gross margin |
18.78%
|
17.66%
|
16.67%
|
16.03%
|
16.43%
|
15.51%
|
14.91%
|
13.14%
|
12.97%
|
—
|
—
|
| Operating margin |
12.07%
|
7.50%
|
9.63%
|
7.92%
|
9.72%
|
8.67%
|
8.05%
|
6.07%
|
6.41%
|
—
|
—
|
| Pretax margin |
11.72%
|
6.94%
|
8.92%
|
8.87%
|
9.95%
|
8.30%
|
7.61%
|
5.64%
|
5.89%
|
—
|
—
|
| Profit margin |
8.61%
|
4.56%
|
6.41%
|
6.05%
|
7.51%
|
7.25%
|
5.81%
|
5.11%
|
4.62%
|
—
|
—
|
| EBITDA margin |
13.21%
|
8.57%
|
11.05%
|
9.27%
|
10.49%
|
9.41%
|
8.87%
|
7.00%
|
7.72%
|
—
|
—
|
| Effective tax rate |
26.50%
|
34.34%
|
28.05%
|
31.80%
|
24.54%
|
12.75%
|
23.73%
|
9.35%
|
21.54%
|
31.35%
|
32.63%
|
How these figures are calculated
Annual columns are full-year amounts from the annual report (Form 10-K, 20-F, or 40-F). If a company restates a year, the latest filed number is shown. USD in millions, except per-share amounts and margins. Weighted average shares are in millions. Interest expense and finance costs are positive costs. A negative amount on a gain (loss) or income (expense) line is a loss or an expense. EBITDA is operating income plus depreciation and amortization. Interest coverage is operating income divided by interest expense. The first column is the trailing twelve months through the latest quarter. More on our methodology.
New to this? Read How to Read an Income Statement, With a Real Example.
Company profile
- Industry
- Services-Engineering Services (SIC 8711)
- Listed as
- TTEK (Nasdaq)
- Fiscal year ends
- September 27
- Incorporated in
- DE
- Headquarters
- Pasadena, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 831641
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.