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SEGMENT AND GEOGRAPHICAL INFORMATION - Statement of Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 03, 2025 | Jul. 04, 2025 | Apr. 04, 2025 | Sep. 27, 2024 | Jun. 28, 2024 | Mar. 29, 2024 | Oct. 03, 2025 | Sep. 27, 2024
Segment reconciliation |  |  |  |  |  |  |  |
Contract revenue | $ 182,006 |  |  | $ 158,252 |  |  | $ 507,865 | $ 421,737
Direct subcontractor services and other direct costs | 87,039 |  |  | 82,563 |  |  | 232,592 | 204,667
Direct salaries and wages | 27,878 |  |  | 24,088 |  |  | 82,198 | 69,247
Gross profit | 67,089 |  |  | 51,601 |  |  | 193,075 | 147,823
Other indirect costs | 48,314 |  |  | 39,211 |  |  | 145,504 | 116,403
EBITDA | 19,105 |  |  | 13,153 |  |  | 48,411 | 33,713
Interest expense, net | 902 |  |  | 1,934 |  |  | 4,890 | 6,031
Depreciation and amortization | 3,913 |  |  | 3,716 |  |  | 13,857 | 10,937
Segment profit (loss) before income tax expense | 14,290 |  |  | 7,503 |  |  | 29,664 | 16,745
Income tax (benefit) expense | 569 |  |  | 157 |  |  | (4,180) | 1,863
Net Income (Loss) | 13,721 | $ 15,436 | $ 4,687 | 7,346 | $ 4,594 | $ 2,942 | 33,844 | 14,882
Energy |  |  |  |  |  |  |  |
Segment reconciliation |  |  |  |  |  |  |  |
Contract revenue | 154,750 |  |  | 134,036 |  |  | 427,747 | 352,634
Direct subcontractor services and other direct costs | 85,536 |  |  | 81,805 |  |  | 228,410 | 202,015
Direct salaries and wages | 17,169 |  |  | 14,212 |  |  | 49,886 | 40,430
Gross profit | 52,045 |  |  | 38,019 |  |  | 149,451 | 110,189
Depreciation and amortization | 3,451 |  |  | 3,337 |  |  | 12,346 | 9,800
Engineering and Consulting |  |  |  |  |  |  |  |
Segment reconciliation |  |  |  |  |  |  |  |
Contract revenue | 27,256 |  |  | 24,216 |  |  | 80,118 | 69,103
Direct subcontractor services and other direct costs | 1,503 |  |  | 758 |  |  | 4,182 | 2,652
Direct salaries and wages | 10,709 |  |  | 9,876 |  |  | 32,312 | 28,817
Gross profit | 15,044 |  |  | 13,582 |  |  | 43,624 | 37,634
Depreciation and amortization | 462 |  |  | 379 |  |  | 1,511 | 1,137
Operating Segments | Energy |  |  |  |  |  |  |  |
Segment reconciliation |  |  |  |  |  |  |  |
Other indirect costs | 35,793 |  |  | 28,532 |  |  | 106,219 | 84,874
EBITDA | 16,269 |  |  | 9,513 |  |  | 42,518 | 25,686
Segment profit (loss) before income tax expense | 12,818 |  |  | 6,176 |  |  | 30,173 | 15,886
Income tax (benefit) expense | 1,109 |  |  | (25) |  |  | (4,252) | 1,767
Net Income (Loss) | 11,709 |  |  | 6,202 |  |  | 34,424 | 14,119
Operating Segments | Engineering and Consulting |  |  |  |  |  |  |  |
Segment reconciliation |  |  |  |  |  |  |  |
Other indirect costs | 9,878 |  |  | 8,924 |  |  | 29,507 | 26,884
EBITDA | 5,165 |  |  | 4,658 |  |  | 14,112 | 10,745
Segment profit (loss) before income tax expense | 4,702 |  |  | 4,280 |  |  | 12,600 | 9,608
Income tax (benefit) expense | 665 |  |  | 85 |  |  | (1,775) | 1,069
Net Income (Loss) | 4,038 |  |  | 4,194 |  |  | 14,376 | 8,539
Corporate, Non-Segment |  |  |  |  |  |  |  |
Segment reconciliation |  |  |  |  |  |  |  |
Other indirect costs | 2,643 |  |  | 1,755 |  |  | 9,778 | 4,645
EBITDA | (2,329) |  |  | (1,018) |  |  | (8,219) | (2,718)
Interest expense, net | 902 |  |  | 1,934 |  |  | 4,890 | 6,031
Segment profit (loss) before income tax expense | (3,230) |  |  | (2,953) |  |  | (13,109) | (8,749)
Income tax (benefit) expense | (1,205) |  |  | 97 |  |  | 1,847 | (973)
Net Income (Loss) | $ (2,026) |  |  | $ (3,050) |  |  | $ (14,956) | $ (7,776)

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