v3.25.4
EMPLOYEE BENEFIT PLANS (Tables)
 12 Months Ended
Dec. 31, 2025
Retirement Benefits [Abstract]  
Summary of Plan Information Relating to Participation in Multiemployer Pension Plans
The following table summarizes plan information relating to Quanta’s participation in multiemployer defined benefit pension plans, including company contributions for the last three years, the status of the plans under the PPA and whether the plans are subject to a funding improvement or rehabilitation plan or contribution surcharges. The most recent PPA zone status available in 2025 and 2024 generally relates to the plans’ fiscal year-ends in 2024 and 2023. Forms 5500 were not yet available for the plan years ending in 2025. The PPA zone status is based on information that Quanta received from the respective plans’ administrators, as well as publicly available information on the U.S. Department of Labor website, and is certified by each plan’s actuary. Although multiple factors or tests may result in red zone or yellow zone status, plans in the red zone generally are less than 65 percent funded, plans in the yellow zone generally are less than 80 percent funded, and plans in the green zone generally are at least 80 percent funded. Under the PPA, red zone plans are classified as “critical” status, yellow zone plans are classified as “endangered” status and green zone plans are classified as neither “endangered” nor “critical” status. The “Subject to Financial Improvement/ Rehabilitation Plan” column indicates plans for which a financial improvement plan or a rehabilitation plan is either pending or has been implemented. The last column lists the expiration dates of Quanta’s collective-bargaining agreements to which the plans are subject. Total contributions to these plans correspond to the number of union employees employed at any given time and the plans in which they participate and vary depending upon the location and number of ongoing projects at a given time and the need for union resources in connection with such projects, as well as changes in contractual employer contribution rates. Information has been presented separately for individually significant plans, based on PPA funding status classification, and in the aggregate for all other plans.
Employee Identification Number/ Pension Plan NumberPPA Zone StatusSubject to Financial Improve- ment/ Reha- bilitation PlanContributions (in thousands)Sur-charge ImposedExpiration Date of Collective Bargaining Agreement
Fund20252024202520242023
National Electrical Benefit Fund53-0181657GreenGreenN$61,338 $41,321 $47,126 NVaries through May 2030
Eighth District Electrical Pension Fund84-6100393GreenGreenN17,295 13,820 6,169 NVaries through August 2027
Excavators Union Local 731 Pension Fund13-1809825GreenGreenN13,823 11,974 11,411 NApril 2026
IBEW 332 Pension Plan - Part A94-2688032GreenGreenN9,711 8,404 — NMay 2027
Central Pension Fund of the IUOE & Participating Employers36-6052390GreenGreenN9,543 8,496 7,396 NVaries through March 2030
IBEW Local 683 Pension Fund Pension Plan34-1442087GreenGreenN9,347 5,828 731 NMay 2027
Indiana Laborers Pension Fund35-6027150GreenGreenN5,556 512 — NVaries through March 2027
Locals 302 & 612 of the IUOE - Employers Construction Industry Retirement Plan91-6028571GreenGreenN4,564 3,644 2,707 NVaries through May 2028
Sheet Metal Workers' National Pension Fund52-6112463GreenGreenN4,215 — — NVaries through April 2029
IBEW Local 595 Pension Plan94-6279541GreenGreenN3,325 2,367 — NMay 2026
Pipeline Industry Benefit Fund73-6146433GreenGreenN2,990 2,478 2,733 NVaries through May 2026
Operating Engineers' Local 324 Pension Fund38-1900637RedRedY2,906 3,367 3,193 YVaries through May 2026
United Association National Pension Fund52-6152779GreenGreenN2,667 1,461 — NVaries through August 2029
Laborers Pension Trust Fund for Northern California94-6277608GreenGreenN2,651 3,468 3,342 NVaries through June 2027
Local 697 I.B.E.W. and Electrical Industry Pension Plan51-6133048GreenGreenN2,580 3,228 2,227 NMay 2028
NECA-IBEW Pension Trust Fund51-6029903GreenGreenN2,505 1,850 — NVaries through June 2028
Laborers National Pension Fund75-1280827RedRedY2,380 1,205 746 YVaries through November 2028
Construction Laborers Pension Trust Fund for Southern California43-6159056GreenGreenN2,248 1,764 2,729 NVaries through June 2026
Central Laborers' Pension Fund37-6052379GreenYellowN2,087 1,484 2,342 NVaries through March 2030
Pension Trust Fund for Operating Engineers94-6090764GreenGreenN2,075 2,504 2,176 NVaries through June 2026
Southern California IBEW-NECA Pension Plan95-6392774YellowYellowY1,995 460 — NJune 2026
Alaska Teamster-Employer Pension Trust92-6003463RedRedY1,899 1,222 80 YMay 2026
Alaska Plumbing and Pipefitting Industry Pension Plan52-6103810RedRedY1,867 986 83 YMay 2026
Local Union No. 124 I.B.E.W. Pension Trust Fund 43-0817626GreenGreenN1,855 5,836 — NDecember 2027
Operating Engineers Pension Trust95-6032478GreenGreenN310 871 1,473 NVaries through June 2028
Kern County Electrical Workers Pension Fund95-6123049GreenGreenN273 2,675 325 NNovember 2027
Employer - Teamsters Local NOs 175 & 505 Pension Trust Fund55-6021850RedRedY— 900 1,027 YMay 2026
All other plans - U.S.52,286 45,158 39,233 
All other plans - Canada (1)
2,403 6,473 12,515 
Total contributions$226,694 $183,756 $149,764 
(1)    Multiemployer defined benefit pension plans in Canada are not subject to the reporting requirements under the PPA. Accordingly, certain information was not publicly available.
Quanta’s contributions to the following individually significant plans were five percent or more of the total contributions to these plans for the periods indicated based on the Forms 5500 for these plans for the years ended December 31, 2024 and 2023. Forms 5500 were not yet available for these plans for the year ended December 31, 2025.
Pension FundPlan Years in which Quanta Contributions Were Five Percent or More of Total Plan Contributions
National Electrical Benefit Fund2023
Eighth District Electrical Pension Fund 2024 and 2023
Excavators Union Local 731 Pension Fund2024 and 2023
IBEW 332 Pension Plan - Part A2024
IBEW Local 683 Pension Fund Pension Plan2024
IBEW Local 595 Pension Plan2024
Pipeline Industry Pension Fund 2024 and 2023
Local 697 I.B.E.W. and Electrical Industry Pension Plan2024 and 2023
Alaska Plumbing and Pipefitting Industry Pension Plan2024
Local Union No. 124 I.B.E.W. Pension Trust Fund 2024
Kern County Electrical Workers Pension Fund2024
I.B.E.W. Local 456 Pension Plan (1)
2024 and 2023
Teamsters National Pipe Line Pension Plan (1)
2024 and 2023
(1)    This plan is included in the “All other plans - U.S.” category in the prior table.
Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits by Title of Individual and Type of Deferred Compensation
Changes in the fair market value of Quanta’s COLI assets and deferred compensation liabilities largely offset and are recorded in the accompanying statements of operations as follows (in thousands):
Year Ended December 31,
ClassificationChange in fair market value of202520242023
Increase in Selling, general and administrative expenses
Deferred compensation liabilities$(16,586)$(14,108)$(13,325)
Other income, net
COLI assets$14,290 $12,446 $11,587