401(k)
2023 plan-year 401(k) DOL Form 5500

NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN

ERISA Form 5500 plan record drawn from DOL EBSA — verify with linked source filings below.

NATIONAL GRID USA SERVICE COMPANY, INC.

This 401(k) plan holds $5.9B in total assets and serves 16,248 participants as of 2023. It is sponsored by NATIONAL GRID USA SERVICE COMPANY, INC. in New York. The plan reported positive net income of $688M for the year.

Total Assets (2023)
$5.9B
Participants
16,248
State
Industry
Utilities

What the Filing Says About NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN

NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN is a 401(k) retirement plan sponsored by NATIONAL GRID USA SERVICE COMPANY, INC., headquartered in New York. As of the 2023 Form 5500 filing, the plan reports $5.9B in total end-of-year assets and covers 16,248 participants across the Utilities industry. The sponsor's EIN on file with the U.S. Department of Labor is 041663150, and the plan has been effective since 1984-09-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets moved from $5.2B at the beginning of 2023 to $5.9B at year-end — a gain of 13.2%. Net assets (after liabilities) closed the year at $5.9B, with reported net income of $688M driven by investment returns, contributions received, and benefit payments during the period. These figures reflect what the plan administrator certified on Schedule H or Schedule I of the Form 5500 annual return and can be compared against 2 prior plan-year filings from the same sponsor shown below.

Asset totals and participant counts reflect a single plan year snapshot and can change materially with market conditions, plan mergers, or workforce changes. Fields such as "net income" include both realized investment performance and contribution/distribution flows — a single-year figure does not by itself indicate plan health or participant outcomes. This page summarizes public DOL disclosures for research and educational purposes only and is not retirement, tax, legal, or financial advice. Before making decisions about your own retirement benefits or evaluating an employer's plan, verify the underlying filing directly via the DOL EFAST2 system and consult a qualified professional.

Financial Summary (2023)

Total Assets (Beginning of Year)$5.2B
Total Assets (End of Year)$5.9B
Net Assets (End of Year)$5.9B
Net Income$688M
Plan Type401(k)
Employer EIN041663150
Plan Effective Date1984-09-01
Filing StatusFILING RECEIVED

Sponsor Plan History (NATIONAL GRID USA SERVICE COMPANY, INC.)

Year Plans Participants Total Assets
2022 7 30,556 $12.8B
2023 7 25,487 $13.0B
2024 7 26,129 $13.5B

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Frequently Asked Questions

How much money is in the NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN?
As of the 2023 Form 5500 filing, NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN holds $5.9B in total assets with 16,248 participants. It is sponsored by NATIONAL GRID USA SERVICE COMPANY, INC..
What type of plan is NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN?
NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN is a 401(k) plan. It has been effective since 1984-09-01. The plan is filed with the U.S. Department of Labor under EIN 041663150.
Who sponsors the NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN?
NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN is sponsored by NATIONAL GRID USA SERVICE COMPANY, INC., located in New York. The sponsor's EIN is 041663150 and the plan operates in the Utilities industry.
How did NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN perform in 2023?
NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN grew by 13.2% during 2023, moving from $5.2B to $5.9B in total assets. Net income was $688M.
Where can I find official filings for NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN?
Official Form 5500 filings for NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN are available through the U.S. Department of Labor's EFAST2 system. Search by EIN 041663150 or plan name at efast.dol.gov.
How does NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN compare to other plans?
You can compare NATIONAL GRID USA CO. INCENTIVE THRIFT PLAN against other 401(k) plans on the plan type page, or view plans in New York on the state page. PlainRetire tracks the 5,000 largest retirement plans in the U.S. by total assets.

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Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) — original filing retrieval by EIN 041663150.

Reference: IRS Publication 560 — Retirement Plans for Small Business, contribution-limit rules.

Reference: IRS Publication 590-B — Distributions from IRAs, RMD rules under SECURE Act 2.0.

Data sourced from official public datasets. See our methodology for details.