Defined Benefit (Pension) · DOL Form 5500 · 2023

National Grid USA Service Company, Inc. Pension Plan

Data updated 2026-08-25

$1.1B
Total assets Very large vs avg
3,577
Participants Above avg headcount
99th
Percentile by assets National rank
$319,412
Avg per participant High balance/head
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Official DOL plan name: Niagara Mohawk Pension Plan · Sponsored by National Grid USA Service Company, Inc. · New York · Utilities

$1.1B in assets, 3,577 participants

National Grid USA Service Company, Inc.'s Niagara Mohawk Pension Plan reported $1.1B in total assets and 3,577 participants in its 2023 DOL Form 5500 filing, ranking in the 99th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #649 in Utilities (721 peers)

Coverage in New York

Niagara Mohawk Pension Plan covers 3,577 participants in New York, 4.5x the typical New York plan (state average ~798 per filing). Assets: $1.1B.

#649
in Utilities (721 peers)
-0.8%
assets change YoY
11×
vs typical plan assets (national mean)

Niagara Mohawk Pension Plan's outsized position by total assets

Niagara Mohawk Pension Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$1,142,538,407 Top 1% higher than 99% of 127,068 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023

Niagara Mohawk Pension Plan's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Niagara Mohawk Pension Plan lands in the large band (3,577 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Niagara Mohawk Pension Plan reported net income rose from -$960M in the plan year 2022 filing to $43M in the plan year 2023 filing.
  • Niagara Mohawk Pension Plan reported participants rose from 3,535 in the plan year 2022 filing to 3,577 in the plan year 2023 filing.
  • Niagara Mohawk Pension Plan end-of-year assets fell from $1.2B in the plan year 2022 filing to $1.1B in the plan year 2023 filing.

See the national 2022→2023 release diff →

Plan-year Form 5500 strip

Filing strip 041663150 · National Grid USA Service Company, Inc. PY 2023 · Defined Benefit (Pension)

Niagara Mohawk Pension Plan · $1.1B · 3,577 · 99th

  • BOY $1.1B
  • SCH 3,577
  • EBSA 99th
  • PART Defined Benefit (Pension)
  • TYPE near Molson Coors Pension Plan
  • NET ind #649

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Utilities retirement plans → · Plans in New York →

Niagara Mohawk Pension Plan in the asset neighbourhood

Tribune Media Company Retirement PlanTribune Media Company Retire…$1.1BNiagara Mohawk Pension Plan$1.1BMolson Coors Pension Plan$1.1BCfg Pension Plan$1.1BUfcw Intl Union Pension Plan for EmployeesUfcw Intl Union Pension Plan…$1.1B
End-of-year total assets ($B) among Niagara Mohawk Pension Plan and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2023.

New York filing particulars

Total Assets (Beginning of Year)$1.2B
Net Assets (End of Year)$1.1B
Net Income$43M
Employer EIN041663150
Plan Effective Date1955-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (National Grid USA Service Company, Inc.)

Sponsor-wide plan assets over time

All National Grid USA Service Company, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$13.5B 5.030290688647641% vs 2022
2024 filing year
$12.6B$12.8B$13B$13.2B$13.4B$13.6B 202220232024 $12.8B $13.5B ▲ +5.0%
Year Plans Participants Total Assets
2022 7 30,556 $12.8B
2023 7 25,487 $13.0B
2024 7 26,129 $13.5B

Nearby Defined Benefit (Pension) Plans in New York

Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.

Niagara Mohawk Pension Plan vs. nearby Defined Benefit (Pension) plans in New York, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -100102030 Total assets ($B) Participants Niagara Mohawk Pension Plan, Total assets ($B): 1.142538407 · Participants: 3577Niagara Mohawk Pension PlanIBM Personal Pension Plan, Total assets ($B): 24.955758896 · Participants: 14881IBM Personal Pension PlanConsolidated Edison Retirement Plan, Total assets ($B): 16.184377155 · Participants: 10779Consolidated Edison Retirement Plan1199seiu Health Care Employees Pension Fund, Total assets ($B): 16.16620463 · Participants: 1075821199seiu Health Care Employees Pension FundPfizer Consolidated Pension Plan, Total assets ($B): 10.955262618 · Participants: 9616Pfizer Consolidated Pension PlanPepsico Employees Retirement Plan I, Total assets ($B): 7.599669 · Participants: 12289Pepsico Employees Retirement Plan I
Niagara Mohawk Pension Plan vs. nearby Defined Benefit (Pension) plans in New York, assets vs. participants
Compare Niagara Mohawk Pension Plan side-by-side with 3 peers →

Niagara Mohawk Pension Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside New York, the nearest Defined Benefit (Pension) by assets is Molson Coors Pension Plan in WI ($1.1B); by covered participants it is Graybar Electric Company, Inc. Pension Plan in MO (3,583 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.1B here).

Similar participant headcount

Nearest other-state filings by covered participants (3,577 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Niagara Mohawk Pension Plan assets move in 2023? ▼
Niagara Mohawk Pension Plan held essentially flat - down 0.8% during 2023, from $1.2B to $1.1B. Reported net income was $43M.
How have National Grid USA Service Company, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), National Grid USA Service Company, Inc.'s sponsor-wide assets grew 5.0%, from $12.8B to $13.5B.
Where does Niagara Mohawk Pension Plan rank by assets among Form 5500 filers? ▼
Niagara Mohawk Pension Plan ranks in the 99th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (among the largest 1% of all filed plans).
Which Defined Benefit (Pension) plans are similar in size to Niagara Mohawk Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is Molson Coors Pension Plan in WI ($1.1B, 1,511 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Niagara Mohawk Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is Graybar Electric Company, Inc. Pension Plan in MO (3,583 participants, $550M in assets).

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.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.