Defined Benefit (Pension) · DOL Form 5500 · 2023

Unitil Service Corp. Pension Plan

Data updated 2026-08-25

$164M
Total assets Near avg plan size
178
Participants Small participant base
94th
Percentile by assets National rank
$920,271
Avg per participant High balance/head
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Official DOL plan name: Unitil Corporation Retirement Plan · Sponsored by Unitil Service Corp. · New Hampshire · Utilities

$164M in assets, 178 participants

Unitil Service Corp.'s Unitil Corporation Retirement Plan reported $164M in total assets and 178 participants in its 2023 DOL Form 5500 filing, ranking in the 94th 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.

  • #490 in Utilities (721 peers)

Utilities sector rank

Within Utilities, Unitil Corporation Retirement Plan ranks #490 of 721 2023 filers by assets (328% of the sector average)-$164M for 178 participants.

#490
in Utilities (721 peers)
+10.6%
assets growth YoY
1.6×
vs typical plan assets (national mean)

Unitil Corporation Retirement Plan's outsized position by total assets

Unitil Corporation Retirement Plan vs every filed plan by assets

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

$163,808,215 Top 6% higher than 94% 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

Unitil Corporation Retirement Plan among mid-size filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Unitil Corporation Retirement Plan sits mid-pack in the medium band (178 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Unitil Corporation Retirement Plan reported net income rose from -$28M in the plan year 2022 filing to $16M in the plan year 2023 filing.
  • Unitil Corporation Retirement Plan reported participants fell from 207 in the plan year 2022 filing to 178 in the plan year 2023 filing.
  • Unitil Corporation Retirement Plan end-of-year assets rose from $148M in the plan year 2022 filing to $164M in the plan year 2023 filing.

See the national 2022→2023 release diff →

Form 5500 schedule snapshot

Filing strip 020383661 · Unitil Service Corp. PY 2023 · Defined Benefit (Pension)

Unitil Corporation Retirement Plan · $164M · 178 · 94th

  • RANK $164M
  • PHOTO 178
  • IND 94th
  • EOY Defined Benefit (Pension)
  • 5500 near Credit Agricole Corporate and Investment Bank Retirement Plan
  • ASSETS ind #490

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 Hampshire →

Unitil Corporation Retirement Plan in the asset neighbourhood

Dana Combined Hourly Employees' Pension PlanDana Combined Hourly Employe…$164MCredit Agricole Corporate and Investment Bank Retirement PlanCredit Agricole Corporate an…$164MUnitil Corporation Retirement PlanUnitil Corporation Retiremen…$164MCng Pension Plan$163MNon-Contributory Retirement Program for Certain Employees of Blue Cross & Blue Shield of MississippiNon-Contributory Retirement …$163M
End-of-year total assets ($M) among Unitil Corporation Retirement Plan and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2023.

Utilities filing particulars

Total Assets (Beginning of Year)$148M
Net Assets (End of Year)$164M
Net Income$16M
Employer EIN020383661
Plan Effective Date1985-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Unitil Service Corp.)

Sponsor-wide plan assets over time

All Unitil Service Corp. plans reported in each filing year

Latest sponsor-wide plan assets
$179M 20.66690325879232% vs 2022
2024 filing year
$140M$150M$160M$170M$180M$190M 202220232024 $148M $179M ▲ +20.7%
Year Plans Participants Total Assets
2022 1 207 $148M
2023 1 178 $164M
2024 1 167 $179M

Nearby Defined Benefit (Pension) Plans in New Hampshire

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

Unitil Corporation Retirement Plan vs. nearby Defined Benefit (Pension) plans in New Hampshire, assets vs. participants Scatter plot of 6 data points. 01000200030004000 0200400600800 Total assets ($M) Participants Unitil Corporation Retirement Plan, Total assets ($M): 163.808215 · Participants: 178Unitil Corporation Retirement PlanPension Plan for Employees of Dartmouth-Hitchcock, Total assets ($M): 625.683263 · Participants: 1514Pension Plan for Employees of Dartmouth-HitchcockRetirement Plan for Employees of Concord Hospital, Total assets ($M): 379.810141 · Participants: 3425Retirement Plan for Employees of Concord HospitalElliot Health System Pension Plan, Total assets ($M): 277.808703 · Participants: 520Elliot Health System Pension PlanCatholic Medical Center Pension Plan, Total assets ($M): 221.250544 · Participants: 397Catholic Medical Center Pension PlanOsram Sylvania Pension Plan, Total assets ($M): 220.988013 · Participants: 275Osram Sylvania Pension Plan
Unitil Corporation Retirement Plan vs. nearby Defined Benefit (Pension) plans in New Hampshire, assets vs. participants
Compare Unitil Corporation Retirement Plan side-by-side with 3 peers →

Unitil Corporation Retirement Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside New Hampshire, the nearest Defined Benefit (Pension) by assets is Credit Agricole Corporate and Investment Bank Retirement Plan in NY ($164M); by covered participants it is St. Ann's Home for the Aged Pension Plan in NY (178 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (178 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 Unitil Corporation Retirement Plan assets move in 2023? ▼
Unitil Corporation Retirement Plan grew at a solid clip - up 10.6% during 2023, from $148M to $164M. Reported net income was $16M.
How have Unitil Service Corp. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Unitil Service Corp.'s sponsor-wide assets grew 20.7%, from $148M to $179M.
Where does Unitil Corporation Retirement Plan rank by assets among Form 5500 filers? ▼
Unitil Corporation Retirement Plan ranks in the 94th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 10% of all filed plans by assets).
Which Defined Benefit (Pension) plans are similar in size to Unitil Corporation Retirement Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is Credit Agricole Corporate and Investment Bank Retirement Plan in NY ($164M, 172 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Unitil Corporation Retirement Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is St. Ann's Home for the Aged Pension Plan in NY (178 participants, $46M 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 020383661.

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.