401(k) · DOL Form 5500 · 2024

Ameresco, Inc. 401(k) Plan

Data updated 2026-08-25

$252M
Total assets Near avg plan size
1,241
Participants Near avg headcount
95th
Percentile by assets National rank
$202,717
Avg per participant Above avg balance/head
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Official DOL plan name: Ameresco, Inc. 401(k) Plan · Sponsored by Ameresco, Inc. · Massachusetts · Professional & Technical Services

$252M in assets, 1,241 participants

Ameresco, Inc.'s Ameresco, Inc. 401(k) Plan reported $252M in total assets and 1,241 participants in its 2024 DOL Form 5500 filing, ranking in the 95th 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.

  • #19,421 in Professional & Technical Services (20,173 peers)

Where Ameresco, Inc. 401(k) Plan sits by assets

Ameresco, Inc. 401(k) Plan sits in the top 5% of all filed plans by assets, $252M for 1,241 participants (~$202,717/participant), up 15.2% in 2024.

#19,421
in Professional & Technical Services (20,173 peers)
+15.2%
assets growth YoY
2.5×
vs typical plan assets (national mean)

Ameresco, Inc. 401(k) Plan's outsized position by total assets

Ameresco, Inc. 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$251,571,198 Top 5% higher than 95% of 123,620 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 2024

Ameresco, Inc. 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Ameresco, Inc. 401(k) Plan lands in the large band (1,241 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Ameresco, Inc. 401(k) Plan reported net income fell from $45M in the plan year 2023 filing to $33M in the plan year 2024 filing.
  • Ameresco, Inc. 401(k) Plan end-of-year assets rose from $218M in the plan year 2023 filing to $252M in the plan year 2024 filing.
  • Ameresco, Inc. 401(k) Plan reported participants rose from 1,195 in the plan year 2023 filing to 1,241 in the plan year 2024 filing.

See the national 2023→2024 release diff →

EBSA filing schedule strip

Filing strip 043512838 · Ameresco, Inc. PY 2024 · 401(k)

Ameresco, Inc. 401(k) Plan · $252M · 1,241 · 95th

  • EBSA $252M
  • EBSA 1,241
  • EBSA 95th
  • EBSA 401(k)
  • EBSA near Cambridge Information Group, Inc. 401(k) Retirement Plan
  • EBSA ind #19421

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 Professional & Technical Services retirement plans → · Plans in Massachusetts →

Ameresco, Inc. 401(k) Plan in the asset neighbourhood

Mckinstry Co. Profit Sharing and 401(k) PlanMckinstry Co. Profit Sharing…$252MAmeresco, Inc. 401(k) Plan$252MCambridge Information Group, Inc. 401(k) Retirement PlanCambridge Information Group,…$252MKnorr Brake 401(k) Retirement and Savings PlanKnorr Brake 401(k) Retiremen…$252MThe Nordam Group LLC 401(k) Retirement PlanThe Nordam Group LLC 401(k) …$251M
End-of-year total assets ($M) among Ameresco, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$218M
Net Assets (End of Year)$252M
Net Income$33M
Employer EIN043512838
Plan Effective Date2000-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Ameresco, Inc.)

Sponsor-wide plan assets over time

All Ameresco, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$252M 44.777104086242794% vs 2022
2024 filing year
$150M$200M$250M$300M 202220232024 $174M $252M ▲ +44.8%
Year Plans Participants Total Assets
2022 1 1,126 $174M
2023 1 1,195 $218M
2024 1 1,241 $252M

Nearby 401(k) Plans in Massachusetts

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Ameresco, Inc. 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants Ameresco, Inc. 401(k) Plan, Total assets ($B): 0.251571198 · Participants: 1241Ameresco, Inc. 401(k) PlanFidelity Retirement Savings Plan, Total assets ($B): 34.201609937 · Participants: 66907Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 11.352606499 · Participants: 34618Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 7.720373045 · Participants: 14762Massachusetts Institute of Technology Supplemental 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 6.775289067 · Participants: 20639Boston Scientific Corporation 401(k) Retirement Savings PlanState Street Salary Savings Program, Total assets ($B): 6.532301643 · Participants: 12777State Street Salary Savings Program
Ameresco, Inc. 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Ameresco, Inc. 401(k) Plan side-by-side with 3 peers →

Ameresco, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Cambridge Information Group, Inc. 401(k) Retirement Plan in MD ($252M); by covered participants it is Msci Inc. 401(k) Retirement Savings Plan in NY (1,241 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (1,241 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Ameresco, Inc. 401(k) Plan assets move in 2024? ▼
Ameresco, Inc. 401(k) Plan grew sharply - up 15.2% during 2024, from $218M to $252M. Reported net income was $33M.
How have Ameresco, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Ameresco, Inc.'s sponsor-wide assets grew 44.8%, from $174M to $252M.
Where does Ameresco, Inc. 401(k) Plan rank by assets among Form 5500 filers? ▼
Ameresco, Inc. 401(k) Plan ranks in the 95th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Ameresco, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Cambridge Information Group, Inc. 401(k) Retirement Plan in MD ($252M, 318 participants).
Which 401(k) plans cover a similar participant headcount to Ameresco, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Msci Inc. 401(k) Retirement Savings Plan in NY (1,241 participants, $430M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 043512838.

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.