401(k) · DOL Form 5500 · 2023

Amperity, Inc. 401(k) Plan

Data updated 2026-08-25

$19M
Total assets Small plan by assets
364
Participants Below avg headcount
72nd
Percentile by assets National rank
$52,681
Avg per participant Low balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Amperity 401(k) Plan · Sponsored by Amperity, Inc. · Washington · Professional & Technical Services

$19M in assets, 364 participants

Amperity, Inc.'s Amperity 401(k) Plan reported $19M in total assets and 364 participants in its 2023 DOL Form 5500 filing, ranking in the 72nd 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.

  • #14,534 in Professional & Technical Services (20,321 peers)

Coverage in Washington

Amperity 401(k) Plan covers 364 participants in Washington, about 25% of the average Washington filer (state average ~1,476 per filing). Assets: $19M.

#14,534
in Professional & Technical Services (20,321 peers)
+63.9%
assets growth YoY

Amperity 401(k) Plan's outsized position by total assets

Amperity 401(k) Plan vs every filed plan by assets

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

$19,175,725 Top 28% higher than 72% 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

Amperity 401(k) 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. Amperity 401(k) Plan sits mid-pack in the medium band (364 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Amperity 401(k) Plan reported net income rose from $2M in the plan year 2022 filing to $7M in the plan year 2023 filing.
  • Amperity 401(k) Plan end-of-year assets rose from $12M in the plan year 2022 filing to $19M in the plan year 2023 filing.
  • Amperity 401(k) Plan reported participants rose from 264 in the plan year 2022 filing to 364 in the plan year 2023 filing.

See the national 2022→2023 release diff →

DOL schedule card

Filing strip 810890699 · Amperity, Inc. PY 2023 · 401(k)

Amperity 401(k) Plan · $19M · 364 · 72nd

  • EOY $19M
  • EOY 364
  • EOY 72nd
  • EOY 401(k)
  • EOY near Toole Design Group 401(k) Profit Sharing Plan and Trust
  • EOY ind #14534

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 Washington →

Amperity 401(k) Plan in the asset neighbourhood

Amperity 401(k) Plan$19MIvalua, Inc. 401(k) Plan$19MToole Design Group 401(k) Profit Sharing Plan and TrustToole Design Group 401(k) Pr…$19MGateway Health Clinic, Ltd. 401(k) Profit Sharing PlanGateway Health Clinic, Ltd. …$19MNational Employee Management Resources Retirement Savings PlanNational Employee Management…$19M
End-of-year total assets ($M) among Amperity 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Washington filing particulars

Total Assets (Beginning of Year)$12M
Net Assets (End of Year)$19M
Net Income$7M
Employer EIN810890699
Plan Effective Date2016-09-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Amperity, Inc.)

Sponsor-wide plan assets over time

All Amperity, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$26M 125.66167420887207% vs 2022
2024 filing year
$10M$15M$20M$25M$30M 202220232024 $11.7M $26.4M ▲ +125.6%
Year Plans Participants Total Assets
2022 1 264 $12M
2023 1 364 $19M
2024 1 313 $26M

Nearby 401(k) Plans in Washington

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

Amperity 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000250000 -20020406080 Total assets ($B) Participants Amperity 401(k) Plan, Total assets ($B): 0.019175725 · Participants: 364Amperity 401(k) PlanThe Boeing Company 401(k) Retirement Plan, Total assets ($B): 72.246135158 · Participants: 128910The Boeing Company 401(k) Retirement PlanMicrosoft Corporation Savings Plus 401(k) Plan, Total assets ($B): 53.225853429 · Participants: 123296Microsoft Corporation Savings Plus 401(k) PlanCostco 401(k) Retirement Plan, Total assets ($B): 33.384845813 · Participants: 192744Costco 401(k) Retirement PlanT-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust, Total assets ($B): 8.338937292 · Participants: 71538T-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust401(k) Savings Plan, Total assets ($B): 8.118808679 · Participants: 87590401(k) Savings Plan
Amperity 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants
Compare Amperity 401(k) Plan side-by-side with 3 peers →

Amperity 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Washington, the nearest 401(k) by assets is Toole Design Group 401(k) Profit Sharing Plan and Trust in MD ($19M); by covered participants it is Marathon Sports LLC 401(k) Profit Sharing Plan & Trust in MA (364 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (364 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 Amperity 401(k) Plan assets move in 2023? ▼
Amperity 401(k) Plan surged - up 63.9% during 2023, from $12M to $19M. Reported net income was $7M.
How have Amperity, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Amperity, Inc.'s sponsor-wide assets grew 125.7%, from $12M to $26M.
Which 401(k) plans are similar in size to Amperity 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Toole Design Group 401(k) Profit Sharing Plan and Trust in MD ($19M, 263 participants).
Which 401(k) plans cover a similar participant headcount to Amperity 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Marathon Sports LLC 401(k) Profit Sharing Plan & Trust in MA (364 participants, $2M 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 810890699.

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.