401(k) · DOL Form 5500 · 2023

Mainline Information Systems 401(k) Plan

Data updated 2026-08-25

$109M
Total assets Near avg plan size
357
Participants Below avg headcount
92nd
Percentile by assets National rank
$306,443
Avg per participant High balance/head
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Official DOL plan name: Mainline Information Systems 401(k) Plan · Sponsored by Mainline Information Systems · Florida · Professional & Technical Services

$109M in assets, 357 participants

Mainline Information Systems's Mainline Information Systems 401(k) Plan reported $109M in total assets and 357 participants in its 2023 DOL Form 5500 filing, ranking in the 92nd 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.

  • #18,901 in Professional & Technical Services (20,321 peers)

Where Mainline Information Systems 401(k) Plan sits by assets

Mainline Information Systems 401(k) Plan sits in the top 10% of all filed plans by assets, $109M for 357 participants (~$306,443/participant), up 17.1% in 2023.

#18,901
in Professional & Technical Services (20,321 peers)
+17.1%
assets growth YoY
1.1×
vs typical plan assets (national mean)

Mainline Information Systems 401(k) Plan's outsized position by total assets

Mainline Information Systems 401(k) Plan vs every filed plan by assets

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

$109,400,038 Top 8% higher than 92% 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

Mainline Information Systems 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. Mainline Information Systems 401(k) Plan sits mid-pack in the medium band (357 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Mainline Information Systems 401(k) Plan reported net income rose from -$23M in the plan year 2022 filing to $16M in the plan year 2023 filing.
  • Mainline Information Systems 401(k) Plan end-of-year assets rose from $93M in the plan year 2022 filing to $109M in the plan year 2023 filing.
  • Mainline Information Systems 401(k) Plan reported participants fell from 369 in the plan year 2022 filing to 357 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Published 5500 schedule card

Filing strip 592960721 · Mainline Information Systems PY 2023 · 401(k)

Mainline Information Systems 401(k) Plan · $109M · 357 · 92nd

  • IND $109M
  • EOY 357
  • 5500 92nd
  • ASSETS 401(k)
  • PCT near The Ogden Newspapers, Inc. 401(k) Plan
  • EIN ind #18901

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 Florida →

Mainline Information Systems 401(k) Plan in the asset neighbourhood

Cable Television Laboratories, Inc. Profit Sharing PlanCable Television Laboratorie…$109MCohesity, Inc. 401(k) Plan$109MUnivest Financial Corporation Deferred Salary Savings PlanUnivest Financial Corporatio…$109MMainline Information Systems 401(k) PlanMainline Information Systems…$109MThe Ogden Newspapers, Inc. 401(k) PlanThe Ogden Newspapers, Inc. 4…$109M
End-of-year total assets ($M) among Mainline Information Systems 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)$93M
Net Assets (End of Year)$109M
Net Income$16M
Employer EIN592960721
Plan Effective Date1997-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mainline Information Systems)

Sponsor-wide plan assets over time

All Mainline Information Systems plans reported in each filing year

Latest sponsor-wide plan assets
$124M 32.4584595850179% vs 2022
2024 filing year
$90M$100M$110M$120M$130M 202220232024 $93.4M $124M ▲ +32.5%
Year Plans Participants Total Assets
2022 1 369 $93M
2023 1 357 $109M
2024 1 419 $124M

Nearby 401(k) Plans in Florida

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

Mainline Information Systems 401(k) Plan vs. nearby 401(k) plans in Florida, assets vs. participants Scatter plot of 6 data points. -1000000100000200000300000400000 -505101520 Total assets ($B) Participants Mainline Information Systems 401(k) Plan, Total assets ($B): 0.109400038 · Participants: 357Mainline Information Systems 401(k) PlanL3harris Retirement Savings Plan, Total assets ($B): 15.384363901 · Participants: 40665L3harris Retirement Savings PlanSavings Plan for Employees and Partners of Pwc, Total assets ($B): 11.333196569 · Participants: 50817Savings Plan for Employees and Partners of PwcAdp Totalsource Retirement Savings Plan, Total assets ($B): 8.025816173 · Participants: 308867Adp Totalsource Retirement Savings PlanTrinet 401(k) Plan, Total assets ($B): 7.029692551 · Participants: 157945Trinet 401(k) PlanPublix Super Markets, Inc. 401(k) Smart Plan, Total assets ($B): 6.572590596 · Participants: 184674Publix Super Markets, Inc. 401(k) Smart Plan
Mainline Information Systems 401(k) Plan vs. nearby 401(k) plans in Florida, assets vs. participants
Compare Mainline Information Systems 401(k) Plan side-by-side with 3 peers →

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

Outside Florida, the nearest 401(k) by assets is The Ogden Newspapers, Inc. 401(k) Plan in WV ($109M); by covered participants it is Nexius Solutions, Inc. 401(k) Plan in DE (357 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (357 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 Mainline Information Systems 401(k) Plan assets move in 2023? ▼
Mainline Information Systems 401(k) Plan grew sharply - up 17.1% during 2023, from $93M to $109M. Reported net income was $16M.
How have Mainline Information Systems plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mainline Information Systems's sponsor-wide assets grew 32.5%, from $93M to $124M.
Where does Mainline Information Systems 401(k) Plan rank by assets among Form 5500 filers? ▼
Mainline Information Systems 401(k) Plan ranks in the 92nd 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 401(k) plans are similar in size to Mainline Information Systems 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is The Ogden Newspapers, Inc. 401(k) Plan in WV ($109M, 1,694 participants).
Which 401(k) plans cover a similar participant headcount to Mainline Information Systems 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Nexius Solutions, Inc. 401(k) Plan in DE (357 participants, $9M 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 592960721.

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.