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Industry · Form 5500 business code 561110
Office Administrative Services: retirement plans
Plans whose sponsor entered this principal business activity code on Form 5500.
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances. The business code is chosen by the filer from the list in the Form 5500 instructions.
265 retirement plans in office administrative services with 100 or more participants filed Form 5500 for plan year 2024 (250 defined contribution, 15 defined benefit). All Form 5500 pension filers in the group reported 467,609 participant records and $16.6B in net assets.
The median defined contribution plan held $28,190 per participant, well below the national median of $53,031, and its employer put in $1,591 per active participant (national: $2,174). Among plans reporting Schedule C compensation the median was $109 per participant against $123 nationally.
Employers contributed $685M and participants $970M during the year, and the plans paid out $1.60B in benefits.
In 2009 the same group numbered 165 plans with $3.66B; by 2024 it was 265 plans (up 61%) and $16.6B (up 353%). From plan year 2023 the 100-participant line counts participants with account balances, which moved many plans to the short form.
Medians compared with all US plans
| Median plan, plan year 2024 | Industry: DC | US: DC | Industry: DB | US: DB |
|---|---|---|---|---|
| Net assets per participant | $28,190 | $53,031 | $90,625 | $86,234 |
| Employer contributions per active participant | $1,591 | $2,174 | $13,119 | $10,244 |
| Schedule C compensation per participant | $109 | $123 | $350 | $344 |
| Schedule C compensation, share of net assets | 0.43% | 0.26% | 0.48% | 0.42% |
| Administrative expenses per participant | $112 | $116 | $562 | $527 |
Medians across plans with 100 or more participants (228 DC and 15 DB plans with a Schedule H here). Fee medians cover plans reporting an amount. DC: defined contribution, such as 401(k) and 403(b). DB: defined benefit pension.
Distribution of DC plans
| Measure | 25th percentile | Median | 75th percentile | Plans |
|---|---|---|---|---|
| Net assets per participant | $12,713 | $28,190 | $53,295 | 228 |
| Employer contributions per active participant | $691 | $1,591 | $3,265 | 217 |
| Schedule C compensation per participant | $50.69 | $109 | $209 | 206 |
| Administrative expenses per participant | $49.10 | $112 | $201 | 224 |
Trend by plan year
| Plan year | Plans 100+ | Participants | Net assets | Employer contributions | Participant contributions | Median DC assets / participant | Median DC Sch. C / participant |
|---|---|---|---|---|---|---|---|
| 2025partial | 35 | 27,687 | $1.33B | $37.2M | $113M | $45,471 | $125 |
| 2024 | 265 | 467,609 | $16.6B | $685M | $970M | $28,190 | $109 |
| 2023 | 250 | 349,335 | $13.9B | $570M | $766M | $28,249 | $95.95 |
| 2022 | 280 | 268,834 | $9.75B | $447M | $515M | $16,937 | $80.34 |
| 2021 | 245 | 233,267 | $9.95B | $447M | $383M | $20,951 | $82.76 |
| 2020 | 230 | 217,286 | $8.52B | $359M | $321M | $22,662 | $83.23 |
| 2019 | 230 | 189,377 | $7.11B | $351M | $283M | $19,833 | $60.90 |
| 2018 | 206 | 184,228 | $6.61B | $411M | $226M | $17,751 | $56.12 |
| 2017 | 201 | 172,204 | $6.13B | $295M | $218M | $18,073 | $49.00 |
| 2016 | 199 | 184,713 | $6.07B | $321M | $170M | $15,459 | $53.05 |
| 2015 | 184 | 172,742 | $5.50B | $303M | $168M | $15,437 | $42.13 |
| 2014 | 184 | 177,775 | $5.77B | $274M | $147M | $15,602 | $40.14 |
| 2013 | 173 | 175,209 | $5.51B | $253M | $139M | $14,935 | $29.81 |
| 2012 | 167 | 153,699 | $4.37B | $219M | $123M | $12,059 | $35.87 |
| 2011 | 169 | 163,283 | $4.10B | $204M | $118M | $10,799 | $45.64 |
| 2010 | 166 | 168,661 | $4.06B | $178M | $107M | $10,689 | $37.45 |
| 2009 | 165 | 139,145 | $3.66B | $177M | $99.3M | $10,126 | $34.21 |
Plan year is the year in which the plan year began. The drop in large plans from 2023 follows a rule change: the 100-participant line now counts participants with account balances, so many plans moved to the short form.
Provider share
Service provider organisations named most often on the Schedule C of the 264 plans on this page's list, by number of plans. A plan usually names several providers.
Largest plans
The 40 largest by participants of 264 plans with a page on this site.
| Plan | Sponsor | State | Type | Participants | Net assets | Per participant | Employer / active | Sch. C / participant |
|---|---|---|---|---|---|---|---|---|
| Successwise Pooled Employer Plan | Plan Professionals, LLC | NJ | DC | 77,246 | $1.47B | $19,046 | $746 | $75.06 |
| Isolved 401-K Plan | Plan Professionals, LLC | NJ | DC | 51,743 | $465M | $8,984 | $496 | $63.50 |
| Open PEP | Plan Professionals, LLC | NJ | DC | 20,927 | $354M | $16,930 | $604 | $132 |
| Buildwise | Plan Professionals, LLC | NJ | DC | 16,629 | $650M | $39,074 | $2,145 | $128 |
| Laborers District Council of W PA Pension Fund | Laborers District Council of W PA Pension Fund Board of Trustees | PA | DB | 16,000 | $947M | $59,197 | $11,777 | $292 |
| SHC Services, Inc. 401(k) Plan | SHC Services, Inc. | UT | DC | 11,865 | $97.8M | $8,244 | $0 | $25.93 |
| MB2 Dental Solutions 401(k) Plan | MB2 Dental Solutions | TX | DC | 10,338 | $170M | $16,404 | $0 | $11.52 |
| Your 401(k) Plan | Plan Professionals, LLC | NJ | DC | 8,694 | $46.1M | $5,299 | $206 | $21.90 |
| Athenahealth, Inc. 401(k) Plan | Athenahealth, Inc. | MA | DC | 6,793 | $827M | $121,685 | $3,542 | $64.25 |
| Western States Office & Professional Employees Pen | Western States Office & Professional Emp | CA | DB | 6,631 | $601M | $90,625 | $15,954 | $340 |
| America's Healthcare Employee Retirement PEP | Plan Professionals, LLC | NJ | DC | 6,527 | $18.9M | $2,902 | $20 | $43.24 |
| Accruewise PEP | Plan Professionals, LLC | NJ | DC | 5,874 | $129M | $21,955 | $2,904 | $115 |
| My HR Pros 401(k) Plan | My HR Pros | AR | DC | 5,485 | $79.6M | $14,517 | $524 | $67.71 |
| Central Arkansas Nursing Centers, Inc. 401(k) Plan and Trust | Central Arkansas Nursing Centers, Inc. | AR | DC | 5,464 | $12.5M | $2,287 | $28 | $30.05 |
| Firstsource 401(k) Retirement Plan | Firstsource Group U.S.A., Inc. | KY | DC | 5,410 | $73.8M | $13,646 | $369 | $60.52 |
| Premier 401(k) Pooled Employer Plan | Plan Professionals, LLC | NJ | DC | 5,366 | $16.6M | $3,096 | $185 | $32.50 |
| Muckleshoot Retirement Plan | Muckleshoot Indian Tribe | WA | DC | 4,839 | $260M | $53,737 | $3,193 | $54.33 |
| Hope Network Employee 403(b) Plan | Hope Network | MI | DC | 4,631 | $54.6M | $11,786 | $321 | $43.85 |
| NPPG Retirement Select 100+PEP | Plan Professionals, LLC | NJ | DC | 4,398 | — | — | — | — |
| Sheet Metal Workers Pension Fund of Local Union No. 19 | Sheet Metal Workers Pension Fund of Local Union | PA | DB | 4,207 | $519M | $123,310 | $23,182 | $841 |
| Sheet Metal Workers Annuity Fund Local Union No. 19 | BD of Trustees of the SMW Annuity Fund | PA | DC | 4,109 | $474M | $115,353 | $7,311 | $160 |
| Sheet Metal Workers Local 17 Annuity Income Fund | Sheet Metal Workers Local No. 17 Annuity Income Fund | MA | DC | 4,044 | $656M | $162,156 | $9,490 | $510 |
| Millennium International Management LP Savings Plan | Millennium International Management LP | NY | DC | 3,931 | $690M | $175,628 | $3,292 | $37.75 |
| Delight Restaurant Group 401(k) Plan | Delight Raleigh Management LLC | KS | DC | 3,679 | $8.9M | $2,430 | $92 | $21.27 |
| PEP Smart National Pooled Employer Plan | Plan Professionals, LLC | NJ | DC | 3,609 | $62.5M | $17,328 | $683 | $108 |
| Open PEP 2 | Plan Professionals LLC | NJ | DC | 3,558 | $145M | $40,686 | $1,447 | $221 |
| Conservice, LLC 401(k) Profit Sharing Plan and Trust | Conservice, LLC | UT | DC | 3,433 | $67.7M | $19,709 | $920 | $52.28 |
| Office & Professional Employees Retirement Plan | Board of Trustees Office & Professional Employees Ret Plan | OR | DC | 3,307 | $34.5M | $10,428 | $859 | $117 |
| Medspeed, LLC 401(k) Profit Sharing Plan & Trust | Medspeed, LLC | IL | DC | 3,268 | $13.9M | $4,252 | $75 | $42.28 |
| CMS Savings Plan and Trust | Covenant Management Systems, LP | TX | DC | 3,214 | $414M | $128,869 | $2,852 | $138 |
| Personify Health, Inc. 401(k) Plan | Personify Health, Inc. | AZ | DC | 3,166 | $177M | $56,034 | $1,494 | $167 |
| Premier Resources, LLC 401(k) Plan | Premier Resources, LLC | MI | DC | 3,036 | $5.2M | $1,700 | $24 | $11.44 |
| Masonic Villages of the Grand Lodge of Pennsylvania 403(b) Plan | Masonic Villages of the Grand Lodge of Pennsylvania | PA | DC | 2,968 | $165M | $55,591 | $1,571 | $53.58 |
| DTTS Pension Plan | Deloitte Touche Tohmatsu Services, LLC | NY | DB | 2,808 | $248M | $88,185 | $10,734 | $234 |
| Life-Science Innovations and Affiliates Retirement Plan | Life-Science Innovations, LLC | MN | DC | 2,654 | $104M | $39,247 | $1,508 | $113 |
| Pursue Health LLC Retirement Savings Plan | Pursue Health LLC | CA | DC | 2,638 | $17.4M | $6,582 | $0 | $80.00 |
| Isolved 401(k) Plan | Isolved, Inc. | NC | DC | 2,566 | $109M | $42,329 | $1,896 | $55.86 |
| Medhq, LLC 401(k) Plan | Medhq, LLC | IL | DC | 2,448 | $45.4M | $18,536 | $2,745 | $139 |
| Health Group Management, LLC 401(k) Plan | Health Group Management, LLC | CA | DC | 2,388 | $12.1M | $5,055 | $386 | $4.07 |
| DTTS 401(k) Plan | Deloitte Touche Tohmatsu Services, LLC | NY | DC | 2,283 | $526M | $230,604 | $4,427 | $119 |
By plan size
By state
Questions and answers
How many retirement plans are there in office administrative services?
265 plans with 100 or more participants filed Form 5500 for plan year 2024, out of 465 pension plans on the full form. Smaller plans file Form 5500-SF and are counted separately where shown.
What is the typical 401(k) balance in office administrative services?
The median defined contribution plan reported $28,190 in net assets per participant (middle half of plans: $12,713 to $53,295); nationally it was $53,031. This is a plan-level average that includes former employees, not a typical person's balance.
What do employers contribute in office administrative services?
The median defined contribution plan received $1,591 in employer contributions per active participant, against $2,174 nationally. Plans with no employer contribution are included at zero.
What are average 401(k) fees in office administrative services?
Among defined contribution plans that report any Schedule C compensation, the median was $109 per participant and 0.43% of net assets (nationally $123 and 0.26%). Schedule C leaves out fund expense ratios and fees the employer pays, so it understates total cost.
Where does this come from?
Form 5500 annual reports in the EBSA research files, with filings received through 24 Aug 2026. Medians are computed by this site across plans with 100 or more participants.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files, public domain, with filings received through 24 Aug 2026. Totals count every pension plan on the full form; medians and the plan list cover plans with 100 or more participants. See the methodology.