Industries › Professional, scientific and technical services
Industry · Form 5500 business code 541990
All Other Professional, Scientific, & Technical 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.
2,075 retirement plans in all other professional, scientific, & technical services with 100 or more participants filed Form 5500 for plan year 2024 (2,031 defined contribution, 44 defined benefit). All Form 5500 pension filers in the group reported 4,527,194 participant records and $251.8B in net assets.
The median defined contribution plan held $51,368 per participant, close to the national median of $53,031, and its employer put in $2,498 per active participant (national: $2,174). Among plans reporting Schedule C compensation the median was $126 per participant against $123 nationally.
Employers contributed $6.51B and participants $15.8B during the year, and the plans paid out $22.5B in benefits.
In 2009 the same group numbered 1,576 plans with $57.1B; by 2024 it was 2,075 plans (up 32%) and $251.8B (up 341%). 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 | $51,368 | $53,031 | $181,228 | $86,234 |
| Employer contributions per active participant | $2,498 | $2,174 | $9,213 | $10,244 |
| Schedule C compensation per participant | $126 | $123 | $290 | $344 |
| Schedule C compensation, share of net assets | 0.29% | 0.26% | 0.29% | 0.42% |
| Administrative expenses per participant | $117 | $116 | $668 | $527 |
Medians across plans with 100 or more participants (1,919 DC and 44 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 | $25,224 | $51,368 | $88,180 | 1,919 |
| Employer contributions per active participant | $1,110 | $2,498 | $4,595 | 1,815 |
| Schedule C compensation per participant | $56.36 | $126 | $232 | 1,753 |
| Administrative expenses per participant | $48.86 | $117 | $224 | 1,873 |
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 | 320 | 497,067 | $50.2B | $1.13B | $2.45B | $68,258 | $170 |
| 2024 | 2,075 | 4,527,194 | $251.8B | $6.51B | $15.8B | $51,368 | $126 |
| 2023 | 2,057 | 4,473,300 | $220.2B | $6.33B | $14.8B | $44,241 | $107 |
| 2022 | 2,331 | 4,440,771 | $183.2B | $5.81B | $13.5B | $30,966 | $96.08 |
| 2021 | 2,193 | 4,401,711 | $208.8B | $5.14B | $11.1B | $37,699 | $104 |
| 2020 | 2,153 | 3,565,690 | $184.2B | $4.60B | $9.32B | $34,779 | $91.35 |
| 2019 | 2,036 | 3,006,877 | $154.9B | $4.31B | $8.00B | $31,192 | $79.66 |
| 2018 | 1,937 | 2,663,050 | $127.0B | $3.73B | $6.88B | $26,152 | $74.63 |
| 2017 | 1,888 | 2,599,019 | $129.6B | $3.72B | $5.97B | $28,624 | $62.37 |
| 2016 | 1,846 | 2,420,392 | $110.5B | $3.14B | $5.29B | $25,184 | $50.19 |
| 2015 | 1,758 | 2,202,384 | $96.6B | $3.59B | $4.65B | $23,990 | $44.51 |
| 2014 | 1,678 | 2,044,715 | $94.5B | $2.98B | $4.15B | $25,800 | $43.08 |
| 2013 | 1,617 | 2,048,246 | $88.4B | $2.63B | $3.83B | $24,465 | $29.31 |
| 2012 | 1,557 | 1,913,837 | $72.5B | $2.69B | $3.44B | $21,873 | $36.61 |
| 2011 | 1,550 | 1,823,567 | $66.3B | $2.79B | $3.31B | $19,132 | $37.24 |
| 2010 | 1,548 | 1,695,613 | $64.9B | $2.50B | $3.06B | $19,517 | $36.39 |
| 2009 | 1,576 | 1,742,986 | $57.1B | $2.68B | $2.92B | $16,928 | $30.91 |
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 2,085 plans on this page's list, by number of plans. A plan usually names several providers.
Largest plans
The 40 largest by participants of 2,085 plans with a page on this site.
| Plan | Sponsor | State | Type | Participants | Net assets | Per participant | Employer / active | Sch. C / participant |
|---|---|---|---|---|---|---|---|---|
| Amazon 401(k) Plan | Amazon.com Services, LLC | WA | DC | 1,343,800 | $34.6B | $25,742 | $759 | $5.02 |
| Express Employment Professionals 401(k) Retirement Savings Plan | Express Services, Inc. | OK | DC | 400,441 | $2.5M | $6 | $0 | $0.04 |
| Unitedhealth Group 401(k) Savings Plan | Unitedhealth Group Incorporated | MN | DC | 262,812 | $30.3B | $115,375 | $3,650 | $16.21 |
| Insperity 401(k) Plan | Insperity Holdings, Inc. | TX | DC | 231,912 | $9.38B | $40,467 | $2,437 | $40.78 |
| The Adecco Group 401(k) Plan | Adecco, Inc. | FL | DC | 70,422 | $874M | $12,416 | $106 | $16.58 |
| Maximus, Inc. 401(k) Plan | Maximus, Inc. | VA | DC | 44,037 | $913M | $20,736 | $924 | $9.30 |
| Pilot Catastrophe Services, Inc. 401(k) Profit Sharing Plan | Pilot Catastrophe Services Inc. | AL | DC | 38,839 | $155M | $3,995 | $26 | $10.40 |
| Unifi Aviation 401(k) Retirement Plan | Unifi Aviation, LLC | GA | DC | 33,875 | $121M | $3,572 | $118 | $9.72 |
| The Members Retirement Plan | Trustees of the Members Retirement Plan | IL | DC | 31,309 | $694M | $22,151 | — | $39.13 |
| Providence Administrative Consulting Services Inc. 401(k) Profit Sharing Plan and Trust | Providence Administrative Consulting Services Inc. | UT | DC | 30,857 | $199M | $6,440 | $103 | $11.37 |
| Baxter International Inc. and Subsidiaries U.S. Retirement Savings Plan | Baxter International Inc. | IL | DC | 29,847 | $4.58B | $153,492 | $6,749 | $117 |
| Peraton Corp. Retirement Savings Plan | Peraton Corp. | VA | DC | 26,938 | $2.52B | $93,580 | $5,581 | $55.03 |
| International Union of Journeymen and Allied Trades 401(k) Retirement Plan | Board of Trustees of Iujat 401(k) Retirement Trust | CT | DC | 26,780 | $139M | $5,207 | $297 | $35.58 |
| Ttec 401(k) Profit Sharing Plan | Ttec Services Corporation | CO | DC | 22,761 | $344M | $15,124 | $482 | $37.72 |
| Nextep 401(k) Retirement Savings Plan | 899210-01 Nextep, Inc. | OK | DC | 21,230 | $566M | $26,666 | $1,106 | $143 |
| NTT Data Americas 401(k) Plan | NTT Data Americas, Inc. | TX | DC | 20,376 | $2.90B | $142,157 | $2,165 | $67.92 |
| Bloomberg L.P. 401(k) Plan | Bloomberg L.P. | NY | DC | 20,110 | $5.73B | $285,094 | $6,201 | $12.24 |
| Arctic Slope Regional Corporation and Subsidiaries Employees Retirement Plan | Arctic Slope Regional Corporation | AK | DC | 19,858 | $1.49B | $75,242 | $2,583 | $32.99 |
| The Mitre Corporation Tax Sheltered Annuity Plan | The Mitre Corporation | MA | DC | 19,699 | $5.12B | $260,110 | $2,183 | $62.00 |
| Pension Plan of General Atomics | General Atomics | CA | DB | 19,371 | $1.02B | $52,704 | $6,757 | $213 |
| Maximus Gsa Retirement Plan | Maximus, Inc. | VA | DC | 19,076 | $21.8M | $1,141 | $154 | $5.83 |
| R1 RCM Holdco Inc. 401(k) Plan | R1 RCM Holdco Inc. | UT | DC | 18,646 | $665M | $35,647 | $1,567 | $68.71 |
| Group Management Services, Inc. 401(k) Profit Sharing Plan & Trust | Group Management Services, Inc. | OH | DC | 18,123 | $420M | $23,154 | $1,160 | $83.90 |
| Space Exploration Technologies 401(k) Plan | Space Exploration Technologies Corp. | CA | DC | 17,996 | $571M | $31,752 | $0 | $18.68 |
| Wayfair LLC 401(k) Plan & Trust | Wayfair LLC | MA | DC | 17,988 | $786M | $43,702 | $2,172 | $33.45 |
| The Mitre Corporation Qualified Retirement Plan | The Mitre Corporation | MA | DC | 17,147 | $2.81B | $163,658 | $9,181 | $22.59 |
| Triad 401(k) Retirement Plan | Triad National Security, LLC | NM | DC | 16,432 | $2.49B | $151,659 | $11,553 | $57.61 |
| General Atomics 401(k) Retirement Savings Plan | General Atomics | CA | DC | 16,399 | $2.77B | $168,623 | $4,442 | $93.11 |
| Kforce 401(k) Retirement Savings Plan | Kforce Inc. | FL | DC | 16,302 | $283M | $17,346 | $134 | $22.84 |
| The Savannah River Nuclear Solutions, LLC Multiple Employer Pension Plan | Savannah River Nuclear Solutions, LLC | SC | DB | 15,689 | $3.70B | $235,729 | — | $32.21 |
| Schlumberger Technology Corporation Pension Plan | Schlumberger Technology Corporation | TX | DB | 15,574 | $3.38B | $216,746 | — | — |
| Westinghouse Electric Company Savings Plan | Westinghouse Electric Company LLC | PA | DC | 15,193 | $2.09B | $137,663 | $3,191 | $113 |
| SWBC Professional Employer Services 401(k) Plan | SWBC Professional Employer Services V, LLC | TX | DC | 13,911 | $201M | $14,467 | $640 | $68.35 |
| Charles River Laboratories, Inc. Savings/plus Plan | Charles River Laboratories, Inc. | MA | DC | 13,643 | $1.07B | $78,704 | $3,340 | $87.10 |
| Battelle Employees' Savings Plan | Battelle Memorial Institute | OH | DC | 13,617 | $3.40B | $249,558 | $5,874 | $141 |
| The Savannah River Nuclear Solutions, LLC Defined Contribution Plan | Savannah River Nuclear Solutions, LLC | SC | DC | 12,923 | $2.83B | $218,961 | $8,005 | $53.74 |
| Staffing Alternatives 401(k) Plan | Gregory Evan, Inc. d/b/a Staffing Alternatives | NJ | DC | 12,725 | $4.2M | $330 | $16 | — |
| Lifestance Health 401(k) Plan | Lifestance Health, Inc. | AZ | DC | 12,474 | $295M | $23,680 | $1,707 | $12.20 |
| Alight Solutions LLC 401(k) Plan (Fka Hewitt Associates LLC 401(k) Plan) | Alight Solutions LLC | IL | DC | 11,234 | $2.61B | $232,345 | $3,297 | $286 |
| LLNS 401(k) Retirement Plan | Lawrence Livermore National Security LLC | CA | DC | 10,965 | $2.50B | $227,859 | $14,698 | $71.22 |
By plan size
By state
Questions and answers
How many retirement plans are there in all other professional, scientific, & technical services?
2,075 plans with 100 or more participants filed Form 5500 for plan year 2024, out of 3,884 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 all other professional, scientific, & technical services?
The median defined contribution plan reported $51,368 in net assets per participant (middle half of plans: $25,224 to $88,180); 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 all other professional, scientific, & technical services?
The median defined contribution plan received $2,498 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 all other professional, scientific, & technical services?
Among defined contribution plans that report any Schedule C compensation, the median was $126 per participant and 0.29% 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.