2024 plan-year Industry rank #3 of 21 DOL Form 5500

Professional & Technical Services Retirement Plans

21,045 ERISA-covered retirement plans in the Professional & Technical Services industry, holding $1.4T for 10,022,259 participants per 2024 Form 5500 filings.

$1.4T across 21,045 plans

According to DOL Form 5500 filings (plan year 2024), the Professional & Technical Services industry sponsors 21,045 ERISA-covered retirement plans holding $1.4T for 10,022,259 participants, ranking #3 of 21 industries by plan assets, with 79.9% structured as 401(k)s.

  • #3 of 21 industries
  • 79.9% 401(k) plans

The industry in one line

Professional & Technical Services sponsors 21,045 ERISA-covered retirement plans holding $1.4T for 10,022,259 participants, the 3rd-largest industry by plan assets.

$1.4T
total plan assets
21,045
employer plans
$67M
average plan size
79.9%
of plans are 401(k)s
Plans
21,045
401(k) Plans
16,807
79.9% of plans
Total Assets
$1.4T
Participants
10,022,259

What the Professional & Technical Services Industry Plan Filings Show

The Professional & Technical Services industry sponsors 21,045 ERISA-covered retirement plans according to 2024 Form 5500 filings, ranking #3 of 21 industries on PlainRetire by total plan assets. Within the industry, 79.9% of plans are 401(k) defined-contribution arrangements (16,807 plans), with the remainder split across defined-benefit pension plans, profit-sharing arrangements, ESOPs, and money-purchase plans. The average plan in Professional & Technical Services holds $67M in end-of-year assets and covers 476 participants.

Industry-level totals reflect aggregate sponsor disclosures on Form 5500 Schedule H and Schedule I and provide a useful frame for benchmarking individual employer plans. They are not a substitute for plan-specific Summary Plan Description review when evaluating any single plan. Industry classification is self-reported by sponsors based on the primary economic activity of the sponsoring employer. Plans whose sponsor industry has changed across years (mergers, restructurings) carry the most-recent classification on file.

Plan Type Breakdown (Professional & Technical Services)

Plan Type Plans Participants Total Assets
401(k) 16,807 9,169,352 $1.2T
Defined Benefit (Pension) 493 268,497 $110.2B
ESOP 1,183 214,280 $37.9B
Other 258 127,371 $31.5B
Profit Sharing 2,084 179,875 $25.6B
Money Purchase 219 62,884 $16.8B
IRA-Based 1 N/A N/A

Largest Professional & Technical Services Plans by Assets

Top 30 Professional & Technical Services retirement plans ranked by 2024 end-of-year total assets.

# Plan Sponsor State Type Participants Assets
1 IBM 401(k) Plan International Business Machines Corporation NY 401(k) 52,674 $60.4B
2 Amazon 401(k) Plan Amazon.Com Services, LLC WA 401(k) 1,209,303 $34.6B
3 Oracle Corporation 401(k) Savings and Investment Plan Oracle Corporation CA 401(k) 58,962 $31.0B
4 Unitedhealth Group 401(k) Savings Plan Unitedhealth Group Incorporated MN 401(k) 205,460 $26.6B
5 Accenture United States 401(k) Match and Savings Plan Accenture LLP IL 401(k) 66,965 $21.3B
6 Ernst & Young Retirement Savings Plan Ernst & Young U.S. LLP NJ 401(k) 56,714 $18.3B
7 IBM Personal Pension Plan International Business Machines Corporation NY Defined Benefit (Pension) 48,014 $17.9B
8 Savings Plan for Employees and Partners of Pwc Pwc US Group LLP FL 401(k) 51,081 $13.2B
9 Leidos, Inc. Retirement Plan Leidos, Inc. VA 401(k) 29,734 $11.8B
10 Kpmg 401(k) Capital Accumulation Plan Kpmg LLP NJ 401(k) 37,063 $10.5B
11 McKinsey & Company, Inc. (Psrp) Profit Sharing Retirement Plan McKinsey & Company, Inc. NY 401(k) 17,700 $9.8B
12 Insperity 401(k) Plan Insperity Holdings, Inc. TX 401(k) 177,779 $9.4B
13 Booz Allen Hamilton Inc. Employees' Capital Accumulation Plan Booz Allen Hamilton Inc. VA 401(k) 34,650 $9.3B
14 Adp Totalsource Retirement Savings Plan Adp Totalsource Group, Inc. FL 401(k) 310,261 $9.2B
15 Trinet 401(k) Plan Trinet Hr III, Inc. CA 401(k) 220,583 $8.7B
16 Hdr, Inc. Best Plan and ESOP Hdr, Inc. NE 401(k) 11,460 $7.7B
17 Schlumberger Technology Corporation Savings and Retirement Plan Schlumberger Technology Corporation TX 401(k) 16,929 $7.4B
18 Ntess Savings and Income Plan National Technology & Engineering Solutions of Sandia, LLC NM 401(k) 15,926 $7.2B
19 Aecom Retirement & Savings Plan AECOM TX 401(k) 17,785 $6.8B
20 Jacobs 401(k) Plus Savings Plan Jacobs Engineering Group Inc. TX 401(k) 15,962 $6.4B
21 Ntess Retirement Income Plan National Technology & Engineering Solutions of Sandia, LLC NM Defined Benefit (Pension) 3,323 $6.2B
22 Bloomberg L.P. 401(k) Plan Bloomberg L.P. NY 401(k) 14,760 $5.7B
23 Retirement Wealth Builder Plan of Pwc Pwc US Group LLP FL Profit Sharing 45,185 $5.7B
24 Triad Defined Benefit Pension Plan Triad National Security, LLC NM Defined Benefit (Pension) 2,018 $5.6B
25 Burns & Mcdonnell, Inc. Employee Stock Ownership Plan Burns & Mcdonnell, Inc MO ESOP 9,902 $5.5B
26 Science Applications International Corporation Retirement Plan Science Applications International Corporation VA 401(k) 18,057 $5.4B
27 Publicis Benefits Connection 401(k) Plan Mms USA Holdings, Inc. IL 401(k) 27,733 $5.2B
28 Fiserv 401(k) Savings Plan Fiserv Solutions, LLC. WI 401(k) 26,372 $5.1B
29 The Mitre Corporation Tax Sheltered Annuity Plan The Mitre Corporation VA Other 12,379 $5.1B
30 Parsons Employee Stock Ownership Plan Parsons Corporation CA ESOP 8,040 $5.0B

Nationwide industries with similar retirement plan scale

Two DOL Form 5500-derived peer sets for Professional & Technical Services: nearest tracked industries by plan filing count (21,045 plans here) and nearest by aggregate plan assets ($1.4T here). Rows stay link-disjoint so each axis is a distinct neighborhood.

Similar plan count

Nearest other industries by reported employer plan filings.

Similar total assets

Nearest other industries by aggregate end-of-year plan assets (plan-count peers above are excluded).

Questions about Professional & Technical Services plans

How many retirement plans are in the Professional & Technical Services industry? ▼
Professional & Technical Services sponsors 21,045 ERISA-covered retirement plans according to 2024 Form 5500 filings, including 16,807 401(k) plans (79.9% of plans in the industry). Total assets across all plans in the industry sum to $1.4T, covering 10,022,259 participants.
What's the average plan size in the Professional & Technical Services industry? ▼
The average Professional & Technical Services retirement plan holds $67M in assets and covers 476 participants. This is an arithmetic mean across all 21,045 plans in the industry, actual plan sizes vary widely, with a small number of very large plans pulling the average up. See the table above for the largest plans by assets.
Where does this industry data come from? ▼
Industry classification comes from each plan sponsor's Form 5500 filing with the U.S. Department of Labor's Employee Benefits Security Administration (EBSA). Sponsors self-classify into one of approximately 20 industry categories based on the primary economic activity of the sponsoring employer. The category labels follow the DOL plan-sponsor industry taxonomy.
What plan types are most common in the Professional & Technical Services industry? ▼
In Professional & Technical Services, the most common plan type by total assets is 401(k) (16,807 plans, $1.2T in assets). Other common types include: Defined Benefit (Pension) (493), ESOP (1,183), Other (258).

Related guides

See also these PlainRetire explainers for interpreting Form 5500 industry totals and comparing plans.

Explore from Professional & Technical Services

Information & Media

Closest peer by total plan assets ($647.6B, 2,937 plans)
IBM 401(k) Plan

Largest Professional & Technical Services plan on file · $60.4B
401(k)

Dominant type here by assets · 16,807 plans, $1.2T
All industries

Industry #3 of 21 by total Form 5500 plan assets

What to do with Professional & Technical Services plan data

21,045 plans across the Professional & Technical Services sector offer a baseline for benchmarking your own plan.

Industry classification is self-reported by plan sponsors on Form 5500. Plans may span multiple sectors.

Source: U.S. Department of Labor EBSA Form 5500 public-disclosure dataset, 2024 plan year. Industry classification self-reported by sponsors.

Reference: IRS Publication 560, Retirement Plans for Small Business.

Every figure on PlainRetire is rendered directly from the Department of Labor's Form 5500 annual return filings, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-25.