How to Find 401(k) Plans Without an Advisor, Using Public Form 5500 Data

Updated 2026-10-05 · By the team at FiduciarySignal · Markdown version
To find 401(k) plans without an advisor, read each plan's Form 5500 Schedule C, the service-provider schedule. The Department of Labor's instructions code advisory work as 16 and 17 (consulting), 26 and 27 (investment advisory, for participants or for the plan) and 28 (investment management), so a 401k plan whose Schedule C lists none of those codes shows no advisor on its filing. Treat that as a lead to check, not a fact: small plans file no Schedule C, and an advisor paid under $5,000, paid only through eligible indirect compensation, or paid by the employer directly may never appear.

Source: 2025 Instructions for Form 5500, including the Schedule C instructions (U.S. Department of Labor, read 2026-10-05).

Most 401(k) prospecting is about replacing someone. This search looks for plans whose public filing shows nobody to replace. The public record gets you surprisingly close at no cost, if you know which schedule to open and which codes to read. It also has blind spots big enough to embarrass you on a call, so this guide covers the method and then the limits.

Where an advisor shows up on a Form 5500

The answer lives on Schedule C, Service Provider Information. Per the DOL's instructions, Schedule C must be attached to a Form 5500 filed for a large pension or welfare benefit plan, and Part I lists each person who received $5,000 or more in direct or indirect compensation in connection with services to the plan, starting with the most highly compensated. Each provider on line 2 carries DOL codes for the service it provided and how it was paid, and the instructions state that the Schedule C and its attachments are open to public inspection.

DOL codeDOL label (2025 instructions)What it tells a prospecting advisor
16Consulting (general)A consultant was paid by the plan; read the name to see what kind
17Consulting (pension)A retirement plan consultant was paid by the plan
26Investment advisory (participants)Someone advises employees on their own accounts
27Investment advisory (plan)Someone advises the plan itself, typically on the fund menu
28Investment managementSomeone manages plan money; this can be a mutual fund's own investment adviser, so read the name
22 and 33Insurance agents and brokers; Securities brokerageA commission-paid representative may be listed here instead of under 26 or 27
51, 52, 55, 63, 70Investment management fees paid directly by plan; paid indirectly by plan; Other commissions; Distribution (12b-1) fees; Consulting feesCompensation codes: how the provider on that line was paid

Source: the Element (b) code list in the 2025 Instructions for Schedule C (Form 5500) (read 2026-10-05). Use the DOL list itself, not a vendor's summary of it; code lists copied from secondary sources drift.

Step by step: build a list of plans with no advisor on file

The joining is the real work: providers, codes and filings arrive in separate files, and the job repeats every year. More on reading a filing is in Form 5500 prospecting, and on looking up a single plan in Form 5500 search.

Why "no advisor on Schedule C" does not mean "no advisor"

The truth is, the filing answers a narrower question than the one you are asking. It shows the providers the plan was required to report, under rules written for disclosure, not for prospecting. Six gaps matter:

Source: 2025 Instructions for Form 5500 and 2025 Instructions for Form 5500-SF (read 2026-10-05).

Per the DOL's Private Pension Plan Bulletin, Abstract of 2023 Form 5500 Annual Reports (January 2026, read 2026-10-05), 641,689 of 724,720 401(k)-type plans, about 89%, had fewer than 100 participants. That is the size band that generally files as a small plan, without a Schedule C.

So this list is smaller than the search phrase suggests. For larger plans, Schedule C is a real, checkable screen. For most small plans, the filing cannot answer the question, and the reliable source is the sponsor.

Does a 401(k) plan without an advisor need one?

Not every one, and that is worth respecting. Some sponsors get investment help the filing does not show; some handle it themselves. The Department of Labor's guide Meeting Your Fiduciary Responsibilities puts it plainly: "Lacking that expertise, a fiduciary will want to hire someone with that professional knowledge to carry out the investment and other functions." The same guide notes that "hiring a service provider in and of itself is a fiduciary function" (read 2026-10-05).

That gives you an honest opening. For a plan that filed a Schedule C, lead with what you read: "I was going through your plan's public Form 5500 and didn't see an investment adviser on the service-provider schedule. Who helps your committee with the fund lineup today?" If the answer is a name, you have found the filing's blind spot and you still have a real conversation. If the answer is nobody, you are talking about adding help, not replacing anyone.

How FiduciarySignal makes the check fast

Full disclosure: FiduciarySignal is ours, and it is paid software. Inside it, you skip the joining. The 401(k) Report Card grades any plan from its own Form 5500, including administrative cost against comparable peers, participation, red flags and the provider roster, and it includes the Form 5500 signer's contact details. The check this guide describes, read the providers and find who signed, becomes one page per plan instead of a PDF and a code table. Territory search pulls the plans in a ZIP, a radius or a whole state, and CSV exports of call lists and searches come with the annual plan.

The Change Predictor answers a different question: it ranks the plans in your territory most likely to change providers. It was back-tested against the next year's Form 5500 filings and is strongest at the top of the list, a calling order rather than a certainty about any single plan. Flagged plans come with talking points and a ready outreach email. Pricing is published on our pricing page: FiduciarySignal is $90 a month after a 7-day free trial, or $900 a year. Built on public DOL EFAST2 data; not affiliated with the Department of Labor.

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Frequently asked questions

How do I find 401(k) plans without an advisor?

Open the plan's Form 5500 Schedule C and look for providers coded 16 or 17 (consulting), 26 or 27 (investment advisory) or 28 (investment management). If a large plan's Schedule C lists none of them, no advisor appears on its filing. To do it across a territory, download the DOL's Form 5500 and Schedule C service-code datasets and filter. Then verify each plan before you call.

Source: 2025 Instructions for Form 5500 and the DOL Form 5500 Datasets page (read 2026-10-05).

Which Schedule C codes identify a 401k advisor?

The DOL's 2025 instructions list 16 Consulting (general), 17 Consulting (pension), 26 Investment advisory (participants), 27 Investment advisory (plan) and 28 Investment management. A commission-paid representative may appear instead as 22 Insurance agents and brokers or 33 Securities brokerage. Read the name as well as the code.

Source: 2025 Instructions for Schedule C (Form 5500), Element (b) code list (read 2026-10-05).

Why can't I see an advisor on a small 401(k) plan's filing?

Because small plans, generally those under 100 participants at the beginning of the plan year, do not file Schedule C. They file the Form 5500-SF or a Form 5500 with Schedule I. In 2023, 641,689 of 724,720 401(k)-type plans, about 89%, had fewer than 100 participants, per the DOL's Private Pension Plan Bulletin.

Source: 2025 Instructions for Form 5500-SF and Private Pension Plan Bulletin, Abstract of 2023 Form 5500 Annual Reports (read 2026-10-05).

If Schedule C shows no advisor, does the plan have no advisor?

Not necessarily. Providers paid under $5,000 need not be listed, a provider paid only through eligible indirect compensation can appear on line 1 without service codes, fees the employer pays itself are not reported, and the filing describes a plan year that has already ended. Ask the sponsor.

Source: 2025 Instructions for Schedule C (Form 5500) (read 2026-10-05).

Can I find 401k plans with no advisor using free public data?

Yes. The DOL publishes the Form 5500 and Schedule C service-code datasets on its Form 5500 Datasets page, typically updated around the first of each month, and individual filings can be viewed through EFAST2. What it costs you is time: the data comes in separate files you join yourself, every year.

Source: DOL Form 5500 Datasets page and 2025 Instructions for Form 5500-SF, which lists viewing filings posted by EFAST2 (read 2026-10-05).

How much does FiduciarySignal cost?

FiduciarySignal's monthly plan is $90 a month after a 7-day free trial, with a card at checkout and the first charge on day 8. FiduciarySignal's annual plan is $900 a year, billed in full today, with no trial, and it adds CSV exports. Both are self-serve on the pricing page.

Skip the code tables. See any plan's provider roster and signer on one page.

Built on 8.9M public Form 5500 filings. Back-tested against the next year's filings. Self-serve.

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