Introduction
A 3(21) advisor and a 3(38) fiduciary may chase the same 401(k) market, but they sell different things. The authority differs. So does the sponsor relationship, and so does the promise you can honestly make.
This guide covers lead generation aimed at plan sponsors, employers, investment committees, HR leaders, and benefits decision-makers. It does not cover participant leads.
According to a Morgan Stanley survey, 55% of large for-profit sponsors used a 3(21) adviser and 27% used a 3(38). Both models have real demand. Below: define each model, match it to a distinct message, and build a process to attract, qualify, and convert.
Key Takeaways
- Lead 3(21) outreach with investment guidance, committee collaboration, and informed decisions.
- Win 3(38) interest by stressing full delegation, a documented process, and less day-to-day burden.
- Segment campaigns by sponsor needs, governance, and desired control.
- Judge appointments by decision-maker access, model fit, and intent, not contact volume.
What Does 3(21) vs. 3(38) Mean?
Both designations come from ERISA. Both roles carry fiduciary obligations: act prudently and solely in participants' interests, within the scope of the engagement. The Department of Labor treats fiduciary status as functional: it depends on the functions performed, not the title alone.
3(21): the advising co-fiduciary
A 3(21) fiduciary evaluates the plan, recommends investments, and supports the investment policy statement (IPS) and monitoring. The sponsor or committee keeps final decision-making authority.
3(38): the discretionary manager
A 3(38) investment manager has authority to select, monitor, and replace plan investments within the agreed scope. The manager must acknowledge fiduciary status in writing. Responsibility for those investment decisions can shift to the manager. The sponsor still must prudently select and monitor the provider.
Side-by-side comparison
| Factor | 3(21) | 3(38) |
|---|---|---|
| Decision authority | Sponsor decides | Manager decides within scope |
| Sponsor involvement | High; committee votes | Lower; oversees the manager |
| Investment liability | Shared; sponsor retains decisions | Shifts for delegated decisions; sponsor keeps selection and monitoring duties |
| Typical buyer concern | Control, cost | Bandwidth, expertise, liability |
| Key documentation | Advisory agreement, IPS, meeting minutes | Written fiduciary acknowledgment, investment manager agreement, IPS |
| Accurate promise | Informed, documented guidance | Delegated, documented management |
Two cautions. The written agreement and actual services decide the role, not marketing labels. And 3(16) is different: it covers plan administration, not investment advice or management. If no administrator is designated, the sponsor defaults into that role.
Confirm these definitions against current DOL guidance when you draft agreements or client-facing materials.
How the Fiduciary Model Changes Lead Generation
3(21) fiduciary lead generation
The ideal prospect is a sponsor or investment committee that wants expert research but has the expertise, time, and governance process to decide.
Build messaging around:
- Collaborative plan reviews and lineup analysis
- IPS support and committee education
- Documented recommendations
Never imply that hiring a 3(21) advisor removes the sponsor's investment responsibility. It doesn't.
3(38) fiduciary lead generation
Target sponsors that lack investment expertise, have thin committee bandwidth, or want to hand off day-to-day selection and monitoring.
A PLANSPONSOR survey found:
- Users cited reducing fiduciary liability (73.77%) and ERISA compliance (59.02%)
- Nonusers most often cited retaining control (61.29%) and already using a 3(21) (51.61%)
That sample spans broader DC plans, so treat it as directional.
Emphasize:
- A repeatable process and clear authority
- Ongoing monitoring, reporting, and accountability
Say plainly that delegation may shift investment-decision responsibility but doesn't remove every sponsor duty.
Keep the funnels separate
Build distinct landing pages, lead magnets, outreach sequences, and calls to action for each model. A prospect should recognize their preferred level of control within seconds.
How to Build a 3(21) or 3(38) Fiduciary Advisor Lead Generation Campaign
Define the audience and buying committee
Segment by firm type and likely decision-maker:
- Business owners and CFOs
- HR leaders and benefits managers
- Investment committees and nonprofit boards
- Professional service firms sponsoring 401(k) plans
Before assigning a lead to a campaign, learn the current fiduciary arrangement, committee structure, in-house expertise, workload, service gaps, and decision timeline. The U.S. had roughly 724,720 401(k)-type plans in the DOL's 2023 Form 5500 data, so targeting matters.
Create role-specific content and offers
Useful assets include:
- A 3(21) versus 3(38) comparison guide
- A fiduciary responsibility checklist
- An investment committee discussion guide
- A plan review worksheet
- A questions-to-ask-an-advisor resource
Tie each to a next step: a plan-fit assessment, lineup review, or fiduciary structure conversation. No call to action should hint at guaranteed results or complete liability protection.
Use coordinated outreach channels
Email, LinkedIn, phone, referral partners, webinars, and search content work best together, reaching sponsors at different stages of awareness. Tune the language: collaboration and guidance for 3(21); delegation, discretion, and process accountability for 3(38).
Before making any performance, fiduciary, testimonial, or liability claim, check SEC Marketing Rule requirements, FINRA rules where applicable, ERISA, and state rules with compliance counsel.
Consider outsourced appointment setting
An external partner can help when:
- Prospecting capacity is limited
- Outreach is inconsistent
- Verified decision-makers are hard to reach
- The advisory team should focus on discovery and closing
TopLead is one example. It is a B2B appointment-setting agency, not a fiduciary or advice provider. The company states that it has more than 15 years in B2B marketing and has arranged more than 25,000 appointments.
It is U.S.-based and uses multi-channel outreach (email, phone, LinkedIn), decision-maker verification, CRM integration, and transparent reporting. Pricing is pay-per-appointment with no long-term contract.
For 401(k) advisors, it says it books meetings with HR directors, CFOs, controllers, or owners at companies of 50 to 500 employees. These are company claims; evaluate any vendor on its own terms.
Qualify, Nurture, and Convert Fiduciary Advisor Leads
Qualify on control and authority
Ask questions that sort recommendation seekers from delegators:
- Do you want recommendations or a manager who makes the decisions?
- Who holds investment authority today?
- Who sits on the investment committee?
- How much expertise and time does the team have?
- What fiduciary or administrative concern started this search?
Nurture by path
Build separate tracks for prospects researching 3(21) guidance, 3(38) delegation, or broader plan support. Address the real objections up front:
- Control and decision rights
- Cost and fee structure
- Documentation requirements
- Provider oversight
- Liability scope
Nurturing starts before the first call, so have educational content ready when prospects begin researching.
Track funnel quality
Monitor:
- Decision-maker connection rate
- Qualified-lead rate
- Booked and held appointments
- Opportunity rate and sales-cycle length
- Close rate and acquisition cost
No authoritative retirement-plan benchmarks exist for most of these. Kitces Research found an average of $3,119 per acquired client across general financial advisors in 2020, but that is not a plan-sponsor figure. Set targets from your own history instead of borrowed numbers. TopLead campaigns typically run three to six months and cost $300 to $350 per qualified lead, a vendor-reported reference point you can weigh against your own data.
Common Lead Generation Mistakes to Avoid
- Vague "fiduciary advisor" messaging. If prospects can't tell who makes investment decisions and what the sponsor still owns, they won't book.
- Overreaching claims. "Eliminate all fiduciary liability" or "guaranteed better returns" invites legal and trust problems. The SEC charged nine advisers in a September 2024 sweep over unsubstantiated performance claims and testimonial failures. Have compliance or legal review your copy.
- Chasing list size. Optimize for fit and held appointments, not thousands of unverified contacts.
- One-size-fits-all testing. Test messaging, offers, audiences, and follow-up separately for 3(21) and 3(38).
Frequently Asked Questions
What is the difference between a 3(21) and a 3(38) advisor?
A 3(21) advisor recommends investments, and the plan sponsor keeps final authority. A 3(38) fiduciary has discretionary authority to make investment decisions within the engagement scope.
What is a 3(38) fiduciary?
A discretionary investment manager who can select, monitor, and replace plan investments. The sponsor still must prudently select and monitor that provider.
What is the role of a 3(21) advisor in an investment plan?
It covers investment research, lineup recommendations, monitoring support, and committee guidance. The sponsor remains responsible for informed final decisions.
What are the different types of 401(k) fiduciaries?
3(21) fiduciaries give investment advice, 3(38) fiduciaries manage investments with discretion, and 3(16) fiduciaries handle plan administration. Actual responsibilities depend on the engagement.
Which type of fiduciary should a plan sponsor choose?
It depends on desired control, internal expertise, governance capacity, and time. Sponsors who want to keep decisions lean toward 3(21); those who want to delegate lean toward 3(38).
Can a plan sponsor use both a 3(21) and a 3(38) fiduciary?
Yes, when responsibilities are clearly defined, documented, coordinated, and monitored. Read each provider's authority against the plan document and service agreement.
