Top 10 Best 401K Advisory Services of 2026

Empower Retirement Advisory Services supports ongoing stewardship activities that typically include monitoring investment lineup behavior, supporting committee education, and preparing sponsor-facing recommendations for periodic review. Guidance is structured around actionable governance steps that help trustees document decisions and maintain a steady decision cadence across plan meetings. Integration depth is strongest when the sponsor uses Empower’s ecosystem for recordkeeping-adjacent workflows because recurring data access and operational handoffs align to the advisory calendar.

A tradeoff is that sponsors with highly customized governance processes or unusual service stacks may need additional alignment work to fit Empower’s advisory operating rhythm. Empower works best for organizations that already run committee meetings on a regular schedule and need an advisory partner to translate investment and operational tasks into repeatable deliverables. It is less suitable for sponsors seeking highly custom, internally engineered workflows without dependence on Empower’s standard advisory modules.

Fisher Investments 401(k) Advisory aligns best with plan sponsors that already have a recordkeeper in place and need an outside advisor to structure decisions and document rationale. The engagement commonly supports investment menu construction work and helps translate market data into committee discussions that map to ERISA expectations. It also supports fiduciary governance activities by organizing meeting outputs, updates, and investment-related evaluations into sponsor-usable deliverables.

A key tradeoff is that the advisory model still depends on the plan’s operational setup with the chosen recordkeeper for enrollment, participant data flows, and Form coordination. Fisher Investments 401(k) Advisory fits well when an internal committee wants a consistent cadence for review and when leadership needs advisor-led continuity for qualified default and investment lineup decisions.

DiNuzzo Retirement Plan Advisors provides plan guidance centered on fiduciary governance, including documentation support that helps translate committee decisions into defensible processes. The engagement model fits teams that need ongoing oversight rather than one-time plan design refreshes, especially when investment changes and participant disclosures must align. It also emphasizes investment menu construction work that ties investment monitoring to committee reporting cycles.

A tradeoff is that the service is advisory-first, so operational heavy lifting like payroll file ingestion or participant service execution still depends on the client’s recordkeeper and third-party administrator. A strong usage situation is when a committee is changing investment options or reviewing service provider compensation and needs a structured decision trail for governance meetings.

Schwab Retirement Plan Services supports 401(k) plan sponsors with plan design assistance, ongoing fiduciary governance support, and ongoing administration coordination tied to Schwab’s recordkeeping and advisory workflows. The service’s core value is its brokerage and retirement ecosystem, which can align investment policy work, menu construction support, and participant-directed education with Schwab’s managed investment options.

Schwab also supports plan document review workflows and retirement plan compliance operations that require coordination across trustees, recordkeeping, and adviser processes. For sponsors that want tighter operational coupling between investment oversight and day-to-day retirement plan handling, Schwab Retirement Plan Services provides a focused advisory-and-administration workflow rather than a detached advisory-only model.

Voya Financial Advisors delivers 401(k) advisory services that focus on plan design, investment oversight, and ongoing fiduciary governance support for sponsor teams. Its guidance targets committee workflows such as investment policy statement maintenance, investment menu construction, and fee and revenue-sharing reviews across the managed and retail investment lineup.

Advisory work also coordinates plan administration dependencies like Form 5500 data and nondiscrimination testing inputs through structured support for the sponsor and their recordkeeper. The engagement style centers on document-ready deliverables and review cadences meant to support ERISA compliance and participant-directed plan governance.

Aon Retirement Solutions supports 401(k) plan sponsors through advisory services built around fiduciary governance, investment oversight, and ERISA-adjacent plan administration coordination. It is distinctive for its attention to formal committee workflows, ongoing investment monitoring, and decision-ready documentation that can feed trustee and adviser meetings.

The offering also covers investment menu governance support, including evaluation processes and portfolio-level considerations for participant-directed plans. For sponsors comparing providers like Mercer and WTW, Aon tends to align with organizations that want structured guidance tied to meeting cadence and compliance artifacts.

Mercer Retirement Consulting pairs fiduciary governance guidance with defined workflows for 401(k) plan design, menu strategy, and ongoing oversight. The firm is distinct for its focus on ERISA-compliant committee support, investment policy alignment, and documentation that maps advisory recommendations to plan governance.

Mercer also supports retirement readiness through participant education and retirement income strategy that connects plan mechanics to outcomes. For operational teams, the value is in coordinated advisory deliverables that reduce handoffs between plan sponsor, recordkeeper, and investment-related decision points.

Mesirow Retirement Plan Consulting is a retirement plan advisory firm that supports plan design decisions and fiduciary governance work for 401(k) plans, with a consulting-first delivery model rather than a self-serve software experience. Its scope typically spans investment policy statement development and ongoing committee support, plus retirement plan administration oversight work such as plan document review and Form 5500 coordination.

The firm is positioned for teams that need structured guidance across ERISA compliance responsibilities and investment menu governance. Advisory engagement depth is strongest when there is an established fiduciary committee workflow that can adopt documented processes for monitoring, documentation, and participant-facing decisions.

M3 Financial acts as a 401k advisory firm that supports plan sponsors with ongoing guidance across plan design decisions, fiduciary governance workflows, and investment oversight tasks. The service focus centers on helping committees stay organized for ERISA obligations, including documentation used during major process cycles like investment reviews and reporting coordination.

Engagement typically emphasizes investment policy alignment, menu construction guidance, and decision trails that support fiduciary evaluation activities. For sponsors working with bundled or unbundled recordkeeping arrangements, the advisory role targets governance continuity rather than recordkeeping replacement.

Greenspring Advisors serves employers that need hands-on 401(k) plan guidance tied to fiduciary governance workflows. Its advisory scope centers on plan oversight tasks such as investment menu construction and fee benchmarking reviews, paired with ongoing monitoring support.

The firm also supports plan administration governance deliverables like Form 5500 coordination and plan document review so sponsor teams can stay aligned with ERISA processes. Greenspring Advisors fits organizations that want documented decision cycles for investment and plan changes rather than ad hoc consulting.