Employee Benefit Plan Auditors Ranked by Plans Audited

Why plans audited matters when choosing an employee benefit plan auditor

An employee benefit plan auditor should be able to show meaningful experience with retirement and welfare plan engagements, not just general assurance work. This page ranks firms by plans audited so plan sponsors, fiduciaries, and finance teams can quickly see which auditors appear to handle the most employee benefit plan work in the market. Higher audit volume does not replace independence, partner fit, or fee discipline, but it is a practical signal that a firm is familiar with Form 5500 reporting, ERISA expectations, and the operational realities of plan audits across multiple client situations.

If you want a broader starting point, begin with the main auditor directory. If your search is tied to a specific plan design, you can also compare 401(k) auditors, 403(b) auditors, defined benefit auditors, health and welfare plan auditors, and PEP 401(k) auditors.

How to use this page

The default ranking on this page sorts firms by plans audited in descending order. That makes it easier to identify firms with larger apparent employee benefit plan audit books before you narrow by state, credentials, or qualitative fit. Once you have a short list, review each provider profile for licensing, audit specialization, and any additional signals that matter to your committee or procurement process.

• Use audit volume as an initial screen, not the only decision factor.
• Check whether the firm has experience with your plan type, filing complexity, and participant size.
• Look for credential and quality signals that support technical depth.
• Compare local coverage and industry familiarity if your plan has specialized needs.

Some sponsors will also want to compare the advisory side of the market alongside audit vendors, especially when they are reevaluating governance, benchmarking, or fiduciary support at the same time. In that case, it can help to review the largest retirement plan advisors page or browse the largest 401(k) plans dataset to understand the size tiers and sponsor profiles that commonly drive more complex plan oversight needs.

What to evaluate beyond the ranking

The strongest employee benefit plan auditor for your organization is not always the one with the highest raw count. A sponsor with a complex 401(k), 403(b), or defined benefit environment may care more about plan-type overlap, internal review processes, partner access, and the firm's ability to coordinate with recordkeepers, custodians, and counsel on audit requests. A smaller sponsor may prioritize responsiveness, a clear request list, and predictable fees over sheer scale.

Use this category page as a high-intent starting point for discovery. The ranking helps surface firms with visible audit activity, while the linked plan-specific pages make it easier to continue into a more precise comparison path once you know whether your priority is 401(k), 403(b), defined benefit, health and welfare, or pooled employer plan coverage.