PEO
Aon Brings Vanguard Into Its Pooled Employer Plan as Assets Hit $7.7 Billion
By Anthony Beck, . Insurance Wire.
Aon has selected Vanguard for their Pooled Employer Plan, the firm announced on October 6. Aon also said it intends to broaden the range of Vanguard investment options available inside the plan. The announcement came directly from Aon and has not yet been independently reported by trade outlets.
The Aon PEP launched in 2021 as one of the first pooled employer plans to reach the market after the SECURE Act opened that structure to unrelated employers. A pooled employer plan lets multiple companies join a single 401(k)-style arrangement under a shared fiduciary, the pooled plan provider, rather than each sponsoring its own plan. Aon acts as that provider here, which means it carries the primary fiduciary responsibility for investment selection, governance and administration. The shift to Vanguard affects the recordkeeping layer, where participant accounts are tracked and transactions processed, and the trustee function, which holds plan assets.
According to Aon, the plan held roughly $7.7 billion in assets as of September 2, 2026, based on internal data. Aon said the Vanguard selection followed a review that evaluated participant outcomes, service quality, operational execution, investment capabilities and long-term plan value.
Jennifer Brasher, Aon's North America Wealth Solutions Leader, said employers are looking for solutions that reduce complexity and administrative burden while improving participant outcomes. Rick Jones, Senior Partner and leader of the Aon PEP, described the enhancements as "another important step in delivering a retirement solution built for long-term employer and participant success," according to the announcement. Lauren Valente, Managing Director of Vanguard Workplace Solutions, said Vanguard was pleased to bring its experience to the plan as recordkeeper.
For employers already inside the Aon PEP, the practical question is what the recordkeeper transition means for their participants: account access, contribution processing, loan administration and the investment menu they see on screen. Aon has not published a transition timeline or detailed the steps participating employers will need to take. Those details matter, because recordkeeper changes in large plans typically require participant communications, blackout periods during which transactions are suspended, and sometimes a mapping of existing fund balances into new options.
The broader context is that PEP adoption is still in an early growth phase. Aon cited Cerulli Edge's second-quarter 2026 report on the state of PEPs as evidence that uptake is increasing, though it did not quote figures from that report. The structure appeals most to mid-sized employers that want a competitive retirement benefit without the cost and liability of running a standalone plan. The Aon PEP's scale, more than $7.7 billion across more than 160 employers, puts it among the larger arrangements in the market, and a provider of that size conducting a formal recordkeeper review and making a change is a signal that governance expectations inside PEPs are tightening.
What the announcement does not establish is whether the transition involves any cost change for participating employers, what the previous recordkeeper arrangement was, or whether any employers have left or joined the plan in connection with this decision. Employers evaluating their own PEP arrangements should watch how Aon handles the transition mechanics, since the way a pooled plan provider manages a major operational change is itself a test of the governance model it is selling.
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