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What is HRO?

HRO solutions mindshare

As of September 2025, in the HRO category, the mindshare of TriNet Human Resource Outsourcing is 13.3%, up from 10.2% compared to the previous year. The mindshare of ADP Human Resource Outsourcing is 15.0%, down from 21.2% compared to the previous year. The mindshare of AON Human Resource Outsourcing is 14.8%, up from 13.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
HRO Market Share Distribution
ProductMarket Share (%)
ADP Human Resource Outsourcing15.0%
AON Human Resource Outsourcing14.8%
TriNet Human Resource Outsourcing13.3%
Other56.9%
HRO

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