AI Rankings · Professional Services

ChatGPT's shortlist: HR outsourcing and PEO providers, market by market

HR outsourcing and PEO providers take on payroll, benefits, compliance and HR administration for employers, often as a co-employer that gives small companies access to large-group benefits.

4markets live
96ChatGPT answers read
17 Sep 2026latest snapshot

Across markets

Named in the most markets

  1. Insperity top 20 in 4 of 4 · #1 in 1
  2. TriNet top 20 in 4 of 4 · #1 in 1
  3. ADP TotalSource top 20 in 4 of 4
  4. Justworks top 20 in 4 of 4
  5. Paychex PEO top 20 in 4 of 4
  6. Paychex top 20 in 4 of 4
  7. CLEAR Employer Services top 20 in 2 of 4 · #1 in 1
  8. Group Management Services top 20 in 2 of 4
  9. Rippling PEO top 20 in 2 of 4
  10. ExtensisHR top 20 in 1 of 4 · #1 in 1

By state

Snapshot 17 Sep 2026 · 24 answers · 70 named

California

  1. TriNet88%
  2. Insperity88%
  3. Justworks88%

No Leader yet

See the Answer Map →

Snapshot 17 Sep 2026 · 24 answers · 46 named

New Jersey

  1. ExtensisHR100%
  2. Cornerstone PEO88%
  3. AdvantEdge HR83%

No Leader yet

See the Answer Map →

Snapshot 17 Sep 2026 · 24 answers · 61 named

Pennsylvania

  1. CLEAR Employer Services96%
  2. Kismet PEO96%
  3. Insperity83%

Leader: CLEAR Employer Services

See the Answer Map →

Snapshot 17 Sep 2026 · 24 answers · 48 named

Texas

  1. Insperity88%
  2. ADP TotalSource88%
  3. TriNet88%

Leader: G&A Partners

See the Answer Map →

Coming next

United States · Ohio · Illinois · Michigan · Indiana · Maryland · Virginia · Washington, DC · New York · Florida · Massachusetts · Minnesota · Wisconsin · Connecticut · Rhode Island