What's the best payroll software for a 100-person company in the US?

Asked 5 times in ChatGPT, logged out, fresh chat each time.

What ChatGPT named

Brands ChatGPT named, out of 5 asks
BrandNamedShare of asks
Gusto5/5
Rippling5/5
ADP5/5
Paychex5/5
Intuit QuickBooks Payroll5/5

Not named in this run

  • Paylocity
  • Paycom
  • Paycor
  • Justworks
  • OnPay

What this means

ChatGPT gave the same five names in all five asks, and Gusto was the top pick every time. If your brand is missing from that list, every buyer who asks hears about five other companies.

Where the named brands show up

  • Gusto was in all 7 independent payroll round-ups we checked and came first in 3 of them. ADP was also in all 7, but never first.

    Sources: TechRadar, Business News Daily, TechRepublic
  • Round-ups don't explain the whole answer. OnPay was in 5 of the 7 lists and Paychex in 2, yet ChatGPT named Paychex every time and OnPay never.

    Sources: Business News Daily, business.com
  • One third-party tracker of ChatGPT and Google AI Mode answers to a similar question ('what is the best payroll service') found that four of the five most-cited sources were the brands' own websites: gusto.com, rippling.com, adp.com and paychex.com.

    Sources: Parse
  • Gusto, Rippling, ADP and Paychex each publish head-to-head comparison pages against their rivals. Paylocity and Paycor have some too, against ADP. We didn't find one from Paycom.

    Sources: Gusto vs ADP, Rippling vs Gusto, Paychex vs ADP, Paylocity vs ADP

Checked on .

Not named? Here's what was missing

Paycom, Paylocity and Paycor were in 0, 1 and 2 of the 7 round-ups we checked, so they rarely show up in the lists that answers like this draw on. Justworks and OnPay do get listed and do have comparison pages, but both pitch themselves at small businesses, and Justworks sells itself as a PEO. That may not read as a fit for a 100-person company, though we can't confirm it.

See how we get brands named

Questions

Which payroll software for a 100-person company in the US does ChatGPT recommend?

In our 12 Oct 2026 run, ChatGPT named Gusto, Rippling, ADP, Paychex and Intuit QuickBooks Payroll in all 5 of 5 asks.

Which well-known brands did ChatGPT leave out?

Paylocity, Paycom, Paycor, Justworks and OnPay did not come up in any of the 5 asks.

How was this tested?

Asked 5 times in ChatGPT, logged out, fresh chat each time. 12 Oct 2026.

Spotted something wrong? Email shlok@domyworkstudios.com

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