MP
Cloud HR, payroll and HCM software (an isolved reseller) bundled with HR consulting, talent acquisition and support services for small and mid-sized US employers.
MP (formerly MassPay, rebranded 'MP: Wired for HR' in 2021) is a payroll and human capital management provider. It resells the isolved HCM platform and adds HR consulting, talent acquisition, benefits administration and hands-on customer support. It serves small and mid-sized businesses in all 50 states, and its site says it has 2,200+ client companies as of 2025–26. It was founded in 2004 and is privately held. OneDigital announced it was acquiring MP in April 2026. MP is a conventional HR-services company rather than an AI-native one. Revenue and headcount figures vary widely between directories, so none are given here.
Top 100 SaaS by revenue (GetLatka). A SaaS company retooling its product to be AI-native.
