felix@accupaysystems.com

isolved HCM, LLC is a major national human capital management and payroll processor headquartered in Charlotte, North Carolina, offering an integrated cloud platform covering payroll, HR, time and attendance, benefits, onboarding, and talent management. Sources vary on the company’s exact founding date (1986, 1999, or 2016 depending on which corporate lineage/restructuring is counted). Read more...

CBI Business Services is an independent payroll, HR, timekeeping, and employee benefits bureau based in Fargo, North Dakota (started January 1, 1966 per BBB records), also serving Sioux Falls, South Dakota, under Owner/Manager Kevin Wilson. Read more...

Paycor, Inc. is a major national payroll and HCM processor headquartered in Cincinnati, Ohio. Paychex completed its $4.1 billion acquisition of Paycor on April 14, 2025; Paycor now operates as a business unit within Paychex, with both companies’ customers remaining on their respective platforms and former Paycor executives retaining leadership roles. Read more...

Patriot Software, LLC is a major national online accounting and payroll software provider for small businesses, headquartered in Canton, Ohio and founded August 27, 2002. Read more...

Professional Payroll Services, Inc. is an independent payroll bureau serving the Cincinnati/Tri-State area for over 30 years, offering payroll setup, tax compliance, payroll reporting, garnishment processing, time and attendance tracking, and HR support. Read more...

Horizon Payroll Solutions (Horizon Payroll Services, Inc.) is an independent payroll bureau founded January 1, 1981, headquartered in Miamisburg, Ohio and serving the Dayton, Columbus, Cincinnati, and Cleveland metro areas. Read more...

National Payment Corporation (NatPay) is an independent payroll distribution and ACH processing services provider founded in 1991 in Dublin, Ohio, the leading company offering third-party ACH processing of Direct Deposit for employee payroll, processing more than $158 billion annually for 278,000+ ACH clients nationwide. NatPay introduced the first electronic pay stub (EZStub) in 2000 and the Doculivery web-hosted SaaS platform Read more...

1-2-3 Payroll & HR Services, Inc. is an independent payroll and HR service bureau incorporated August 6, 2003, serving the Long Island, New York area from Holtsville. Read more...