About Our Company. CSC Paymaster, located in Warwick, Rhode Island, is one of the largest independent payroll and Human Capital Management (HCM) processors in the region. For more than 60 years, we have delivered customized payroll and HR solutions to businesses of all sizes. We are a collaborative, growth-minded team offering opportunities for advancement and a comprehensive benefits package that includes Medical, Dental, Vision, a 401(k) with e...