CoStaff Services

CoStaff Services is a professional employer organisation (PEO) and HR consultancy near Detroit, Michigan, that has served clients since 2000. It takes over the HR infrastructure of small and midsize businesses so owners can concentrate on running the company.

What CoStaff Services offers

• Payroll and tax administration — running payroll and handling the related tax filings.
• Employee benefits — acting as benefits agent and managing benefits administration, flexible spending accounts and 401k plans.
• Workers' compensation and safety — usage-based cover with safety and risk support.
• Unemployment administration — handling unemployment claims for employers.
• HR services — human resources support delivered by staff with advanced degrees.
• HR software — a platform covering hiring, onboarding, benefits, time and labour, and payroll, including its OnTime tools.

Who it works with

Its clients are small and midsize businesses, mainly in Michigan. Services can be bought as a package, one at a time, or as a mix of both.

Key facts

• Based in: Detroit, Michigan
• Serving clients since: 2000
• Billing: itemised invoices with each cost shown separately