Avitus Group | 4,901 followers on LinkedIn. A Vensure Employer Services Company | Avitus Group is a worldwide company that simplifies, strengthens and grows businesses by providing administrative support (Payroll, accounting, taxes, HR and much more.) When a business uses Avitus Group, all of the necessary yet burdensome functions of the business become Avitus Group's responsibility, so the business can focus on what it does best. Avitus Group serves clients nationwide through regional office locations from coast to coast.