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603-624-7788

CONTACT US

Address:
20 Market Street Manchester, NH 03101

Mailing Address:
PO Box 6655
Manchester, NH 03108-6655

Phone:
603-624-7788

Email:
hello@trivantus.com

Fax:
603-647-9911

SERVICES

Payroll
Payroll Tax Filing
Time & Attendance
Human Resources (HR)
Employee Benefits Management
ACA Reporting
Employee Onboarding
Workers’ Compensation Services
Employee Portal
Additional Services

Resources

Freedom Insights Blog
Business Resources
Payroll Forms
Client Login
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CONNECT WITH TRIVANTUS

ABOUT US

Founded in 2003, Trivantus is a leader in payroll services, employee benefits and human resource administration. Our philosophy is based on employing relationships through excellent communication. We believe in true customer service and stand behind this commitment. Owned by the Gatsas family, Trivantus is no stranger to success. Michael Gatsas co-founded Staffing Network, a Professional Employer Organization which grew to be one of the largest employers in New England.