Trivantus | Client Login
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Client Login

Client Login

CONTACT US


Address: 20 Market Street
Manchester, NH 03101
Mailing Address: PO Box 6655
Manchester, NH 03108-6655
Fax: 603-647-9911

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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.