• Payroll Services
20 Market Street
Manchester, NH 03101
(603) 624-7788
(603) 647-9911 (fax)
Hours:
Monday ~ Friday (8:30am to 5:00pm ET)

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 read more
  • About

    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.

  • Highlights

    • Payroll
    • Tax Filing
    • Human Resources
    • Benefits
  • Media

  • Whom to Contact

    • Mr. Dan Casey
      Vice President of Sales
      20 Market Street
      Manchester, NH 03101
      Phone: (603) 624-7788 x120
      Fax: (603) 647-9911
    • Ms. Diane Denoncourt
      Health Broker
      20 Market Street
      Manchester, NH 03101
      Phone: (603) 624-7788 x123
      Fax: (603) 647-9911
    • Mr. Matthew Gatsas
      Vice President
      20 Market Street
      Manchester, NH 03101
      Phone: (603) 624-7788 x300
      Fax: (603) 647-9911
    • Mr. Michael J Gatsas
      Founder/CEO
      20 Market Street
      Manchester, NH 03101
      Phone: (603) 624-7788 x100
      Fax: (603) 647-9911
    • Mr. David Langlois, CPP
      Director of Operations
      20 Market Street
      Manchester, NH 03101
      Phone: (603) 624-7788 x170
      Fax: (603) 647-9911
    • Mr. Anthony Poole
      Director of Sales
      20 Market Street
      Manchester, NH 03101
      Phone: (603) 624-7788 x122
      Fax: (603) 647-9911
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