Best PEO Companies in New Hampshire
Compare Professional Employer Organizations serving New Hampshire businesses. Editorial ratings are independent — featured placements are paid visibility, not endorsements.
PEO Companies Serving New Hampshire
Justworks
New York, NY · Est. 2012
Insperity
Kingwood, TX · Est. 1986
TriNet
Dublin, CA · Est. 1988
ADP TotalSource
IRS CPEO ✓ESAC ✓NationwideHQ: Roseland, NJ · Est. 1996
ADP TotalSource is the Professional Employer Organization division of ADP (NASDAQ: ADP), one of the world's largest payroll and HR companies with over 75 years of history and more than 1.1 million clients across 140+ cou…
Rippling
NationwideHQ: San Francisco, CA · Est. 2016
Rippling is a San Francisco-based workforce management platform and PEO founded in 2016 by Parker Conrad and Prasanna Sankar.
Oasis, a Paychex Company
IRS CPEO ✓NationwideHQ: Sarasota, FL · Est. 1996
Oasis, a Paychex Company, is a full-service Professional Employer Organization formed through Paychex's 2018 acquisition of Oasis Outsourcing — one of the largest privately held PEOs in the country at the time, serving o…
Engage PEO
IRS CPEO ✓ESAC ✓NationwideHQ: Hollywood, FL · Est. 2011
Engage PEO is a Hollywood, Florida-based IRS CPEO certified Professional Employer Organization founded in 2011.
CoAdvantage
IRS CPEO ✓NationwideHQ: Bradenton, FL · Est. 1997
CoAdvantage is a Bradenton, Florida-based Professional Employer Organization founded in 1997.
Infiniti HR
NationwideHQ: Rockville, MD · Est. 2008
Infiniti HR is a Burtonsville, Maryland-based IRS CPEO certified Professional Employer Organization founded in 2004.
FrankCrum
NationwideHQ: Clearwater, FL · Est. 1981
A family-owned PEO based in Florida serving businesses nationwide with 2-500 employees. FrankCrum is one of the few PEOs with its own insurance company, enabling highly competitive workers comp rates.
AdvantEdge HR
RegionalHQ: Albany, NY · Est. 2002
A New York state-based PEO with particular expertise in navigating the state's complex employment regulations. Strong nonprofit sector experience.
PrestigePEO
IRS CPEO ✓ESAC ✓NationwideHQ: Melville, NY · Est. 1998
PrestigePEO is a national Professional Employer Organization headquartered in Melville, New York, serving small and mid-sized businesses across all 50 states since 1998.
New England HR
IRS CPEO ✓RegionalHQ: Boston, MA · Est. 1998
A Boston-based PEO with deep expertise in Massachusetts and New England employment law. Known for strong healthcare benefit networks and technology sector support.
Aspen HR
IRS CPEO ✓RegionalHQ: Boston, MA · Est. 2015
Aspen HR is a Walnut Creek, California-based IRS CPEO certified Professional Employer Organization founded in 2017.
Genesis HR Solutions, an Engage PEO Company
IRS CPEO ✓RegionalHQ: Burlington, MA · Est. 1991
Genesis HR Solutions is a Burlington, Massachusetts-based IRS CPEO certified and ESAC accredited Professional Employer Organization founded in 1991.
IntelliPro
IRS CPEO ✓NationwideHQ: San Jose, CA · Est. 2009
IntelliPro is an IRS-certified PEO headquartered in San Jose, California, specializing in HR outsourcing, payroll administration, and employee benefits management for technology companies and professional services firms…
Paychex PEO
IRS CPEO ✓ESAC ✓NationwideHQ: Rochester, NY · Est. 1971
Paychex PEO is the co-employment division of Paychex (NASDAQ: PAYX), one of the largest HR and payroll companies in the United States with over 50 years of experience serving American businesses.
BBSI
ESAC ✓NationwideHQ: Vancouver, WA · Est. 1965
Barrett Business Services, Inc. (BBSI) is a publicly traded (NASDAQ: BBSI) Professional Employer Organization headquartered in Vancouver, Washington.
Adams Keegan
IRS CPEO ✓ESAC ✓NationwideHQ: Memphis, TN · Est. 1987
Adams Keegan is a Memphis, Tennessee-based PEO offering both co-employment (PEO) and administrative services organization (ASO) models.
Deel PEO
NationwideHQ: San Francisco, CA · Est. 2019
Deel PEO is the domestic U.S. co-employment offering from Deel, a San Francisco-based global HR and payroll platform founded in 2019 and valued at $16.8 billion following a $450 million Series G in May 2025.
AlphaStaff
ESAC ✓NationwideHQ: Sunrise, FL · Est. 1997
AlphaStaff is a Sunrise, Florida-based Professional Employer Organization founded in 1997 and ESAC accredited.
Vensure Employer Services
NationwideHQ: Chandler, AZ · Est. 2004
Vensure Employer Services is one of the largest privately held PEOs in the United States, headquartered in Chandler, Arizona, and founded in 2004.
America's Back Office
IRS CPEO ✓NationwideHQ: Chandler, AZ · Est. 2000
America's Back Office is an IRS CPEO certified and ESAC accredited PEO headquartered in Chandler, Arizona, providing comprehensive HR outsourcing services to small and mid-sized businesses across the United States.
Avitus Group
NationwideHQ: Billings, MT · Est. 1994
Avitus Group is a Billings, Montana-based PEO and HR outsourcing company founded in 1994, providing payroll processing, employee benefits, workers' compensation, and HR services to businesses nationwide.
Modern Business Associates
NationwideHQ: Tampa, FL · Est. 1990
Modern Business Associates (MBA) is a Tampa, Florida-based PEO founded in 1990, providing co-employment services including payroll processing, employee benefits, HR administration, workers' compensation, and compliance s…
Proservice National
NationwideHQ: Honolulu, HI · Est. 2010
Proservice National is the mainland U.S. PEO extension of ProService Hawaii, providing co-employment services including payroll, benefits, HR administration, and compliance support to businesses across the continental Un…
Regis HR Group
ESAC ✓NationwideHQ: Tampa, FL · Est. 2002
Regis HR Group is a Tampa, Florida-based national PEO providing co-employment services including payroll processing, employee benefits, HR administration, workers' compensation, and compliance support to businesses acros…
Stratus HR
NationwideHQ: South Jordan, UT · Est. 2003
Stratus HR is a South Jordan, Utah-based PEO (operating as ISI HR) providing comprehensive co-employment services to small and mid-sized businesses nationwide.
INVO PEO
NationwideHQ: Tampa, FL · Est. 2010
INVO PEO is a Tampa, Florida-based Professional Employer Organization providing co-employment services including payroll processing, employee benefits, HR administration, workers' compensation, and compliance support to…
SinglePoint Outsourcing
NationwideHQ: Scottsdale, AZ · Est. 2007
SinglePoint Outsourcing is a Scottsdale, Arizona-based PEO providing national co-employment services including payroll, employee benefits, HR administration, and compliance support to small and mid-sized businesses acros…
NetPEO
NationwideHQ: Atlanta, GA · Est. 2009
NetPEO is an Atlanta, Georgia-based PEO broker and provider offering co-employment services and PEO matching to businesses nationwide.
PrimePay
NationwideHQ: West Chester, PA · Est. 1986
PrimePay is a West Chester, Pennsylvania-based payroll and PEO services company founded in 1986, providing co-employment services and payroll administration to small and mid-sized businesses nationwide.
Prism HR
NationwideHQ: Hopkinton, MA · Est. 1996
PrismHR is a Hopkinton, Massachusetts-based HR technology platform and PEO services provider founded in 1996.
CalmHR
ESAC ✓RegionalHQ: Rockville, MD · Est. 2020
CalmHR, Inc. is a Rockville, Maryland-based Professional Employer Organization founded in 2020 by Joe Appelbaum, who previously founded and led Potomac Insurance, an employee benefits brokerage he built starting in 1990…
Choosing a PEO in New Hampshire
New Hampshire has no state minimum wage law, so the federal minimum wage of $7.25 per hour applies. New Hampshire is one of a handful of states with genuinely minimal state-level wage regulation: no state income tax, no state sales tax, and no mandated paid sick leave or vacation. Overtime is paid at 1.5 times the regular rate for hours worked over 40 in a week, following the federal standard. New Hampshire is an at-will employment state.
New Hampshire's compliance obligations layer on gradually as a business grows, which catches some employers off guard. Six or more employees triggers lactation break obligations, 20 employees triggers a state parental leave obligation for school-related activities, and 50 employees brings employers under FMLA and military spouse leave requirements. Starting July 1, 2026, the New Hampshire Labor Commissioner gained authority to issue a one-time civil fine of up to $2,500 per violation of state wage, break, or leave laws — a meaningful new enforcement tool employers should be aware of.
Workers' compensation insurance is required for New Hampshire employers with one or more employees, including part-time and family employees, with limited exceptions for independent contractors, small LLCs, and a handful of specific occupations. Non-compliance carries a $2,500 penalty plus $100 per employee per day. New Hampshire requires PEOs to be licensed by the Department of Labor, and PEOs must separately obtain a Certificate of Authority from the Secretary of State to do business in the state.
Final pay in New Hampshire depends on the type of separation: discharged employees must be paid within 72 hours, while employees who are laid off are due their wages on the next regularly scheduled payday. New Hampshire's economy centers on manufacturing, technology, healthcare, and tourism, with many businesses drawn by the state's tax structure. A PEO with New Hampshire expertise can help businesses track the state's step-up compliance thresholds, manage workers' comp, and verify PEO licensing status. Use the form on this page to connect with PEOs serving New Hampshire businesses.
Already working with a PEO and considering a switch? PEO Alternatives has independent comparisons of the top providers to help you evaluate your options.
Frequently Asked Questions
What is the minimum wage in New Hampshire in 2026?
New Hampshire has no state minimum wage law, so the federal minimum wage of $7.25 per hour applies. No New Hampshire increase is currently scheduled, and no local jurisdiction in the state has enacted a higher minimum wage.
Does New Hampshire require PEOs to be licensed?
Yes. New Hampshire requires PEOs to be licensed by the Department of Labor, and PEOs must also obtain a Certificate of Authority from the Secretary of State to legally conduct business in the state. New Hampshire treats employee leasing and co-employment arrangements under the same regulatory framework.
Is workers' compensation insurance required in New Hampshire?
Yes. New Hampshire requires employers with one or more employees, including part-time and family employees, to carry workers' compensation insurance, with limited exceptions such as independent contractors and small LLCs. Non-compliance carries a $2,500 penalty plus $100 per employee per day.
When must New Hampshire employers pay a departing employee's final wages?
New Hampshire requires discharged employees to be paid within 72 hours of termination. Employees who are laid off must be paid by the next regularly scheduled payday. A PEO can help ensure the correct deadline is met based on the type of separation.