ALTRES

ESAC AccreditedRegional PEOHI-Headquartered
Honolulu, HI·Founded 1969·Serving 1-500 employees
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1
States Served
6
Services
5
Industries
1-500
Serving

About ALTRES

ALTRES, Inc. is a Honolulu, Hawaii-based Professional Employer Organization founded in 1969 by Bill Guss, originally established as Labor Services Inc. to provide flexible workforce solutions to Oahu warehouses, trucking companies, and naval shipyards. In the 1990s, ALTRES consolidated its business lines under one brand and created the first Professional Employer Organization in Hawaii, Employee Management Corporation, which became the foundation for its modern PEO division, simplicityHR by ALTRES. Today ALTRES is one of the largest home-grown HR and staffing companies in Hawaii, offering payroll processing, employee benefits administration, workers compensation management, and HR compliance support through tiered simplicityHR service packages, alongside a proprietary human resources information system called HR Symphony. The company also operates specialty staffing divisions including ALTRES Medical, ALTRES Tech, and ALTRES Home Care. ALTRES is ESAC accredited and maintains a mainland-facing office in Scottsdale, Arizona for businesses with Hawaii-based employees. Headquartered at the ALTRES Building in Honolulu, the company has served the Hawaii business community for more than five decades, growing from a single dockside labor pool into a full-service PEO and staffing group.

Certifications

ESAC Accredited PEO
Certification active · Verified by PEO Authority
Certified ✓

ESAC accreditation is awarded by the Employer Services Assurance Corporation, the PEO industry's gold-standard independent accreditor. It requires a PEO to meet more than 40 financial, ethical, and operational standards on an ongoing basis. ALTRES holds ESAC accreditation — a distinction held by roughly 10% of PEOs in the United States.

Financial Assurance
ESAC backs accredited PEOs like ALTRES with over $15 million in surety bond coverage, protecting clients, employees, and taxing authorities.
Independent Audits
Accredited PEOs submit quarterly independent verifications of tax, benefit, and payroll obligations to maintain their accreditation.
Ethical & Operational Standards
ALTRES is continuously monitored against more than 40 financial, ethical, and operational standards set by ESAC's independent board.

Why businesses choose ALTRES

Founded in 1969 — one of the longest-operating PEO and staffing companies in Hawaii
Pioneered the first Professional Employer Organization in the state of Hawaii
ESAC accredited with a full tiered simplicityHR service structure for growing businesses
Proprietary HR Symphony platform for payroll, benefits, and HR administration
Specialty staffing divisions for medical, IT and engineering, and home care roles
Deep, multi-generational relationships across the Oahu, Maui, Kauai, and Big Island business communities
Mainland-facing office in Scottsdale, Arizona for companies employing Hawaii-based staff

Company Details

Headquarters
Honolulu, HI
Founded
1969
Serving
1-500 employees
CPEO Certified
No
ESAC Accredited
Yes - ESAC Verified
Coverage
1 states
Company Type
Regional PEO

ALTRES in Your State

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Pros & Cons

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Pros
Five decades in Hawaii
Founded in 1969, ALTRES has one of the longest continuous track records of any PEO operating in the state.
ESAC accredited
Meets the bonding, insurance, and compliance standards required for ESAC accreditation.
Bundled staffing options
Medical, IT, engineering, and home care staffing divisions sit alongside the core PEO offering.
Proprietary technology
HR Symphony platform handles payroll, benefits, and HR administration in one system.
Statewide island coverage
Dedicated offices on Oahu, Maui, Kauai, and the Big Island.
Cons
No IRS CPEO certification
Does not currently hold the highest federal certification tier some businesses require.
Primarily Hawaii-focused
Mainland PEO service is limited to a single Scottsdale, Arizona office rather than a broad multi-state footprint.
No published pricing
Rates require a direct consultation rather than an online quote.
PEO Authority Editorial Note

ALTRES is the default choice for many long-established Hawaii businesses because of its five-decade local track record and the breadth of its staffing and PEO offerings under one roof. The tradeoff is that ALTRES does not carry IRS CPEO certification, so businesses that need the added federal tax liability protections that certification provides should weigh this alongside its local reputation. Best for: Hawaii-based small and mid-sized businesses that want an established local partner with staffing options beyond standard PEO services.

Frequently Asked Questions

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