Business Directory Return to Listing ShareTweetsimplicityHR by ALTRESwww.simplicityHR.com967 Kapiolani BlvdHonolulu, HI 96814808-591-4900EmailAboutsimplicityHR by ALTRES serves as the human resources ôback officeö for more than 850 Hawaii businesses. The company is the stateÆs most experienced provider of outsourced payroll and HR services.Hours of OperationM-F, 8-5Business Consultants/Services Kauai Chamber Directory | Calendar of Events | Member Account | Community Calendar of Events Become a Member