Who we are / 50 Years


From our humble beginnings in 1969 to becoming a leader in the human resources and staffing industry, our mission from the beginning has always been to make business simple for our clients.


Bill Guss opens Labor Services, Inc, to provide a flexible workforce to Oahu shipyards. From his office lanai in Waikiki, he would raise a blue flag just after sunrise—a sign to surfers on dawn patrol that there was work available that day.


The East Coast corporate headquarters of Xerox, IBM and Motorola find it difficult to provide payroll and HR support to their Hawaii-based employees 5,000 miles away. We (Labor Services) fill a need and pioneer the outsourcing of HR administration in Hawaii.


We are one of the first companies in Hawaii to install a computer system for time/attendance, payroll and dispatch functions. The computers are the size of 2 refrigerators and can store 10 MB.


We open a Maui branch office, and it’s our first office located outside of Oahu.


Kerry Kopp joins the company.


Known as Employee Management Corporation, we establish Hawaii’s first professional employer organization (PEO) and it becomes a national leader in the PEO industry, providing HR administration and support services to both commercial and nonprofit clients.


Our staffing brand expands to Hilo and Kona.


Our staffing and HR companies expand from Hawaii to the mainland, opening up and buying businesses in California, Arizona and Utah.


We unify all of our businesses under one company, ALTRES, which is short for “ALTernative RESources for Business.” We now become the largest human resources company in Hawaii.


Barron Guss becomes President of ALTRES.


ALTRES develops proprietary Time and Attendance systems focusing on Radio Frequency I.D. technology.


We celebrate our 30th anniversary by breaking ground on the ALTRES Building on Kapiolani.


ALTRES Medical is started to provide nursing services to hospitals. And ProEmp Journal names us the #1 professional employer organization (PEO) in America.


We move into our new corporate headquarters at The ALTRES Building at 967 Kapiolani Blvd.


Our staffing division purchases Prostaffing, a Hawaii technical staffing firm and subsequently launches ALTRES Technical.


After 15 years of continuous expansion and growth outside of Hawaii, we decide to focus exclusively on serving the Hawaii business community once again.


We celebrate our 40th anniversary and we are named “Innovative Company of the Year” by Pacific Business News.

Our HR division rebrands and becomes simplicityHR by ALTRES.


We release HR Symphony®, our fully-integrated, single-login, human resources information system (HRIS) and web portal.


simplicityHR by ALTRES acquires KilaKila Employer Services, Maui’s leading PEO.


simplicityHR by ALTRES introduces the HR Symphony® mobile app.


ALTRES is named as a finalist for Pacific Business News Titans of Tech.


ALTRES is proud to celebrate 50 years of business in Hawaii!


HR Symphony®, simplicityHR by ALTRES’ easy-to-use, integrated HR information system, was recognized by HR Tech Outlook Magazine as a Top 10 Cloud Solutions Provider for 2019.


simplicityHR by ALTRES is selected as one of the nation’s Top 10 PEOs by >Manage HR Magazine.​