Integrated Software Solution Inc. was formed in 1988 by Mark Jahansouz owner and operator.

Mark Jahansouz graduated from North Texas State University in 1980 with a Management Information System (MIS) degree. In the 8 years following graduation he acquired extensive background in various computer system designs and custom programming.

In 1988 Phil Ross CTO joined ISSI bringing a wealth of programming skills and web knowledge.

In the following year ISSI was commissioned by one of their large clients to develop an integrated Accounting, Payroll, and Human Resources program to be designed specifically for the PEO industry.

This level of cooperation resulted in the development and extensive testing of what is known today as StaffPay Software. Throughout the years with constant changes in Federal and State level changes, ISSI has remained at the forefront of computer technology for the PEO industry.

At present ISSI employs 5 full and part time programmers and operating systems specialists for various projects in addition to a secure data center in Oklahoma City.