Expert Partner in Microsoft Dynamics & Office 365.
Our primary goal at International Software Systems is to help companies utilize technology to solve problems. We implement and support Microsoft's award-winning software, including Dynamics 365, Dynamics GP, and Office 365. More specifically, we are experts in deploying and servicing Microsoft's ERP software, Dynamics GP and Dynamics 365 for Finance and Operations, Business edition.
We understand the intricacies of accounting and back-office management of companies in a variety of industries. We empower our clients by assisting and consulting in everyday processes, extending the product to meet unique client needs, and augmenting staff. We are a complete solution provider.
Headquarters:
Orange County
Since 1992, International Software Systems has sold, implemented, and supported technologies that serve small-to mid-market U.S. and international clients.
Our list of satisfied clients who come to us for distribution, service, EDI, job costing, and other services continues to grow as does our staff, a team of dedicated consultants with extensive training, experience, and certification on all of the products International Software Systems offers.
Founder and President, Laura Peters, has been an entrepreneur for over 40 years and is responsible for the creation of three successful businesses: two bookkeeping businesses she sold and International Software Systems.
Her skills include, but are not limited to:
- Accounting Expertise
- Business Administration (MBA)
- Certification for Dynamics GP, SQL Server, and MCP

Testimonials
“Our company was in the middle of the transition to Great Plains when the outside software service company we were using walked away from the job. We called International Software Systems; Laura made the transition seamless.”
Lee Ann M. Engel Controller, Design Tec, Inc.
“… it is nice to have someone who is able to communicate and teach in a calm, efficient manner….”
Suzanne J. Seibold, VP, Fidelity National Title
“… Best of all, Laura Peters made the installation process a breeze. She is readily accessible and checks on our progress frequently…”
Cheryl Jordan, Controller, Omega Cinema Props, Inc.
“… Great Plains, coupled with the ingenuity of International Software Systems, delivered a product that exceeded our expectation in both conversion and day-to-day functionality…”
Kevin Moradian, CFO, Fire Sprinkler Systems, Inc.
“… International Software Systems implemented a software upgrade that was so smooth that we did not experience any business interruption.”
Robert Ades, Controller, Fish Co.