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Some people dream of success. We make it happen.


Our KeySupport plan and Maintenance Plan ensure that your system will stay up-to-date and working smoothly. 


Your business management system is the foundation of your business and is essential to your success. As with any foundation, small problems can become large problems very quickly if left alone. Your bottom line can be affected by any number of unforeseen events. Employee turnover, hardware or environmental failure, policy changes and more can all cause disruption to your business. Keeping your software running smoothly ensures that your business can continue to grow and prosper. 

KeySupport provides you with the peace of mind that your Sage software is backed by some of the industry's most knowledgeable experts.



Taking on a new business technology project has the potential to disrupt your growing business.


At Keystone Software,  we follow a proven implementation process that makes the transition to your new Sage 100 (formerly MAS 90 & MAS 200) business & accounting software pretty easy, and it has delivered measurable results for over 17 years.



If your version of Sage 100 ERP (formerly MAS 90 & MAS 200) is at version 4.50 or older, now is the time to consider upgrading. Sage has retired v4.5 as of September 30, 2015. This means that you  no longer have access to important service packs, security hotfixes, or compliance, tax table and payroll updates.


So where do you begin?




"We were looking for a company that would be interested in our needs. We found it with Keystone Software Solutions."

 Karen Achenbach, Reading Precast, Inc. 

Providing SAGE 100 Business and Accounting Software and Services 

Sage 100
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