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Meet Our Staff

Keystone Software Solutions, Inc. is a leading provider of integrated accounting, business management, payroll, CRM and fixed asset solutions for small to mid-sized companies in Pennsylvania and surrounding states. 

We work with Sage Software, Inc. business and accounting software. Sage products provide critical business insights for bottom-line decision making through a full range of easy-to-use, scalable and customizable applications, including: Sage100 Standard, Advanded and Premium, (Formerly Sage MAS 90 & MAS 200) Sage CRM, Sage Fixed Assests, Sage Intelligence, Sage Inventory Advisor, Crystal Reports and Sage BusinessWorks.
Bill Delgado
Founder and President
Sam Wandzilak
Founder and VP

Bill Delgado, president of Keystone Software Solutions, Inc., co-founded the firm in 1998. He presently leads the management team towards the firm's vision of exceeding clients expectations and providing tools to better direct their businesses. His extensive experience in analyzing business processes has made him an expert in translating requirements into technical solutions. For many years, he has provided guidance on delivering client solutions involving complex business systems. 

Before co-founding Keystone, Bill provided programming, consulting and systems analysis through computer consulting firms. Bill's primary focus has always been to extract the optimum level of benefit from the software for each and every one of his customers. By following this focus, Bill has been successful in helping area businesses reach their potential through the use of Sage 100 (Formerly Sage MAS 90 & MAS 200) software for over twenty  years.


Bill is also a Sage 100 Certified Consultant

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Sam Wandzilak Co-founded Keystone Software Solutions, Inc. in May of 1998. His broad experience in implementing accounting software systems and supporting the technical aspects of management information systems allows him to excel in this position. Sam's genuine concern for Keystone clients and their businesses also contribute to a level of dedication that is second to none. An expert in terms of Sage 100 (Formerly Sage 100 MAS 90 & MAS 200) client training procedures and implementation practices, Sam is a valuable asset to the ongoing success of Keystone Software's technical staff.

Sam continues to develop our technical team and also helps to broaden the scope of service offerings. He works closely with the consulting team to develop client solutions for using business management software tools. In addition, Sam is a Sage Software Certified Trainer, and complements his technical knowledge with classroom training in our Training Center.

Before co-founding Keystone, Sam provided Sage 100 (Formerly Sage 100 MAS 90 & MAS 200) training, implementation, and ongoing support for various consulting firms. In addition, Sam was an experienced controller for a local manufacturing company.


Sam is also a Sage 100 Certified Consultant.

Stacy Greer
Office Manager

Stacy has been with Keystone Software Solutions Inc. since early 2007. She is responsible for daily operations and internal accounting at the firm. Stacy enjoys speaking with customers on a regular basis as she answers incoming calls and routes them appropriately. The wide variety of tasks assigned to her ensures that no day is ever the same as the last.


Matt Kercher

Matthew is a Certified Sage 100 Technical Consultant and continues to expand his Sage 100 certifications. Matthew lives in Reading, PA with his wife and son and enjoys family, archery, and travelling. In addition to his Sage 100 certification, Matthew holds a Bachelor of Science Degree in Education from Penn State University.

When you work with Matt, you can expect responsive, knowledgeable and, above all, friendly service. He is passionate about his work and passionate about inspiring others to see the value in the hard work that goes into the job, as well as the rewards that result.

Before joining Keystone, Matt was a certified educator teaching children in grades 5th and 6th. Matts experience as an educator is well suited to work with Keystone’s clients as he implements, trains and supports customers on Sage 100 best practices.

Matt is also a Sage 100 Certified Consultant.

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“We're a small and growing consultancy. We look forward to meeting you and your team and helping you define your goals, develop solutions - and realize them! So what are you waiting for, let's meet" 

Bill Delgado, President, Keystone Software Solutions

Providing SAGE 100 Business and Accounting Software and Services 

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