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RWS Information Systems was founded in 1991. In its earliest years, RWS was dedicated to providing fully integrated inventory management and control solutions as well as the expertise to business owners on how to manage their inventory levels and purchasing options most effectively. We worked with businesses on establishing ideal stock levels, seasonal rotation of stocks, and open-to-buy plans.

In 2006 RWS identified the need for a simpler, easy-to-use, and reasonably-priced inventory control solution. We determined that the ideal platform for this would be Excel-based, since Excel is the world's most used spreadsheet program in the world. Two years later, InventoryMagic was born.


Throughout the following decade RWS also identified the need for our clients to track time segments...for employees, for projects, for billing purposes, etc. And naturally we wanted to use the ubiquitous business software program Excel to handle this too. A year later, TimeTracker was born.

Our newest venture is working with QR codes for our clients, a technology that was introduced 20 years ago, but has become one of the fastest-growing methods for businesses to reach their customers and provide easy access to the information that they want to share.

 RWS Information Systems is a professional partnership with three founding members:

Ladies first—Deborah Levine is a marketing expert who earned her stripes in the cosmetic industry after completing her MBA in marketing. She worked at Revlon and Almay cosmetics, along with consulting on open-to-buy solutions for several national department stores.

The men—Bob Umlas is the author of several books and scores of articles on Microsoft Excel. He is and has been a Microsoft MVP for 25 consecutive years (a record). Bob conducts monthly Zoom webinars on Advanced Excel Features in addition to Excel work for his corporate clients.

Bob Schuster is the Solutions Guy who is always thinking outside the box. Bob has extensive experience in the retail and restaurant industries, focusing on technology solutions to everyday problems. He is most proud of creating Return Factors for restaurants

Contact Us

Contact Us

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Ph: (310) 489-5557

Fx: (949) 334-1599

32565 Golden Lantern

Dana Point, CA 92629

Hours by Appointment

Online meetings via Zoom

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