DUBLIN, IRELAND--(Marketwire - May 23, 2011) - Management World 2011 -- Sigma Systems, an industry leader in Advanced IP Service Fulfillment solutions, today announced Brian Cappellani, the company's CTO and vice president of Engineering, was named to Billing and OSS World's annual list of the Top 25 Most Influential. Joining representatives from AT&T, Verizon and Google, this honor is the first for Brian, who has served as an Advisory Director to the TM Forum's Board of Directors.

"Over my years with Sigma Systems, our company has been dedicated to enabling OSS service transformation for next-generation operators (NGOs) around the world," said Brian Cappellani, CTO and vice president of Engineering for Sigma Systems. "This honor is not only a validation of Sigma Systems' product vision and execution, but also of the company's success in enabling NGOs to transform their back office and roll out innovative IP-based service bundles. As we continue to innovate and develop new service fulfillment solutions at Sigma Systems, we are looking forward to assisting our customers through their next phase of residential and business services evolution."

Responsible for the architectural and technology vision for Sigma Systems' award-winning product portfolio, highlighted by the Service Management Platform, Brian has assisted cable, mobile and telco operators around the world to eliminate IT back-office silos and deliver integrated service transformation projects across their multi-technology networks. As service providers transform into NGOs, with a variety of different network and service delivery systems, Brian and Sigma Systems have worked with customers to deliver a unified view of bundled services, and enabling service-layer fulfillment across any network technology. With the growth of fiber-to-the-home (FTTH) networks, Brian also led the Sigma Systems team in the development of the Telco Services Accelerator, which serves Bell Aliant in Canada and Italy's Tiscali.

About Sigma Systems
Sigma Systems is the proven global leader in delivering advanced IP service fulfillment solutions. Sigma Systems' powerful solutions enable the world's Next-Generation Operators (NGOs) to Deliver a Rich Consumer Experience through communications and entertainment services -- over any access technology to any device. NGOs around the globe -- including Bell Aliant, Cox, Rogers, YouSee, NETServicos, Technology Networks, and iTSCOM -- trust Sigma Systems for service transformation and innovative solutions with market-leading expertise for the delivery of today's -- and tomorrow's -- new services. For more information about Sigma Systems, visit http://www.sigma-systems.com and follow the company on Twitter at http://twitter.com/sigmasystems.

Contact Information:

Media contact:

Preston Gilmer
VP of Marketing
Sigma Systems

+1 (615) 338-4016
Sigma Systems on Twitter: http://twitter.com/sigmasystems