OES will provide Portware with Reg NMS-compliant trading center connectivity for outbound router services, enabling Portware's sell-side clients to meet mandatory trading and compliance requirements of Reg NMS.

"National Market System connectivity and the ability to provide our clients with excellent NMS-compliant routing services is essential in today's fast moving and competitive trading environment," said Portware CEO Eric Goldberg. "By teaming with OES, a leader in achieving Reg NMS compliance, Portware is able to continue to provide robust and scaleable solutions for the changing regulatory and market landscape."

OES delivers connectivity to a growing worldwide network of securities industry leaders including market centers NYSE Arca, the Philadelphia Stock Exchange (PHLX), the ISE Stock Exchange, and top broker-dealers.

"OES is justifiably proud of the reputation we have earned in serving the needs of leading industry players, including exchanges, market centers and others, who bank on us to help them meet their Reg NMS obligations," said Michael A. Barth, executive vice president, Strategic Initiatives, for the OES MarketGroup.

"Now," he said, "with the addition of Portware to our prestigious Reg NMS client list, OES continues to expand its business across oceans and national boundaries, further demonstrating our leadership in solving critical needs of a variety of firms under Reg NMS compliance."