Wall Street 50 - 2009

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Marianne Brown/Omgeo LLC

Marianne C. Brown is president and CEO of Omgeo L.L.C. Marianne is an accomplished chief executive with a proven track record of driving revenue and income growth within complex global organizations. Prior to joining Omgeo in 2006, Marianne served as CEO of Securities Industry Automation Corporation. She began her career in 1978 at Automatic Data Processing, Brokerage Services Group, now known as Broadridge Financial Services, where she remained until 2005. Throughout her 26 years at ADP, she held numerous positions that provided a broad swath of experience. Marianne has been profiled extensively in the press, in outlets such as CNBC’s Squawk Box, The Wall Street Journal, and Wall Street & Technology.

A native of Brooklyn, NY, Marianne is a graduate of Concordia College with a degree in business. Marianne is a second-generation Irish American, and her father’s side of the family came from County Fermanagh. She lives in Westchester, NY with her husband and son.