George Sirignano vs James R O Brien

George Sirignano vs James R O Brien

George Sirignano is a individual/angel based in New York. James R O Brien is a individual/angel based in New York.

• Investor type: George Sirignano — Individual/Angel; James R O Brien — Individual/Angel
• Headquarters: George Sirignano — New York; James R O Brien — New York

• George Sirignano — Individual/Angel · New York · George Sirignano portfolio
• James R. O'Brien — Individual/Angel · New York · James R O Brien portfolio

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