Bourse Europe Est

O Twelve Estates Limited
Oak Holdings plc
Obtala Resources Plc
Ocean Wilsons Holdings Ltd
Ockham Holdings PLC
OEM PLC 
Offshore Telecom PLC 
Old Monk Company plc (The) 
Old Mutual plc DJ Stoxx INSURANCE
Old Mutual South Africa Trust plc
OMG PLC
On-Line PLC
OneClickHR plc
OneSaturday plc
Online Sports & Leisure plc
Online Travel Corporation plc
OPSEC SECURITY GROUP PLC P
Optoplast plc
OPTOS PLC
Orbis PLC
Orchestream Holdings plc
Osborne & Little plc 
Osmetech PLC
Ottakar's PLC
OverNet Data PLC
Owl Technologies Limited
Oxford BioMedica PLC
Oxford Instruments PLC
Oxford Technology 2 Venture Capital Trus 
Oxus Mining PLC
Oystertec PLC