- JOHN MATTHEW O'HALLORAN- Born May 1977 - 17 ALEXANDER DRIVE, GATEFORD, WORKSOP, S81 7NP 
- JOHN WILLIAM O'HALLORAN- Born July 1947 - 192 GARTH ROAD, MORDEN, SURREY, SM4 4LU 
- MICHAEL JOHN O'HALLORAN- Born July 1948 - BLOCK 68 DABBS HILL LANE, NORTHOLT, MIDDLESEX, UB5 4DA 
- JOHN EDWARD O'HALLORAN- Born January 1983 - UNIT 4 HURRICANE DRIVE, HURRICANE BUSINESS PARK, LIVERPOOL, MERSEYSIDE, ENGLAND, L24 8RL 
- JOHN STEPHEN O'HALLORAN- Born January 1952 - "BRANKSOME" MANOR CRESCENT, BEACONSFIELD, BUCKINGHAMSHIRE, HP9 2QX 
- JOHN WILLIAM O'HALLORAN- Born July 1947 - 192 GARTH ROAD, MORDEN, SURREY, SM4 4LU 
- Brendan John O'HALLORAN- Born February 1966 - Excavation & Contracting (Environmental) Co Ltd West Quay Road, Winwick, Warrington, England, WA2 8TL 
- JOHN WILLIAM O'HALLORAN- Born July 1947 - THE OLD WHEELHOUSE CHURCH STREET, REIGATE, ENGLAND, RH2 0AD 
- STEPHEN JOHN O'HALLORAN- ROSEBANK CHADEL LANE, BLACKPOOL, EAST SUSSEX, TN22 5LB 
- ZONEBLUE LIMITEDDissolved- 05283121 - Dissolved on 9 April 2019 
- M.HALLORAN SERVICES LTD.Active - Proposal to Strike off- 09293145 - Incorporated on 3 November 2014 
- DERMOTMURPHYDIGITAL LIMITEDActive - Proposal to Strike off- NI665467 - Incorporated on 30 October 2019 
- JOHN WILLIAM O'HALLORAN- Born July 1947 - MADISON HOUSE, 1 CHURCH STREET, REIGATE, SURREY, RH2 0AA 
- JOHN FRANCIS O'HALLORAN- Born May 1982 - FLAT 13 51 PACKINGTON STREET, LONDON, ENGLAND, N1 7FZ 
- STEPHEN JOHN O'HALLORAN- Born September 1945 - ROSEBANK CHAPEL LANE, BLACKPOOL, EAST SUSSEX, ENGLAND, TN22 5LB 
- ANN HALLORAN LIMITED- 09341053 - Incorporated on 4 December 2014 
- MATT O'HALLORAN HAULAGE LIMITED- 12883290 - Incorporated on 16 September 2020 
- MR NEVILLE ALPHONSO JOHNSON & MRS JULIE LYNN DOLAN (THE ANVIL PLACE) WALMLEY UK LIMITEDActive - Proposal to Strike off- 08021904 - Incorporated on 5 April 2012 
- JOHN ARTHUR O HALLORAN- Born October 1928 - HYDE GRANGE, CHALFORD, STROUD, GLOUCESTERSHIRE, GL6 8PA 
- HALLORAN CREATIVE LTD- 16420315 - Incorporated on 30 April 2025