The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers who have significant controls over the individuals in focus are always inapplicable. The offspring entities and appointments are those entities that the individuals in focus can influence on.
Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.
Jump to: Offsprings
Parent entities and officers
Inapplicable
Individuals in focus
John Charles Mayo
- British born in April 1956
John Charles Mayo
Resident in United Kingdom
Registered addresses and corresponding companies12 Bedford Square, London, Wc1b3ra, United Kingdom
IIF 1
- British born in April 1956
Mr John Charles Mayo
Resident in United Kingdom
Registered addresses and corresponding companies - British born in April 1956
Mayo, John Charles
Resident in United Kingdom
Registered addresses and corresponding companies20-22, Wenlock Road, London, N1 7GU, England
IIF 4 IIF 5Leverton House, 13 Bedford Square, London, WC1B 3RA
IIF 6 IIF 7Leverton House, 13 Bedford Square, London, WC1B 3RA, England
IIF 8Leverton House, 13 Bedford Square, London, WC1B 3RA, United Kingdom
IIF 9 IIF 10Suite 10, 25- 27 Heath Street, Hampstead, London, NW3 6TR, England
IIF 11
- British born in April 1956
Mr John Mayo
Resident in United Kingdom
Registered addresses and corresponding companiesLeverton House, 13 Bedford Square, London, WC1B 3RA, United Kingdom
IIF 12
- British born in April 1956
Mr John Charles Mayo
Resident in England
Registered addresses and corresponding companiesLeverton House, 13 Bedford Square, London, WC1B 3RA, England
IIF 13
- British born in April 1956
Mr John Charles Mayo Cbe
Resident in England
Registered addresses and corresponding companies - British born in April 1956
Mayo, John Charles
Resident in England
Registered addresses and corresponding companies1 Ellerdale Close, Hampstead, London, NW3 6BE
IIF 16 IIF 17 IIF 18 (more)(less)201, Bishopsgate, London, EC2M 3AF
IIF 30 IIF 31201, Bishopsgate, London, EC2M 3AF, United Kingdom
IIF 32 IIF 33 IIF 34 (more)(less)21-27, Lamb's Conduit Street, London, WC1N 3GS
IIF 3721-27, Lambs Conduit Street, London, WC1N 3GS, England
IIF 3888, Wood Street, London, EC2V 7QF
IIF 39Leverton House, 13 Bedford Square, London, WC1B 3RA
IIF 40Mayer Brown International Llp, 201 Bishopsgate, London, EC2M 3AF, United Kingdom
IIF 41 IIF 42Mercury House, Triton Court, 14 Finsbury Square, London, EC2A 1BR
IIF 43 IIF 44 IIF 45 (more)(less)2, Toomers Wharf, Canal Walk, Newbury, Berkshire, RG14 1DY, England
IIF 484th, Floor Reading Bridge House, George Street, Reading, Berkshire, RG1 8LS, England
IIF 49
- born in April 1956
Mayo, John Charles
Resident in England
Registered addresses and corresponding companies - British Registered addresses and corresponding companies
Mayo, John Charles
201, Bishopsgate, London, EC2M 3AF, United Kingdom
IIF 55
Related profiles found in government register
Offspring entities and appointments
47
- 1Insolvency (Case 1) Members voluntary liquidation
Commencement of winding up on 2019-05-29 during the appointment or period of control
Dissolved on 2020-09-04 during the appointment or period of controlCHINA CALL LIMITED
- 2016-04-02 04288675THE SCHOOL ENTERPRISE FRANCHISEE LIMITED
- 2009-02-17 04288675S A COMMUNICATIONS LTD
- 2008-06-18 04288675MANN MANAGEMENT LIMITED
- 2003-04-18 04288675109 Swan Street, Sileby, Loughborough, LeicestershireDissolved Corporate (8 parents)Officer2001-09-17 ~ dissolvedIIF 6 - Director → ME - 2AGILISYS CONTACT SERVICES LIMITED - now
C0NTACT PARTNERS LIMITED
- 2006-03-06 04288680Scale Space Imperial College White City Campus, 58 Wood Lane, London, United KingdomActive Corporate (26 parents)Officer2001-09-17 ~ 2004-07-23IIF 20 - Director → ME - 3AH ANIMAL HEALTHCARE LIMITED - now
CAMBRIDGE BIOMANUFACTURING LIMITED
- 2009-09-29 06004833XENOVA BIOMANUFACTURING LIMITED
- 2007-01-10 060048334th Floor Phoenix House, 1 Station Hill, Reading, Berkshire, United KingdomDissolved Corporate (11 parents)Officer2006-11-21 ~ 2017-05-29IIF 40 - Director → ME - 4ASCENSION HEALTHCARE DEVELOPMENT LIMITED - nowInsolvency (Case 1) In administration
Administration started on 2024-11-08
Administration ended on 2025-11-07CANTAB ANTI-INFECTIVES LIMITED
- 2019-01-16 08217622C/o Alixpartners Uk Llp, 6 New Street Square, LondonActive Corporate (9 parents)Officer2012-09-17 ~ 2017-05-29IIF 34 - Director → ME - 5ASCENSION HEALTHCARE PLC - nowInsolvency (Case 1) In administration
Administration started on 2024-11-08
Administration ended on 2025-11-07Insolvency (Case 2) Compulsory liquidation
Petition date on 2025-10-21
Commencement of winding up on 2025-11-07C/o Alixpartners Uk Llp, 6 New Street Square, LondonLiquidation Corporate (24 parents, 4 offsprings)Officer2013-09-25 ~ 2017-05-29IIF 32 - Director → ME - 6ASTRAZENECA PLC - now
ZENECA GROUP PLC
- 1999-04-05 02723534HACKPLIMCO (NO. FIVE) PUBLIC LIMITED COMPANY
- 1993-02-16 02723534ICI BIOSCIENCE PLC - 1992-09-25HACKPLIMCO (NO.FIVE) PUBLIC LIMITED COMPANY - 1992-07-131 Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge, United KingdomActive Corporate (67 parents, 2 offsprings)Officer1993-02-15 ~ 1997-10-01IIF 18 - Director → ME - 7
PRO BONO BIO ROYALTIES BOX LIMITED
- 2013-05-20 077543914th Floor Reading Bridge House, George Street, Reading, BerkshireDissolved Corporate (5 parents)Officer2011-08-26 ~ dissolvedIIF 49 - Director → ME - 8Insolvency (Case 1) Creditors voluntary liquidation
Commencement of winding up on 2017-11-30 during the appointment or period of control
Dissolved on 2024-04-17 during the appointment or period of controlBEEHIVE INNOVATIONS LTD
- 2014-09-08 08142348Greenfield Recovery Limited, 28-30 Blucher Street, BirminghamDissolved Corporate (12 parents)Officer2012-07-13 ~ dissolvedIIF 8 - Director → MEPerson with significant control2016-04-06 ~ dissolvedIIF 13 - Ownership of voting rights - More than 50% but less than 75% → OEIIF 13 - Ownership of shares – More than 50% but less than 75% → OE - 9
BEEHIVE CAPITAL FOPEF ADVISORS LLP
OC348691Leverton House, 13 Bedford Square, LondonDissolved Corporate (6 parents)Officer2009-09-17 ~ dissolvedIIF 54 - LLP Designated Member → ME - 10
THE STRATEGIC FINANCIAL ADVICE COMPANY LLP
- 2006-12-07 OC30345121-27 Lamb's Conduit Street, LondonActive Corporate (2 parents, 5 offsprings)Officer2002-11-27 ~ nowIIF 52 - LLP Designated Member → MEPerson with significant control2016-04-06 ~ nowIIF 15 - Ownership of voting rights - 75% or more → OEIIF 15 - Right to surplus assets - 75% or more → OE - 11
BUZZ (HOLDINGS) LLP
OC3805354th Floor, Reading Bridge House George Street, Reading, BerkshireDissolved Corporate (7 parents)Officer2012-11-27 ~ dissolvedIIF 50 - LLP Designated Member → ME - 12
CELTIC PHARMA DEVELOPMENT SERVICES EUROPE LIMITED
055772284th Floor Reading Bridge House, George Street, Reading, Berkshire, EnglandDissolved Corporate (7 parents)Officer2005-10-11 ~ dissolvedIIF 42 - Director → ME - 13
CELTIC PHARMA DEVELOPMENT UK PLC
05481475Insolvency (Case 1) Creditors voluntary liquidation
Commencement of winding up on 2014-04-15 during the appointment or period of control
Dissolved on 2017-08-17 during the appointment or period of controlFirst Floor, 1 East Poultry Avenue, LondonDissolved Corporate (5 parents)Officer2005-06-15 ~ dissolvedIIF 35 - Director → ME2005-06-15 ~ dissolvedIIF 55 - Secretary → ME - 14
- 15
CELTIC PHARMA MANAGEMENT SERVICES EUROPE LIMITED
055772254th Floor Reading Bridge House, George Street, Reading, Berkshire, EnglandDissolved Corporate (5 parents)Officer2005-10-11 ~ dissolvedIIF 41 - Director → ME - 16
CUMBERLAND INITIATIVE LIMITED
098150172 Toomers Wharf, Canal Walk, Newbury, Berkshire, EnglandDissolved Corporate (8 parents)Officer2018-12-14 ~ 2023-10-18IIF 48 - Director → ME - 17Insolvency (Case 1) Members voluntary liquidation
Commencement of winding up on 2020-02-28
Dissolved on 2020-12-30EVER 1484 LIMITED - 2001-06-12Pem Salisbury House, Station Road, CambridgeDissolved Corporate (19 parents)Officer2005-08-31 ~ 2006-07-28IIF 43 - Director → ME - 18HOTPOINT LIMITED - 1990-03-30BRITISH DOMESTIC APPLIANCES LIMITED - 1975-05-15A. E. I. APPLIANCES LIMITED - 1966-06-29THE HOTPOINT ELECTRIC APPLIANCE COMPANY LIMITED - 1961-01-30Morley Way, PeterboroughActive Corporate (63 parents, 6 offsprings)Officer1997-10-22 ~ 2001-04-09IIF 24 - Director → ME
- 19
S. A. INVESTORS LIMITED
- 2018-09-07 0428867221-27 Lamb's Conduit Street, LondonActive Corporate (7 parents, 1 offspring)Officer2001-09-17 ~ nowIIF 37 - Director → MEPerson with significant control2016-04-06 ~ 2020-11-24IIF 14 - Ownership of shares – More than 25% but not more than 50% → OEIIF 14 - Ownership of voting rights - More than 25% but not more than 50% → OE - 20
HJM PROPERTIES LTD
1250289420-22 Wenlock Road, London, EnglandActive Corporate (2 parents)Officer2020-03-06 ~ nowIIF 5 - Director → MEPerson with significant control2020-03-06 ~ nowIIF 3 - Has significant influence or control → OE - 21Insolvency (Case 1) Members voluntary liquidation
Commencement of winding up on 2016-06-23
Dissolved on 2017-07-28IMPKEMIX (NO.5) LIMITED - 1978-12-31Deloitte Llp, Po Box 500 2 Hardman Street, ManchesterDissolved Corporate (31 parents)Officer1993-01-14 ~ 1997-09-16IIF 28 - Director → ME - 22
KKCJ LTD
081786054th Floor, Reading Bridge House George Street, Reading, BerkshireDissolved Corporate (2 parents)Officer2012-08-14 ~ 2016-04-01IIF 9 - Director → ME - 23
LONDON INVESTORS LLP
OC3769244th Floor, Reading Bridge House George Street, Reading, BerkshireDissolved Corporate (2 parents)Officer2012-07-13 ~ dissolvedIIF 51 - LLP Designated Member → ME - 24M (2003) PLC - nowInsolvency (Case 1) Members voluntary liquidation
Commencement of winding up on 2006-10-27
Dissolved on 2014-02-05MARCONI PLC
- 2003-10-21 038464298 Salisbury Square, LondonDissolved Corporate (29 parents)Officer1999-10-04 ~ 2001-07-06IIF 25 - Director → ME - 25M (DGP2) LIMITED - nowInsolvency (Case 1) Members voluntary liquidation
Commencement of winding up on 2015-05-05
Due to be dissolved on 2015-11-13SERTICA LIMITED - 1998-05-20Point 3 Haywood Road, WarwickDissolved Corporate (15 parents)Officer1998-06-05 ~ 2001-07-06IIF 27 - Director → ME - 26NEWCASTLE UNITED LIMITED - nowNOVOCASTRIA LIMITED - 2010-08-27ISSUEBONUS LIMITED - 1990-09-24St. James' Park, Newcastle Upon TyneActive Corporate (37 parents, 22 offsprings)Officer1997-02-27 ~ 1998-05-27IIF 21 - Director → ME
- 27CANTAB PHARMACEUTICALS LIMITED - 2004-07-09CANTAB PHARMACEUTICALS PLC - 2003-01-08CANTAB PHARMACEUTICALS LIMITED - 1992-03-19INTERCEDE 941 LIMITED - 1992-03-094th Floor Reading Bridge House, George Street, Reading, Berkshire, EnglandDissolved Corporate (31 parents)Officer2005-09-01 ~ dissolvedIIF 45 - Director → ME
- 28
OPTIBIO LIMITED
10782195Suite 10 25- 27 Heath Street, Hampstead, London, EnglandDissolved Corporate (2 parents)Officer2017-05-22 ~ dissolvedIIF 11 - Director → MEPerson with significant control2017-05-22 ~ dissolvedIIF 1 - Ownership of voting rights - More than 25% but not more than 50% as a member of a firm → OEIIF 1 - Ownership of shares – More than 25% but not more than 50% as a member of a firm → OE - 29PENTLAND BRANDS LAKESIDE LIMITED - nowPENTLAND BRANDS LAKESIDE PLC - 2016-07-07PENTLAND BRANDS PLC - 2016-01-12PENTLAND BRANDS PLC - 2010-04-07BERTRAMS INVESTMENT TRUST PLC - 1989-07-31BERTRAMS PUBLIC LIMITED COMPANY - 1986-05-16115 4th Floor, 115 George Street, EdinburghActive Corporate (34 parents, 1 offspring)Officer1993-12-08 ~ 1999-11-15IIF 26 - Director → ME
- 30
PRO BONO BIO ENTREPRENEUR LIMITED
07805302Insolvency (Case 1) In administration
Administration started on 2024-11-08
Administration ended on 2025-11-07Insolvency (Case 2) Compulsory liquidation
Commencement of winding up on 2025-11-07C/o Alixpartners Uk Llp 6, New Street Square, LondonLiquidation Corporate (12 parents)Officer2011-10-11 ~ 2017-05-29IIF 36 - Director → ME - 31
PRO BONO BIO GROUP PLC
07802577Insolvency (Case 1) Compulsory liquidation
Petition date on 2025-05-16
Commencement of winding up on 2025-07-074th Floor Phoenix House, 1 Station Hill, Reading, Berkshire, United KingdomLiquidation Corporate (11 parents, 1 offspring)Officer2011-10-07 ~ 2017-05-29IIF 33 - Director → ME - 32R&Q BETA COMPANY PLC - nowR&Q BETA COMPANY LIMITED - 2018-04-13ASTRAZENECA INSURANCE COMPANY LIMITED - 2017-07-03
ZENECA INSURANCE COMPANY LIMITED
- 1999-11-19 02881849ZENECA UNDERWRITING LIMITED
- 1994-09-01 02881849HACKREMCO (NO.903) LIMITED - 1994-06-2971 Fenchurch Street, London, United KingdomConverted / Closed Corporate (28 parents)Officer1994-06-30 ~ 1997-09-16IIF 29 - Director → ME - 33
MEGHI LTD
- 2017-09-14 1037599821-27 Lambs Conduit Street, London, EnglandDissolved Corporate (3 parents)Officer2016-09-14 ~ dissolvedIIF 10 - Director → MEPerson with significant control2016-09-14 ~ dissolvedIIF 12 - Right to appoint or remove directors → OEIIF 12 - Ownership of voting rights - 75% or more → OEIIF 12 - Ownership of shares – 75% or more → OE - 34S.G. SECURITIES U.K. LIMITED - now
S.G.WARBURG & CO.LIMITED
- 2003-06-06 002926895 Broadgate, London, United KingdomActive Corporate (214 parents)Officer(before 1992-07-11) ~ 1992-09-25IIF 22 - Director → ME - 35
SPM PROPERTIES LTD
1250288820-22 Wenlock Road, London, EnglandActive Corporate (2 parents)Officer2020-03-06 ~ nowIIF 4 - Director → MEPerson with significant control2020-03-06 ~ nowIIF 2 - Has significant influence or control → OE - 36SYNGENTA LIMITED - now
ZENECA LIMITED
- 2000-11-21 02710846Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, United KingdomActive Corporate (46 parents)Officer(before 1992-12-10) ~ 1997-10-01IIF 16 - Director → ME - 37
- 38TELENT TECHNOLOGY SERVICES LIMITED - nowTELENT COMMUNICATIONS LIMITED - 2008-03-03MARCONI COMMUNICATIONS LIMITED - 2006-01-24
GPT LIMITED
- 1998-09-10 00703317GEC PLESSEY TELECOMMUNICATIONS LIMITED - 1991-04-02GEC TELECOMMUNICATIONS LIMITED - 1989-04-01Abel Smith House, Gunnels Wood Road, Stevenage, EnglandActive Corporate (84 parents, 6 offsprings)Officer1997-11-07 ~ 1998-08-17IIF 17 - Director → ME - 39TUSK CORPORATION HOLDINGS LIMITED - nowTELENT COMMUNICATIONS HOLDINGS LIMITED - 2025-08-13MARCONI COMMUNICATIONS HOLDINGS LIMITED - 2006-03-21
GPT HOLDINGS LIMITED
- 1998-12-04 00319092PLESSEY TELECOMMUNICATIONS (INTERNATIONAL) LIMITED - 1990-04-17PLESSEY MEDITERRANEAN & MIDDLE EAST LIMITED - 1983-05-13PLESSEY APPLIED MICROELECTRONICS LIMITED - 1978-12-31INTERNATIONAL AUTOMATIC TELEPHONE AND ELECTRIC CO. LIMITED (THE) - 1978-12-314th Floor, 95 Gresham Street, London, EnglandActive Corporate (36 parents, 1 offspring)Officer1997-11-07 ~ 1998-08-17IIF 19 - Director → ME - 40TUSK CORPORATION LIMITED - nowTELENT LIMITED - 2025-08-13TELENT PLC - 2008-03-03
MARCONI CORPORATION PLC
- 2006-01-24 00067307GENERAL ELECTRIC COMPANY P L C(THE)
- 2000-03-07 00067307GENERAL ELECTRIC COMPANY P. L. C.(THE) - 1985-10-044th Floor, 95 Gresham Street, London, EnglandActive Corporate (71 parents, 14 offsprings)Officer1997-10-01 ~ 2001-01-26IIF 23 - Director → ME - 41
VINTAGE ENTERTAINMENT LIMITED
07168296Insolvency (Case 1) In administration
Administration started on 2018-10-02 during the appointment or period of control
Administration ended on 2020-05-12 during the appointment or period of control88 Wood Street, LondonDissolved Corporate (15 parents, 2 offsprings)Officer2016-11-02 ~ dissolvedIIF 39 - Director → ME - 42K S BIOMEDIX LIMITED - 2003-12-23STEADY PROGRESSION LIMITED - 1990-03-094th Floor Reading Bridge House, George Street, Reading, Berkshire, EnglandDissolved Corporate (20 parents)Officer2005-09-01 ~ dissolvedIIF 47 - Director → ME
- 43Insolvency (Case 1) Creditors voluntary liquidation
Commencement of winding up on 2014-04-15 during the appointment or period of control
Dissolved on 2017-08-17 during the appointment or period of controlXENOVA GROUP PLC
- 2005-09-01 02698673TRUSHELFCO (NO.1796) LIMITED - 1992-05-22First Floor, 1 East Poultry Avenue, LondonDissolved Corporate (37 parents)Officer2005-08-31 ~ dissolvedIIF 31 - Director → ME - 44K S BIOMEDIX HOLDINGS LIMITED - 2004-08-26K S BIOMEDIX HOLDINGS PLC - 2004-08-064th Floor Reading Bridge House, George Street, Reading, Berkshire, EnglandDissolved Corporate (20 parents)Officer2005-09-01 ~ dissolvedIIF 44 - Director → ME
- 45Insolvency (Case 1) Creditors voluntary liquidation
Commencement of winding up on 2014-04-15 during the appointment or period of control
Dissolved on 2017-08-17 during the appointment or period of controlINGENUM LIMITED - 1986-10-24TWENTY-SIXTH SHELF INVESTMENT COMPANY LIMITED - 1986-02-28First Floor, 1 East Poultry Avenue, LondonDissolved Corporate (31 parents)Officer2005-09-01 ~ dissolvedIIF 30 - Director → ME - 46
XENOVA OX - 400 LIMITED
064269264th Floor Reading Bridge House, George Street, Reading, Berkshire, EnglandDissolved Corporate (5 parents)Officer2007-11-15 ~ dissolvedIIF 7 - Director → ME - 47CANTAB PHARMACEUTICALS RESEARCH LIMITED - 2001-05-29IMMUNOLOGY LIMITED - 1992-04-06IMMUNOLOGY COMPANY LIMITED - 1989-02-13THE IMMUNOLOGY COMPANY LIMITED - 1988-12-05LEGIBUS 1244 LIMITED - 1988-10-064th Floor Reading Bridge House, George Street, Reading, Berkshire, EnglandDissolved Corporate (29 parents)Officer2005-08-31 ~ dissolvedIIF 46 - Director → ME
The content of this website is protected by AgonGuard.
© 2022- Polylogarithmic Technology Ltd (Registered in England and Wales No. 14256313). All rights reserved.
Contains public sector information retrieved at 14 July 2026 and
licensed under the Open Government Licence v3.0.