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
Mayo, John Charles
- British born in May 1956
Mayo, John Charles
Resident in England
Registered addresses and corresponding companies - British chartered accountant born in May 1956
Mayo, John Charles
Resident in England
Registered addresses and corresponding companies - British company director born in May 1956
Mayo, John Charles
Resident in England
Registered addresses and corresponding companies - British deputy chief executive officer born in May 1956
Mayo, John Charles
Resident in England
Registered addresses and corresponding companies - British director born in May 1956
Mayo, John Charles
Resident in England
Registered addresses and corresponding companies1 Ellerdale Close, Hampstead, London, NW3 6BE
IIF 11 IIF 12201, Bishopsgate, London, EC2M 3AF
IIF 13 IIF 14201, Bishopsgate, London, EC2M 3AF, United Kingdom
IIF 1588, Wood Street, London, EC2V 7QF
IIF 16Leverton House, 13 Bedford Square, London, WC1B 3RA
IIF 17Mayer Brown International Llp, 201 Bishopsgate, London, EC2M 3AF, United Kingdom
IIF 18 IIF 19Mercury House, Triton Court, 14 Finsbury Square, London, EC2A 1BR
IIF 202, Toomers Wharf, Canal Walk, Newbury, Berkshire, RG14 1DY, England
IIF 21
- British finance director born in May 1956
Mayo, John Charles
Resident in England
Registered addresses and corresponding companies - British investment banker born in May 1956
Mayo, John Charles
Resident in England
Registered addresses and corresponding companies1 Ellerdale Close, Hampstead, London, NW3 6BE
IIF 30
- born in May 1956
Mayo, John Charles
Resident in England
Registered addresses and corresponding companies - British born in May 1956
Mr John Charles Mayo
Resident in England
Registered addresses and corresponding companiesLeverton House, 13 Bedford Square, London, WC1B 3RA, England
IIF 35
- British born in May 1956
Mayo, John Charles
Resident in United Kingdom
Registered addresses and corresponding companies - British accountant born in May 1956
Mayo, John Charles
Resident in United Kingdom
Registered addresses and corresponding companiesSuite 10, 25- 27 Heath Street, Hampstead, London, NW3 6TR, England
IIF 38
- British chartered accountant born in May 1956
Mayo, John Charles
Resident in United Kingdom
Registered addresses and corresponding companies - British director born in May 1956
Mayo, John Charles
Resident in United Kingdom
Registered addresses and corresponding companies - British investor and company directorRegistered addresses and corresponding companies
Mayo, John Charles
201, Bishopsgate, London, EC2M 3AF, United Kingdom
IIF 44
- British born in May 1956
Mr John Charles Mayo Cbe
Resident in England
Registered addresses and corresponding companies - British born in May 1956
Mr John Charles Mayo
Resident in United Kingdom
Registered addresses and corresponding companies - British born in May 1956
Mr John Mayo
Resident in United Kingdom
Registered addresses and corresponding companiesLeverton House, 13 Bedford Square, London, WC1B 3RA, United Kingdom
IIF 49
- British born in May 1956
John Charles Mayo
Resident in United Kingdom
Registered addresses and corresponding companies12 Bedford Square, London, Wc1b3ra, United Kingdom
IIF 50
Related profiles found in government register
Offspring entities and appointments
42
- 1
CHINA 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 (6 parents)Officer2001-09-17 ~ dissolvedIIF 41 - 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 11 - 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 17 - Director → ME - 4ASCENSION HEALTHCARE DEVELOPMENT LIMITED - now
CANTAB ANTI-INFECTIVES LIMITED
- 2019-01-16 08217622C/o Alixpartners Uk Llp, 6 New Street Square, LondonActive Corporate (6 parents)Officer2012-09-17 ~ 2017-05-29IIF 2 - Director → ME - 5ASCENSION HEALTHCARE PLC - nowC/o Alixpartners Uk Llp, 6 New Street Square, LondonLiquidation Corporate (20 parents, 4 offsprings)Officer2013-09-25 ~ 2017-05-29IIF 1 - 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 24 - 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 6 - Director → ME - 8
BEEHIVE INNOVATIONS LTD
- 2014-09-08 08142348Greenfield Recovery Limited, 28-30 Blucher Street, BirminghamDissolved Corporate (6 parents)Officer2012-07-13 ~ dissolvedIIF 39 - Director → MEPerson with significant control2016-04-06 ~ dissolvedIIF 35 - Ownership of voting rights - More than 50% but less than 75% → OEIIF 35 - Ownership of shares – More than 50% but less than 75% → OE - 9
THE STRATEGIC FINANCIAL ADVICE COMPANY LLP
- 2006-12-07 OC30345121-27 Lamb's Conduit Street, LondonActive Corporate (2 parents, 4 offsprings)Officer2002-11-27 ~ nowIIF 33 - LLP Designated Member → MEPerson with significant control2016-04-06 ~ nowIIF 46 - Ownership of voting rights - 75% or more → OEIIF 46 - Right to surplus assets - 75% or more → OE - 10
BUZZ (HOLDINGS) LLP
OC3805354th Floor, Reading Bridge House George Street, Reading, BerkshireDissolved Corporate (7 parents)Officer2012-11-27 ~ dissolvedIIF 31 - LLP Designated Member → ME - 11
CELTIC PHARMA DEVELOPMENT SERVICES EUROPE LIMITED
055772284th Floor Reading Bridge House, George Street, Reading, Berkshire, EnglandDissolved Corporate (7 parents)Officer2005-10-11 ~ dissolvedIIF 19 - Director → ME - 12
CELTIC PHARMA DEVELOPMENT UK PLC
05481475First Floor, 1 East Poultry Avenue, LondonDissolved Corporate (3 parents)Officer2005-06-15 ~ dissolvedIIF 15 - Director → ME2005-06-15 ~ dissolvedIIF 44 - Secretary → ME - 1321-27 Lambs Conduit Street, London, EnglandActive Corporate (21 parents)Officer2023-01-01 ~ 2024-03-31IIF 34 - LLP Designated Member → ME
- 14
CELTIC PHARMA MANAGEMENT SERVICES EUROPE LIMITED
055772254th Floor Reading Bridge House, George Street, Reading, Berkshire, EnglandDissolved Corporate (5 parents)Officer2005-10-11 ~ dissolvedIIF 18 - Director → ME - 15
CUMBERLAND INITIATIVE LIMITED
098150172 Toomers Wharf, Canal Walk, Newbury, Berkshire, EnglandDissolved Corporate (8 parents)Officer2018-12-14 ~ 2023-10-18IIF 21 - Director → ME - 16EVER 1484 LIMITED - 2001-06-12Pem Salisbury House, Station Road, CambridgeDissolved Corporate (17 parents)Officer2005-08-31 ~ 2006-07-28IIF 20 - Director → ME
- 17HOTPOINT 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 (61 parents, 6 offsprings)Officer1997-10-22 ~ 2001-04-09IIF 27 - Director → ME
- 18
S. A. INVESTORS LIMITED
- 2018-09-07 0428867221-27 Lamb's Conduit Street, LondonActive Corporate (7 parents, 1 offspring)Officer2001-09-17 ~ nowIIF 4 - Director → MEPerson with significant control2016-04-06 ~ 2020-11-24IIF 45 - Ownership of shares – More than 25% but not more than 50% → OEIIF 45 - Ownership of voting rights - More than 25% but not more than 50% → OE - 19
HJM PROPERTIES LTD
1250289420-22 Wenlock Road, London, EnglandActive Corporate (2 parents)Officer2020-03-06 ~ nowIIF 37 - Director → MEPerson with significant control2020-03-06 ~ nowIIF 48 - Has significant influence or control → OE - 20IMPKEMIX (NO.5) LIMITED - 1978-12-31Deloitte Llp, Po Box 500 2 Hardman Street, ManchesterDissolved Corporate (29 parents)Officer1993-01-14 ~ 1997-09-16IIF 28 - Director → ME
- 21
KKCJ LTD
081786054th Floor, Reading Bridge House George Street, Reading, BerkshireDissolved Corporate (2 parents)Officer2012-08-14 ~ 2016-04-01IIF 40 - Director → ME - 22
LONDON INVESTORS LLP
OC3769244th Floor, Reading Bridge House George Street, Reading, BerkshireDissolved Corporate (2 parents)Officer2012-07-13 ~ dissolvedIIF 32 - LLP Designated Member → ME - 23M (2003) PLC - now
MARCONI PLC
- 2003-10-21 038464298 Salisbury Square, LondonDissolved Corporate (26 parents)Officer1999-10-04 ~ 2001-07-06IIF 9 - Director → ME - 24M (DGP2) LIMITED - nowSERTICA LIMITED - 1998-05-20Point 3 Haywood Road, WarwickDissolved Corporate (14 parents)Officer1998-06-05 ~ 2001-07-06IIF 10 - Director → ME
- 25ISSUEBONUS LIMITED - 1990-09-24St. James' Park, Newcastle Upon TyneActive Corporate (37 parents, 22 offsprings)Officer1997-02-27 ~ 1998-05-27IIF 12 - Director → ME
- 26
OPTIBIO LIMITED
10782195Suite 10 25- 27 Heath Street, Hampstead, London, EnglandDissolved Corporate (2 parents)Officer2017-05-22 ~ dissolvedIIF 38 - Director → MEPerson with significant control2017-05-22 ~ dissolvedIIF 50 - Ownership of voting rights - More than 25% but not more than 50% as a member of a firm → OEIIF 50 - Ownership of shares – More than 25% but not more than 50% as a member of a firm → OE - 27PENTLAND 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 7 - Director → ME
- 28
PRO BONO BIO ENTREPRENEUR LIMITED
07805302C/o Alixpartners Uk Llp 6, New Street Square, LondonActive Corporate (8 parents)Officer2011-10-11 ~ 2017-05-29IIF 3 - Director → ME - 29
PRO BONO BIO GROUP PLC
078025774th Floor Phoenix House, 1 Station Hill, Reading, Berkshire, United KingdomLiquidation Corporate (10 parents, 1 offspring)Officer2011-10-07 ~ 2017-05-29IIF 5 - Director → ME - 30R&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 - 31
MEGHI LTD
- 2017-09-14 1037599821-27 Lambs Conduit Street, London, EnglandDissolved Corporate (3 parents)Officer2016-09-14 ~ dissolvedIIF 43 - Director → MEPerson with significant control2016-09-14 ~ dissolvedIIF 49 - Right to appoint or remove directors → OEIIF 49 - Ownership of voting rights - 75% or more → OEIIF 49 - Ownership of shares – 75% or more → OE - 32S.G. SECURITIES U.K. LIMITED - now
S.G.WARBURG & CO.LIMITED
- 2003-06-06 002926895 Broadgate, London, United KingdomActive Corporate (214 parents)Officer~ 1992-09-25IIF 30 - Director → ME - 33
SPM PROPERTIES LTD
1250288820-22 Wenlock Road, London, EnglandActive Corporate (2 parents)Officer2020-03-06 ~ nowIIF 36 - Director → MEPerson with significant control2020-03-06 ~ nowIIF 47 - Has significant influence or control → OE - 34SYNGENTA LIMITED - now
ZENECA LIMITED
- 2000-11-21 02710846Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, United KingdomActive Corporate (46 parents)Officer~ 1997-10-01IIF 22 - Director → ME - 35
TREATMENTS DIRECT LIMITED
- 2015-05-19 06986552BEEHIVE GOLD LIMITED
- 2014-05-21 06986552HWD PRECIOUS METALS LTD - 2013-06-12SILLAH & ASSOCIATES LIMITED - 2010-01-3021-27 Lambs Conduit Street, London, EnglandDissolved Corporate (6 parents)Officer2013-06-13 ~ dissolvedIIF 8 - Director → ME - 36TELENT 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 (78 parents, 6 offsprings)Officer1997-11-07 ~ 1998-08-17IIF 23 - Director → ME - 37TUSK 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 - 1983-05-13INTERNATIONAL AUTOMATIC TELEPHONE AND ELECTRIC CO. LIMITED (THE) - 1978-12-31PLESSEY APPLIED MICROELECTRONICS LIMITED - 1978-12-314th Floor, 95 Gresham Street, London, EnglandActive Corporate (36 parents, 1 offspring)Officer1997-11-07 ~ 1998-08-17IIF 25 - Director → ME - 38TUSK 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 26 - Director → ME - 39
VINTAGE ENTERTAINMENT LIMITED
0716829688 Wood Street, LondonDissolved Corporate (12 parents, 2 offsprings)Officer2016-11-02 ~ dissolvedIIF 16 - Director → ME - 40
XENOVA GROUP PLC
- 2005-09-01 02698673TRUSHELFCO (NO.1796) LIMITED - 1992-05-22First Floor, 1 East Poultry Avenue, LondonDissolved Corporate (35 parents)Officer2005-08-31 ~ dissolvedIIF 14 - Director → ME - 41INGENUM LIMITED - 1986-10-24TWENTY-SIXTH SHELF INVESTMENT COMPANY LIMITED - 1986-02-28First Floor, 1 East Poultry Avenue, LondonDissolved Corporate (29 parents)Officer2005-09-01 ~ dissolvedIIF 13 - Director → ME
- 42
XENOVA OX - 400 LIMITED
064269264th Floor Reading Bridge House, George Street, Reading, Berkshire, EnglandDissolved Corporate (5 parents)Officer2007-11-15 ~ dissolvedIIF 42 - Director → ME
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Contains public sector information retrieved at 22 March 2026 and
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