The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers are those entities, including individual and legal persons, have significant controls over the company in focus. The offspring entities and appointments are those entities that the company 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.

Parent entities and officers
Active 3
  • 1
    Swainbank, Terence
    Investment Manager born in October 1949
    Individual (4 offsprings)
    Officer
    2012-09-14 ~ dissolved
    OF - Director → CIF 0
  • 2
    Buckley Golder, Ian Mark, Dr
    Director born in October 1951
    Individual (4 offsprings)
    Officer
    2006-06-13 ~ dissolved
    OF - Director → CIF 0
  • 3
    De Silva, Dinali Sharmalee, Dr
    Investment Manager born in May 1974
    Individual (2 offsprings)
    Officer
    2011-02-22 ~ dissolved
    OF - Director → CIF 0
Ceased 16
  • 1
    Mclean, John Anderson, Dr
    Associate Director Cclrc born in October 1953
    Individual
    Officer
    2001-10-10 ~ 2005-10-26
    OF - Director → CIF 0
  • 2
    Feely, Carol Patricia
    Individual
    Officer
    1998-12-08 ~ 2005-04-04
    OF - Secretary → CIF 0
  • 3
    Carnochan, Paul, Dr
    Business Development Manager born in June 1955
    Individual (1 offspring)
    Officer
    2004-03-12 ~ 2006-06-13
    OF - Director → CIF 0
  • 4
    Bright, Susan Margaret, Dr
    Manager born in June 1950
    Individual
    Officer
    2001-06-19 ~ 2004-03-12
    OF - Director → CIF 0
  • 5
    Jones, David Leonard
    Consultant
    Individual
    Officer
    2005-04-04 ~ 2005-09-30
    OF - Secretary → CIF 0
  • 6
    Adams, Fredrik Ninian John
    Investor born in April 1970
    Individual (5 offsprings)
    Officer
    2005-09-13 ~ 2008-11-28
    OF - Director → CIF 0
  • 7
    Heinrich, John Patrick, Dr
    Executive born in March 1947
    Individual (1 offspring)
    Officer
    2005-12-05 ~ 2008-07-04
    OF - Director → CIF 0
  • 8
    Nairn, Michael
    Business Executive born in May 1957
    Individual (7 offsprings)
    Officer
    2001-10-10 ~ 2005-01-14
    OF - Director → CIF 0
  • 9
    Froud, Keith
    Solicitor born in September 1970
    Individual (9 offsprings)
    Officer
    1998-05-14 ~ 1998-12-08
    OF - Director → CIF 0
  • 10
    Swainbank, Terence
    Director born in October 1949
    Individual (4 offsprings)
    Officer
    2007-03-12 ~ 2011-02-22
    OF - Director → CIF 0
  • 11
    Sumner, Nicola Hayley
    Legal Executive born in November 1969
    Individual
    Officer
    1998-05-14 ~ 1998-12-08
    OF - Director → CIF 0
    Sumner, Nicola Hayley
    Legal Executive
    Individual
    Officer
    1998-05-14 ~ 1998-12-08
    OF - Secretary → CIF 0
  • 12
    Rowland, Clive Gary
    Managing Director born in January 1954
    Individual (6 offsprings)
    Officer
    1998-12-08 ~ 2005-09-14
    OF - Director → CIF 0
  • 13
    Trigg, Nicholas Peter
    Engineer born in October 1958
    Individual (7 offsprings)
    Officer
    2006-04-24 ~ 2012-09-14
    OF - Director → CIF 0
  • 14
    Stockton, Martin
    Individual (3 offsprings)
    Officer
    2005-12-09 ~ 2009-07-30
    OF - Secretary → CIF 0
  • 15
    12 York Place, Leeds, West Yorkshire
    Dissolved Corporate (4 parents, 36 offsprings)
    Equity (Company account)
    2 GBP2022-01-31
    Officer
    1998-05-14 ~ 1998-05-14
    PE - Nominee Director → CIF 0
  • 16
    12 York Place, Leeds, West Yorkshire
    Dissolved Corporate (4 parents, 51 offsprings)
    Equity (Company account)
    2 GBP2022-01-31
    Officer
    1998-05-14 ~ 1998-05-14
    PE - Nominee Secretary → CIF 0
parent relation
Company in focus

PETRRA LIMITED

Previous names
PROCESS KNOWLEDGE HOLDINGS LIMITED - 1998-12-15
VERTICALACT LIMITED - 1998-06-22
Standard Industrial Classification
26600 - Manufacture Of Irradiation, Electromedical And Electrotherapeutic Equipment

  • PETRRA LIMITED
    Info
    PROCESS KNOWLEDGE HOLDINGS LIMITED - 1998-12-15
    VERTICALACT LIMITED - 1998-06-22
    Registered number 03563949
    264 Banbury Road, Oxford OX2 7DY
    Private Limited Company incorporated on 1998-05-14 and dissolved on 2017-02-16 (18 years 9 months). The company status is Dissolved.
    CIF 0
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.
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Contains public sector information retrieved at 24 April 2025 and licensed under the Open Government Licence v3.0.