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.
Jump to: Company in focus,
Offsprings
Parent entities and officers
4
- 1
Downie, Ian Michael Stuart
Born in January 1949Individual (158 offsprings)Officer2019-12-10 ~ nowOF - Director → CIF 0 - 2
Mr Tewfic Tom Gores
Born in July 1964Individual (68 offsprings)Person with significant control2019-12-10 ~ nowPE - Has significant influence or control → CIF 0 - 3
Kalawski, Eva Monica
Born in May 1955Individual (161 offsprings)Officer2019-12-10 ~ nowOF - Director → CIF 0Kalawski, Eva Monica
Individual (161 offsprings)Officer2019-12-10 ~ nowOF - Secretary → CIF 0 - 4
Sigler, Mary Ann
Born in August 1954Individual (132 offsprings)Officer2019-12-10 ~ nowOF - Director → CIF 0
Company in focus
CASTLE TOP HOLDING LIMITED
Period: 2019-12-10 ~ now
Company number: 12357407
Registered name
CASTLE TOP HOLDING LIMITED - now
Standard Industrial Classification
64209 - Activities Of Other Holding Companies N.e.c.
Related profiles found in government register
- Registered number 12357407
CASTLE TOP HOLDING LIMITED
Info280 Bishopsgate, London EC2M 4AGPRIVATE LIMITED COMPANY incorporated on 2019-12-10 (6 years 4 months). The status of the company number is Active.The last date of confirmation statement was made at 2025-12-09CIF 0 CASTLE TOP HOLDING LIMITED
SRegistered number 12357407100, New Bridge Street, London, England, EC4V 6JALimited in Companies House, United KingdomCIF 1 CIF 2 CIF 3
Offspring entities and appointments
13
- 1
BUZZSUMO LIMITED
088548395 Churchill Place, London, EnglandActive Corporate (18 parents)Person with significant control2021-02-26 ~ nowCIF 12 - Has significant influence or control → OE - 2GTCR CANYON UK INVESTMENTS LTD - 2017-01-20Floor7 (cision Group Limited), 5 Churchill Place, LondonActive Corporate (16 parents, 15 offsprings)Person with significant control2021-01-01 ~ nowCIF 5 - Ownership of shares – 75% or more → OECIF 5 - Ownership of voting rights - 75% or more → OECIF 5 - Right to appoint or remove directors → OE
- 3280 Bishopsgate, London, United KingdomActive Corporate (4 parents, 2 offsprings)Person with significant control2019-12-10 ~ nowCIF 8 - Ownership of voting rights - More than 50% but less than 75% → OECIF 8 - Right to appoint or remove directors → OECIF 8 - Ownership of shares – More than 50% but less than 75% → OE
- 4GORKANA GROUP LIMITED - 2018-09-10DURRANTS LIMITED - 2012-10-12DURRANTS PRESS CUTTINGS LIMITED - 2006-10-17DURRANTS HOLDINGS LIMITED - 1995-04-19DURRANT'S PRESS CUTTINGS LIMITED - 1992-02-125 Churchill Place, Canary Wharf, London, United KingdomActive Corporate (36 parents, 2 offsprings)Person with significant control2021-01-01 ~ nowCIF 1 - Has significant influence or control → OE
- 5
FACTMATA LIMITED
105749555 Churchill Place, London, EnglandActive Corporate (9 parents, 1 offspring)Person with significant control2022-11-16 ~ nowCIF 13 - Has significant influence or control → OE - 6SPECIAL NETWORK SERVICES LIMITED - 2012-09-205 Churchill Place, London, EnglandActive Corporate (28 parents)Person with significant control2021-02-26 ~ nowCIF 10 - Has significant influence or control → OE
- 7DIABOLICAL DUO LIMITED - 2001-06-275 Churchill Place, Canary Wharf, London, United KingdomActive Corporate (24 parents)Person with significant control2021-01-01 ~ nowCIF 3 - Has significant influence or control → OE
- 8TWO-TEN COMMUNICATIONS LIMITED - 1999-06-15PNA HOLDINGS LIMITED - 1991-11-01STAPLEFORCE LIMITED - 1981-12-315 Churchill Place, Canary Wharf, London, United KingdomActive Corporate (54 parents, 1 offspring)Person with significant control2021-01-01 ~ nowCIF 2 - Has significant influence or control → OE
- 9PIMCO 2617 LIMITED - 2007-03-265 Churchill Place, London, EnglandActive Corporate (15 parents)Person with significant control2021-01-01 ~ nowCIF 4 - Has significant influence or control → OE
- 10
PWW ACQUISITION INTERNATIONAL II LTD
099418485 Churchill Place, London, EnglandActive Corporate (13 parents)Person with significant control2020-12-30 ~ nowCIF 7 - Has significant influence or control → OE - 11
PWW INTERNATIONAL LTD
099212145 Churchill Place, London, EnglandActive Corporate (13 parents, 1 offspring)Person with significant control2021-01-01 ~ nowCIF 6 - Has significant influence or control → OE - 12
QRIOUSLY LIMITED
074542085 Churchill Place, London, EnglandActive Corporate (24 parents)Person with significant control2021-02-26 ~ nowCIF 11 - Has significant influence or control → OE - 13
RUNTIME COLLECTIVE LIMITED
03898053Floor 7 (cision Group Limited), 5 Churchill Place, London, EnglandActive Corporate (39 parents, 5 offsprings)Person with significant control2021-02-26 ~ nowCIF 9 - Ownership of voting rights - 75% or more → OECIF 9 - Ownership of shares – 75% or more → OECIF 9 - Right to appoint or remove directors → OE
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Contains public sector information retrieved at 5 April 2026 and
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