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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 17
  • 1
    Hardcastle, Christopher John
    Born in July 1975
    Individual (3 offsprings)
    Officer
    2007-05-21 ~ now
    OF - Director → CIF 0
  • 2
    Niklasson, Johan Arvid
    Director born in June 1978
    Individual (6 offsprings)
    Officer
    2009-11-05 ~ 2011-10-21
    OF - Director → CIF 0
  • 3
    Jenns, Timothy
    Director born in December 1947
    Individual (9 offsprings)
    Officer
    2008-07-15 ~ 2017-07-03
    OF - Director → CIF 0
    Jenns, Timothy
    Individual (9 offsprings)
    Officer
    2011-04-21 ~ 2022-09-30
    OF - Secretary → CIF 0
  • 4
    Jenns, Adam Thomas
    Born in February 1975
    Individual (7 offsprings)
    Officer
    1998-07-14 ~ now
    OF - Director → CIF 0
    Jenns, Adam Thomas
    Individual (7 offsprings)
    Officer
    2000-03-31 ~ 2011-04-21
    OF - Secretary → CIF 0
    Mr Adam Thomas Jenns
    Born in February 1975
    Individual (7 offsprings)
    Person with significant control
    2016-04-06 ~ 2016-10-10
    PE - Ownership of shares – 75% or moreCIF 0
  • 5
    Lawlor Davidson, Fraser David
    Head Of Motion Graphics born in May 1982
    Individual (1 offspring)
    Officer
    2010-09-01 ~ 2010-12-31
    OF - Director → CIF 0
  • 6
    Yeo, Jonathan Philip
    Creative Director born in March 1970
    Individual (2 offsprings)
    Officer
    2013-03-01 ~ 2014-07-09
    OF - Director → CIF 0
  • 7
    Rowe, William Thomas
    Designer born in December 1973
    Individual (19 offsprings)
    Officer
    2000-09-25 ~ 2002-07-24
    OF - Director → CIF 0
  • 8
    Moresby, Marcus
    Graphic Designer born in September 1978
    Individual (2 offsprings)
    Officer
    2004-06-16 ~ 2010-06-18
    OF - Director → CIF 0
  • 9
    Nation, Merlin
    Creative Director born in March 1973
    Individual (5 offsprings)
    Officer
    2010-09-01 ~ 2011-11-30
    OF - Director → CIF 0
  • 10
    Freeman, Nicholas
    Designer born in December 1977
    Individual (1 offspring)
    Officer
    2002-02-04 ~ 2004-02-17
    OF - Director → CIF 0
  • 11
    Fearnside, Joel James
    Born in May 1987
    Individual (2 offsprings)
    Officer
    2021-06-17 ~ now
    OF - Director → CIF 0
  • 12
    Walker, Lee Michael
    Born in April 1978
    Individual (1 offspring)
    Officer
    2010-09-01 ~ now
    OF - Director → CIF 0
  • 13
    Chapple-canty, William
    Art Director born in October 1981
    Individual (1 offspring)
    Officer
    2013-03-01 ~ 2016-02-26
    OF - Director → CIF 0
  • 14
    Blackfriar Directors Limited
    Individual (338 offsprings)
    Officer
    1998-07-14 ~ 1998-07-14
    OF - Nominee Director → CIF 0
  • 15
    Blackfriar Secretaries Limited
    Individual (337 offsprings)
    Officer
    1998-07-14 ~ 1998-07-14
    OF - Nominee Secretary → CIF 0
  • 16
    Fenwick, Richard Edward
    Individual (1 offspring)
    Officer
    1998-07-14 ~ 2000-03-31
    OF - Secretary → CIF 0
  • 17
    ATJ LIMITED
    06604890
    Studio 10, The Piano Factory, 117 Farringdon Road, London, United Kingdom
    Active Corporate (2 parents, 2 offsprings)
    Person with significant control
    2016-10-10 ~ now
    PE - Ownership of shares – 75% or moreCIF 0
parent relation
Company in focus

MAINFRAME LIMITED

Period: 2000-06-01 ~ now
Company number: 03597627
Registered names
MAINFRAME LIMITED - now
OS2 LIMITED - 2000-06-01
Standard Industrial Classification
59111 - Motion Picture Production Activities
Brief company account
Property, Plant & Equipment
8,700 GBP2025-06-30
10,797 GBP2024-06-30
Debtors
168,142 GBP2025-06-30
157,294 GBP2024-06-30
Cash at bank and in hand
569 GBP2025-06-30
2,339 GBP2024-06-30
Current Assets
168,711 GBP2025-06-30
159,633 GBP2024-06-30
Creditors
Current
166,752 GBP2025-06-30
66,202 GBP2024-06-30
Net Current Assets/Liabilities
1,959 GBP2025-06-30
93,431 GBP2024-06-30
Total Assets Less Current Liabilities
10,659 GBP2025-06-30
104,228 GBP2024-06-30
Creditors
Non-current
10,000 GBP2024-06-30
Net Assets/Liabilities
10,659 GBP2025-06-30
94,228 GBP2024-06-30
Equity
Called up share capital
140 GBP2025-06-30
140 GBP2024-06-30
Retained earnings (accumulated losses)
10,519 GBP2025-06-30
94,088 GBP2024-06-30
Equity
10,659 GBP2025-06-30
94,228 GBP2024-06-30
Average Number of Employees
82024-07-01 ~ 2025-06-30
82023-07-01 ~ 2024-06-30
Property, Plant & Equipment - Gross Cost
Improvements to leasehold property
34,792 GBP2025-06-30
34,792 GBP2024-06-30
Plant and equipment
51,798 GBP2025-06-30
51,798 GBP2024-06-30
Furniture and fittings
26,498 GBP2025-06-30
26,498 GBP2024-06-30
Computers
437,409 GBP2025-06-30
436,410 GBP2024-06-30
Property, Plant & Equipment - Gross Cost
550,497 GBP2025-06-30
549,498 GBP2024-06-30
Property, Plant & Equipment - Accumulated Depreciation & Impairment
Improvements to leasehold property
34,792 GBP2025-06-30
34,792 GBP2024-06-30
Plant and equipment
51,733 GBP2025-06-30
51,721 GBP2024-06-30
Furniture and fittings
26,029 GBP2025-06-30
25,946 GBP2024-06-30
Computers
429,243 GBP2025-06-30
426,242 GBP2024-06-30
Property, Plant & Equipment - Accumulated Depreciation & Impairment
541,797 GBP2025-06-30
538,701 GBP2024-06-30
Property, Plant & Equipment - Increase From Depreciation Charge for Year
Plant and equipment
12 GBP2024-07-01 ~ 2025-06-30
Furniture and fittings
83 GBP2024-07-01 ~ 2025-06-30
Computers
3,001 GBP2024-07-01 ~ 2025-06-30
Property, Plant & Equipment - Increase From Depreciation Charge for Year
3,096 GBP2024-07-01 ~ 2025-06-30
Property, Plant & Equipment
Plant and equipment
65 GBP2025-06-30
77 GBP2024-06-30
Furniture and fittings
469 GBP2025-06-30
552 GBP2024-06-30
Computers
8,166 GBP2025-06-30
10,168 GBP2024-06-30
Trade Debtors/Trade Receivables
Current
156,365 GBP2025-06-30
68,620 GBP2024-06-30
Prepayments
Current
11,777 GBP2025-06-30
9,387 GBP2024-06-30
Debtors
Current, Amounts falling due within one year
168,142 GBP2025-06-30
157,294 GBP2024-06-30
Bank Borrowings/Overdrafts
Current
46,095 GBP2025-06-30
13,522 GBP2024-06-30
Trade Creditors/Trade Payables
Current
25,238 GBP2025-06-30
Other Taxation & Social Security Payable
Current
25,024 GBP2025-06-30
15,080 GBP2024-06-30
Accrued Liabilities
Current
5,215 GBP2025-06-30
5,196 GBP2024-06-30

  • MAINFRAME LIMITED
    Info
    OS2 LIMITED - 2000-06-01
    Registered number 03597627
    Studio 10 The Piano Factory, 117 Farringdon Road, London EC1R 3BX
    PRIVATE LIMITED COMPANY incorporated on 1998-07-14 (27 years 10 months). The status of the company number is Active.
    The last date of confirmation statement was made at 2025-07-14
    CIF 0
child relation
Offspring entities and appointments 0
  • Not found in our database.

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Contains public sector information retrieved at 22 April 2026 and licensed under the Open Government Licence v3.0.