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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.

Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Bertram, Joanna

    Related profiles found in government register
  • Bertram, Joanna
    British born in October 1981

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Bertram, Joanna
    British telecommunications born in October 1981

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 500, Brook Drive, Reading, RG2 6UU, United Kingdom

      IIF 24 IIF 25
  • Bertram, Joanna
    British regional general manager born in October 1981

    Resident in England

    Registered addresses and corresponding companies
    • Aldgate Tower - First Floor, 2 Leman Street, London, E1 8FA, United Kingdom

      IIF 26
  • Bertram, Joanna Mary Ricardo
    British chief digital & strategy officer born in October 1981

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 260, Bath Road, Slough, Berkshire, SL1 4DX, England

      IIF 27 IIF 28
child relation
Offspring entities and appointments 28
  • 1
    ALTERNATIVE NETWORKS LIMITED
    - now 03571046 04442332, 02888250, 04932571
    FAULTBASIC LIMITED - 2022-10-06
    FREEDOM4 GROUP LIMITED - 2008-07-08
    FAULTBASIC LIMITED - 2008-05-29
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (30 parents)
    Officer
    2025-10-31 ~ now
    IIF 23 - Director → ME
  • 2
    COMMUNICATE BETTER HOLDINGS LIMITED
    06538108
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (11 parents, 8 offsprings)
    Equity (Company account)
    2,849,541 GBP2024-03-31
    Officer
    2025-10-31 ~ now
    IIF 5 - Director → ME
  • 3
    COMMUNICATE BETTER LIMITED
    04743770
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (15 parents)
    Equity (Company account)
    4,887,797 GBP2024-03-31
    Officer
    2025-10-31 ~ now
    IIF 13 - Director → ME
  • 4
    DAISY BIDCO LIMITED
    13835168 09203980, 12984119
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (10 parents, 1 offspring)
    Officer
    2025-10-31 ~ now
    IIF 17 - Director → ME
  • 5
    DAISY COMMUNICATIONS HOLDINGS LIMITED
    - now 11698468
    DAISY HOLDCO D LIMITED - 2019-05-31
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (10 parents, 6 offsprings)
    Officer
    2025-10-31 ~ now
    IIF 6 - Director → ME
  • 6
    DAISY CORPORATE SERVICES LIMITED
    - now 08205265 14939062, 15532524, 04166889
    DAISY DATA CENTRE SOLUTIONS LIMITED - 2024-07-11
    STAR AIR MEDIA LIMITED - 2013-02-14
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (16 parents)
    Officer
    2025-10-31 ~ now
    IIF 18 - Director → ME
  • 7
    DAISY FINCO LIMITED
    - now 09203989
    CHAIN FINCO LIMITED - 2015-02-13
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (17 parents, 1 offspring)
    Officer
    2025-10-31 ~ now
    IIF 8 - Director → ME
  • 8
    DAISY GROUP LIMITED
    - now 09203980 03974683, 06948160
    DAISY GROUP PLC - 2018-07-11
    DAISY BIDCO PLC - 2016-09-22
    CHAIN BIDCO PLC - 2015-02-13
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (19 parents, 2 offsprings)
    Officer
    2025-10-31 ~ now
    IIF 19 - Director → ME
  • 9
    DAISY LOCAL BUSINESS LIMITED
    - now 09127507 06776769
    BUSINESS 2014 LIMITED - 2014-08-05
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (15 parents)
    Officer
    2025-10-31 ~ now
    IIF 15 - Director → ME
  • 10
    DAISY MIDCO LIMITED
    - now 09265705
    CHAIN MIDCO LIMITED - 2015-02-13
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (16 parents, 4 offsprings)
    Officer
    2025-10-31 ~ now
    IIF 12 - Director → ME
  • 11
    DAISY TELECOMS LIMITED
    - now 03561536 06977942, 04808553
    DAISY TELECOMS 1 LIMITED - 2024-08-20
    DAISY WIFI LIMITED - 2023-12-19
    LAYER 3 ADVANCED BUSINESS SOLUTIONS LTD - 2015-04-01
    LAYER 3 CONSULTING LIMITED - 2007-02-26
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (20 parents)
    Officer
    2025-10-31 ~ now
    IIF 20 - Director → ME
  • 12
    J SAINSBURY PLC
    00185647
    33 Charterhouse Street, London, England
    Active Corporate (67 parents, 48 offsprings)
    Equity (Company account)
    0 GBP2025-03-01
    Officer
    2022-07-07 ~ now
    IIF 1 - Director → ME
  • 13
    MXLG ACQUISITIONS LIMITED
    11065145
    The Walbrook Building, 25 Walbrook, London, England
    Active Corporate (13 parents, 2 offsprings)
    Officer
    2021-09-13 ~ 2025-07-23
    IIF 24 - Director → ME
  • 14
    MXLG INTERMEDIATE HOLDINGS LIMITED
    11191061
    The Walbrook Building, 25 Walbrook, London, England
    Active Corporate (10 parents, 5 offsprings)
    Officer
    2021-09-13 ~ 2025-07-23
    IIF 25 - Director → ME
  • 15
    ONEBILLTELECOM LIMITED
    04037897
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (21 parents)
    Officer
    2025-10-31 ~ now
    IIF 11 - Director → ME
  • 16
    PREMIER CHOICE COMMUNICATIONS LIMITED
    - now 06769735
    THE NET CROWD LIMITED - 2023-12-21
    AVEO NET LIMITED - 2009-02-12
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (14 parents)
    Officer
    2025-10-31 ~ now
    IIF 21 - Director → ME
  • 17
    SPIRITEL MOBILE LIMITED
    - now 04232789 05553515
    WN 1 LIMITED - 2008-06-04
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (25 parents)
    Officer
    2025-10-31 ~ now
    IIF 16 - Director → ME
  • 18
    STATIQ LIMITED
    - now 08702435
    HOUSEHOLDIQ LIMITED - 2014-07-09
    500 Brook Drive, Reading, United Kingdom
    Active Corporate (15 parents)
    Total Assets Less Current Liabilities (Company account)
    346,225 GBP2015-12-31
    Officer
    2019-04-30 ~ 2022-05-16
    IIF 28 - Director → ME
  • 19
    UBER NIR LIMITED
    09783280
    Floors 13-15, Aldgate Tower 2 Leman Street, London, England
    Active Corporate (10 parents)
    Officer
    2015-11-06 ~ 2017-12-15
    IIF 26 - Director → ME
  • 20
    VIRGIN MEDIA BUSINESS LIMITED
    - now 01785381 05993968
    IMMINUS LIMITED - 2010-02-11
    MIDLAND NETWORK SERVICES LIMITED - 1994-02-28
    TRAVINET LIMITED - 1989-01-01
    PLANEPEAK LIMITED - 1984-03-07
    500 Brook Drive, Reading, United Kingdom
    Active Corporate (52 parents, 1 offspring)
    Officer
    2025-08-01 ~ now
    IIF 3 - Director → ME
  • 21
    500 Brook Drive, Reading, United Kingdom
    Active Corporate (9 parents)
    Officer
    2025-08-01 ~ now
    IIF 2 - Director → ME
  • 22
    500 Brook Drive, Reading, United Kingdom
    Active Corporate (9 parents)
    Officer
    2025-08-01 ~ now
    IIF 4 - Director → ME
  • 23
    VOICE MOBILE LIMITED
    - now 04112330
    VOICEDAT LIMITED - 2010-01-02
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (19 parents)
    Officer
    2025-10-31 ~ now
    IIF 7 - Director → ME
  • 24
    WEVE LIMITED
    - now 08178832 07999361
    OVAL (2256) LIMITED - 2012-10-26
    500 Brook Drive, Reading, United Kingdom
    Active Corporate (23 parents)
    Officer
    2018-08-29 ~ 2022-05-10
    IIF 27 - Director → ME
  • 25
    XLN ENERGY LIMITED
    - now 09200327
    HAMSARD 3348 LIMITED - 2014-11-18
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (15 parents)
    Officer
    2025-08-01 ~ now
    IIF 10 - Director → ME
  • 26
    XLN LIMITED
    - now 09091934 06408647
    ASTON BIDCO LIMITED - 2023-06-12
    HAMSARD 3343 LIMITED - 2014-09-09
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (16 parents, 5 offsprings)
    Officer
    2025-10-31 ~ now
    IIF 14 - Director → ME
  • 27
    XLN PAY LIMITED
    - now 06436327
    XLN CARD PROCESSING SOLUTIONS LIMITED - 2018-09-13
    CARD PROCESSING SOLUTIONS LIMITED - 2011-07-22
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (14 parents, 6 offsprings)
    Officer
    2025-10-31 ~ now
    IIF 9 - Director → ME
  • 28
    XLN TELECOM LTD.
    - now 03902543
    MUTUALENTERPRISE LIMITED - 2003-10-14
    NEVRUS (830) LIMITED - 2000-04-10
    500 Brook Drive, Reading, United Kingdom, United Kingdom
    Active Corporate (24 parents)
    Officer
    2025-10-31 ~ now
    IIF 22 - Director → ME

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Contains public sector information retrieved at 9 February 2026 and licensed under the Open Government Licence v3.0.