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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

Yarr, Jonathan

    Related profiles found in government register
  • Yarr, Jonathan
    Northern Irish born in January 1980

    Resident in England

    Registered addresses and corresponding companies
  • Yarr, Jonathan
    Northern Irish executive director born in January 1980

    Resident in England

    Registered addresses and corresponding companies
    • Unit 1, Axis Park, Orchardton Road, Cumbernauld, Glasgow, G68 9LB, Scotland

      IIF 25 IIF 26 IIF 27
    • Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2ST, England

      IIF 28
child relation
Offspring entities and appointments
Active 21
  • 1
    38 Craigweil Avenue, Radlett, Hertfordshire
    Active Corporate (2 parents)
    Equity (Company account)
    4 GBP2024-12-31
    Officer
    2023-12-18 ~ now
    IIF 1 - Director → ME
  • 2
    M GROUP SERVICES PLANT & FLEET SOLUTIONS LIMITED - 2025-04-01
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (10 parents)
    Officer
    2023-06-26 ~ now
    IIF 7 - Director → ME
  • 3
    M GROUP SERVICES LIMITED - 2025-04-01
    THOR BIDCO LIMITED - 2017-06-01
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire
    Active Corporate (8 parents, 29 offsprings)
    Officer
    2023-03-07 ~ now
    IIF 4 - Director → ME
  • 4
    CALLISTO DATA LIMITED - 2025-04-01
    MDS DATA MANAGEMENT LIMITED - 2020-04-20
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (10 parents)
    Officer
    2023-06-26 ~ now
    IIF 15 - Director → ME
  • 5
    MORRISON DATA SERVICES LIMITED - 2025-04-01
    G4S UTILITY AND OUTSOURCING SERVICES (UK) LIMITED - 2017-01-23
    G4S UTILITY SERVICES (UK) LIMITED - 2011-09-06
    ACCUREAD LIMITED - 2009-03-23
    THE METERING READING AGENCY LIMITED - 1996-07-31
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (10 parents, 2 offsprings)
    Officer
    2023-06-26 ~ now
    IIF 6 - Director → ME
  • 6
    MORRISON ENERGY SERVICES (TRANSMISSION NETWORKS) LIMITED - 2025-04-01
    BABCOCK NETWORKS LIMITED - 2021-12-24
    EVE GROUP LIMITED - 2006-10-02
    EVE GROUP LIMITED - 2006-09-28
    BABCOCK NETWORKS LIMITED - 2006-09-28
    CERTAS PLC - 2004-09-17
    CERTAS LIMITED - 2002-10-07
    CERTAS PLC - 2002-10-03
    EVE GROUP PLC - 2002-01-02
    EVE CONSTRUCTION PLC - 1988-04-02
    J.L.EVE CONSTRUCTION COMPANY LIMITED - 1981-12-31
    Abel Smith House, Gunnels Wood Road, Stevenage, United Kingdom
    Active Corporate (10 parents, 13 offsprings)
    Officer
    2023-06-26 ~ now
    IIF 24 - Director → ME
  • 7
    MGS ENERGY LIMITED - 2025-04-01
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, United Kingdom
    Active Corporate (10 parents, 6 offsprings)
    Officer
    2023-08-01 ~ now
    IIF 18 - Director → ME
  • 8
    MILESTONE INFRASTRUCTURE LIMITED - 2025-04-01
    TWENTY BIDCO LIMITED - 2020-11-27
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, United Kingdom
    Active Corporate (10 parents)
    Officer
    2023-06-26 ~ now
    IIF 17 - Director → ME
  • 9
    MORRISON TELECOM SERVICES LIMITED - 2025-04-01
    MORRISON UTILITY PLANT SERVICES LIMITED - 2018-10-16
    M GROUP SERVICES LIMITED - 2017-06-01
    MORRISON UTILITY PLANT SERVICES LIMITED - 2016-12-09
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire
    Active Corporate (11 parents)
    Officer
    2023-06-26 ~ now
    IIF 3 - Director → ME
  • 10
    WALDON TELECOM LIMITED - 2025-04-01
    WALDON DEVELOPMENTS LIMITED - 2000-10-16
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (11 parents)
    Equity (Company account)
    2,051,420 GBP2020-12-31
    Officer
    2023-06-26 ~ now
    IIF 10 - Director → ME
  • 11
    MAGDALENE LIMITED - 2025-04-01
    MAGDALENE TELECOM LIMITED - 2006-04-03
    MAGDALENE TECHNOLOGY LIMITED - 1999-04-08
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (11 parents, 1 offspring)
    Officer
    2023-06-26 ~ now
    IIF 14 - Director → ME
  • 12
    M GROUP TELECOMS LIMITED - 2025-04-01
    MAGDALENE HOLDINGS LIMITED - 2019-01-23
    GRIFFIN SOLUTIONS LIMITED - 2005-06-07
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (10 parents, 6 offsprings)
    Officer
    2023-08-01 ~ now
    IIF 12 - Director → ME
  • 13
    AVONLINE NETWORK SERVICES LIMITED - 2025-04-01
    Abel Smith House, Gunnels Wood Road, Stevenage, England
    Active Corporate (11 parents)
    Officer
    2023-06-26 ~ now
    IIF 23 - Director → ME
  • 14
    KH ENGINEERING SERVICES LTD - 2025-04-01
    Abel Smith House, Gunnels Wood Road, Stevenage, England
    Active Corporate (10 parents)
    Officer
    2023-06-26 ~ now
    IIF 22 - Director → ME
  • 15
    DYER AND BUTLER LIMITED - 2025-04-01
    STONEBOOK LIMITED - 1979-12-31
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (10 parents)
    Officer
    2023-06-26 ~ now
    IIF 11 - Director → ME
  • 16
    DYER & BUTLER HOLDINGS LIMITED - 2019-05-24
    POSTLAW LIMITED - 2003-10-30
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (10 parents, 7 offsprings)
    Officer
    2023-08-01 ~ now
    IIF 9 - Director → ME
  • 17
    Z-TECH CONTROL SYSTEMS LIMITED - 2025-04-01
    Z-TECH DYNO SERVICES LIMITED - 2001-09-27
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, United Kingdom
    Active Corporate (10 parents)
    Officer
    2023-06-26 ~ now
    IIF 19 - Director → ME
  • 18
    PLANNED MAINTENANCE (PENNINE) LIMITED - 2025-04-01
    EWERCHERT LIMITED - 1983-07-04
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, United Kingdom
    Active Corporate (10 parents)
    Officer
    2023-06-26 ~ now
    IIF 20 - Director → ME
  • 19
    MORRISON WATER SERVICES LIMITED - 2025-04-01
    MORRISON UTILITY SERVICES LIMITED - 2021-04-03
    AWG UTILITY SERVICES LIMITED - 2004-10-13
    AWG SHELF 4 LIMITED - 2003-04-01
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire
    Active Corporate (11 parents, 1 offspring)
    Officer
    2023-06-26 ~ now
    IIF 2 - Director → ME
  • 20
    MGS WATER LIMITED - 2025-04-01
    M GROUP UTILITIES LIMITED - 2022-05-27
    MORRISON UTILITY SERVICES HOLDINGS LIMITED - 2019-07-05
    BROOMCO (4135) LIMITED - 2008-06-27
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire
    Active Corporate (11 parents, 6 offsprings)
    Officer
    2023-08-01 ~ now
    IIF 5 - Director → ME
  • 21
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, United Kingdom
    Active Corporate (10 parents)
    Officer
    2023-06-26 ~ now
    IIF 16 - Director → ME
Ceased 7
  • 1
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, United Kingdom
    Active Corporate (9 parents, 1 offspring)
    Officer
    2023-11-27 ~ 2023-12-22
    IIF 21 - Director → ME
  • 2
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (5 parents)
    Equity (Company account)
    2,972,266 GBP2019-03-31
    Officer
    2023-06-26 ~ 2025-12-31
    IIF 8 - Director → ME
  • 3
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Dissolved Corporate (5 parents)
    Officer
    2023-08-01 ~ 2024-11-01
    IIF 28 - Director → ME
  • 4
    Unit 1, Axis Park Orchardton Road, Cumbernauld, Glasgow, Scotland
    Active Corporate (5 parents)
    Equity (Company account)
    -148,424 GBP2020-03-31
    Officer
    2023-08-01 ~ 2024-12-18
    IIF 25 - Director → ME
  • 5
    Unit 1, Axis Park Orchardton Road, Cumbernauld, Glasgow, Scotland
    Active Corporate (5 parents, 1 offspring)
    Officer
    2023-08-01 ~ 2024-12-18
    IIF 27 - Director → ME
  • 6
    ID SYSTEMS UK LIMITED - 2025-04-01
    Unit 1, Axis Park Orchardton Road, Cumbernauld, Glasgow, Scotland
    Active Corporate (5 parents, 3 offsprings)
    Officer
    2023-06-26 ~ 2025-09-01
    IIF 26 - Director → ME
  • 7
    G4S LOCKS & ALARMS (UK) LIMITED - 2017-01-23
    DYNO-SECURE LIMITED - 2015-12-18
    DYNO-ROD DEVELOPMENTS LIMITED - 2006-03-22
    CLEANMANE LIMITED - 1980-12-31
    Abel Smith House, Gunnels Wood Road, Stevenage, Hertfordshire, England
    Active Corporate (5 parents)
    Officer
    2023-06-26 ~ 2025-10-29
    IIF 13 - Director → ME

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