logo
explain how to read the page

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

Mason, Michael William

    Related profiles found in government register
  • Mason, Michael William
    British environmental consultant born in October 1964

    Registered addresses and corresponding companies
    • The Little Coach House, Dee Hills Park, Chester, CH3 5AR

      IIF 1
  • Mason, Michael William
    British

    Registered addresses and corresponding companies
    • 5 Aldersey Way, Bunbury, Cheshire, CW6 9GN

      IIF 2 IIF 3
  • Mason, Michael William
    British environmental consultant

    Registered addresses and corresponding companies
    • 5 Aldersey Way, Bunbury, Cheshire, CW6 9GN

      IIF 4
  • Mason, Michael William
    British born in October 1964

    Resident in England

    Registered addresses and corresponding companies
    • 5 Aldersey Way, Bunbury, Cheshire, CW6 9GN

      IIF 5
    • Spring Lodge, 172 Chester Road, Helsby, Cheshire, WA6 0AR, England

      IIF 6 IIF 7
    • 65, Sussex Street, Glasgow, G41 1DX, Scotland

      IIF 8 IIF 9
    • Spring Lodge, 172 Chester Road, Helsby, Cheshire, WA6 0AR

      IIF 10
    • 2, Old Bath Road, Newbury, Berkshire, RG14 1QL, England

      IIF 11
  • Mason, Michael William
    British environmental consultant born in October 1964

    Resident in England

    Registered addresses and corresponding companies
    • 5 Aldersey Way, Bunbury, Cheshire, CW6 9GN

      IIF 12
  • Mr Michael William Mason
    British born in October 1964

    Resident in England

    Registered addresses and corresponding companies
    • 5, Aldersey Way, Bunbury, Tarporley, CW6 9GN, England

      IIF 13
child relation
Offspring entities and appointments
Active 8
  • 1
    2 Old Bath Road, Newbury, Berkshire
    Dissolved Corporate (3 parents)
    Officer
    2001-11-08 ~ dissolved
    IIF 12 - Director → ME
    2002-11-01 ~ dissolved
    IIF 3 - Secretary → ME
  • 2
    RSK ENSR ENVIRONMENT LIMITED - 2007-01-22
    R.S.K. ENVIRONMENT LIMITED - 2003-04-03
    TAMAS LIMITED - 1989-05-18
    65 Sussex Street, Glasgow, Scotland
    Active Corporate (54 parents, 158 offsprings)
    Officer
    1995-05-01 ~ now
    IIF 9 - Director → ME
  • 3
    RSK GROUP PLC - 2018-01-02
    RSK ENSR GROUP PLC - 2007-01-24
    R S K HOLDINGS LIMITED - 2003-01-20
    Spring Lodge, 172 Chester Road, Helsby, Cheshire
    Active Corporate (32 parents, 16 offsprings)
    Officer
    2001-01-26 ~ now
    IIF 10 - Director → ME
  • 4
    10 Bridgewood House, 48 Newforge Lane, Belfast
    Converted / Closed Corporate (6 parents)
    Officer
    2007-12-11 ~ now
    IIF 5 - Director → ME
  • 5
    Spring Lodge 172 Chester Road, Helsby, Cheshire, England
    Active Corporate (7 parents, 1 offspring)
    Net Assets/Liabilities (Company account)
    112,176 GBP2020-03-31
    Officer
    2002-11-19 ~ now
    IIF 6 - Director → ME
  • 6
    Spring Lodge 172 Chester Road, Helsby, Cheshire, England
    Active Corporate (7 parents, 2 offsprings)
    Net Assets/Liabilities (Company account)
    640,954 GBP2020-03-31
    Officer
    2001-01-26 ~ now
    IIF 7 - Director → ME
  • 7
    MOUNTWEST 27 LIMITED - 1994-10-07
    65 Sussex Street, Glasgow, Scotland
    Active Corporate (8 parents)
    Equity (Company account)
    155,909 GBP2025-04-06
    Officer
    2001-08-10 ~ now
    IIF 8 - Director → ME
  • 8
    2 Old Bath Road, Newbury, Berkshire, England
    Active Corporate (6 parents)
    Net Assets/Liabilities (Company account)
    31,525 GBP2020-03-31
    Officer
    2018-01-29 ~ now
    IIF 11 - Director → ME
Ceased 3
  • 1
    R.S.K. ENVIRONMENT (AZERBAIJAN) LIMITED - 1997-11-10
    STRONACHS TRUSTEE & NOMINEE SERVICES LIMITED - 1996-01-18
    MOUNTWEST 47 LIMITED - 1995-07-25
    65 Sussex Street, Glasgow, Scotland
    Active Corporate (5 parents)
    Equity (Company account)
    118,011 GBP2020-04-05
    Officer
    1996-01-11 ~ 1998-03-26
    IIF 1 - Director → ME
  • 2
    Spring Lodge 172 Chester Road, Helsby, Cheshire, England
    Active Corporate (7 parents, 2 offsprings)
    Net Assets/Liabilities (Company account)
    640,954 GBP2020-03-31
    Officer
    2001-08-10 ~ 2021-03-30
    IIF 2 - Secretary → ME
    Person with significant control
    2016-04-06 ~ 2021-03-30
    IIF 13 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 13 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 3
    MOUNTWEST 27 LIMITED - 1994-10-07
    65 Sussex Street, Glasgow, Scotland
    Active Corporate (8 parents)
    Equity (Company account)
    155,909 GBP2025-04-06
    Officer
    2001-08-10 ~ 2021-03-30
    IIF 4 - Secretary → ME

The content of this website is protected by AgonGuard.

© 2022- Polylogarithmic Technology Ltd (Registered in England and Wales No. 14256313). All rights reserved.

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