Ltd Facts The UK company register, as filed

Register entry · No. 04017927

MAINLINE ENVIRONMENTAL SYSTEMS LIMITED

Active Private Limited Company Incorporated 20 Jun 2000

Checks

1 to look at 9 clear · 4 can't tell yet

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    Charges

    1 outstanding: a lender holds security over its assets and is paid first if it fails.

    Companies House register
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    Company status

    Active.

    Companies House register
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    Accounts on time

    Next due 31 Mar 2027.

    Companies House register
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    Confirmation statement on time

    Next due 4 Jul 2027.

    Companies House register
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    Disqualified directors

    None of the 2 current officers checked are disqualified.

    Companies House disqualified directors register · See it
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    Directors

    1 current director.

    Officers on the register · See it
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    Owners

    2 owners on file.

    People with significant control · See it
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    Last filed accounts

    Net assets £268,695.

    Accounts to 30 Jun 2025 · See it
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    Trading history

    Incorporated 20 Jun 2000 (26 years ago).

    Companies House register
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    Name changes

    1 earlier name, none in the last year.

    Names over time

From the public register, filing history, officers, owners and filed accounts, as of 10 Nov 2026. Not a credit score or advice: open the filings before relying on them. JSON

  1. Registered office

    WELLINGTON HOUSE, 273-275 HIGH STREET, LONDON COLNEY, HERTFORDSHIRE, UNITED KINGDOM, AL2 1HA

    As filed with Companies House.

  2. Nature of business

    • 43290 Other construction installation

  3. Accounts

    Next due
    31 Mar 2027
    Last made up to
    30 Jun 2025
    Type
    TOTAL EXEMPTION FULL

  4. Confirmation statement

    Next due
    4 Jul 2027
    Last made up to
    20 Jun 2026

  5. Charges

    Outstanding
    1
    All time
    1

  6. Names

    1. MAINLINE ENVIRONMENTAL SYSTEMS LIMITED current
    2. MAINLINE ELECTRICAL SERVICES LTD earlier

Figures

Year endTurnoverProfitCashNet assetsStaff
30 Jun 2025 not published not published £19,948 £268,695 1
30 Jun 2024 not published not published £832 £198,842 1
30 Jun 2023 not published not published £8,093 £201,616 1
30 Jun 2022 not published not published £12,897 £205,350 1
30 Jun 2021 not published not published £22,520 £210,584 1
30 Jun 2020 not published not published £75,938 £207,783 1

* From the following year's accounts (prior-year figures).

Public contracts

No contracts found on Find a Tender under this company number.

Matching is by Companies House number only, so contracts filed without the number are not shown.

Contains public sector information licensed under the Open Government Licence v3.0. Source: Find a Tender award notices. JSON

People

Officers All 4, with past →

NameRoleAppointedResignedBornNationality · lives in
Paul John Kenyon Electrical Contractor Director 20 Jun 2000 — June 1965 British · England
Caroline Sandra Kenyon Secretary 20 Jun 2000 — — British

Owners and controllers All 2, with past →

NameControlNotifiedCeasedBornNationality · lives in
Mrs Caroline Sandra Kenyon Ownership of shares 25 to 50 percent; Voting rights 25 to 50 percent 6 Apr 2016 — December 1966 British · England
Mr Paul John Kenyon Ownership of shares 25 to 50 percent; Voting rights 25 to 50 percent 6 Apr 2016 — June 1965 British · England

From the public register. We show month and year of birth only, and no addresses. Privacy and your data

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Questions

Is MAINLINE ENVIRONMENTAL SYSTEMS LIMITED still trading?

The register shows MAINLINE ENVIRONMENTAL SYSTEMS LIMITED as active.

What does MAINLINE ENVIRONMENTAL SYSTEMS LIMITED do?

It files the industry code 43290 (Other construction installation).

When was MAINLINE ENVIRONMENTAL SYSTEMS LIMITED set up?

It was incorporated on 20 June 2000.

When are MAINLINE ENVIRONMENTAL SYSTEMS LIMITED's accounts due?

Next accounts are due by 31 March 2027. The last accounts were made up to 30 June 2025.

When is MAINLINE ENVIRONMENTAL SYSTEMS LIMITED's next confirmation statement due?

By 4 July 2027.

Who runs MAINLINE ENVIRONMENTAL SYSTEMS LIMITED?

MAINLINE ENVIRONMENTAL SYSTEMS LIMITED has 1 current director and 1 other current officer. They're listed under People on this page.

Similar companies

Same industry code (43290), active, set up around the same time. More in this industry →

  1. 04133096 AMAX FIRE AND SECURITY LIMITED Active Private Limited Company Inc. 29 Dec 2000 43290 · Other construction installation
  2. 04131810 FK RESTORATION LIMITED Active Private Limited Company Inc. 28 Dec 2000 43290 · Other construction installation
  3. 04131445 PARKLAND RESTORATION LIMITED Active Private Limited Company Inc. 28 Dec 2000 43290 · Other construction installation
  4. 04133334 AXCENT MANAGEMENT & IT SERVICES LIMITED Active Private Limited Company Inc. 27 Dec 2000 43290 · Other construction installation
  5. 04130960 BOND BUILDING SERVICES LIMITED Active Private Limited Company Inc. 27 Dec 2000 43290 · Other construction installation

The file

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Source: Companies House, data file of 2026-11-01 and its live updates. View on Companies House