opendata.bot
Company number
05845046

ENCYCLIS LIMITED

Officer · GREGORY, Maria and 24 others
Active
✓ Active company on the official register. Next accounts due 30 September 2026.
2 outstanding charges registered against this company. View charges.

Company details

Registered name
ENCYCLIS LIMITED
Company number
05845046
Registered office
FLOOR 4, LYNTON HOUSE, 7-12 TAVISTOCK SQUARE, LONDON, WC1H 9LT, ENGLAND
Company type
Private Limited Company
Incorporated on
13 June 2006
Status
Active
Age
20 years
Previous names
COVANTA ENERGY LIMITED (to 02 Feb 2023)
Nature of business (SIC)
35110 — Production of electricity
Accounts — next due
30 Sept 2026
Accounts — last made up to
31 Dec 2024
Confirmation statement — next due
27 Jun 2027
Confirmation statement — last
13 Jun 2026

What the register says

Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.

Companies House register snapshot, read 02/09/2026.

Officers

3 active · 22 resigned

secretary
Appointed 23/07/2023
Active
director
Appointed 01/08/2025
Active
director
Appointed 14/10/2023
Active

People with significant control

Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors

Covanta Holding Corporation
owns 75–100% of shares · holds 75–100% of voting rights · can appoint and remove directors
Notified 06/04/2016
Encyclis Bidco Limited
owns 75–100% of shares · holds 75–100% of voting rights · can appoint and remove directors
Notified 01/07/2022

Corporate structure

Who controls this company, and who they control in turn

2 controllers Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Encyclis Bidco Limited name only
owns 75–100% of shares · holds 75–100% of votes · can appoint and remove directors Notified 01/07/2022 Controls 2 companies
Covanta Holding Corporation name only
owns 75–100% of shares · holds 75–100% of votes · can appoint and remove directors Control ended 01/07/2022 Controls 8 companies

Serving officers

secretary Appointed 23/07/2023
director Appointed 01/08/2025
director Appointed 14/10/2023

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
01/08/2025 Director appointed BURROWS SMITH, Mark
01/07/2025 Director resigned MICHAELSON, Richard Owen
25/03/2024 Charge registered A registered charge
14/10/2023 Director resigned KOLTIS, Tommy John
14/10/2023 Director appointed LEONARD, Andrew Oliver
23/07/2023 Director resigned CHOWDHARY, Priya
23/07/2023 Secretary resigned OYEGOKE, Toye
23/07/2023 Secretary appointed GREGORY, Maria
02/02/2023 Registered name changed COVANTA ENERGY LIMITED ENCYCLIS LIMITED
01/07/2022 Person with significant control ceased Covanta Holding Corporation
01/07/2022 Person with significant control added Encyclis Bidco Limited
21/06/2022 Director resigned MULCAHY, Matthew Robert
21/06/2022 Director appointed CHOWDHARY, Priya
01/01/2021 Director resigned WRIGHT, Peter
01/01/2021 Director resigned SIMPSON, Timothy John
01/01/2021 Corporate-secretary resigned VISTRA COMPANY SECRETARIES LIMITED
01/01/2021 Director appointed MICHAELSON, Richard Owen
01/01/2021 Secretary appointed OYEGOKE, Toye
01/04/2017 Director appointed WRIGHT, Peter
06/04/2016 Person with significant control added Covanta Holding Corporation

Financial highlights

No figures could be read from the accounts filed on 18 Feb 2026. Companies House holds some filings only as a document image, which carries no tagged figures; the filing itself is on the register either way.

Documents for ENCYCLIS LIMITED

Need this one company on file? Buy the document on its own — no plan required.

Company extract£1.99

The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.

PDF Order
Financial statements£3.99

Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.

PDF + CSV Order
Ownership report£3.99

Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.

PDF Order

Filing history

Most recent filings

AA — accounts-with-accounts-type-full
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AAMD — accounts-amended-with-accounts-type-full
accounts
AAMD — accounts-amended-with-accounts-type-small
accounts
AA — accounts-with-accounts-type-small
accounts
CH01 — change-person-director-company-with-change-date
officers
AP01 — appoint-person-director-company-with-name-date
officers
TM01 — termination-director-company-with-name-termination-date
officers
CS01 — confirmation-statement-with-no-updates
confirmation-statement
CH01 — change-person-director-company-with-change-date
officers
AA — accounts-with-accounts-type-full
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
MR01 — mortgage-create-with-deed-with-charge-number-charge-creation-date
mortgage
AP01 — appoint-person-director-company-with-name-date
officers
TM01 — termination-director-company-with-name-termination-date
officers
AA — accounts-with-accounts-type-small
accounts
TM02 — termination-secretary-company-with-name-termination-date
officers
AP03 — appoint-person-secretary-company-with-name-date
officers
TM01 — termination-director-company-with-name-termination-date
officers
CS01 — confirmation-statement-with-updates
confirmation-statement
PSC07 — cessation-of-a-person-with-significant-control
persons-with-significant-control
PSC02 — notification-of-a-person-with-significant-control
persons-with-significant-control
SH01 — capital-allotment-shares
capital
AD01 — change-registered-office-address-company-with-date-old-address-new-address
address
AD01 — change-registered-office-address-company-with-date-old-address-new-address
address

Charges

2 outstanding · 0 satisfied

A registered charge — persons entitled: Hsbc UK Bank PLC
outstanding
Charge over a bank account — persons entitled: The Governor and Company of the Bank of Ireland
outstanding

Data protection register

Registered with the Information Commissioner's Office as a data protection fee payer.

Encyclis Limited — WC1H 9LT
Tier 2 · renews 24/09/2027
ICO entry

The ICO publishes no company number, so this is matched on the registered name and confirmed by the postcode. Check the ICO entry before relying on it.

Get this company via API

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Frequently asked questions

What is the company number of ENCYCLIS LIMITED?
According to the official registry, the company number of ENCYCLIS LIMITED is 05845046.
Where is ENCYCLIS LIMITED registered?
The registered office is FLOOR 4, LYNTON HOUSE, 7-12 TAVISTOCK SQUARE, LONDON, WC1H 9LT, ENGLAND.
Who runs ENCYCLIS LIMITED?
GREGORY, Maria is listed among the officers of ENCYCLIS LIMITED.
What is the SIC code of ENCYCLIS LIMITED?
The nature of business is recorded under SIC code 35110 — Production of electricity.
Who controls ENCYCLIS LIMITED?
Covanta Holding Corporation is recorded as a person with significant control, and owns 75–100% of shares, holds 75–100% of voting rights, can appoint and remove directors.
When are the next accounts of ENCYCLIS LIMITED due?
The next annual accounts are due by 30 September 2026, and the last accounts were made up to 31 December 2024.
Does ENCYCLIS LIMITED have any outstanding charges?
Yes — 2 outstanding charges are registered against the company.

About ENCYCLIS LIMITED (05845046)

ENCYCLIS LIMITED is a private limited company incorporated on 13 June 2006 and registered in the United Kingdom under company number 05845046. Its registered office is at FLOOR 4, LYNTON HOUSE, 7-12 TAVISTOCK SQUARE, LONDON, WC1H 9LT, ENGLAND. The recorded nature of business is production of electricity (SIC 35110). The company is currently active , with statutory accounts last made up to 31 December 2024. 25 active officers are on record , and the person with significant control is Covanta Holding Corporation. 2 outstanding charges are registered against it. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 9 September 2026.

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