ENCYCLIS LIMITED
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Next accounts due
2026-09-30 (in 4mo)
Last filed for 2024-12-31
Confirmation statement due
2026-06-27 (in 1mo)
Last made up 2025-06-13
Watchouts
None on the register
Cash
£3M
+70.8% vs 2023
Net assets
£28M
+46.4% vs 2023
Employees
170
+9% vs 2023
Profit before tax
£5M
+14.6% vs 2023
Net assets
2-year trend · vs Utilities median
Accounts
2-year trend · latest reflected 2024-12-31
| Metric | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Turnover | £51,215,968 | £66,731,869 | |
| Operating profit | £1,483,944 | £2,857,142 | |
| Profit before tax | £4,247,297 | £4,868,041 | |
| Net profit | £4,247,297 | £8,968,193 | |
| Cash | £1,466,585 | £2,504,970 | |
| Total assets less current liabilities | — | — | |
| Net assets | £19,339,031 | £28,307,224 | |
| Equity | £19,339,031 | £28,307,224 | |
| Average employees | 156 | 170 | |
| Wages | £12,302,055 | £15,290,046 | |
| Directors' remuneration | — | — |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers
Year-on-year
FY2023 → FY2024 · period ending 2024-12-31 vs 2023-12-31
-
Turnover
+30.3%
£51,215,968 £66,731,869
-
Cash
+70.8%
£1,466,585 £2,504,970
-
Net assets
+46.4%
£19,339,031 £28,307,224
-
Employees
+9%
156 170
-
Operating profit
+92.5%
£1,483,944 £2,857,142
-
Profit before tax
+14.6%
£4,247,297 £4,868,041
-
Wages
+24.3%
£12,302,055 £15,290,046
Each % is (latest − prior) ÷ |prior| for the line item as filed. The comparison is only shown when the latest and prior accounts cover broadly equal-length periods — short or long stubs (typical around incorporation or a year-end change) are suppressed rather than misrepresented. Lines a company doesn't report are omitted. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Operating margin | 2.9% | 4.3% | |
| Net margin | 8.3% | 13.4% | |
| Gearing (liabilities / total assets) | 39.2% | 65.4% | |
| Current ratio | 2.53x | 1.48x | |
| Interest cover | — | 2.15x |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Name history
Renamed 1 time since incorporation
- ENCYCLIS LIMITED 2023-02-02 → present
- COVANTA ENERGY LIMITED 2006-06-13 → 2023-02-02
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Abridged
- Yes — abridged accounts (limited disclosure)
- Auditor
- Ernst & Young
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“Having considered the Company's expected cashflows for the foreseeable future, the directors have a reasonable expectation that the Company has adequate resources to meet all obligations as they fall due for a period of more than twelve months from the date of approval of the financial statements. Accordingly, the financial statements have been prepared on a going concern basis.”
Group structure
- ENCYCLIS LIMITED · parent
- Earls Gate Energy Centre Limited
- Rookery South Limited
- Newhurst ERF Ltd
- Protos ERF Limited
- Protos ERF CCS Ltd
- Dublin Waste to Energy Limited
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
3 active · 22 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| GREGORY, Maria | Secretary | 2023-07-23 | — | — |
| BURROWS SMITH, Mark | Director | 2025-08-01 | Jan 1967 | British |
| LEONARD, Andrew Oliver | Director | 2023-10-14 | Feb 1976 | British |
Show 22 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| OYEGOKE, Toye | Secretary | 2021-01-01 | 2023-07-23 |
| PENHALLURICK, Fiona Puleston | Secretary | 2012-08-21 | 2013-11-30 |
| JORDAN COMPANY SECRETARIES LIMITED | Corporate Secretary | 2006-06-13 | 2012-06-08 |
| VISTRA COMPANY SECRETARIES LIMITED | Corporate Secretary | 2013-10-25 | 2021-01-01 |
| ABOLT, Craig Dean | Director | 2006-06-13 | 2006-08-18 |
| BOLOGNINI, Vincent Louis | Director | 2006-07-13 | 2012-06-28 |
| CHILTON, Malcolm David | Director | 2006-11-06 | 2013-04-22 |
| CHOWDHARY, Priya | Director | 2022-06-21 | 2023-07-23 |
| JONES, Steven Paul | Director | 2011-04-01 | 2013-05-31 |
| KLETT, John Michael | Director | 2006-07-13 | 2008-12-02 |
| KOLTIS, Tommy John | Director | 2008-12-12 | 2023-10-14 |
| LILL, Edward John | Director | 2008-12-12 | 2013-03-08 |
| MICHAELSON, Richard Owen | Director | 2021-01-01 | 2025-07-01 |
| MULCAHY, Matthew Robert | Director | 2012-06-28 | 2022-06-21 |
| ORLANDO, Anthony | Director | 2011-11-29 | 2013-11-25 |
| ORLANDO, Anthony | Director | 2006-06-13 | 2008-12-02 |
| PENHALLURICK, Fiona Puleston | Director | 2010-06-11 | 2013-11-30 |
| SIMPSON, Timothy John | Director | 2013-04-24 | 2021-01-01 |
| SIMPSON, Timothy John | Director | 2006-06-13 | 2008-12-02 |
| WHITNEY, Scott Warren | Director | 2006-11-06 | 2011-04-30 |
| WRIGHT, Peter | Director | 2017-04-01 | 2021-01-01 |
| WRIGHT, Peter Stephen | Director | 2013-05-22 | 2013-11-30 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Encyclis Bidco Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2022-07-01 | Active |
| Covanta Holding Corporation | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2016-04-06 | Ceased 2022-07-01 |
Filing timeline
Last 20 of 160 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-02-18 | AAMD | accounts | Accounts amended with accounts type full | |
| 2026-01-20 | AAMD | accounts | Accounts amended with accounts type small | |
| 2025-10-03 | AA | accounts | Accounts with accounts type small | |
| 2025-08-06 | CH01 | officers | Change person director company with change date | |
| 2025-08-05 | AP01 | officers | Appoint person director company with name date | |
| 2025-07-02 | TM01 | officers | Termination director company with name termination date | |
| 2025-06-16 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-11-18 | CH01 | officers | Change person director company with change date | |
| 2024-08-12 | AA | accounts | Accounts with accounts type full | |
| 2024-06-24 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-03-27 | MR01 | mortgage | Mortgage create with deed with charge number charge creation date | |
| 2023-10-27 | AP01 | officers | Appoint person director company with name date | |
| 2023-10-27 | TM01 | officers | Termination director company with name termination date | |
| 2023-08-08 | AA | accounts | Accounts with accounts type small | |
| 2023-08-05 | TM02 | officers | Termination secretary company with name termination date | |
| 2023-08-05 | AP03 | officers | Appoint person secretary company with name date | |
| 2023-08-05 | TM01 | officers | Termination director company with name termination date | |
| 2023-07-17 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2023-04-26 | PSC07 | persons-with-significant-control | Cessation of a person with significant control | |
| 2023-04-26 | PSC02 | persons-with-significant-control | Notification of a person with significant control |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 7
- Capital events
- 0
- Officers appointed
- 1
- Officers resigned
- 1
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.