WARRENS EMERALD BIOGAS LTD
As a subsidiary of the Bio Capital Group, the private company operates a commercial anaerobic digestion facility in Newton Aycliffe that processes food waste to generate renewable electricity, biomethane gas, and biofertiliser.
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Cash
£518k
-64.1% lowest in 5 filed years
Net assets
£6.1m
-22% lowest in 5 filed years
Employees
5
-75% lowest in 5 filed years
Profit before tax
£172k
+141.6% first positive since 2024
Net assets
5-year trend · vs Consumer Staples median
Accounts
5-year trend · Δ = latest vs prior filed period · latest reflected 2025-12-31
| Metric | Trend | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-12-31 | Δ vs prior |
|---|---|---|---|---|---|---|---|
| Turnover | £10,929,296 | £15,799,017 | £19,817,411 | £18,321,804 | £18,060,462 | -1.4% | |
| Operating profit | £3,293,804 | £5,936,159 | £5,789,893 | £856,901 | £1,519,975 | +77.4% | |
| Profit before tax | £2,124,304 | £4,721,757 | £4,598,435 | -£412,771 | £171,782 | +141.6% | |
| Net profit | £1,261,576 | £4,341,480 | £3,992,261 | £429,628 | -£484,318 | -212.7% | |
| Cash | £1,857,841 | £979,020 | £3,927,148 | £1,442,596 | £518,412 | -64.1% | |
| Total assets less current liabilities | £20,649,970 | £20,332,757 | £23,317,501 | £22,200,633 | £20,776,904 | -6.4% | |
| Net assets | £6,805,057 | £6,611,163 | £8,870,071 | £7,839,968 | £6,115,650 | -22% | |
| Equity | £6,805,057 | £6,611,163 | £8,870,071 | £7,839,968 | £6,115,650 | -22% | |
| Average employees | 18 | 19 | 20 | 20 | 5 | -75% | |
| Wages | — | — | £709,816 | £854,360 | £218,653 | -74.4% | |
| Directors' remuneration | — | — | £0 | £0 | £0 | — | |
| Directors' pension contributions | — | — | £0 | £0 | — | — |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. The Δ column is the change from the prior filed period as a percentage of |prior|; lines a company doesn't report show —. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-12-31 |
|---|---|---|---|---|---|---|
| Operating margin | 30.1% | 37.6% | 29.2% | 4.7% | 8.4% | |
| Net margin | 11.5% | 27.5% | 20.1% | 2.3% | -2.7% | |
| Return on capital employed | 16.0% | 29.2% | 24.8% | 3.9% | 7.3% | |
| Gearing (liabilities / total assets) | 69.2% | 69.9% | 67.0% | 67.8% | 73.6% | |
| Current ratio | — | — | 2.99x | 3.56x | 3.22x | |
| Interest cover | 2.82x | 4.87x | 4.63x | 0.66x | 1.13x |
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
- WARRENS EMERALD BIOGAS LTD 2018-11-08 → present
- EMERALD BIOGAS LTD 2009-04-24 → 2018-11-08
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Auditor
- Azets Audit Services
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“Having considered the information available at the time of approving the financial statements, the directors have a reasonable expectation that the company has adequate resources to continue in operational existence for the foreseeable future.”
Significant events
- “On April 23rd 2025 Equitix AD 2 CO Limited became the 100% shareholder in Bio Capital Limited following the successful acquisition of Helios 3 Biogas UK 1 LP interests in the company.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
4 active · 11 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| HARRISON, Jake | Director | 2025-02-01 | Jul 1989 | British |
| MCKEE, David Joseph, Dr | Director | 2025-05-12 | Oct 1980 | British |
| MCQUAID, James | Director | 2026-02-10 | Oct 1985 | Irish |
| SHARWOOD, Christopher Neil | Director | 2025-12-19 | Dec 1993 | Irish |
Show 11 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| BAINBRIDGE, Ian | Secretary | 2010-10-07 | 2019-12-11 |
| BAINBRIDGE, Ian | Director | 2009-04-24 | 2019-12-11 |
| COOPER, Ross Ashley | Director | 2019-12-11 | 2020-06-09 |
| CZULOWSKI, Mary Bethan | Director | 2022-01-26 | 2025-09-23 |
| FISHWICK, Michael | Director | 2020-01-24 | 2025-01-31 |
| GILL, Paul Ellis | Director | 2020-06-09 | 2025-12-19 |
| GISSIN, Erez | Director | 2019-12-11 | 2021-07-07 |
| RAANAN, Itai | Director | 2021-07-07 | 2025-04-23 |
| SHARPE, Anthony Peter | Director | 2021-10-01 | 2025-05-09 |
| WARREN, Adam | Director | 2009-04-24 | 2019-12-11 |
| WARREN, Antony Michael | Director | 2009-04-24 | 2019-12-11 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Emerald Holdco Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2022-10-25 | Active |
| Webl Holdings Limited | Corporate entity | Shares 75–100%, Voting 75–100% | 2017-02-01 | Ceased 2022-10-25 |
| Warrens Group Limited | Corporate entity | Shares 50–75% | 2017-02-01 | Ceased 2021-03-31 |
Filing timeline
Last 20 of 116 total filings
Material constitutional events — rename, articles re-file, resolution
- 2024-01-27 RESOLUTIONS Resolution
- 2024-01-27 MA Memorandum articles
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-09-14 | AA | accounts | Accounts with accounts type full | |
| 2026-02-16 | AP01 | officers | Appoint person director company with name date | |
| 2026-02-03 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2026-01-27 | CH01 | officers | Change person director company with change date | |
| 2025-12-30 | TM01 | officers | Termination director company with name termination date | |
| 2025-12-30 | AP01 | officers | Appoint person director company with name date | |
| 2025-10-10 | TM01 | officers | Termination director company with name termination date | |
| 2025-09-25 | AA | accounts | Accounts with accounts type full | |
| 2025-05-27 | CH01 | officers | Change person director company with change date | |
| 2025-05-20 | AP01 | officers | Appoint person director company with name date | |
| 2025-05-13 | TM01 | officers | Termination director company with name termination date | |
| 2025-04-29 | TM01 | officers | Termination director company with name termination date | |
| 2025-02-12 | AP01 | officers | Appoint person director company with name date | |
| 2025-02-11 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-02-04 | TM01 | officers | Termination director company with name termination date | |
| 2024-08-21 | AA | accounts | Accounts with accounts type full | |
| 2024-02-05 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-01-31 | CH01 | officers | Change person director company with change date | |
| 2024-01-27 | RESOLUTIONS | resolution | Resolution | |
| 2024-01-27 | MA | incorporation | Memorandum articles |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 7
- Capital events
- 0
- Officers appointed
- 2
- 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.