TRANSITIONZERO
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Next accounts due
2026-12-31 (in 7mo)
Last filed for 2025-03-31
Confirmation statement due
2026-10-27 (in 5mo)
Last made up 2025-10-13
Watchouts
None on the register
Cash
£2M
+7.5% vs 2024
Net assets
£1M
+37.8% vs 2024
Employees
37
+60.9% vs 2024
Profit before tax
£407K
+95.5% vs 2024
Name history
Renamed 3 times since incorporation
- TRANSITIONZERO 2021-06-08 → present
- TRANSITIONZERO LTD 2021-05-14 → 2021-06-08
- ENERGY AND CLEAN AIR ANALYTICS 2020-12-30 → 2021-05-14
- ENERGY AND CLEAN AIR ANALYTICS LTD 2020-09-30 → 2020-12-30
Net assets
2-year trend · vs Consumer Discretionary median
Accounts
2-year trend · latest reflected 2025-03-31
| Metric | Trend | 2024-03-31 | 2025-03-31 |
|---|---|---|---|
| Turnover | £3,077,352 | £2,529,572 | |
| Operating profit | £208,026 | £406,786 | |
| Profit before tax | £208,026 | £406,786 | |
| Net profit | £208,026 | £406,786 | |
| Cash | £2,100,693 | £2,258,345 | |
| Total assets less current liabilities | £1,223,620 | £1,484,168 | |
| Net assets | £1,077,382 | £1,484,168 | |
| Equity | £1,077,382 | £1,484,168 | |
| Average employees | 23 | 37 | |
| Wages | £1,600,020 | £2,807,262 |
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
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2024-03-31 | 2025-03-31 |
|---|---|---|---|
| Operating margin | 6.8% | 16.1% | |
| Net margin | 6.8% | 16.1% | |
| Return on capital employed | 17.0% | 27.4% | |
| Gearing (liabilities / total assets) | 55.1% | 39.9% | |
| Current ratio | 2.03x | 2.50x |
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.
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Auditor
- Crowe U.K. LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The charitable company has cash resources to meet its day to day working capital requirements. Current forecasts indicate that the charitable company expects to be able to operate within these facilities for the foreseeable future. The trustees continue to believe the going concern basis of accounting is appropriate in preparing the annual financial statements.”
Significant events
- “TransitionZero hired a total of 16 new team members and continues to hire at a steady rate; it is projected that by the end of the first quarter of Financial Year 2025/2026 the team will have grown to 44+.”
- “Between February and April, we worked on revising our salary structure to give a more accurate representation of salaries across multiple disciplines at TransitionZero...”
- “Scenario Builder, formerly known as Future Energy Outlook, is our long-awaited flagship product, now ready for Beta testing.”
- “In July and October '24 respectively, the CTO and Head of Product left the business.”
- “We launched our ASEAN Power Grid model in December 2024, with material uptake from users in the region.”
- “The Banyan Software Foundation awarded us $1 million over two years to support our ML-derived datasets...”
- “QCF has agreed to award us a £500k grant to support our activities in the Philippines (a restricted grant) and also renewed our unrestricted grant: $1.5M per year for three years.”
- “In 2024 TransitionZero joined the GHG Protocol Scope 2 Technical Working Group...”
- “In 2024 we released TZ-CAT Philippines, a novel data product for assessing the costs and benefits of early coal plant retirement.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
4 active · 5 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| CHUNG, Ho Yan Yulanda | Director | 2021-10-27 | Feb 1974 | British |
| GRAY, Matthew Christopher | Director | 2025-08-19 | Apr 1982 | New Zealander |
| HOWARTH, Fiona Louise | Director | 2025-11-25 | Mar 1982 | British |
| SINCLAIR, Geoffrey David | Director | 2020-09-30 | Aug 1972 | British |
Show 5 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| BRISTOW, Nicola Lorna | Secretary | 2021-10-13 | 2021-12-22 |
| BERTSEKA, Paraskevi | Director | 2020-09-30 | 2025-02-24 |
| FERNANDO, Arjuna Gihan | Director | 2025-02-24 | 2025-12-01 |
| GARDNER, Thomas David | Director | 2020-09-30 | 2023-10-19 |
| OMI, Mayumi | Director | 2021-05-25 | 2025-10-30 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Ms Paraskevi Bertseka | Individual | Voting 25–50%, Appoints directors | 2020-09-30 | Ceased 2021-10-27 |
| Mr Thomas David Gardner | Individual | Voting 25–50%, Appoints directors | 2020-09-30 | Ceased 2021-10-27 |
| Mr Geoffrey David Sinclair | Individual | Voting 25–50%, Appoints directors | 2020-09-30 | Ceased 2021-10-27 |
Filing timeline
Last 20 of 39 total filings
Material constitutional events — rename, articles re-file, resolution
- 2025-10-10 MA Memorandum articles
- 2025-10-10 RESOLUTIONS Resolution
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2025-12-02 | TM01 | officers | Termination director company with name termination date | |
| 2025-12-01 | AP01 | officers | Appoint person director company with name date | |
| 2025-11-04 | TM01 | officers | Termination director company with name termination date | |
| 2025-10-17 | AD02 | address | Change sail address company with old address new address | |
| 2025-10-16 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-10-10 | MA | incorporation | Memorandum articles | |
| 2025-10-10 | RESOLUTIONS | resolution | Resolution | |
| 2025-09-16 | AA | accounts | Accounts with accounts type full | |
| 2025-08-20 | AP01 | officers | Appoint person director company with name date | |
| 2025-03-17 | AP01 | officers | Appoint person director company with name date | |
| 2025-03-14 | TM01 | officers | Termination director company with name termination date | |
| 2024-10-15 | AD03 | address | Move registers to sail company with new address | |
| 2024-10-14 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-10-14 | AD02 | address | Change sail address company with new address | |
| 2024-10-14 | CH01 | officers | Change person director company with change date | |
| 2024-08-07 | AD01 | address | Change registered office address company with date old address new address | |
| 2024-08-02 | AA | accounts | Accounts with accounts type full | |
| 2023-11-09 | TM01 | officers | Termination director company with name termination date | |
| 2023-10-13 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-10-12 | CS01 | confirmation-statement | Confirmation statement with no updates |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 9
- Capital events
- 0
- Officers appointed
- 2
- Officers resigned
- 2
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.
Year-on-year
FY2024 → FY2025 · period ending 2025-03-31 vs 2024-03-31
-
Turnover
-17.8%
£3,077,352 £2,529,572
-
Cash
+7.5%
£2,100,693 £2,258,345
-
Net assets
+37.8%
£1,077,382 £1,484,168
-
Employees
+60.9%
23 37
-
Operating profit
+95.5%
£208,026 £406,786
-
Profit before tax
+95.5%
£208,026 £406,786
-
Wages
+75.5%
£1,600,020 £2,807,262
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