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Next accounts due

2026-09-30 (in 4mo)

Last filed for 2024-12-31

Confirmation statement due

2026-11-22 (in 6mo)

Last made up 2025-11-08

Watchouts

2 items

Cash

£4M

+201.8% highest in 6 filed years

Net assets

£5M

+130.5% highest in 4 filed years

Employees

72

-13.3% vs 2023

Profit before tax

Period ending 2024-12-31

Watchouts

Facts from the Companies House register and the latest accounts — not a rating

Accounts

6-year trend · latest reflected 2024-12-31

Metric Trend 2019-12-312020-12-312021-12-312022-12-312023-12-312024-12-31
Turnover
Operating profit
Profit before tax
Net profit -£586,456-£4,874,374-£5,322,050
Cash £56,416£36,798£141,119£104,829£1,377,667£4,158,004
Total assets less current liabilities £703-£199,488£2,129,183£4,907,982
Net assets £2,129,183£4,907,982
Equity £703-£199,488£2,129,183£4,907,982
Average employees 6368372
Wages £0
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

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 2019-12-312020-12-312021-12-312022-12-312023-12-312024-12-31
Current ratio 1.28x3.19x

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

  1. SERO TECHNOLOGIES LIMITED 2020-05-06 → present
  2. SERO ENERGY LIMITED 2017-08-23 → 2020-05-06

Audit & accounting basis

Accounting basis
FRS 102 §1A
Reporting scope
Consolidated group
Abridged
Yes — abridged accounts (limited disclosure)
Auditor
Andrew Howells of Azets Audit Services
Audit opinion
Unqualified (clean)
Going concern
Affirmed

“The group has incurred losses of £5.3m for the year ended 31 December 2024. During the year the group raised £7.5m in additional funding and subsequent to 31 December 2024 the group has the option to draw down £2.5m of further additional funding. The directors have prepared long term forecasts for a period in excess of 12 months from the date of approval of the financial statements, those forecasts take account of this funding and reasonably plausible downsides. The forecasts show that the group has sufficient funds to continue to meet its liabilities as they fall due for at least 12 months from the date of approval of the financial statements. On the basis of those forecasts the directors have concluded that the going concern basis of accounting is appropriate.”

Group structure

  1. SERO TECHNOLOGIES LIMITED · parent
    1. Sero Life Limited 100%
    2. Sero BEE Limited 100%

Significant events

Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers

People

6 active · 5 resigned

Name Role Appointed Born Nationality
HEWETT, Amy Secretary 2025-05-15
BEEVERS, Kevin Graham Director 2023-02-01 Jan 1968 Welsh
BURTON, Matthew James Director 2021-12-21 Apr 1984 British
SANDYS, Laura Director 2024-09-26 Jun 1964 British
WILLIAMS, David James, Dr Director 2017-08-23 Feb 1959 British
WILLIAMS, James Leigh Director 2018-07-04 Jun 1985 British
Show 5 resigned officers
Name Role Appointed Resigned
EVANS, Holly Secretary 2020-01-15 2025-05-15
MAHER, Gearoid William Director 2021-12-21 2022-06-08
PILLAI, Katherine Ruth Director 2025-04-14 2025-06-18
RENDEL, Andrew Thomas Director 2022-06-08 2025-04-14
SUTTON, Andrew David George Director 2019-03-18 2026-04-30

Ownership

Persons with significant control

Name Kind Nature of control Notified Status
Legal & General Capital Investments Limited Corporate entity Shares 25–50%, Voting 25–50% 2024-12-11 Ceased 2026-02-16
Carlyle Trust Limited(The) Corporate entity Shares 25–50%, Voting 25–50% 2024-12-11 Ceased 2026-02-16
Mr James Leigh Williams Individual Shares 75–100% 2018-07-04 Ceased 2018-11-30
Dr David James Williams Individual Shares 75–100%, Voting 75–100%, Appoints directors 2017-08-23 Ceased 2018-07-04

Filing timeline

Last 20 of 92 total filings

Material constitutional events — rename, articles re-file, resolution

  • 2026-02-23 MA Memorandum articles
  • 2026-02-23 RESOLUTIONS Resolution
  • 2024-12-27 RESOLUTIONS Resolution
  • 2024-12-27 MA Memorandum articles
Date Type Category Description
2026-05-01 TM01 officers Termination director company with name termination date PDF
2026-03-25 PSC08 persons-with-significant-control Notification of a person with significant control statement PDF
2026-03-18 PSC07 persons-with-significant-control Cessation of a person with significant control PDF
2026-03-18 PSC07 persons-with-significant-control Cessation of a person with significant control PDF
2026-02-23 MA incorporation Memorandum articles
2026-02-23 RESOLUTIONS resolution Resolution
2026-02-18 MR01 mortgage Mortgage create with deed with charge number charge creation date PDF
2026-02-17 SH01 capital Capital allotment shares PDF
2025-11-17 CS01 confirmation-statement Confirmation statement with updates PDF
2025-10-02 RP01SH01 miscellaneous Legacy PDF
2025-06-18 TM01 officers Termination director company with name termination date PDF
2025-05-29 AA accounts Accounts with accounts type group PDF
2025-05-15 AP03 officers Appoint person secretary company with name date PDF
2025-05-15 TM02 officers Termination secretary company with name termination date PDF
2025-04-14 AP01 officers Appoint person director company with name date PDF
2025-04-14 TM01 officers Termination director company with name termination date PDF
2024-12-27 RESOLUTIONS resolution Resolution
2024-12-27 MA incorporation Memorandum articles
2024-12-23 PSC02 persons-with-significant-control Notification of a person with significant control PDF
2024-12-23 PSC02 persons-with-significant-control Notification of a person with significant control PDF

Public-record activity

Raw counts from Companies House — last 12–24 months

Filings
14

last 12 months

Capital events
1

last 24 months

Officers appointed
1

last 12 months

Officers resigned
3

last 12 months

Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.

Official Companies House page