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Next accounts due

2026-09-30 (in 4mo)

Last filed for 2025-05-31

Confirmation statement due

2026-08-17 (in 3mo)

Last made up 2025-08-03

Watchouts

1 item

Cash

£704K

+37.8% vs 2024

Net assets

£8M

+13.1% vs 2024

Employees

32

-3% vs 2024

Profit before tax

£972K

+56.4% vs 2024

Watchouts

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

Accounts

7-year trend · latest reflected 2025-05-31

Metric Trend 2019-05-312020-05-312021-05-312022-05-312023-05-312024-05-312025-05-31
Turnover £24,794,057£18,241,074
Operating profit £723,556£1,134,110
Profit before tax £621,671£972,080
Net profit £722,966£968,511
Cash £511,096£704,059
Total assets less current liabilities £7,403,554£8,372,065
Net assets
Equity £339,324£1,527,327£4,944,235£6,205,985£7,403,554£8,372,065
Average employees 3332
Wages £1,605,168£1,425,178
Directors' remuneration £298,583£152,343

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

FY2024 → FY2025 · period ending 2025-05-31 vs 2024-05-31

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 2019-05-312020-05-312021-05-312022-05-312023-05-312024-05-312025-05-31
Operating margin 2.9%6.2%
Net margin 2.9%5.3%
Return on capital employed 9.8%13.5%
Current ratio 1.66x2.15x
Interest cover 7.10x7.00x

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

  1. ISDI LIMITED 2010-11-25 → present
  2. GORDONS 171 LIMITED 2010-07-14 → 2010-11-25

Audit & accounting basis

Accounting basis
FRS 102
Reporting scope
Consolidated group
Auditor
Thorne Lancaster Parker
Audit opinion
Unqualified (clean)
Going concern
Affirmed

“In auditing the financial statements, we have concluded that the directors' use of the going concern basis of accounting in the preparation of the financial statements is appropriate.”

Group structure

  1. ISDI LIMITED · parent
    1. ISDI Deutschland GmbH 100% · Germany · Production and Operations
    2. Spectrum Logic Limited 100% · England · Design and manufacture of X-ray detectors
    3. ISDI GmbH 100% · Villach Commercial · R&D natural sciences and engineering
    4. ISDI CY Ltd 100% · Nicosia · Sales and Marketing

Significant events

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

People

5 active · 5 resigned

Name Role Appointed Born Nationality
ANAXAGORAS, Thalis, Dr Director 2011-07-07 Jan 1980 Cypriot
BULLARD, Edward Frederick Director 2013-02-01 Sep 1968 English
GAO, Zihuan Director 2024-04-16 Mar 1995 Chinese
HERMANS, Louis, Dr Director 2017-05-12 Mar 1956 Belgian
INNES, Alan Graeme Director 2019-07-29 Aug 1966 British
Show 5 resigned officers
Name Role Appointed Resigned
ALLINSON, Nigel Martin, Professor Director 2014-02-14 2018-11-29
ALLINSON, Nigel Martin, Professor Director 2011-05-11 2011-11-14
BULLARD, Edward Frederick Director 2010-11-25 2011-06-06
FANT, Andrea Director 2011-07-07 2012-02-07
ROBINS, Derek Ian Director 2010-07-14 2010-11-25

Ownership

Persons with significant control

Name Kind Nature of control Notified Status
Mr Liu Jianqiang Individual Shares 25–50% 2024-04-16 Ceased 2024-05-21
Mr Edward Frederick Bullard Individual Shares 25–50%, Voting 25–50% 2016-04-06 Active
Mr Thalis Anaxagoras Individual Shares 25–50%, Voting 25–50% 2016-04-06 Active

Filing timeline

Last 20 of 87 total filings

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

  • 2024-04-23 RESOLUTIONS Resolution
  • 2024-04-23 MA Memorandum articles
Date Type Category Description
2026-03-25 PSC04 persons-with-significant-control Change to a person with significant control PDF
2026-03-24 PSC04 persons-with-significant-control Change to a person with significant control PDF
2026-03-24 PSC04 persons-with-significant-control Change to a person with significant control PDF
2026-02-17 AA01 accounts Change account reference date company previous shortened PDF
2025-11-20 AA accounts Accounts with accounts type group PDF
2025-08-11 CH01 officers Change person director company with change date PDF
2025-08-11 CH01 officers Change person director company with change date PDF
2025-08-07 CS01 confirmation-statement Confirmation statement with no updates PDF
2024-10-14 AA accounts Accounts with accounts type group PDF
2024-08-26 CS01 confirmation-statement Confirmation statement with updates PDF
2024-05-23 PSC07 persons-with-significant-control Cessation of a person with significant control PDF
2024-05-09 PSC01 persons-with-significant-control Notification of a person with significant control PDF
2024-04-23 RESOLUTIONS resolution Resolution
2024-04-23 MA incorporation Memorandum articles
2024-04-18 AP01 officers Appoint person director company with name date PDF
2023-08-23 AA accounts Accounts with accounts type group PDF
2023-08-03 CS01 confirmation-statement Confirmation statement with no updates PDF
2023-02-07 AA accounts Accounts with accounts type group PDF
2023-01-24 SH01 capital Capital allotment shares PDF
2022-12-20 CS01 confirmation-statement Confirmation statement with no updates PDF

Public-record activity

Raw counts from Companies House — last 12–24 months

Filings
8

last 12 months

Capital events
0

last 24 months

Officers appointed
0

last 12 months

Officers resigned
0

last 12 months

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

Official Companies House page