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Cash

£1m

+282.5% vs 2024

Net assets

£12m

+11.8% highest in 5 filed years

Employees

319

+3.9% highest in 5 filed years

Profit before tax

£1.7m

+140.4% highest in 5 filed years

Accounts

5-year trend · Δ = latest vs prior filed period · latest reflected 2025-12-31

Metric Trend 2020-12-312021-12-312023-12-312024-12-312025-12-31 Δ vs prior
Turnover £37,782,239£38,247,759£44,043,801£50,001,470£50,731,901 +1.5%
Operating profit £1,551,348£1,886,542£2,217,365£1,626,144£2,528,775 +55.5%
Profit before tax £1,215,346£1,477,179£1,330,148£709,153£1,704,845 +140.4%
Net profit £1,263,947£1,554,840£1,232,401£596,846£1,269,260 +112.7%
Cash £621,153£2,026,495£483,849£261,894£1,001,827 +282.5%
Total assets less current liabilities £10,980,306£12,645,513£12,262,100£12,644,503£14,342,381 +13.4%
Net assets £8,954,073£10,108,913£10,202,769£10,799,615£12,068,875 +11.8%
Equity £8,954,073£10,108,913£10,202,769£10,799,615£12,068,875 +11.8%
Average employees 263288297307319 +3.9%
Wages £7,450,162£8,102,160£8,980,650£10,548,121£11,813,502 +12%
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. 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 2020-12-312021-12-312023-12-312024-12-312025-12-31
Operating margin 4.1%4.9%5.0%3.3%5.0%
Net margin 3.3%4.1%2.8%1.2%2.5%
Return on capital employed 14.1%14.9%18.1%12.9%17.6%
Gearing (liabilities / total assets) 51.8%63.0%65.3%61.3%60.1%
Current ratio ——1.43x1.53x1.57x
Interest cover 4.62x4.61x2.50x1.77x3.07x

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. CULTECH LTD 1997-09-29 → present
  2. CULTEC LIMITED 1994-03-16 → 1997-09-29

Audit & accounting basis

Accounting basis
FRS 102
Reporting scope
Standalone (parent only)
Auditor
Azets Audit Services
Audit opinion
Unqualified (clean)
Going concern
Affirmed

“The financial statements have been prepared on a going concern basis which assumes that the company will continue in operational existence for the foreseeable future.”

Significant events

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

People

3 active · 12 resigned

Name Role Appointed Born Nationality
LEARY, Richard Alan Director 2025-12-23 Mar 1971 British
PLUMMER, Nigel Terence Director 1995-03-01 Jul 1957 British
PLUMMER, Susan Frances, Dr Director 1997-04-01 May 1956 British
Show 12 resigned officers
Name Role Appointed Resigned
ANDREWS, Susan Secretary 1994-03-17 1994-09-25
JONATHAN, Raymond Charles Secretary 2004-08-31 2009-08-28
SEDGWICK, Anne Elizabeth Secretary 1994-09-29 1998-03-17
SEYMOUR, Anthony William Secretary 1997-11-10 2004-08-31
JPCORS LIMITED Corporate Nominee Secretary 1994-03-16 1994-03-16
AUSTIN, Robert Frank Director 1996-04-15 1997-03-17
JONATHAN, Raymond Charles Director 2003-08-01 2009-08-28
QUILT, Peter, Dr Director 1997-04-30 2017-08-13
STIRLING, John Kenneth Director 2003-08-01 2011-12-31
STIRLING, John Kenneth Director 1995-02-01 2002-12-06
WARD, Patricia Mary Director 1994-03-17 1994-10-25
JPCORD LIMITED Corporate Nominee Director 1994-03-16 1994-03-16

Ownership

Persons with significant control

Name Kind Nature of control Notified Status
Nsjl Ltd Corporate entity Shares 75–100% 2024-09-06 Active
Dr Peter Quilt Individual Significant influence 2017-03-16 Ceased 2017-08-13
Mr Nigel Terence Plummer Individual Significant influence 2017-03-16 Active
Dr Susan Frances Plummer Individual Significant influence 2017-03-16 Active

Filing timeline

Last 20 of 163 total filings

Date Type Category Description
2026-09-30 AA accounts Accounts with accounts type full PDF
2026-09-29 CS01 confirmation-statement Confirmation statement with updates PDF
2026-08-10 PSC04 persons-with-significant-control Change to a person with significant control PDF
2026-04-14 MR04 mortgage Mortgage satisfy charge full PDF
2026-04-12 CS01 confirmation-statement Confirmation statement with no updates PDF
2025-12-23 AP01 officers Appoint person director company with name date PDF
2025-09-30 AA accounts Accounts with accounts type full PDF
2025-03-17 CS01 confirmation-statement Confirmation statement with no updates PDF
2024-09-06 PSC02 persons-with-significant-control Notification of a person with significant control PDF
2024-07-19 AA accounts Accounts with accounts type full PDF
2024-04-17 MR01 mortgage Mortgage create with deed with charge number charge creation date PDF
2024-04-02 CS01 confirmation-statement Confirmation statement with no updates PDF
2023-12-22 AA accounts Accounts with accounts type full PDF
2023-05-20 MR04 mortgage Mortgage satisfy charge full PDF
2023-05-20 MR04 mortgage Mortgage satisfy charge full PDF
2023-03-29 CS01 confirmation-statement Confirmation statement with no updates PDF
2022-07-14 AA accounts Accounts with accounts type full PDF
2022-04-22 CS01 confirmation-statement Confirmation statement with no updates PDF
2021-09-14 AA accounts Accounts with accounts type full PDF
2021-03-24 CS01 confirmation-statement Confirmation statement with no updates PDF

Public-record activity

Raw counts from Companies House — last 12–24 months

Filings
6

last 12 months

Capital events
0

last 24 months

Officers appointed
1

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