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Next accounts due

2026-12-31 (in 7mo)

Last filed for 2025-03-31

Confirmation statement due

2027-02-14 (in 9mo)

Last made up 2026-01-31

Watchouts

None on the register

Cash

£2M

+0.7% vs 2024

Net assets

£6M

+16.8% vs 2024

Employees

116

+7.4% vs 2024

Profit before tax

£1M

-37.3% vs 2024

Accounts

3-year trend · latest reflected 2025-03-31

Metric Trend 2023-04-012024-03-312025-03-31
Turnover £19,887,926£16,186,753
Operating profit £1,935,647£1,238,717
Profit before tax £1,828,324£1,146,582
Net profit £2,342,124£871,345
Cash £1,522,971£1,534,091
Total assets less current liabilities £5,347,147£6,409,090
Net assets £5,178,599£6,049,944
Equity £2,836,475£5,178,599£6,049,944
Average employees 108116
Wages £5,429,068£5,061,469
Directors' remuneration £618,011£677,039

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 2025-03-31 vs 2024-03-31

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 2023-04-012024-03-312025-03-31
Operating margin 9.7%7.7%
Net margin 11.8%5.4%
Return on capital employed 36.2%19.3%
Gearing (liabilities / total assets) 53.9%49.6%
Current ratio 1.51x1.68x
Interest cover 18.04x13.44x

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 5 times since incorporation

  1. STERLING THERMAL TECHNOLOGY LIMITED 2007-04-20 → present
  2. PCC STERLING LIMITED 2001-01-08 → 2007-04-20
  3. STERLING PROCESS ENGINEERING LTD 1992-11-10 → 2001-01-08
  4. THERMO ENGINEERS LIMITED 1984-05-23 → 1992-11-10
  5. THERMO ENGINEERS (HOLDINGS) LIMITED 1978-12-31 → 1984-05-23
  6. ZYBURA LIMITED 1977-10-21 → 1978-12-31

Audit & accounting basis

Accounting basis
FRS 102
Reporting scope
Standalone (parent only)
Auditor
Kreston Reeves Audit LLP
Audit opinion
Unqualified (clean)
Going concern
Affirmed

“The directors have prepared projections that take into consideration the confirmed order book and multi-year sales pipeline. The forecasts assume that the company will continue to be profitable. At the date of approval of these financial statements, and based on the forecasts prepared, the predictions indicate that the company will remain within its existing facilities. The directors have therefore prepared the financial statements on a going concern basis.”

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

People

4 active · 36 resigned

Name Role Appointed Born Nationality
BAPTIST, Olu Director 2024-03-15 Oct 1978 British
GOZTURK, Emrah Director 2020-04-14 Dec 1977 German
WARD, Stephen Barrie Director 2024-03-15 Jun 1972 British
WILLIAMS, David Andrew Director 2024-03-15 Sep 1982 British
Show 36 resigned officers
Name Role Appointed Resigned
BODDY, Howard Secretary 2006-12-31
SAGANOWSKI, Sandra Joy Secretary 2007-01-01 2018-03-26
TACKLEY, Kathryn Elizabeth Secretary 2018-03-26 2018-08-20
ALDOUS, David John Director 1992-08-06 1999-01-25
ALLMAN, Michael Director 2016-07-04 2022-03-31
ARMITAGE, Christopher Robert Director 1998-11-01 2015-10-30
BEISHON, Daniel Simon Director 2002-10-01 2007-10-26
BLUNN, David Howard Director 1992-05-07 2013-11-25
BODDY, Howard Director 1992-08-06 2006-12-31
BURNS, William Lawrence Director 1994-10-31
COATES, Alan Director 1992-12-01 1998-10-31
DIGGINS, David Reginald Director 1992-05-07 2002-04-04
FORSTER, Ralph Nicholas Director 2018-08-20 2024-03-15
GOLDING, Kenneth Harry Director 2002-10-01 2009-12-31
GOODMAN, Jonathan Andrew Director 1992-05-07
HELEY, Brigid Dagmar Director 1992-05-07
HOWELL, Terence Michael Director 1992-02-17
KREMINSKI, Jan George Director 2018-08-20 2024-03-15
LEAVER, George Edward Henry Director 1992-08-06 1999-09-30
MICHALUK, Peter Gregory Director 2006-01-01 2012-04-10
PAVER, Michael Director 2013-11-25 2018-03-31
PENTLAND, Ian William Director 1992-05-07
PERGUNAS, Alexander Alfred Director 1992-05-07
ROBERTS, Graham John Director 2017-08-14 2020-03-31
SAGANOWSKI, Sandra Joy Director 2007-01-01 2018-04-13
SHIPLEY, Simon Geoffrey Director 2004-10-01 2005-06-30
STOJKOVIC, Darko Director 2013-01-02 2017-01-31
STRICKLAND, Peter James Director 2018-11-15 2020-09-15
VUJICIC, Mile Director 2016-07-04 2022-07-11
WATTS, David Director 2012-05-08 2014-01-31
WEIR, Patrick Desmond Director 2016-07-04 2017-06-30
WILLIAMSON, David Simon Director 2018-08-20 2024-03-15
WILSON, Nicholas James Director 2010-03-01 2017-03-06
WINGROVE, Roger Director 2009-02-09 2013-05-31
WYATT, William Penfold Director 2002-04-04 2010-03-25
ZEOLI, Nicola Director 2024-03-15 2024-12-31

Ownership

Persons with significant control

Name Kind Nature of control Notified Status
Sterling Thermal Technology Midco Limited Corporate entity Shares 75–100%, Voting 75–100%, Appoints directors 2016-04-06 Active

Filing timeline

Last 20 of 206 total filings

Date Type Category Description
2026-04-07 CS01 confirmation-statement Confirmation statement with updates PDF
2026-04-02 RP01AP01 officers Replacement filing of director appointment with name PDF
2025-12-18 AA accounts Accounts with accounts type full PDF
2025-02-24 CS01 confirmation-statement Confirmation statement with no updates PDF
2025-01-13 TM01 officers Termination director company with name termination date PDF
2024-10-28 AA accounts Accounts with accounts type full
2024-05-16 MR01 mortgage Mortgage create with deed with charge number charge creation date PDF
2024-05-16 MR01 mortgage Mortgage create with deed with charge number charge creation date PDF
2024-04-12 PSC05 persons-with-significant-control Change to a person with significant control PDF
2024-04-12 AD01 address Change registered office address company with date old address new address PDF
2024-03-27 AP01 officers Appoint person director company with name date PDF
2024-03-23 AP01 officers Appoint person director company with name date
2024-03-23 AP01 officers Appoint person director company with name date PDF
2024-03-23 AP01 officers Appoint person director company with name date PDF
2024-03-23 TM01 officers Termination director company with name termination date PDF
2024-03-23 TM01 officers Termination director company with name termination date PDF
2024-03-23 TM01 officers Termination director company with name termination date PDF
2024-03-07 MR04 mortgage Mortgage satisfy charge full PDF
2024-02-29 PSC05 persons-with-significant-control Change to a person with significant control PDF
2024-02-29 MR04 mortgage Mortgage satisfy charge full PDF

Public-record activity

Raw counts from Companies House — last 12–24 months

Filings
3

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