BRITISH TRUST FOR ORNITHOLOGY(THE)

Get an alert when BRITISH TRUST FOR ORNITHOLOGY(THE) files next

Leroy will email you the moment a new filing lands at Companies House — one short note per filing, nothing else.

Next accounts due

2026-12-31 (in 7mo)

Last filed for 2025-03-31

Confirmation statement due

2027-01-15 (in 8mo)

Last made up 2026-01-01

Watchouts

None on the register

Cash

£5M

+20.2% vs 2024

Net assets

£7M

-1.9% vs 2024

Employees

163

+5.2% vs 2024

Profit before tax

—

Period ending 2025-03-31

Net assets

2-year trend · vs Industrials median

BRITISH TRUST FOR ORNITHOLOGY(THE)·Industrials median · n=2875

Accounts

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

Metric	2024-03-31	2025-03-31
Turnover	£1,266,000	£1,189,000
Operating profit	—	—
Profit before tax	—	—
Net profit	£1,487,000	-£307,000
Cash	£4,132,000	£4,967,000
Total assets less current liabilities	£7,352,000	£6,807,000
Net assets	£6,665,000	£6,538,000
Equity	£6,665,000	£6,538,000
Average employees	155	163
Wages	£4,595,000	£5,319,000

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
Net margin		117.5%	-25.8%
Current ratio		2.97x	2.57x

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: Consolidated group
Auditor: Ensors
Audit opinion: Unqualified (clean)
Going concern: Affirmed
“In auditing the group financial statements, we have concluded that the trustees' use of the going concern basis of accounting in the preparation of the financial statements is appropriate.”

Group structure

BRITISH TRUST FOR ORNITHOLOGY(THE) · parent
1. BTO Services Ltd · England & Wales · commercial activities to support the work of The British Trust for Ornithology
2. Porzana Ltd · England & Wales
3. BTO Consulting Ltd · England & Wales

Significant events

“BTO Youth collaborated with RSPB and WWF-UK to organise the second UK Youth in Nature Summit.”
“BTO joined forces with more than 400 organisations for the Restore Nature Now march in London.”
“A new raptor monitoring scheme was launched in Wales.”
“12 of our head-started Curlews returned to East Anglia and attempted to breed.”
“The latest Seabird Monitoring Programme report was published in November 2024.”
“The new BTO website was launched in early summer 2025.”
“BTO Northern Ireland opened its first-ever office in March.”

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

People

14 active · 86 resigned

Name	Role	Appointed	Born	Nationality
BRADFIELD, Simon David	Secretary	2025-05-30	—	—
BUSCALL, Dominic Edward	Director	2024-01-01	Aug 1992	British
COUCHER, Iain Michael	Director	2022-01-01	Aug 1961	British
DAVIES, Zoe Georgina, Professor	Director	2023-01-01	Jun 1978	British
DRESSER, Emma	Director	2023-01-01	Sep 1983	British
DUNNING, Jamie	Director	2026-01-05	Mar 1992	British
LUDHRA, Geeta, Dr	Director	2026-01-02	Oct 1969	British
MARQUIS, Simon John	Director	2020-01-01	May 1953	British
METCALFE, Stephen Jonathan	Director	2025-01-01	Feb 1956	British
MILLER, Jane Elizabeth	Director	2023-01-01	Jun 1963	British,New Zealander
THOMAS, Rachel Clara, Dr	Director	2026-01-07	Sep 1971	British
THORNTON, Emma	Director	2023-01-01	May 2001	British
WILLIS, Stephen Geoffrey, Professor	Director	2024-01-01	Dec 1971	British
ZIFF, Joel Meade	Director	2023-01-01	Jan 1961	British

Show 86 resigned officers

Name	Role	Appointed	Resigned
CADWALLENDER, Thomas Andrew	Secretary	2002-01-01	2003-12-31
CADWALLENDER, Thomas Andrew	Secretary	2002-01-01	2002-01-01
ELVIN, Andrew	Secretary	—	2003-04-30
GREENWOOD, Jeremy John Denis	Secretary	2005-03-01	2006-02-25
GREENWOOD, Jeremy John Denis	Secretary	2003-05-14	2003-11-06
PHILLIPS, Gareth Wyn	Secretary	2003-11-06	2005-02-28
SCOTT, Andrew Thomas	Secretary	2006-02-25	2025-05-30
APPLETON, Graham Frank	Director	1993-01-01	1996-12-31
BAINBRIDGE, Ian Paul, Dr	Director	2016-04-21	2021-12-31
BARCLAY, Fiona	Director	2014-01-01	2021-12-31
BEARHOP, Stuart, Professor	Director	2015-01-01	2018-12-31
BETTON, Keith Findlay	Director	2010-01-01	2013-12-31
BIBBY, Colin Joseph	Director	1998-01-01	2001-12-31
BIBBY, Colin Joseph	Director	—	1992-12-31
BLAKENHAM, Michael John, Viscount	Director	2002-01-01	2005-12-31
BREESE, Dilys Viola	Director	1998-01-01	2001-12-31
BREESE, Dilys Viola	Director	1993-01-01	1996-12-31
BRENCHLEY, Anne, Dr	Director	2005-01-01	2008-12-31
BRIGGS, Barnaby Daniel	Director	2012-01-01	2015-12-31
BRYANT, David Murray	Director	1994-01-01	1997-12-31
BUCKNELL, Neil John	Director	2009-01-01	2014-12-31
CADWALLENDER, Thomas Andrew	Director	2004-01-01	2005-12-31
CADWALLENDER, Thomas Andrew	Director	1997-01-01	2000-12-31
CALLION, John Cragg	Director	1991-12-06	1995-09-21
CAMPBELL, Niall Gordon	Director	2006-01-01	2011-12-31
CASTLE, Ian Charles	Director	2001-01-01	2004-12-31
CASTLE, Ian Charles	Director	1991-12-07	1996-12-31
COKER, David Graeme	Director	2007-01-01	2010-12-31
COKER, David Graeme	Director	1994-01-01	1997-12-31
COX, Robin Anthony Frederick	Director	1991-12-24	1995-12-31
CRESSWELL, Brian Herbert	Director	1999-01-01	2002-12-31
CRESSWELL, William Richard Lawrence, Dr	Director	2003-01-01	2006-12-31
DARLING, Ian Marshall	Director	1995-01-01	1998-12-31
DICKEY, Roger Charles, Lt Col	Director	2014-01-01	2019-12-31
DICKEY, Roger Charles, Lt Col	Director	2009-01-01	2012-12-31
DICKSON, Wendy Eaton	Director	1996-01-01	1999-12-31
DU FEU, Christopher	Director	2003-01-01	2006-12-31
DU FEU, Richard	Director	2022-01-01	2026-01-02
ELKINS, Norman	Director	2000-12-09	2004-12-31
EVANS, Glynne Colin	Director	1995-01-01	1998-12-31
EYRE, John Alton	Director	2003-01-01	2006-12-31
FITZPATRICK, Paul, Dr	Director	2023-01-01	2024-12-31
FLEGG, James John Maitland, Dr	Director	1995-01-01	1998-12-31
FOX, Anthony David, Professor	Director	2013-01-01	2016-12-31
FOX, Anthony David, Professor	Director	2004-01-01	2007-12-31
FURNESS, Robert William, Professor	Director	2011-01-01	2014-12-31
FURNESS, Robert William, Professor	Director	—	1993-12-31
GALSWORTHY, Anthony Charles, Sir	Director	2003-01-01	2006-12-31
GIBBS, Rowland Geoffrey	Director	2004-01-01	2007-12-31
GILL, Jennifer Agnes, Prof	Director	2016-01-01	2022-12-31
GOOZEE, Nicholas Peter	Director	1997-01-01	1998-03-03
GOSLER, Andrew Graham, Revd. Prof.	Director	1994-01-01	1998-12-31
GREEN, George Henry	Director	—	1991-12-31
GUY, Sophie	Director	2020-01-01	2021-12-03
HAMILTON, Rosemary	Director	2008-01-01	2011-12-31
HARDMAN, Ann	Director	1996-01-01	1999-12-31
HARDMAN, Joseph Arthur	Director	—	1994-12-31
HARDY, Anthony Richard	Director	1992-01-12	1995-12-31
HARPER, David George Charles, Dr	Director	1996-01-01	1999-12-31
HARRIS, Michael Philip, Dr	Director	1993-01-01	1996-12-31
HARRIS, Robert John, Dr	Director	2007-01-01	2013-12-31
HARTLEY, Ian Russell, Dr	Director	2008-01-01	2011-12-31
HENDERSON, Andrew Charles Buchanan	Director	2014-01-01	2017-12-31
HENTON, Margaret Patricia	Director	2011-01-01	2014-12-31
HERBER, Keith	Director	1994-01-01	1998-12-31
HODGE, Timothy Neil	Director	2002-01-01	2007-12-31
HOLLIDAY, Frederick George Thomas, Professor Sir	Director	1997-01-01	2001-12-31
HOWARD, Richard Percival	Director	—	1993-12-31
HUDSON, Peter John, Professor	Director	2001-01-01	2002-12-31
HUNTER, Stephen, Dr	Director	2017-03-15	2021-12-31
HUNTER, Stephen, Dr	Director	2004-01-01	2008-12-31
HUNTER, Stephen, Dr	Director	1999-01-01	2002-12-31
HURST, Frances Mary	Director	2013-01-01	2022-12-31
INSLEY, Hugh, Dr	Director	2012-01-01	2015-12-31
INSLEY, Hugh, Dr	Director	2000-01-01	2003-12-31
IRELAND, Philip Letall	Director	—	1992-12-31
JARDINE, David Chisholm	Director	2016-01-01	2019-12-31
JARDINE, David Chisholm	Director	—	1994-12-31
KNOCK, Raymond Alan	Director	1995-01-01	1998-12-31
LEVER, Tresham Christopher Arthur Lindsay, Sir	Director	—	1992-12-31
LLOYD, John Vaughan	Director	2005-01-01	2009-12-31
LYSTER, Rae Lionel Haggard	Director	—	1994-12-31
MABEY, Richard	Director	1999-01-01	1999-05-25
MARTIN, Alan John	Director	2001-01-01	2004-12-31
MARTIN, Alan John	Director	1994-01-01	1999-12-31
MILLS, Christopher Philip Roger, The Viscount	Director	2014-01-01	2017-12-31

Ownership

Persons with significant control

No persons with significant control on record.

Filing timeline

Last 20 of 382 total filings

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

2024-01-23 MA Memorandum articles
2024-01-23 RESOLUTIONS Resolution

Date	Type	Category	Description
2026-01-13	AP01	officers	Appoint person director company with name date	PDF
2026-01-09	AP01	officers	Appoint person director company with name date	PDF
2026-01-09	AP01	officers	Appoint person director company with name date	PDF
2026-01-08	TM01	officers	Termination director company with name termination date	PDF
2026-01-08	TM01	officers	Termination director company with name termination date	PDF
2026-01-05	CS01	confirmation-statement	Confirmation statement with no updates	PDF
2025-10-28	AA	accounts	Accounts with accounts type group
2025-06-04	AP03	officers	Appoint person secretary company with name date	PDF
2025-06-04	TM02	officers	Termination secretary company with name termination date	PDF
2025-01-08	AP01	officers	Appoint person director company with name date	PDF
2025-01-06	CS01	confirmation-statement	Confirmation statement with no updates	PDF
2025-01-06	TM01	officers	Termination director company with name termination date	PDF
2024-12-10	AA	accounts	Accounts with accounts type group
2024-01-23	MA	incorporation	Memorandum articles
2024-01-23	RESOLUTIONS	resolution	Resolution
2024-01-05	CS01	confirmation-statement	Confirmation statement with no updates	PDF
2024-01-05	AP01	officers	Appoint person director company with name date	PDF
2024-01-02	AP01	officers	Appoint person director company with name date	PDF
2024-01-02	TM01	officers	Termination director company with name termination date	PDF
2023-12-08	AA	accounts	Accounts with accounts type group

Public-record activity

Raw counts from Companies House — last 12–24 months

Filings: 9
Capital events: 0
Officers appointed: 4
Officers resigned: 2

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

-6.1%

£1,266,000 £1,189,000
Cash

+20.2%

£4,132,000 £4,967,000
Net assets

-1.9%

£6,665,000 £6,538,000
Employees

+5.2%

155 163
Wages

+15.8%

£4,595,000 £5,319,000

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

Official Companies House page