Whistleblowing employment tribunal cases — UK data 2017–present

Tribunal Watch indexes 6,175 cases involving whistleblowing claims from UK employment tribunal judgments published on gov.uk since 2017. These cases name 6,231 distinct employers as respondents.

Total cases: 6,175
England & Wales: 5,639
Scotland: 536
Distinct employers: 6,231
Largest single award: £122,426

Top employers — whistleblowing cases

20 ranked by case count

#	Employer	Cases
01	Royal Mail Group Limited	25
02	The Secretary of State for Justice	21
03	Asda Stores Limited	19
04	Mitie Limited	17
05	Tesco Stores Ltd	16
06	Ministry of Defence	13
07	Birmingham City Council	12
08	Network Rail Infrastructure Limited	11
09	The Commissioner of Police of the Metropolis	11
10	Department for Work and Pensions	10
11	Amazon UK Services Limited	8
12	DPD Group UK Limited	8
13	Lewisham & Greenwich NHS Trust	8
14	Transport for London	8
15	Lancashire County Council	7
16	Lidl Great Britain Limited	7
17	London Borough of Newham	7
18	Serco Limited	7
19	Barclays Bank UK plc	6
20	Govia Thameslink Railway Ltd	6

All whistleblowing cases

6175 cases · chronological

Case ref.	Decided	Claimant	Primary respondent	Jurisdiction	Total award
1301101/2019	1 May 2026	Mr A Puiu	Essential Supply Products Limited	England & Wales	—
1303825/2017	1 May 2026	Mr P White	Robert Jones & Agnes Hunt Orthopaedic Hospital NHS Foundation Trust	England & Wales	—
1301921/2016	1 May 2026	Mr S Belfield	Frisby Solicitors Limited c/o Steve Currie	England & Wales	—
1305104/2018	1 May 2026	Mrs N Castanet	Lucton Pierrepont School Education Trust	England & Wales	—
3319921/2019	30 April 2026	Mr C Karayianni	Nationwide Crash Repair Centre Ltd (in administration)	England & Wales	—
3319851/2019	30 April 2026	Dr D Gurdasani	Genome Research Limited	England & Wales	—
3301869/2020	30 April 2026	Mrs B Wright	James Little	England & Wales	—
1304976/2018

Methodology

Cases on this page are identified by first-pass extraction against the locked §4.4 claim-type taxonomy — a judgment enters the whistleblowing caseload if whistleblowingis tagged in its classification output. A single judgment frequently combines multiple claim types, so the same case may appear on more than one claim-type page. Regional splits follow the tribunal's jurisdiction as recorded on gov.uk. Award figures are taken from the remedy section of each judgment where present; cases without a quantified award — because the tribunal only determined liability, or because the remedy hearing is pending — are listed with no award amount. Nothing on this page is legal advice; for any specific matter the gov.uk judgment PDF linked from each case page is the authoritative source.