2016
25 May 2016
Gibson v Pride (c. £2-3m)
(Mobility scooters)
8 September 2016
Merricks v MasterCard
(c. £14bn)
(Retail purchases)
17 July 2018
Road Haulage Association v MAN SE and others
(£c. 2bn)
(Trucks)
18 May 2018
UK Trucks Claim v FCA and others (c. £6 – 14bn) (Trucks)
2018
27 February 2019
Gutmann v First MTR SW Trains and Stagecoach SW Trains (c. £57m) (Travelcards)
27 February 2019
Gutmann v London and SE Railway (c. £36m) (Travelcards)
2019
29 July 2019
Michael O’Higgins FX Class Representative v Barclays Bank and others (c. £2bn) (FX trading)
11 December 2019
Phillip Evans v Barclays Bank and others
(c. £2bn)
(FX trading)
20 February 2020
Mark McLaren v MOL (Europe Africa) Ltd and others
(c. £57 – 115m)
(Shipping services)
2020
15 January 2021
Justin Le Patourel v BT (c. £469m) (Phone landlines)
2021
18 February 2021
Which? v Qualcomm
(c. £482.5m)
(4G chipsets)
11 May 2021
Rachael Kent v Apple (c. £500m – 1.5bn) (App store pricing)
10 June 2021
Boyle & Vermeer v Govia Thameslink
(c. £400m)
(Train pricing)
29 July 2021
Elizabeth Helen Coll v Alphabet
(c. £13.6bn)
(Play Store pricing)
1 November 2021
Home Insurance Consumer Action v CompareTheMarket
(Home insurance pricing)
24 November 2021
Gutmann v Govia Thameslink
(c. £73.33m)
(Travelcards)
6 June 2022
CICC II v Visa
(Interchange card fees)
6 June 2022
CICC I v Visa
(Interchange card fees)
6 June 2022
CICC II v Mastercard
(Interchange card fees)
6 June 2022
CICC I v Mastercard
(Interchange card fees)
10 May 2022
Spottiswoode v Nexans France & Others
(Power cables)
21 March 2022
Sciallis v Fender
(Musical instruments)
14 February 2022
Gormsen v Meta
(c. £2.3bn)
(Facebook user data)
2022
17 June 2022
Gutmann v Apple
(c. £853m)
(iPhone batteries)
22 August 2022
Alex Neil v Sony
(c. £5bn)
(PlayStation store pricing)
29 July 2022
BSV v Bittylicious Limited & Others
(c. £10bn)
(Bitcoin)
26 August 2022
Sciallis v Korg
(Musical instruments)
26 August 2022
Sciallis v Roland
(Musical instruments)
16 September 2022
Sciallis v Yamaha
(Musical instruments)
Follow-on
Standalone
Opt-in
Opt-out
Withdrawn
Refused but stayed
Certification refused
Certification Granted
Pending certification
£ = alleged damages claimed (where figure is publicly available)
Reset table
Competition class actions filed at CAT*
*as at 3 October 2025
15 November 2022
Hunter v Amazon.com
(c. £539.6m - £875.8m)
(Amazon Featured Offer)
30 November 2022
Ad Tech Collective Action v Alphabet Inc and Others (after the consolidation of the competing applications by Pollack and Arthur) (c. £4.8b - £13.2b)
(Digital advertising)
2023
7 June 2023
Hammond v Amazon.com (c. £1.221b - £1.361b) (Amazon Featured Offer)
21 July 2023
Doug Taylor Class Representative Limited v MotoNovo Finance Limited and Others
(c. £194m)
(Credit brokerage agreements)
21 July 2023
Doug Taylor Class Representative Limited v Black Horse (c. £581m) (Credit brokerage agreements)
21 July 2023
Doug Taylor Class Representative Limited v Santander Consumer UK (c. £156m)
(Credit brokerage agreements)
25 July 2023
Ennis v Apple (c. £630m - £785m) (App store pricing)
1 August 2023
Christine Riefa Class Representative v Apple and Others (c. £494m) (Electronics pricing)
2 August 2023
Professor Carolyn Roberts v Severn Trent (c. £322.5m) (Water practices)
7 September 2023
Nikki Stopford v Alphabet (c. £5.8b) (Online search market)
30 November 2023
Gutmann v Telefonica (c. £3.3b) (Mobile loyalty penalties)
30 November 2023
Gutmann v Hutchison 3G (c. £3.3b) (Mobile loyalty penalties)
30 November 2023
Gutmann v EE Limited (c. £3.3b) (Mobile loyalty penalties)
30 November 2023
Gutmann v Vodafone Limited (c. £3.3b) (Mobile loyalty penalties)
8 December 2023
Professor Carolyn Roberts v United Utilities (c. £141m - £378m) (Water practices)
14 December 2023
Professor Carolyn Roberts v Northumbrian Water (c. £35.2m - £225.1m) (Water practices)
14 December 2023
Professor Carolyn Roberts v Yorkshire Water (c. £150.7m - £390.9m) (Water practices)
15 December 2023
Professor Carolyn Roberts v Anglian Water (c. £69.5m) (Water practices)
Hybrid
Certification initially refused but subsequently granted
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2024
28 February 2024
David Rowntree v the Performing Right Society Limited
(Performing rights royalties)
4 March 2024
Professor Carolyn Roberts v Thames Water
(c. £159.1m)
(Water practices)
29 May 2024
Bulk Mail Claim v International Distribution Services (formerly Royal Mail)
(c. £878.5m)
(Bulk mail delivery service)
5 June 2024
Vicki Shotbolt v Valve
(c. £656m)
(Video game platform)
7 June 2024
BIRA v Amazon
(c. £1.1bn)
(Amazon store practices)
27 June 2024
Andreas Stephan v Amazon
(c. £2.7bn)
(Amazon store practices)
20 June 2024
Waterside Class Limited v Mowi ASA and Others
(c. £71 - £382m)
(Salmon farming)
23 August 2024
Barry Rodger v Google
(c. £1bn)
(Play Store practices)
11 November 2024
Which? v Apple Inc and others
(c. £3b)
(Cloud storage)
3 December 2024
Dr Maria Luisa Stasi v Microsoft and others
(c. £1b)
(Licensing practices)
5 December 2024
Spottiswoode v Airwave Solutions and Motorola Solutions
(c. £650m)
(Airwave services)
2025
16 April 2025
Or Brook Class Representative Limited v Google & others
(c. £5b)
(Search advertising)
2024
27 May 2025
Mr Roger Kaye KC v Alphabet Inc & Others
(c. £15-25b)
(Search advertising)
29 September 2025
Alexander Wolfson v Microsoft
(c. £1.3 - £3.5 bn)
(Licensing practices)