Rank Company Location Year end Sales £m % annual growth Profit £m Staff Main shareholders
1 INEOSChemicals manufacturer Switzerland / UK Dec 17 *26,862 35.7 *4,891 18,500 Sir Jim Ratcliffe (60%), John Reece (20%), Andy Currie (20%)
2 GreenergyFuel supplier Central London Dec 17 †*15,682 5.5 †*94 793 Brookfield Business Partners (85%), management (15%)
3 SwireConglomerate Central London Dec 17 *10,454 31.3 *1,688 94,235 Swire family (67%), others (33%)
4 John Lewis PartnershipFood and general retailer Central London Jan 18 10,204 1.8 798 84,500 Employees (100%)
5 EG GroupFuel forecourt operator Blackburn Dec 17 *4,516 18.3 *265 10,752 Issa family (50%), TDR Capital (50%)
6 MFGFuel forecourt operator St Albans Dec 17 *4,080 178.7 *177 828 Clayton Dubilier & Rice (>50%), management inc. Alasdair Locke (<50%)
7 Arnold ClarkCar dealer Glasgow Dec 17 *3,931 7.3 *276 11,427 Clark family and trusts (100%)
8 Pentland GroupBrand manager and retailer Central London Dec 17 3,639 24.9 442 20,865 Rubin family (100%)
9 DysonAppliance manufacturer Wiltshire Dec 17 *3,500 40.0 *801 11,750 Sir James Dyson and family (100%)
10 Bestway GroupConglomerate West London Jun 17 *3,293 0.5 *573 25,706 Sir Anwar Pervez and family (88%), management (12%)
11 2 Sisters Food GroupFood producer Birmingham Jul 17 3,289 5.1 159 22,272 Baljinder and Ranjit Boparan (100%)
12 EMRMetal recycler Warrington Dec 17 *3,100 39.2 *191 3,000 Sheppard family (100%)
13 IcelandFrozen food retailer North Wales Mar 18 †2,960 6.0 †154 15,634 Brait (60%), Sir Malcolm Walker and management (40%)
14 Laing O’RourkeEngineering and construction group Dartford Mar 17 2,935 24.7 78 15,273 Ray O’Rourke and Des O’Rourke through Suffolk Partners Corporation (100%)
15 HeathrowAirport Heathrow Dec 17 2,884 2.7 1,760 6,605 Ferrovial (25%), Qatar Investment Authority (20%), CDPG (13%), GIC (11%), CIC (10%), others (21%)
16 Virgin AtlanticAirline and tour operator Crawley Dec 17 2,664 -1.0 91 8,303 Virgin Group (51%), Delta Air Lines (49%)
17 JCBConstruction machinery manufacturer Staffordshire Dec 16 2,621 11.9 221 9,334 Bamford family interests (100%)
18 SpecsaversOptical and hearing aid retailer Guernsey Feb 18 *2,616 15.2 * 32,500 Perkins family and branch co-owners (100%)
19 Marshall GroupConglomerate Cambridge Dec 17 *2,604 15.2 *74 6,211 Sir Michael Marshall, Robert Marshall & family trusts (71%), others (29%)
20 bet365Online bookmaker Stoke-on-Trent Mar 17 2,278 37.8 557 3,835 Coates family (93%), Will Roseff (7%)
21 WestcoastTechnology distributor Reading Dec 17 2,227 16.5 37 1,301 Joe Hemani (100%)
22 The Rigby GroupConglomerate Stratford-upon-Avon Mar 17 2,167 21.2 57 7,265 Sir Peter Rigby and family (100%)
23 Radius Payment SolutionsFleet services provider Crewe Mar 18 *2,095 15.2 *64 1,065 Bill Holmes (44%), Inflexion Private Equity (24%), Roy Sciortino (11%), other management (21%)
24 Thames Water (Kemble)Water services provider Reading Mar 17 2,065 0.9 1,155 4,974 Consortium of investors, including OMERS (18%), BT Pension scheme (13%), others (69%)
25 MaceConstruction project manager Central London Dec 17 *1,972 0.3 *32 4,731 Management (100%)
26 Shop DirectInternet retailer Liverpool Jun 17 1,930 5.7 236 3,869 Sir David Barclay and Sir Frederick Barclay family settlements (100%)
27 RubixIndustrial parts distributor Central London Dec 17 *1,913 13.2 *109 8,330 Advent International, management
28 ArcadiaFashion retailer Central London Aug 17 1,905 -5.6 198 23,424 Lady Tina Green and family, Lloyds Banking Group
29 Home BargainsValue retailer Liverpool Jun 17 1,869 16.6 209 18,048 Tom Morris and family (100%)
30 Healthcare at HomeHome healthcare provider Burton upon Trent Oct 17 1,813 10.7 19 1,706 Vitruvian Partners (73%), Hutton Collins (17%), management (10%)
31 ISGConstruction services provider Central London Dec 17 1,709 8.8 45 2,659 Cathexis (100%)
32 FinastraFinancial software provider Central London May 17 *1,653 147.9 * 10,000 Vista Equity Partners (100%)
33 Stemcor Global HoldingsSteel trader Central London Dec 17 1,651 13.5 38 475 Apollo Global Management (32%), Monarch (25%), others (43%)
34 Mott MacDonaldEngineering, management & development Croydon Dec 17 *1,549 10.1 *62 14,730 Employees (88%), trust (12%)
35 WatesConstruction contractor Surrey Dec 17 1,530 6.1 27 3,972 Wates family (100%)
36 WilkoValue retailer Nottinghamshire Jan 17 1,513 3.3 49 11,243 Wilkinson family (100%)
37 ClarksShoe retailer and wholesaler Somerset Feb 18 †1,511 -8.7 †96 13,897 Clark family (84%), employees and institutions (16%)
38 ArupDesign and engineering consultancy Central London Mar 17 1,510 21.7 198 13,346 Employees through trusts (100%)
39 Willmott DixonConstruction contractor Hertfordshire Dec 17 1,480 21.0 20 2,062 Family & management (100%)
40 Bloor InvestmentsBuilder and motorcycle maker Derbyshire Jun 17 1,442 25.5 215 3,230 John Bloor (100%)
41 Pension Insurance CorporationBulk annuity insurer Central London Dec 17 1,432 25.8 432 154 Renet Investments, JC Flowers, CVC Capital Partners, Legend Holdings
42 New LookFashion retailer Central London Mar 18 1,348 -7.3 -34 17,943 Brait (90%), Tom Singh and other management (10%)
43 Anglian Water GroupWater services provider Cambridgeshire Mar 17 1,348 10.6 672 4,726 CPPIB (32.9%), CFSGAM (32.3%), IFM Investors (19.8%), Dalmore Capital and GLIL Infrastructure (15%)
44 A.F. Blakemore & SonRetail, wholesale and distribution West Midlands Apr 17 1,300 1.4 17 7,735 Blakemore family (100%)
45 JCT600Car dealer Bradford Dec 17 *1,251 2.0 *31 2,185 Jack Tordoff (100%)
46 ListersAutomotive retailer Stratford-upon-Avon Mar 18 *1,230 0.4 *20 2,355 Bradshaw family (50%), Lister family (50%)
47 RontecRoadside retailer Watford Sep 17 1,230 23.1 39 298 Ronson Family Trusts / Charitable Foundation (100%)
48 Bibby Line GroupConglomerate Liverpool Dec 16 1,203 -16.5 14 4,934 Sir Michael Bibby and family (89%), management and others (11%)
49 British SteelIron and steel maker Scunthorpe Mar 17 †1,198 119787925481.4 n/a 4,978 Greybull Capital (100%)
50 Virgin TrainsTrain operator Central London Mar 17 1,141 6.4 66 3,272 Virgin Group Holdings (51%), Stagecoach (49%)
51 W&R BarnettConglomerate Belfast Jul 17 1,113 17.7 64 1,485 Robert Barnett and family (100%)
52 Reed Specialist RecruitmentRecruiter Central London Jun 17 1,068 7.6 14 2,101 Reed family (100%)
53 MatalanValue retailer Liverpool Feb 18 *1,063 2.4 *105 13,579 Hargreaves family (100%)
54 William Grant & SonsSpirits distiller Banffshire Dec 16 1,062 20.3 270 2,113 Grant and Gordon families
55 Lamex Food GroupFood importer and exporter Hertfordshire Mar 17 1,061 28.6 21 438 Phil Wallace & family trusts (24%), Steve Anderson (24%), Colin Dicker & family trusts (16%), others (36%)
56 Greenhous GroupCar and van dealer Shropshire Dec 17 1,052 3.8 5 1,049 Derek Passant (52%), Kerry Finnon (46%), Mike Pawson (2%)
57 Bourne LeisureCaravan park operator Hertfordshire Dec 17 *1,035 3.9 *247 13,721 Peter Harris, families of the late John Cook and David Allen, management
58 OCS GroupFacilities services provider Gatwick Jan 18 1,025 1.6 43 82,623 Goodliffe family (100%)
59 M Group ServicesInfrastructure services provider Stevenage Mar 18 *1,025 15.2 *56 6,885 First Reserve (80%), management (20%)
60 Yorkshire Water (Kelda)Water services provider Bradford Mar 17 1,004 2.8 575 3,674 Corsair Infrastructure, GIC, Pan-European Infrastructure Fund, SAS Trustee Corp
61 Samworth BrothersFood producer Leicestershire Dec 16 991 8.8 89 8,550 Samworth family trusts (100%)
62 Harrods GroupDepartment store operator Central London Jan 17 979 16.6 298 4,607 Qatar Holding (100%)
63 River IslandFashion retailer West London Dec 16 †952 2.1 †164 11,244 Bernard Lewis and family (100%)
64 ArqivaCommunications services provider Central London Jun 17 944 6.7 468 2,100 Canada Pension Plan Investment Board (48%), Macquarie (25%), other investors (27%)
65 Bowmer & KirklandConstruction contractor Derbyshire Aug 17 928 -0.3 63 1,319 Kirkland family and family trusts
66 KCA DEUTAG GroupDrilling and engineering contractor Aberdeen Dec 17 904 -3.4 171 6,117 Pamplona Capital, Al Qahtani Investments, BlackRock, Golden Tree, EIG Partners, other funds
67 PaysafeOnline payment services East London Dec 17 *893 29.5 *236 2,553 Blackstone, CVC, management
68 RESRenewable energy developer Hertfordshire Oct 17 886 16.7 103 1,602 McAlpine Trusts (100%)
69 Pret A MangerSandwich shop operator Central London Dec 17 *879 13.2 n/a 12,000 JAB Holdings (100%)
70 Aston MartinSports car maker Warwickshire Dec 17 876 47.6 207 1,753 Institutional investors (95%), Daimler AG (5%)
71 McLaren GroupAutomotive technology group Woking, Surrey Dec 17 871 -3.0 45 3,178 Bahrain Mumtalakat Holding Company (56%), TAG Group (14%), Nidala (10%), other investors (20%)
72 Sir Robert McAlpineConstruction contractor Hertfordshire Oct 16 870 8.7 8 2,199 McAlpine family (100%)
73 Cordant GroupManpower services provider West London Dec 17 *851 2.8 *9 38,159 Ullmann family (98%), employee benefit trust (2%)
74 Nando’sRestaurant operator Southwest London Feb 17 848 16.1 142 16,625 Dick Enthoven and family (100%)
75 WSHHospitality services provider Reading Dec 17 *828 13.2 *65 16,270 Alastair Storey and family (80%), Intermediate Capital (12%), management (8%)
76 Ovo EnergyEnergy supplier Bristol Dec 17 *822 14.6 *18 1,439 Stephen Fitzpatrick (75%), Mayfair Private Equity (17%), others (8%)
77 MorsonEngineering recruitment consultancy Manchester Dec 17 *814 1.0 *25 1,615 Ged Mason and family (85%), Paul Gilmour (7.5%), Kevin Gorton (7.5%)
78 Southern WaterWater services provider West Sussex Mar 17 810 0.7 504 2,120 JP Morgan (40%), UBS Global (22%), Hermes (21%), others (17%)
79 Pertemps Network GroupRecruitment consultancy Warwickshire Dec 17 *805 8.4 *21 1,700 Management and employees (53%), LDC (25%), Tim Watts (22%)
80 Langley HoldingsEngineering equipment maker Nottinghamshire Dec 17 792 7.3 110 4,332 Tony Langley (100%)
81 Vue InternationalCinema operator West London Nov 17 790 2.3 125 9,714 Canadian pension funds AIMCo and OMERS (74.2%), management (25.8%)
82 Park’s Motor GroupCar dealer Lanarkshire Mar 17 777 41.0 29 1,847 Douglas Park and family (100%)
83 MotoMotorway services operator Bedfordshire Dec 17 776 -0.4 104 5,165 Universities Superannuation Scheme (60%), CVC (40%)
84 Domestic & GeneralWarranty provider Wimbledon Mar 18 *771 7.6 *97 2,823 CVC Capital Partners (>50%), management (<50%)
85 GatwickAirport Gatwick Mar 18 *764 5.4 *411 3,068 Global Infrastructure Partners (42%), Future Fund Board of Guardians (17%), others (41%)
86 The RangeValue retailer Plymouth Jan 17 761 15.1 90 8,846 Sarah Dawson and family (100%)
87 Henderson GroupFood wholesaler and retailer County Antrim Dec 17 759 8.5 39 3,387 Geoffrey Agnew (12%), Martin Agnew (12%), Ardbarron Trust (76%)
88 Unipart GroupManufacturing, logistics & consultancy Oxford Dec 17 758 1.3 33 6,049 Management and staff (52%), pension schemes (48%)
89 Dhamecha FoodsCash and carry wholesaler Wembley Mar 18 *753 7.1 *16 639 Dhamecha family (100%)
90 John Clark Motor GroupCar dealer Aberdeen Dec 17 742 5.5 11 1,337 John Clark and family (100%)
91 EdringtonWhisky and rum distiller Glasgow Mar 18 739 5.4 220 2,255 The Robertson Trust (77%), employees, former employees (23%)
92 The Hut GroupOnline retailer Manchester Dec 17 736 46.7 69 3,222 Matt & Jodie Moulding (20%), institutional investors (60%), employees (7%), others (13%)
93 FircroftTechnical recruitment consultancy Warrington Aug 17 732 11.6 10 642 Johnson family and management (66%), Equistone Partners (34%)
94 Hibu GroupDigital marketing services provider Reading Mar 17 732 -8.1 193 4,129 JP Morgan, Credit Suisse, Goldman Sachs, Credit Agricole, RBS and other funds (100%)
95 TrailfindersTravel organiser West London Feb 17 728 6.7 13 1,095 Mike Gooley (100%)
96 Welcome BreakMotorway services operator Milton Keynes Jan 18 *723 8.9 *66 4,951 NIBC European Infrastructure Fund (55%), Arjun Infrastructure Partners (45%)
97 Doncasters GroupEngineering components maker Burton upon Trent Dec 17 *722 10.3 *95 4,200 Dubai International Capital (98%), management (2%)
98 Peel Ports GroupPort services provider Liverpool Mar 18 *716 11.2 *239 2,672 John Whittaker and family (50.1%), DWS Group (49.9%)
99 Argent FoodsFood supplier Central London Dec 17 *709 5.4 *11 1,511 David Gray (63%), management (37%)
100 Stoneacre Motor GroupCar dealer Doncaster Apr 17 †708 26.2 †14 2,185 Shaun Foweather (44%), Nigel Wood (44%), others (12%)

* supplied by company   † annualised figure