Rank Company Location Year end % annual profit growth Latest profits £000 Latest sales £000 Staff Comment
1 DreamsBed manufacturer and retailer High Wycombe Dec 17 166.89% *34,505 *290,288 1,874 Its spin-off company Hyde & Sleep is boxer Anthony Joshua's official sleep partner
2 MFGFuel forecourt operator St Albans Dec 16 135.59% 58,486 1,464,061 61 A series of acquisitions lifted sales six-fold to £1.5bn in the three years to 2016
3 Morrisroe GroupGroundworks and construction Borehamwood, Herts Oct 16 132.30% 14,280 162,795 177 Is helping to build Tottenham Hotspur's new football stadium
4 Forest HolidaysHoliday park operator Moira, Derbyshire Mar 17 130.50% †7,250 †35,520 635 Offers a ‘love-nest’ forest cabin with hot tub, wood burner and sunken bath
5 Big Motoring WorldCar dealer Addington, Kent Feb 17 128.19% 7,154 174,624 171 Has sold more than 145,000 cars since it was founded in 1986
6 Walter WatsonSteel fabricator Co Down Dec 16 124.56% 6,226 55,348 247 Provided steel for Belfast’s Waterfront Hall conference centre
7 4mostCredit risk analytics consultancy Central London Sep 17 115.36% *6,600 *19,592 142 Founder Mark Sisson began his career selling mainframe computers to banks
8 Apogee CorporationDocument handling services provider Maidstone Dec 16 108.13% 12,468 112,673 424 Has been the official print partner of the London Marathon since 2016
9 McGaviganTechnical plastics manufacturer Glasgow Dec 16 106.75% 4,481 22,744 338 Has opened regional offices in Japan and Germany to support further export growth
10 blu-3Infrastructure & engineering services Aylesford, Kent Mar 17 106.61% 5,349 93,461 127 Is building a £225m data centre in Dublin powered entirely by renewable energy
11 World of BooksBooks and media entertainment reseller West Sussex Oct 17 105.85% *4,872 *57,360 592 Reuses and recycles over 70m books every year, saving 26,000 tonnes from landfill
12 Lioncourt HomesHousebuilder Worcester Mar 17 104.62% 9,526 56,217 71 Completed the sale of 290 homes in 2017, five times more than in 2014
13 Readie ConstructionConstruction contractor Romford Mar 17 103.57% 6,004 104,923 90 Secured a £37m contract to build a car parts factory, its largest to date
14 HG ConstructionConstruction services Hitchin, Hertfordshire Dec 16 103.43% 4,807 71,861 58 Is developing a 432-bed student accommodation block in Euston, London
15 Llanmoor HomesHousebuilder Llantrisant, south Wales Jan 17 103.41% 5,317 32,907 67 Last year, it completed on a record 159 properties, selling three-quarters to first-time buyers
16 GrundonWaste manager Oxfordshire Sep 16 102.62% 5,598 108,557 768 Its waste plant near Heathrow generates enough renewable energy to power 50,000 homes
17 Carpenter & PatersonPipe support manufacturer Powys Dec 16 98.77% 4,426 23,141 341 Its products support and protect pipelines from earthquakes and harsh weather
18 OptalPayment services provider Central London Dec 16 97.24% 12,207 129,061 38 Offers payment processing in 34 different currencies
19 TTP GroupR&D consultancy Hertfordshire Mar 17 95.37% 10,790 68,416 413 Made a £4.1m profit on the sale of its printer technology company, Meteor Inkjet
20 VanaramaVan leasing broker Hemel Hempstead Dec 16 92.41% 4,527 39,131 151 Its catchy adverts are broadcast on Sky Sports, BT Sport and Dave
21 Loch DuartSalmon farmer Sutherland Mar 17 90.77% 8,819 42,503 109 Is the first fish farmer in the northern hemisphere to use forensic analysis to prevent fraud
22 The Hillhouse Quarry GroupQuarry operator Ayrshire Mar 17 88.34% 8,748 52,895 178 Its quarry can produce more than 1m tons of basalt-based products a year
23 TWMAEnvironmental services provider Aberdeen Dec 16 87.47% 6,206 49,245 312 Targeting sales of £200m after being acquired by private equity firm Buckthorn Partners in May last year
24 LeachStructural steel engineer Lancashire Mar 17 87.04% 3,591 21,696 136 Designs and builds commercial steel structures that range between 100 and 2,000 tons
25 MCS GroupConstruction contractor Warwickshire Dec 16 86.62% 4,265 82,899 44 Has built new outlets for Next, Costa Coffee and Starbucks
26 SudlowsIT & facilities maintenance services Manchester Oct 16 86.34% 4,129 48,831 176 Has provided mechanical and electrical engineering services for more than a century
27 PenCarriePromotional clothing wholesaler Sowton, Exeter Dec 16 85.06% †5,411 †60,316 191 Handles 94 clothing brands from Craghoppers to BabyBugz
28 Fred Champion GroupGroundworks contractor Liskeard, Cornwall Sep 16 83.78% 7,317 45,729 218 One of the contractors providing groundworks for new county town of Sherford in Devon
29 West One TechnologyMobile phone refurbisher Waltham Abbey, Essex Oct 16 83.09% 3,572 49,467 175 Says it has Europe's largest remanufacturing facility for electronic devices
30 ActivpayrollAccountancy service provider Aberdeen Mar 17 82.11% 3,781 13,134 100 Its 1,000 clients in more than 140 countries include Tesla and Skyscanner
31 C G Fry & SonHousebuilder Dorchester Dec 16 80.97% 4,343 60,443 144 Has built more than 600 homes in Prince Charles’s model town of Poundbury
32 Ahmad TeaTea maker Hampshire Dec 16 79.76% 3,765 58,006 303 Says it is among the top five international tea brands worldwide
33 Net World SportsOnline sports goods retailer Wrexham Sep 17 79.17% *5,097 *18,230 87 Plans to provide 24/7 customer service to serve its growing Asia-Pacific market
34 NG BaileyMechanical, electrical contractor West Yorkshire Feb 17 78.78% 12,000 500,300 2,776 Last year, it completed the installation of a £97m supercomputer for the Met Office
35 Network TelecomBusiness telecom services Telford Dec 17 78.18% *3,092 *11,228 92 Provides scripts and samples so companies can produce their own on-hold music
36 Mind GymCorporate learning provider Central London Mar 17 77.68% 4,614 30,613 195 Delivers 500 bite-size training courses every week to improve work performance
37 Elta GroupAir movement equipment manufacturer West Midlands Mar 17 76.58% 3,573 109,816 775 Its 19 companies operate across four continents
38 CauntonStructural steelwork contractor Nottingham Jan 17 76.20% 7,060 58,736 247 Has its own accredited academy for training welders and fabricators
39 Click TravelCorporate travel management Birmingham Mar 17 75.75% 3,444 163,871 164 Clients such as Red Bull and TalkTalk book and manage travel using its online booking tool
40 MVFCustomer generation services North London Mar 17 75.56% 10,681 54,257 319 Acquired US technology news brand Tech.co in January
41 CH&Co GroupCatering group Reading Dec 16 75.25% 6,366 191,231 4,688 Its Brookwood catering business serves 45,000 meals a day in 90 schools
42 Wykes EngineeringManufacturing engineer Northamptonshire Aug 16 74.68% 3,764 33,915 73 Its waste-to-energy power plant generates around 54,000 megawatt hours of electricity a year
43 EdenhouseIT services provider Warwickshire Mar 17 73.95% 8,788 40,726 234 Says it has completed 800 SAP software projects to date
44 OCL FacadesBuilding facade contractor Laindon, Essex Jun 17 73.43% 5,423 40,403 38 Installed panels that are 200 times tougher than glass at Redbridge College
45 HH GlobalMarketing services provider Leatherhead Mar 17 73.23% 11,255 266,826 827 Its clients include Google, Lloyds Banking Group and Bayer
46 GymsharkOnline sportswear retailer Solihull Jul 17 73.18% 8,150 40,525 100 Has more than 20m social media followers in more than 130 countries
47 END.Online menswear retailer Newcastle upon Tyne Mar 17 73.16% 16,189 69,627 192 Is planning to open a flagship store in London's Soho this year
48 JRL GroupConstruction contractor North London Dec 16 73.03% 17,507 288,500 706 Its services include demolition, groundworks, concrete frames and plant hire
49 HKS RetailFuel forecourt operator Leicester May 17 72.12% 6,447 221,271 573 Operates from more than 70 forecourts and partners with brands including Subway and Greggs
50 Omar GroupPark home manufacturer Suffolk Apr 17 71.61% 5,500 39,375 375 Makes 650 holiday homes a year at factories in Hull and Suffolk
51 HiBBathroom mirror manufacturer North London Jun 17 71.44% 4,216 21,572 86 Its bathroom mirrors and cabinets feature LED lighting, heated pads and colour changing technology
52 WatchfinderPre-owned watch retailer Maidstone, Kent Mar 17 71.05% 5,534 86,653 157 Sells a watch every 20 minutes, each worth an average of over £5,000
53 Erith GroupDemolition contractor Erith, Kent Sep 17 70.74% 10,568 152,870 582 Demolished Killingholme power station using explosives in November last year
54 Turtle BayCaribbean restaurant chain Bristol Feb 17 70.33% 11,990 63,693 1,390 Has put goat curry and jerk chicken on the menu in 42 UK outlets
55 The Qdos GroupInsurance broker & consultancy Leicestershire Dec 17 69.64% *7,057 *13,716 70 Is targeting growth in Europe as part of its plans for overseas expansion
56 PureGymGym operator Leeds Dec 17 69.17% *37,062 *198,032 833 Acquired by US private equity firm Leonard Green last year, in a deal valuing it at more than £600m
57 Integral PowertrainAutomotive engineer Bletchley Dec 16 68.22% 8,413 20,489 96 Develops powertrains for new generation electric cars
58 Optima ContractingGlass partitioning manufacturer High Wycombe Jan 17 67.70% 5,316 55,310 340 Designed and installed glass partitions for Bloomberg's European headquarters in London
59 LignaciteConcrete block manufacturer Suffolk Dec 16 66.02% 4,307 27,811 74 Manufactures a carbon negative concrete block
60 Burns Pet NutritionPet food maker Carmarthenshire Jul 16 65.89% 3,872 25,912 107 Its pet food recipes include ingredients grown on its organic farm in west Wales
61 Miller HomesHousebuilder Edinburgh Dec 16 65.83% 102,600 565,300 740 Acquired by Bridgepoint in October last year in a £655m deal
62 MJM GroupSpecialist joiner Newry, Co Down Dec 16 64.82% 7,063 61,503 215 Says it has provided fit-out services to 49% of all cruise ships globally
63 CardzoneCard retailer Nottinghamshire Jul 17 64.76% 3,048 25,193 502 In 15 years it has expanded to operate more than 100 card and gift stores across the UK
64 Media 10Events & publishing Essex Feb 17 62.99% 4,290 39,056 264 Says that one in 55 people in the UK will attend one of its shows this year
65 NatracareHygiene products brand Bristol Mar 17 62.73% 4,541 14,464 15 Says it produced the world's first certified organic cotton tampons
66 UltimaKitchen manufacturer Pontefract May 17 62.50% 9,380 39,342 271 All its kitchens are manufactured at its factory in Pontefract, West Yorkshire
67 SymphonyFurniture supplier Barnsley Dec 16 62.47% 18,747 198,970 1,569 Has 750,000 sq ft of manufacturing and warehousing capacity in Barnsley and Rotherham
68 Pret A MangerSandwich shop operator Central London Dec 16 61.77% 55,829 776,195 10,426 Opened its first store in Singapore last year, adding to its 440 outlets in six countries
69 Bew Electrical DistributorsElectrical goods wholesaler Chelmsford Apr 17 61.53% 4,196 71,924 259 Is targeting sales of £100m by 2021
70 Titan AirwaysAirline Stansted Mar 17 61.03% 9,608 89,469 277 Two fully-crewed aircraft on standby at all times means it can launch flights within an hour of booking
71 KampaCamping gear supplier Essex Dec 16 60.97% 4,305 23,333 24 Its patented AirFrame tents can be set up in less than five minutes
72 Story HomesHousebuilder Carlisle Mar 17 60.96% 26,178 173,841 354 Completed 807 new homes in 2017, up 43% on the previous year
73 BennimanConstruction services Bromsgrove Dec 16 60.94% 3,717 47,150 37 Has worked on developments for Birmingham Airport and West Bromwich Albion FC
74 OptilanTelecoms systems integrator Coventry Dec 16 60.83% 5,512 44,197 187 Its security sensors help to guard oil and gas installations in the Middle East, Russia and Turkey
75 Highway Care GroupRoad safety product manufacturer Kent Dec 16 60.53% 6,344 27,358 82 Supplies steel crash cushions and barrier guards designed to save lives on roads
76 RockfordElectrical component manufacturer Suffolk Dec 16 60.29% 3,281 16,087 283 Its electrical components and systems are used by aerospace and defence firms in the EU and Middle East
77 Pinewood StudiosFilm studio Buckinghamshire Mar 17 59.60% 22,081 98,348 278 Its studios were used to produce hit movies including Wonder Woman and T2 Trainspotting
78 AdaptiveFinancial software developer Central London Jun 17 59.52% *4,127 *15,198 116 Increased staff from five to 116 in under five years
79 AlphaSightsBusiness information services Central London Dec 16 59.40% 22,845 66,524 320 Thirty-seven languages are spoken across its eight international offices
80 Roc TechnologiesIT services provider Newbury Mar 17 59.17% 3,470 24,535 58 Has a joint venture with Oxford University academics to improve performance of IT projects
81 Matchroom SportSporting events promoter Essex Jun 17 58.84% 13,488 100,247 74 Covers major sporting events and distributes its footage to more than 130 countries worldwide
82 WagamamaNoodle bar operator Central London Apr 17 57.73% 21,326 266,109 5,078 Launched an 11-dish vegan menu at its Japanese-inspired restaurants in October
83 D R CollinSeafood supplier Berwickshire Apr 17 57.61% 3,639 43,915 160 Is a worldwide exporter of live shellfish, including lobster, crab and langoustines
84 Alba PowerTurbine maintenance services Aberdeenshire Dec 16 57.51% 3,743 17,789 57 Has customers in 16 countries, including the US, Canada and the Middle East
85 GtechAppliance manufacturer Worcester Nov 17 57.32% *18,208 *121,449 206 Has sold more than 22m domestic appliances in 19 countries
86 Cooper & TurnerIndustrial fastener manufacturer Sheffield Feb 17 57.08% 9,151 52,566 376 In August last year was acquired by US PE firm Watermill Group for an undisclosed sum
87 The Hut GroupOnline retailer Manchester Dec 16 56.78% 30,396 501,376 1,853 Last year it acquired cosmetics brand Illamasqua and beauty subscription service Glossybox
88 SC GroupAll-terrain vehicle manufacturer Devon Aug 16 56.41% 3,760 43,086 207 Received approval this year to supply the New Zealand army with special operations vehicles
89 Exponential-eNetwork service provider Central London Jan 17 56.40% 10,240 97,435 398 Its clients include Channel 4, Fulham FC and The Montcalm luxury hotels
90 ChildrensalonChildrenswear retailer Tunbridge Wells Dec 16 56.32% 14,731 60,984 235 Its customer service staff speak more than 30 languages
91 Nexus UnderwritingUnderwriter Central London Dec 17 56.30% *10,023 *23,932 125 Made four strategic acquisitions last year including trade credit insurer equinox
92 BullionByPostOnline gold dealer Birmingham Apr 17 56.27% 4,187 125,122 40 Sold £10m worth of bullion when Donald Trump won the US election, 20 times its typical daily sales
93 TPPHealthcare software developer Leeds Mar 17 56.23% 27,185 55,846 207 Its clinical software holds more than 44m UK patient records
94 Wasdell GroupOutsourced pharmaceutical services Swindon Apr 17 55.50% 5,712 36,007 612 Has invested €30m in a purpose-built pharmaceutical facility in Dundalk, Ireland
95 Longleat EnterprisesTourist sites operator Wiltshire Dec 16 55.33% 3,533 31,935 707 Its 9,000-acre safari park is home to 500 animals
96 Shaylor GroupConstruction contractor Aldridge, West Midlands Sep 16 55.22% 3,717 100,841 197 Carried out the conversion into apartments of Cadbury’s former headquarters in Bournville
97 Bennett HomesHousebuilder Suffolk Dec 16 55.01% 4,041 18,726 43 Offers rent-free accommodation to customers who have sold their home and are waiting to move
98 Evolution FundingMotor finance intermediary Chesterfield Dec 17 54.81% *7,860 *100,000 280 Invested £1m in lighting and rigging hire specialist Nexus Dry Hire last year, taking a 50% stake
99 Beautybay.comOnline cosmetics retailer Manchester Dec 16 53.76% 4,216 51,059 117 Stocks more than 10,000 beauty products ranging from eyebrow pomade to glycolic acid toner
100 Victorian PlumbingOnline bathroom retailer Merseyside Sep 17 52.69% *5,629 *100,579 240 Attracts more than 3m monthly visits to its website