Employers who failed to pay their staff the national minimum wage have been "named and shamed" by the Government as part of a new crackdown.
A total of 25 employers were named, including a hire company, a hairdressers, a hotel and a retail outlet.
Between them, they owe workers more than £43,000 in arrears, and face fines totalling over £21,000.
It is the biggest number of employers publicly named since a new regime was announced last year.
The Government also plans to increase fines, so that an employer underpaying 10 workers could face penalties of up to £200,000.
Business Minister Jenny Willott said: "Paying less than the minimum wage is not only wrong, it's illegal. If employers break the law they need to know that they will face tough consequences.
"Any worker who is entitled to the minimum wage should receive it. If anyone suspects they are not being paid the wage they are legally entitled to they should call the Pay and Work Rights helpline on 0800 917 2368."
TUC general secretary Frances O'Grady said: "It's great that minimum wage crooks are finally getting named and shamed.
"Under-paying your lowest paid staff is immoral and illegal. Employers caught in the act deserve to be fined and have their reputation ruined.
"This should send a clear message that dodging the minimum wage does not pay. All minimum wage cheats should be named and shamed, and HMRC need greater resources to catch even more crooks."
The 25 employers are:
:: Christine Cadden and Nicola Banks of Renaissance, Wirral, neglected to pay £7,310.65 to three workers.
:: Alan King and John King of Arthur Simpson & Co, Bradford, neglected to pay £6,426.12 to a worker.
:: Central Heating Services Ltd, Hampshire, neglected to pay £6,200.28 to four workers.
:: Cargilfield School Ltd, Edinburgh, neglected to pay £3,739.58 to a worker.
:: A2ZEE Construction Ltd, Cramlington, neglected to pay £3,375.51 to 14 workers.
:: Mr and Mrs Balasco of Eugenio, Bristol, neglected to pay £3,037.53 to two workers.
:: Mr and Mrs Hampton of The Wheatsheaf Inn, Cheshire, neglected to pay £2,057.88 to five workers.
:: Steven Stainton of Steven Stainton Joinery, Cumbria, neglected to pay £1,415.82 to a worker.
:: Runbaro Ltd, Swindon, neglected to pay £1,413.88 to a worker.
:: Satwinder Singh Khatter and Tejinder Singh Khatter of The Bath Hotel, Reading, neglected to pay £1,237.79 to two workers.
:: Richard Last of Classic Carpentry, Godalming, neglected to pay £1,236.72 to a worker.
:: We are Mop! Ltd, London, neglected to pay £1,018.05 to two workers.
:: Mrs Sue English of Legends Hairdressers, Colchester, neglected to pay £823.40 to a worker.
:: Saftdwin Ltd, Hampshire, neglected to pay £806.37 to two workers.
:: Master Distribution Ltd, Essex, neglected to pay £718.62 to a worker.
:: Perth Hotels Ltd, Perth, neglected to pay £556.80 to a worker.
:: Bryants Nurseries Ltd, Hertfordshire, neglected to pay £494.07 to a worker.
:: Dove Mill Retail Outlet Ltd, Bolton, neglected to pay £461.84 to a worker.
:: Luigi's Little Italy Ltd, Yorkshire, neglected to pay £281.04 to five workers.
:: CPS SW Ltd, Exmouth, neglected to pay £261.29 to a worker.
:: Mr Gary Calder, Mr Richard Calder and Mr Neil Calder of Avenue Agricultural, Northamptonshire, neglected to pay £256.55 to a worker.
:: Dakal Ltd, Northampton, neglected to pay £252.00 to two workers.
:: Zoom Ltd, Havant, neglected to pay £242.28 to three workers.
:: HSS Hire Service Group Ltd, Manchester, neglected to pay £149.00 to 15 workers.
:: Sun Shack Ltd, Hamilton, neglected to pay £134.35 to eight workers.