The government today unveiled the first group of high-growth companies to be included in its Future Fifty programme that it hopes will help firms expand and float in the UK.

Tech and media firms dominate the 25 strong list, with the majority based in London. The year-long rolling programme will give members tailored advice and support in a bid to boost the UK economy. The full Future Fifty list is below:

Zoopla

The UK’s number two online property group, Zoopla owns and operates property sites that attract over 40 million visitors each month and its flagship site carries current value estimates for all 26.3 million residential properties in the UK.

Based in Southwark, the company was founded in 2007 by LoveFilm founder Alex Chesterman and former LoveFilm executive Simon Kain. There is speculation that Zoopla may be the next big London tech firm to file for a stock market flotation, which could value it at up to £1 billion, and last month Zoopla revealed it has hired Credit Suisse to help it look at "strategic opportunities".

Skyscanner

Edinburgh-based Skyscanner lets people compare prices of flights, hotels and car rentals. Three IT workers founded the company in 2001 after they had trouble booking a ski holiday. Last year revenues jumped 65% to £33.5m, with traffic to the website reaching 30 million visits a month.

Sequoia Capital, the Silicon Valley venture capital firm that first backed Apple, recently took a stake in Skyscanner that valued it at $800 million. Sequoia chairman Sir Michael Moritz called Skyscanner “one of the best technology companies ever to come out of Europe”.

onefinestay

Like a luxury AirBnB, onefinestay lets travellers stay in a carefully curated collection of homes while the owners are away, with hotel benefits such as toiletries and towels included.

The Farringdon-based company, founded in 2009, has a portfolio of homes worth over $2.5bn across London and New York and recently expanded its concept to Paris and Los Angeles. The company raised $12.2 million during its last funding round in June 2012.

Omnifone

One of the early pioneers of mobile music streaming, Omnifone provides cloud-based white label jukebox services for other businesses. The company runs products in 34 markets for partners including Sony, BlackBerry and HP.

Founded in 2003, the company is headquartered in Hammersmith’s Island Studios, the former home of Island Records. Omnifone’s turnover last year was £29m, up from £11.7m in 2011.

Neomobile

Headquartered in Rome, but with offices in London, Neomobile provides mobile services such as messaging, dating, games, apps and music for network providers in over 70 countries.

Founded in 2007, the company also provides mobile payment technology and users spent €250m through Neomobile’s services in 2012.

Mind Candy

Often seen as the poster child of London’s Silicon Roundabout scene, Mind Candy is the games and entertainment studio behind hit kids game Moshi Monsters.

The company was founded in 2004 by colourful entrepreneur Michael Acton Smith, the founder of online gadget retailer Firebox. Mind Candy recently revealed that Moshi Monsters has become the most licensed property in the UK and the firm is currently working on a new entertainment property to follow it up with.

Made.com

Backed by lastminute.com co-founder Brent Hoberman, Made.com offers designer furniture at up to a 70% discount on high street prices.

The Notting Hill-based firm minimises overheads by selling online, grouping orders of the same item and not owning its factories, instead commissioning to meet orders. Last year the firm increased sales by over 200%, to the low tens of millions of pounds.

Lyst

The Pinterest of e-commerce, Lyst allows people to create a personalised feed of products by following brands or shops they like. The London-based company launched in 2010 and counts early LoveFilm backers DFJ Espirit and Silicon Valley venture capital firm Accel Partners as investors.

Last year the service was reportedly generating over $1 million in sales a month and earlier this year it launched its first mobile app for iPhone.

Just Eat

An online takeaway service that lets users order food from over 18,000 local restaurants in the UK. Founded in Denmark in 2000 but now headquartered in London, the firm’s UK operation saw profits more than quadruple to £9 million last year thanks to an 87% jump in orders.

The firm, which operates in 13 countries, is often mentioned as one of the UK tech firms most likely to file for a stock market flotation next.

HouseTrip

Another AirBnB like service HouseTrip lets users rent out their homes online and travellers stay in them. 27-year-old chief executive Arnaud Bertrand founded the Tottenham Court Road-based firm in 2009.

HouseTrip currently offers 250,000 properties in 153 countries and last year processed £48m worth of bookings. Earlier this year Michael van Swaaij, former chief executive of Skype and European head of eBay, was appointed chairman.

Green Man Gaming

This London-based online games retailer is pioneering digital trade-in, letting users return downloaded games in return for credit by junking activation codes. The site was launched 2010 and currently has a catalogue of over 2,500 titles.

Farfetch

Farfetch lets shoppers buy from more than 250 hand-picked fashion boutiques around the world.

The London-based business was founded José Neves, the man behind Savile Row boutique B-Store. The company has raised a total of $24 million in funding and turnover in 2011 was £4.4m.

Box

One of Silicon Valley’s fastest growing companies, Box is aiming to be the Dropbox for business. The start-up provides online file sharing and Cloud content management services for customers including Procter & Gamble and Heathrow Airport.

The company, founded in 2005, recently opened an office in Mayfair and has been valued at $1.2 billion.

Acturis

Acturis provides cloud-based software that automates administrative tasks and trading for the insurance industry.

Founded in 2000, the London firm counts insurance giants such as Aviva and Allianz among its clients as well as many banks and smaller players. Turnover last year was £24.4m.

Calastone Limited

One of a growing number of so-called ‘FinTech’ (financial technology) start-ups in London, five-year old Calastone lets buyers and sellers of mutual funds on different platforms communicate orders and process trades electronically by using a universal messaging and ‘translation’ service.

Calastone, which takes a cut of all transactions it processes, last month raised $18 million from Accel Partners and existing backers Octopus Investments, which it plans to use to expand to Asia.

Hailo

Likely familiar to most Londoners, Hailo is the innovative app that lets people order black cabs from their mobile. Founded just two years ago, the service has already expanded to New York, Dublin, Madrid, Barcelona, Toronto, Chicago and Boston.

Hailo, which counts three cabbies among its founders, has over 42,000 drivers signed up and has booked over 3 million journeys, each of which it takes a cut of. To date it has raised over $50 million in funding.

Horizon Discovery

Cambridge-based biotechnology firm Horizon Discovery has developed a unique way of modelling diseases on a cellular level that has the potential to bring down the costs and accelerate the process of drug discovery.

Founded in 2007, the company expects to enter profitability by the end of the year and chief executive Darrin Disley has said Horizon plans to float sometime next year.

Huddle

No, not Tesco’s new tablet, Huddle lets businesses share and edit work between staff and across devices by storing them in the cloud – a bit like a Google Docs for businesses. Huddle's platform has been used by more than 100,000 organizations worldwide, including Diseny, Kia, Diageo and the UK government.

Based between London and San Francisco, the business was founded here in 2006. Turnover last year was up 85% at £2.9m.

Lumi Mobile

Lumi Mobile helps businesses get live feedback from users via mobiles, tablets and computers across the world during meetings or events. The company, which has offices in London, Hong Kong, New York and Helsinki, works with the likes of ABC, EMI, eBay and YouGov.

The company was founded in Finland in 2003 and Sir Martin Sorrell’s advertising giant WPP is a minority stakeholder.

Mimecast Service

While it may sound like a way of streaming French mime shows, Mimecast actually helps businesses keep track of email security, archiving and continuity.

Ten years old, the East London firm has over 7,500 clients and bases in the US, South Africa and Australia. Turnover this was £42.7m, up from £31m a year earlier, and the company has raised over $80 million in funding to date.

RepKnight

RepKnight gives businesses a platform that allows them to monitor what’s being said on the web through social media, forums and RSS feeds in real-time to help them manage their reputation. The Belfast based start-up began life just two years ago.

Zopa

Not to be confused with fellow Future Fifty inductee Zoopla, Zopa is an online peer-to-peer lender that connects borrowers looking for low rate loans to savers looking for higher interest rates on returns. The company was set up in 2005 by a team including former founders of Egg Bank.

As of May this year, users have leant £300 million through the service and the site has a default rate of less than 1%.

Secret Escapes

The UK’s largest flash sale site for luxury travel, members can save up to 70% on hotels and holidays.

The almost three-year-old East London business is backed by Octopus Investments and Massachusetts-based Atlas Ventures, which is also an investor in Zoopla.

SkimLinks

Founded by a pair of ex-pat Australians, SkimLink’s software automatically adds paid-for links to your websites by scanning uploaded content. East London based SkimLink began life in 2006 and has to date raised around $7m. It has 18,000 affiliate marketers in its network.

Synthesio

Similar to RepKnight, Synthesio helps firms monitor, understand and engage with social media. Clients of the seven-year-old business include Microsoft, Nissan, Proctor & Gamble and McDonalds. Set up in France, the business expanded to the UK and the US in 2010.