Speaking at the event, Gordon Innes, chief executive of London & Partners, said he hoped the second London Technology Week would attract in excess of the 40,000 people who participated in 2014. He added that around 1,000 international delegates will be attending.
More than 210 events have been planned as part of the week, which has been organised by London & Partners in association with UBM and Tech London Advocates.
Global brands such as Bloomberg, Accenture and Goldman Sachs will participate in the programme alongside home-grown tech companies such as Funding Circle and Blippar.
This morning's conference also included panel discussions on sessions such as 'What's next for London's tech cluster?' and 'The key ingredients in scaling your tech business', featuring representatives from Google, Just Eat, Silicon Valley Bank, Amazon Instant a Video and Tech City UK.
The Mayor of London left his deputy of policy and planning, Ed Lister, to speak at the breakfast briefing in order to take part in a coding class with pupils from Regent High School at the Camden City Learning Centre.
Johnson will launch the first dedicated online hub for the capital's digital industry today. Created by Gust and sponsored by IBM, Tech.London will include information on events, classes, accelerators, jobs and other resources.
Olympic champion Denise Lewis will also launch a schools challenge with education technology company Skoolbo. Kicking off this morning and running until 19 June, the event will get London schools battling against those in New York across more than one million questions.
Johnson said: "With our unrivalled mix of investors, talent and creativity, it is hardly surprising that tech businesses and entrepreneurs are clamouring to be part of the incredible London tech story. This sector has flourished beyond recognition in the last five years, creating thousands of jobs and outpacing the rest of the economy.
"London Technology Week is rightly a celebration of that success. Now we need to continue our work to boost connectivity across the capital and arm the tech stars of the future with the skills they will need to drive forward this valuable industry for years to come."
To mark the launch of London Techology Week, a number of companies have released new research that reveals the state of the capital's tech sector.
According to London & Partners, London is the most important tech hub in Europe and it is forecast to boost its economy by £18bn in 2015.
The research has also found that London’s digital technology sector is growing faster than both the London and wider UK economy, and it is predicted to continue to do so for the next decade.
Figures produced by Oxford Economics¹ reveal that the number of companies in London’s digital technology sector has grown by 46 per cent since the Tech City programme was introduced.
The Mayor of London, Boris Johnson MP and the UK Prime Minister, David Cameron launched the initiative five years ago.
Professional services firm EY2 has found that more than 1,000 international tech investment projects were located in London between 2005 and 2014. Paris is the second most attractive city for such projects, where a mere 381 took place during the same period.
Google will today launch a pilot programme, dubbed the ‘Founders over 50’, for entrepreneurs over the age of 50. The programme will take place at the Google Campus in London.
London Technology Week, which is now in its second year, will run through until Sunday (21 June).
Stay tuned for updates throughout the day.