The technology industry is still failing to tackle its diversity crisis, according to new research by Tech London Advocates.

In an independent network of over 3,600 tech experts, leaders and innovators in London, nearly half (46%) of London’s tech companies do not believe a diverse workforce improves a company’s growth.

Despite 60% of Advocates recognising that the tech sector doesn’t represent London’s wider diversity, the research found that this trend continues when looking at the gender representation amongst London technology companies.

Tech London Advocates said out of the 40,000 companies based in London, nearly 1000 have an entirely male staff force.

London has a reputation for being an international capital, but the survey shows that despite concern that the EU Referendum would lead to an exodus of overseas workers from the capital, more than one in three London technology firms employ a majority of their staff from outside the capital.

Russ Shaw, founder of Tech London Advocates said: “A lack of diversity in tech is the unfortunate secret at the heart of London’s fastest growing industry.

“Entrepreneurs, founders and CEOs have a responsibility to unlock growth, creativity and innovation by encouraging diversity and letting employees feel comfortable in their place of work. There is an economic argument for diverse workforces and a moral obligation – we cannot be proud of an industry that excludes, rather than celebrates, difference.”

Tech London Advocates revealed the findings of the research in The Diversity in Tech Manifesto, a report which also makes a series of recommendations to employers looking to increase the diversity of their workforce.

The report will be launched at Diversity in Tech, an event being held later today that will bring together over 800 of the capital’s leading tech professionals to consider its findings and debate solutions.

Maggie Philbin, CEO Teen Tech said: “We need face up the fact that we have a serious issue with diversity in the technology industry. Social background, gender, disability continues to trip up talent.

“Only by engendering the pioneering spirit that has helped the London technology industry get to where it is today and going beyond report writing to making changes can we hope to make a difference.”

Sarah Luxford, founder TLA Women in Tech and Director, Nexec Leaders said: “Digital technology allows for free sharing of knowledge and expertise, which is why it is so important that those building this technology reflect our society.

“We can and must do more to inspire and facilitate opportunities for the underrepresented groups within this city.”

Gender disparity in the workplace isn’t something new, and earlier this week, Wall Street Journal leadership expert John Greenhouse has advised women should obscure their gender to combat the issue of gender bias to tackle the issue.

In a blog post, Mr Greenhouse suggested women in Tech might want to consider using their initials online and remove photographs revealing their gender.