Google and the BBC have become the first official partners of Internet Matters, and will provide support and resources to the online child safety group.
Internet Matters was founded in 2014 as part of a combined initiative between the UK's four largest internet service providers, including BT, offering advice and learning materials for parents and children on safe practices when using the internet.
Technology giant Google is the world's most used search engine, with more than a billion unique users of its search website each month, while the BBC is one of the UK's largest online news sites and platforms. Both companies will provide learning resources to Internet Matters as part of the initiative.
According to the 2015 Pace of Change report, the amount of time children aged eight to 15 spent online each week has doubled since 2005.
Eileen Naughton, managing director of Google UK and Ireland, said: "Google believes deeply in technology's ability to unlock creativity, and we work hard to ensure that parents and children have the tools and knowledge they need to make smart and responsible choices online.
"We're excited to be joining Internet Matters, and will continue to work with organisations across the child safety community to ensure that more families are able to safely open up the creativity, learning and fun the internet has to offer."
Internet Matters general manager Carolyn Bunting said the addition of Google and the BBC as partners would help make parents and children in the UK the "most knowledgeable and engaged in the world" when it comes to using the internet safely.
"The success of Internet Matters over the last two years has proved there's a real demand from parents who want to know more about how to keep their children safe online, from setting parental controls and safety filters, to what it means when your 11-year-old child has 900 followers on Instagram," she said.
"There is not a day that goes by where the subject of internet safety is not in the news.
"We are here for all parents who are affected by the pace of change in the digital world, but who would like to know more, talk more and do more to protect their children.
"We're delighted to have the BBC and Google on board. With their immense combined energy and enthusiasm in this area, we hope the issue of internet safety will become even more a part of the DNA of society."