Through its involvement in the event the brand aims to help the next generation of female entrepreneurs, and as such Barclays staff will be on hand to provide expert digital advice throughout the day.
Additionally, Kirstie Mackey, head of LifeSkills, an initiative created by Barclays will join BBC Radio 2’s Jo Whiley, Mediacom UK chairwoman Karen Blackett and MP Jess Phillips on Workfest’s keynote panel, which will be chaired by journalist Gaby Hinsliff.
Other event sponsors include haircare brand Nice 'n Easy and jobs site Share Your Job.
The one-day career event is targeted at women returning to work after maternity leave and those looking to start their own business. Barclays has been a title sponsor of the event since 2013.
Mackey said: "We’re delighted to join Workfest as headline sponsor for a fourth consecutive year. We look forward to engaging with the Mumsnet community at the event, and helping to inspire the next generation of female entrepreneurs."
Justine Roberts, CEO at Mumsnet CEO added: "The buzz at Workfest is always incredible; top employers recognising how much women returners have to offer, would-be entrepreneurs looking for inspiration and loads of talented women sharing experience and advice."
Mumsnet's third annual Mumstock marketing event took place in London yesterday (15 March), and saw presentations from brands such as Sainsbury's and Starbucks.