A-Z is supposed to be a talent management company Zoe & Alfie set up to manage up & coming social media stars, it was basically a carbon copy of what Joe & Caspar did with Margravine. Joe & Caspar where clever enough to get a large American talent company to invest& who also appointed a director to help them out, while Alfie & Zoe set it up on their own, they don't have any actual clients & it is basically just gleam staff who are there to babysit Zoe & make her feel like "girl boss".
Zoe signed a new 5/6 year contract with Gleam last year, so she ain't leaving anytime soon. Alfie left Gleam after Joe & Caspar & has a new management, but don't think they really do much for him.