Redesign of commercial office / showroom space

Description

Looking for a commercial interior designer based in the UK who can assist us with reshaping our showroom, based in our listed building offices in Berkshire.
We have some concepts already but need them working up into a viable room plan in line with our brand objectives. Full brief is attached, including images.
We may also need help with on-site project management to realise the project but this can be discussed.