Bespoke sourcing / manufactoring of Lamp in england

I am looking for bespoke manufacturers in England for my lamp. It is made from mainly steel, aluminium, rubber and is powder coatet painted. I am in london from 28oct-1nov and are quite flexible at these days to fit in visits. i have a prototype with me that needs minor adjustments to the design and material. it is essential that the factory can deliver a complete package in terms of product AND packaging, but with our designs.