Grasshopper in the UK...

Hello Grasshopper community!

I was wondering - does anyone know which architecture firms around greater London use Grasshopper? I am a 'hobbyist' user (mainly for graphic design work) outside of work hours (SketchUp/Revit is the in office software of choice). My partner is moving to the UK (from New Zealand) and I would really like to persue a position where I could push this piece of software a little more. Is it realistic to hope for such a thing? I guess passion is only half the equation.

Thankyou for your time,

- Rich.