Parametric Service Consultancy/ Company

Hi!

Can anyone name consultancies or companies which offer parametric services to architects? We need assistance for iterative design and optimization for view and minimum solar gain. I suppose, most architects have an in house team which executes such exercises, but we do not have any skilled person to do so.  

http://www.bollinger-grohmann.com/

http://www.burohappold.com/think-again/specialisms/computational-an...

Any lead will be highly appreciated.

Thanks!