If you work through an agency, you may well be introduced to an umbrella company, or asked which you'd like to work with.  There are many to choose from, and although your agency may have a preferred payroll service provider, you could take a look at the others before deciding which to use.
 

Genie Education is part of the Orange Genie group who have successfully employed thousands of teachers for nearly a decade.

Other payroll service providers:
RACs Group
ePayMe
Zebra

If you would like to add your company to this new list, please do get in touch!