Morgan Griffiths LLP's VAT number is 921046460. As a member firm Read More View Company Info for Free Who is Morgan Griffiths Headquarters. Contact Details Address Cross Chambers, 9 High Street, Newtown, Powys, SY16 2NY Telephone 01686626748 Website www.mgllp.uk Email address info@morgangriffiths.co.uk ICAEW Chartered Accountants Thomas Michael Landers ICAEW Chartered Accountant Stephen Lewis ICAEW Chartered Accountant Robert John Osment ICAEW Chartered Accountant.