Leave the M40 at junction 10, direction Ardley & Middleton Stoney (B430). After ~ 1.5 miles turn right (signposted Upper Heyford). Bear right at minor junction and then turn right at first mini-roundabout into Upper Heyford Park.
From London take the Chiltern Railways train from Marylebone station to Bicester North. Transense's offices are about 6 miles north-west of Bicester by taxi.
From Oxford take the Thames Trains train from Oxford to Heyford. Transense's offices are about 2 miles east of Heyford station by taxi.
From Gatwick: Follow signs for M23, take the M23 in the direction of London. Leave the M23 at the junction with the M25. Continue on the M25 in the direction of "Heathrow". Leave the M25 at junction 16 (M40 North) in the direction of Oxford. Then follow the directions as per "By Road".
From Heathrow: Follows signs for the M4, take the M4 in the direction of "Slough & Reading" (Do not follow the direction of London). Exit at the junction with the M25 and follow the directions to Oxford and Watford. Exit the M25 at junction 16 (M40 North) in the direction of Oxford. Then follow the directions as per "By Road".