Contact
NSSE Ltd
167-169 Great Portland Street
5th Floor
London
W1W 5PF, UK
0333 222 4000
sales@nsse.co.ukRegistered in England:
03609853
Our normal office hours are:
Monday to Friday: 9:00am – 5:00pm.
Saturday & Sunday: Closed.
Christmas opening times - Our offices are closed from 5pm on 23rd December 2025, we return at 9am on Monday 5th January 2026.
Should you require urgent assistance with a contracted UPS or generator outside of our weekday working hours, please call the emergency out of hours telephone number found on the front page of your maintenance contract. For all other enquiries, please complete the below form and one of our team will contact you at the earliest opportunity.