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Our offices

In addition to our four main offices in Southampton, Colchester, Manchester and Stourbridge, we also have regional team members based in Doncaster, Preston, Birmingham, Basingstoke, Blackpool and Worcestershire. As well as giving us excellent national coverage, when you speak to your regional representative you can enjoy the reassurance that comes from a great familiarity with the local area, including personal knowledge of the region.


No. 3 Benham Road, Benham Campus
University of Southampton Science Park
Hampshire, SO16 7QJ

Telephone: 023 8028 6300


Regional Office
No. 2 Pappus House
Tollgate West
Colchester, CO3 8AQ

Telephone: 012 0658 9103


Lowry House
17 Marble St
M2 3AW

Telephone: 0845 519 1969


York House
High Street

Telephone: 023 8028 6300

Contact us

We’re proud of the customer service we offer, but please remember; we’re not a 24/7 call centre kind of business. That means you don’t have to negotiate frustrating touch tone answering systems, and you’ll rarely have to wait in a queue whilst we remind you via recorded message that your call is important to us. Instead, we’ll show you how important your call is to us by answering the phone as quickly as possible and handling your enquiry with an engaging combination of expertise and understanding.

That’s because when you deal with Zenergi you’ll always speak directly to a friendly and knowledgeable expert who will be happy to assist you with your enquiry. As well as handling your initial query, we may even be able offer additional services and advice that could help you over and above your expectations.

Our energy expertise isn’t restricted to customer service. We are also able to offer more technical services, so no matter the nature or complexity of your enquiry, why not get in touch to find out exactly how you could benefit? After all; we’re here to help. 

By submitting this form, you consent to your data being collected and stored, and consent to us contacting you by email or telephone with regards to your enquiry.

Part of the Zenergi family

We are preferred partner and supplier to many associations including ASCL, WASBM, LASBM, BASBM, CAPSA and have been in partnership with some for over a decade. We regularly attend their conferences and give members the Positive Zenergi experience based on their needs.

Zenergi are also an approved partner with the Institute of School Business Leadership, offering ISBL members the provision of a customer service specialising in energy procurement, invoice validation and contract management.

We are proud in our unique offering, based around customer service excellence. We audit the suppliers we work with to make sure our customers are getting the best value and service and are pleased to offer OJEU compliant pricing.