About Maincoms
An engineering-led telecoms provider
Maincoms is a team of telecoms engineers and project staff based in Cosham, Portsmouth. We design, install and support voice, mobile and data services for organisations across Hampshire.
Who we are
Delivered for customers by engineers
Our work is led by engineers rather than sales targets. Systems are specified to fit each organisation, installed to a documented standard and supported by the people who built them.
Our customers range from small offices to contact centres and multi-site organisations, many of whom have worked with us for a number of years.
- Design, installation and support by one team
- Based at Acorn Business Park, Cosham
- Authorised reseller for EE, Vodafone, O2 and Three

Principles
How we work
Engineering first
Recommendations are based on technical suitability, not on product targets.
Clear advice
We explain options and trade-offs plainly, including when a change is not worthwhile.
Local presence
Our base in Cosham allows us to attend site when it is needed.
Continuity
The team that installs your system remains responsible for supporting it.
Accreditations
Partnerships and recognition

Gamma Gold Partner
Gold status is awarded to the top tier of Gamma partners. Maincoms is within the top 6%.

Gamma Technical Alliance Partner
Recognises engineers trained across Gamma’s product range, including the Horizon hosted platform.

Yeastar Top Reseller 2023
Awarded for the highest volume of Yeastar systems and seats sold in the UK in 2023.

Comms Business Awards 2023
Finalist, Reseller of the Year (SMB).
Team
Your points of contact

Lance
Telecoms Consultant
Lance assesses requirements, specifies solutions and is the point of contact for technical decisions throughout a project.

Sarah
Project Co-ordinator
Sarah schedules surveys and installations, co-ordinates networks and suppliers, and keeps customers informed at each stage.
Contact our team
Call or email to discuss your requirements with an engineer.
