Services
Voice, mobile and data, from one engineering team
Maincoms supplies and supports the full communications stack for organisations across the UK, from our base in Cosham, Portsmouth. One team is responsible for design, installation and ongoing support.
Services
Select a service
Business phone systems
Hosted and on-site phone systems designed around your individual requirements.
Mobiles, SIMs and eSIMs
Handsets, SIM-only, eSIM and data connections on all four UK networks.
Business internet
SoGEA, full fibre, leased lines and 5G with failover for business continuity.
Software and integrations
Call recording, IVR, CRM integration, SMS, WhatsApp and web chat.
Who we work with
Solutions by requirement
Small and medium-sized businesses
Systems sized to current needs, with a clear path to grow.
Contact centres
Routing, recording, wallboards and supervisor tools for high-volume teams.
IT managers
A telecoms partner who works to your standards and documents everything.
Discuss your requirements with an engineer
Call us or send a short summary of what you need, and an engineer will advise on the options.
Contact
Speak to an engineer
Tell us about your site and what you need. One of our engineers will review the details and reply, usually within one working day.
5 Acorn Business Centre, Northarbour Road, Portsmouth PO6 3TH
Monday to Friday, 09:00 to 17:15
Out-of-hours support by arrangement