About Us

A company you can trust to deliver with over 30 years of service to the Telecoms and Data Comms industry.

Who are Mainframe Communications?

Mainframe Communications Ltd have been a supplier to the telecoms sector since the introduction of fibre into the European communication networks in the 1980’s. Over the years we have developed a comprehensive range of optical fibre and associated management products to serve operators of telecommunication systems.

Our modern purpose-built manufacturing facility in Southend-On-Sea has dedicated facilities for the design, manufacture and testing of optical products. This is backed up by warehousing of a wide range of standard products, available for next day delivery with the UK.

Our manufacturing operation is BS EN 9001:2015 accredited and we supply many of the leading telecommunications operators both in the UK and throughout Europe. We are known for the quality of our products, designs, build standards and for the quality of services within the UK.

We provide a quality product on time with full technical back up – in the event a fully suitable product is not available from our standard range, our specialist development team have the capability to design a bespoke product to your requirements.

History of Mainframe Communications

Mainframe was formed and started life in a small workshop in Westcliff-on Sea, Essex, specialising in the design and support of Fibre termination products into the UK military services


The operations were moved to a larger premises in the nearby area of Southend-on-Sea, where the facilities allowed expansion into the manufacturing of fibre termination equipment


A greenfield site was acquired and new purpose built premises were constructed giving the company the opportunity to expand and employ


Further addition to the existing building allowed the continued expansions of the fibre & copper connectivity product offering along with the introduction of the Cabinet Integration Service


An E-Commerce facility was introduced to support the increasing customer base


Major extension to main facility with introduction of further product lines to support the E-Commerce capability