Company Overview

VIPER RF is a microwave and millimetre-wave product company with headquarters in the United Kingdom.  The company was established in 2008 and has evolved from design consultancy roots to an established globally recognised MMIC supplier.

The company designs and supplies GaAs/GaAs/SiGe MMICs for key applications from 1-150GHz as standard catalogue and customised parts.  VIPER RF has supplied MMICs and packaged solutions into some of the most demanding commercial, defence and space markets.  The company is also at the forefront of developments for new applications with emerging technologies.

The company has in-house capability to perform production tests at wafer level and for packaged devices.  Prototype and production test capability is available up to 110GHz.  In-house infrastructure allows for fast turn-around chip-and-wire module assembly. 

VIPER RF collaborates with partners to provide the best solutions for Clients.  The company has third-party design partnerships with world-leading semiconductor wafer manufacturers.  We work with packaging houses in the UK and off-shore to provide the best options in terms of cost and performance for volume requirements.  We have a set of R&D partners to support the development of new products, and sales representatives in key locations to support design-ins.



2013 - First sales representative agreement

2015 - First GaAs MMIC product above 100GHz developed (150GHz)

2017 - Purchase of state-of-the-art premises with Class-1000 clean room 

2018 - In-House automated package part test set-up commissioned

2019 - First overseas office opened

2012 - Third-party design partnership with key wafer foundries announced

2014 - Expansion of design office to accomodate growth in staff

2016 - First GaN MMIC hardware product sales globally

2018 - In-House automated production wafer test commissioned

2019 - First  MMIC products enter Space and we are over the moon about it!

2010 - First GaAs MMIC hardware product sales (UK)

2011 - First GaAs MMIC hardware product sales (outside UK)

2008 - VIPER RF Ltd  is incorporated as a UK company

2008 - First RF consultancy role

2008 - First UK premises in Sunderland 

2009 - Recruitment of key personnel into Engineering team

2009 - Prototype Engineering laboratory with up to 110GHz capability

2010 - Expansion of design office to accomodate growth in staff


Head Office:   Unit 22 Parsons Court, Welbury Way,  Aycliffe Industrial Estate, Newton Aycliffe, DL5 6ZE,

United Kingdom


Registered Office:   c/o PINSENT MASONS, 13 Queen's Road, Aberdeen, AB15 4YL, Scotland, United Kingdom


Registered Number: SC338855

Tel: +44 191 305 1167



Our Quality Management System is certified to ISO9001:2015


We value equality and diversity in our workplace.  


Our workforce is dynamic and multi-cultural . This helps us be innovative and creative. 

Management  Team

Dr Jim G E Mayock

CEO & Co-Founder

Dr Simon S M Chan

COO & Co-Founder

Mr David C Smith

Director of Business Development

Mr Thomas Le Toux

Managing Director, VIPER RF France

Professor Wolfgang Bösch

Non-Executive Director


Join the team!

We are currently recruiting. Please send your CV to

Tel: +44 191 305 1167