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We at STI are incredibly saddened by the death of Her Majesty The Queen. As a mark of respect for Her Majesty’s passing, and to give our colleagues the opportunity to commemorate her funeral, STI in the UK will be closed on Monday 19th September.

Leadership Team

Simon Best


Simon founded STI in 1989, during this time he has overseen the acquisitions STI has made including Roban Electronics, Fourlink Electronics, SSE Labs Limited and Airbus Defence and Space Poynton facility. He also facilitated the sale of 80% of STI shares to Integrated Micro-Electronics Inc, a listed Philippines business, majority owned by the Ayala Corporation Industrials Division of the Ayala Corporation. 

Simon attended RMA Sandhurst being commissioned into the Staffordshire Regiment.

Tony Best

Alternate Director

Tony joined STI as a Director in March 2010. From 1982 – 2010 Tony worked in the financial services industry, spending nearly 25 years at the US investment bank JPMorgan where he was Head of Global Sales and member of the Global Executive Committee. 

Tony sits on various boards and is a non-executive director of Via Optronics, HSSMI and SME Capital. Tony has a degree in Politics, Philosophy & Economics from Oxford University.

David Taylor

Managing Director

David joined STI in January 2020 and following a successful year as Managing Director Designate, working alongside Simon Best, he was appointed Managing Director in January 2021.

David has over 30 years of experience in the electronics industry (design, manufacturing and distribution) with leadership roles in major companies including Ultra Electronics, TT Electronics and Thales. More recently he headed up Prodrive, a leading motorsport and advanced technology business.

Nick Davey

Chief Technology Officer (STI and IMI)

Nick joined STI in January 2011 to set up the Research and Development activity. Prior to this Nick ran his own product development company for 10 years and worked 11 years at Motorola within Global Commodity/Materials Management, leading the International NPI Development within the Mobile Handset Division.

In 2019, 3 years after IMI’s acquisition of STI, Nick was appointed Chief Technology Officer of IMI.

Chris Lyon

Chief Operating Officer

Chris joined STI in 2000 and is now Chief Operating Officer. He is responsible for the operational outputs of all three manufacturing facilities – Hook, Poynton and Cebu.

Marconi Radar and Defence and was Production Manager at Raytheon Marine. Chris has a BSc Degree in Mechanical Engineering.

Alison Mitchard

HR Director

Alison joined STI in 2014 and has quickly progressed to HR Director. She is responsible for all aspects of HR and Training across STI’s 3 manufacturing locations – Hook, Poynton and Cebu.

Prior to joining STI, Alison graduated with a BA (Hons) in Business Studies before starting a HR related graduate scheme at IBM. She then joined the Chartered Institute of Personnel and Development and accumulated 20 years HR experience within manufacturing and distribution, moving into managerial roles at Eaton Aerospace and Palmer & Harvey.

Ian Cameron-Mowat

Defence Advisor

Ian’s Army career combined service in Signals units with spells in intelligence, Special Forces and the United Nations. His last seven years were spent leading procurement teams focused on counter-terrorism technologies.

Since 2010 Ian has assisted a broad range of defence industry clients in the UK and overseas, advising on strategy and helping companies find the right partners and win contracts.  As a core part of that portfolio, he has worked with STI since 2012