The Security Company with Personality

TSI the innovators of ProSync have been at the forefront of innovation in the security industry for over 40 years. Installing, maintaining and monitoring security systems that protect thousands of people and billions of pounds’ of assets.

Always dedicated to finding the right solution for our clients and supporting them with best in class customer service.

TSI, So Much More Than The Safe Option

Peter Smith

Procurement Manager

Peter has worked at TSI for around 17 years.
He’s a fanatical Arsenal Supporter & Season ticket holder.
Fun fact: Once completed the London Marathon in 4 hours, but had to run an additional 3 miles extra prior to competing “fully clothed” due to taking the wrong train.

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Claire Terry

General Manager

Claire has over 20 years admin experience supporting busy executives within the city and is new to the security sector. She currently supports our CEO, Peter.

When she’s not working she enjoys travelling, running (after the kids) and time with friends.


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Jason Powell

Security Surveyor

Jason worked as an engineer for 10 years before moving into TSI sales for the last 6 years. He was one of the first people in the industry to qualify to NVQ Level 3 with a full apprenticeship in Security.

When he’s not working, he enjoys spending time with the family.

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Laura Palmer

Operations Supervisor

Laura started working with TSI at the age of 17, working within customer service, office admin, organisation and supporting service manager.

When she’s not working she enjoys spending time with family and friends, eating out and shopping.

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We pride ourselves on providing individual solutions for individual clients which reflects our simple mission: “to fully understand our client’s needs; design bespoke solutions and support clients with a dedicated team of highly professional and experienced advisers providing ongoing advice and claims assistance”.

Peter Terry

Chief Executive Officer

Peter joined TSI in 1997 and has over 30 years experience in the security industry. He has worked within a number of roles, from sales, to finance, and most recently, CEO.

When he’s not working, he enjoys going to West Ham home games with his daughter.


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Kate Scott

Business Development Manager

Kate has more than 20 years’ experience in the Insurance Industry having worked as both a High Net Worth Underwriter and a Commercial Broking Manager.

In her spare time, Kate likes to spend time with family and friends, running or competing in, and coaching triathlon.

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Antonia Miller

Finance Officer - Credit control

Antonia joined TSI in July 2017 working at the service desk with her two best friends, Laura and Nicola.

When she’s not working, she enjoys spending time with loved ones and attending boot-camp and weight training sessions.



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Louise Wright

PA / Sales & Marketing Assistant

Louise has been with TSI over 4 years, but has over 20 years experience in various administrative, management and PA roles. Anyone who has ever been to a TSI hosted event will know of Louise and the work she puts in to make them a memorable day.

Her hobbies include DIY, gardening, cooking, hosting dinner parties, dressmaking, animal welfare, pilates and yoga. One interesting fact is that she used to have her own business and fashion label when living in South Africa.

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Nicola Greenleaf

Customer Operations

Nicola has 14 years’ experience in admin/customer service roles and is a newer addition to the company, starting towards the end of June 2017.
In her free time Nicola enjoys walking her dog, socializing, spending time with her kids and reading.

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Paul Terry

Technical Sales Director

Paul has worked within TSI for over 28 years. He is experienced in all aspects of physical security from security design to problem solving.

When he’s not working, he enjoys playing and coaching football.


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Steve Mullaly

Service and Installation Manager

Steve worked as an engineer at TSI for 20 years before working his way up to Service Manager.

When he’s not working, he enjoys motorcycling and golf.

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John Whitty

Private Client Installation Manager

John has 20 years experience within the industry and has worked with TSI for 14 years.
John’s main hobby is mountain biking and he enjoys getting up early on a Saturday morning and hitting the trails, going for a 25 mile cross country ride.

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Phil Jackson

National Account Sales

Phil joined TSI as an engineer over 20 years ago. During this time he started as an Engineer working his way up to Senior Engineer. He then went onto Service/ Installations Manager. With his vast experience and technical knowledge within the electronic security division has now moved onto a sales role looking after National Accounts.

When he’s not working, he enjoys spending time with family and playing golf.


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Leanne Harris

Finance Officer

Leanne worked within operations admin when she joined in 2011 and helped with the very first roll out of Prosync. She was awarded the Itec business and admin apprenticeship of the year award.

When she’s not working, she enjoys lino printing, learning Japanese and spending time with her son.

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Daniel May

ProSync Information Co-ordinator

Daniel joined TSI after completing an admin apprenticeship in shipping. He works with the ProSync system, carries out data analysis and is responsible for customer liaison.

When he’s not working, he enjoys playing rugby, publishing poetry and performing comedy.


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Ansa Archibong

Finance Director

Ansa manages TSI’s finances and controls the company’s accounting function, including financial planning, management of financial risks, record keeping and financial reporting. He provides leadership to the Board’s Finance and Accounting Strategy to optimise financial performance and strategic position.

When he’s not working, he enjoys flying, boxing, travelling, motor bike racing, mountain climbing and fishing.



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Clare Gagen


Clare is experienced in research and development and received a BSC honours degree before joining TSI. She is TSI’s Data Protection Officer (DPO) and deals with H&S and other compliance.

When she isn’t working, she enjoys spending time with her children, swimming and sports.


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Mike Cripps

Private Client & Insurance Liaison Manager

Mike has 33 years experience within the lock, safe and security industry joining TSI in 2014 with an encyclopaedic knowledge of the safe & lock industry. Mike number one aim is to deliver the correct advice and service to the client. He is often asked to give advice and overview on large multi skilled security projects both within the high net private client and specialist commercial sectors.


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0844 800 1755