Our People

Phil Warren

Managing Director

After school Phil joined the Army as a Royal Engineer and spent 10 years at 59 Commando Squadron, which included many operational tours to interesting parts of the world.  Whilst in the Army Phil was trained as a refrigeration and steam boiler engineer, and when leaving the Army he worked first as a service engineer, then installation and commissioning supervisor eventually progressing to contract energy management looking after buildings in Bristol, the South West and the Midlands.

Phil set up ETS in 1998 (then called Emtec), providing consultancy to building owners and facilities managers on building services, maintenance and energy management.  With the benefit of his extensive industry knowledge, Phil has guided ETS’s expansion and evolution to a point where we are working with renowned national and international companies.

As the boss much of his time is spent leading the business and providing guidance to his team, although he likes to ‘keep his eye in’ and he is still actively involved in the delivery of our services.

Away from the office Phil enjoys 5-a-side football, mountain biking, motorbikes, and listening to music that is decades too recent for him.

ETS Team Member - Phil Warren

Phil Bilyard

Operations Director

Phil’s first job was providing specialist engineering support, driving tanks, bridging and bomb disposal in the Army’s Corps of Royal Engineers.  After the Army he became a building services engineer and a technical officer in the telecoms sector, then an electrical specialist and project manager working at Gatwick and Heathrow airports.  He then worked as a Contract Manager delivering air and water quality management services, before moving into energy management and low carbon consulting.  Phil has an HND & HNC in Electrical and Electronic Engineering, Graduateship with the City & Guilds, and is an Incorporated Engineer (IEng) with the Energy Institute, IET and CIBSE.  He is also a Chartered Energy Manager.

His role at ETS is heading-up our operational team in the delivery of technical consultancy and energy management for the Retail and FM & Property sectors.  Phil has played a key role in developing several of our key service offerings, including the Energy Centre, technical audits and energy audits.

Outside work Phil likes rugby, kayaking, music (especially ska and punk), reading and a few social beers.  

ETS Team Member - Phil Bilyard

Liam Rafferty

Commercial and Finance Director

Liam is originally from Whitley Bay on the North East coast and has a First Class Honours degree in Politics from the University of Leicester and an MSc in Computing Science from Newcastle University.  After working abroad in Indonesia Liam joined Aldi Stores UK & Ireland as an Area Operations Manager in 1999 before being promoted to a Regional Director in 2003, aged just 29.  He was one of the founding members of the Aldi Energy Management Committee, implementing a number of complex and strategic business critical projects, including introducing Energy as a Corporate Vision, Policy and Strategy piece whilst employing a complete Energy Management System solution to ISO50001.

Liam manages all Commercial and Financial activities at ETS alongside our strategic business transformation programme - developing and reinforcing our service offering; strengthening our internal business systems, processes and delivery; implementing numerous and varied Finance and IT infrastructure projects; all helping to enable our continued rapid innovation and growth plans.

Outside of work, Liam enjoys family time with his wife and three children near Holmfirth, West Yorkshire and is an avid sports fan playing golf (although his handicap has risen to eight recently), five-a-side football, road cycling tours and coaching junior rugby union, supporting Newcastle United, Newcastle Falcons, Darlington Mowden Park RUFC and now Huddersfield RUFC, whenever he can.

ETS Team Member - Liam Rafferty

John Kane

Business Unit Director (Ireland)

After achieving a First Class Honours degree in Applied Physics from Dublin City University in 2000, John continued his studies completing two Masters degrees - MSc in Aerospace Dynamics from Cranfield University in 2004 and an MSc in Energy Management from the Dublin Institute of Technology in 2008.  John started his career at Veolia as an Energy Manager before becoming the Head of the Energy Engineering Department.  During his time at Veolia, John gained over eleven years of experience in energy management and project management working across a broad range of sectors including industrial, commercial and public sector. 

John’s experience includes supply side (including LTHW/steam boilers, chillers, CHP engines and gas turbines, compressed air) and demand side (including BMS controls, lighting, insulation, M&V systems) projects.  In addition to his extensive experience, John is the Chairman of the Energy and Environment Division of Engineers Ireland and is a Certified Energy Manager with the Energy Institute and a Chartered Engineer with Engineers Ireland.

John is responsible for driving the growth and success of ETS in Ireland, and ensuring our clients technical and energy related needs are met.

Outside of work John enjoys hill walking, five-a-side football and keeping fit in the gym.


ETS Team Member - John Kane

Marisa Maitland

Senior Energy Analyst

Marisa has a BSc in Biology, and before joining ETS she worked for an environmental consultancy where she undertook domestic energy assessments, building modelling, remote monitoring of BMS, and data collection and analysis.

At ETS Marisa is the lead analyst on our Energy Bureau, where she provides expert insight on understanding and using data in pursuit of providing the best advice to our customers.  She has also played a key role in developing and deploying a web-based data collection and analysis platform built for one of our clients.

Having hitch-hiked across Europe, Marisa certainly has an adventurous side, but she also enjoys some much more homely pleasures, such as knitting and cooking (her chocolate brownies are amazing!).

ETS Team Member - Marisa Maitland

Steve Shires

Senior Consulting Engineer

Having completed a full electrical engineering apprenticeship and gaining a HNC in Electrical Engineering, Steve worked as an electrician and works manager where he gained experience of all aspects of electrical installations and servicing, but especially lighting installations.  Then for 11 years he then ran his own electrical contracting business that was NICEIC accredited.  From here he went into the retail sector where he was a technical manager, facilities manager and has latterly been an energy manager rolling-out energy saving technologies.

For ETS Steve deploys his full range of expertise and experience undertaking surveys, audits, project management and providing technical expertise where it is needed.  As well as being highly experienced, he is an amiable and straight-talking member of our team.  

Steve is a keen photographer, in particular wildlife and macro.  He is a keen follower of Formula 1 motor racing, and he enjoys seeing the world from the comfort of a cruise ship.

ETS Team Member - Steve Shires

Matt Vossen-Barnes

Project Manager

Before his move into energy and environmental management, Matt had a career in retail where he had progressed from shelf-stacker to store manager.  Looking for a new challenge, Matt took a degree in Climate Change & Energy Management at the University of the West of England.  He started working for ETS after completing this course.

Matt is the key account manager for our contract with a leading UK supermarket, where he delivers energy saving projects and initiatives in a complex and demanding environment.  To be successful in this role Matt combines his understanding of retail with his energy and environmental expertise.

After work, Matt enjoys playing squash, 5-a-side football and walking. 

ETS Team Member - Matt Vossen-Barnes

Sara Champion

Contracts Administrator

The majority of Sara’s career has been in the legal profession either working for law practices, or working in a legal department of a firm in another industry.  Sara has experience of a wide assortment of legal matters including family practice, property, medical negligence and multi-party actions.  In addition to other roles she has been a Secretary, a PA to Partners/Directors, a Paralegal and a Conveyancer, working for firms that range in size from sole practitioners to multinationals.   

At ETS Sara is the principle administrator for our major contracts and is more than likely the friendly voice you will be greeted by when you phone our office.

Sara likes to complete walking and cycling challenges to raise money for good causes, she also enjoys walking and cycling for their own sake! 

ETS Team Member - Sara Champion

Annie Westaway

Consulting Engineer

Annie was awarded a BEng in Mechanical Engineering from Nottingham University and an MSc in Environmental Sustainability from Edinburgh University.  From here she has built a career in building services design and consultancy, albeit with a bias towards energy efficiency and environmental consciousness.   She has picked-up experience working for 2 world renowned engineering firms, and has worked in the UK and Australia.  As a result of her extensive experience Annie has achieved Chartered status (CEng) through both IMechE and CIBSE.

At ETS Annie heads up the Technical Energy Centre, ensuring that we maintain a good service to our customers as well as developing the Bureau’s systems and service offerings.  In addition to this she takes an active role in developing and providing energy audit services.

As part of a commitment to a healthy lifestyle, Annie enjoys cooking healthily from raw ingredients, being active with walking and cycling, and reading about nutrition. 

ETS Team Member - Annie Westaway

Derek Broomfield

Senior Consulting Engineer

Starting at age 15 as an apprentice, Derek has amassed over 50 years of experience in refrigeration and air conditioning engineering.  It would be fair to say that through his career, there aren’t many refrigeration and air condition technologies that he hasn’t installed, maintained, designed or consulted on.  He has worked all around the UK as well as the USA, Europe and Brazil.  Before joining ETS, Derek ran his own successful business, which he sold so that he could retire.  Luckily for us, Derek soon got bored of retirement and he started looking for a new challenge.

Derek’s primary responsibility for ETS is running projects, which range from complex large scale nationwide roll-outs with retailers, to specialist bespoke works with small and medium sized businesses.  His mass of experience is a great resource for his colleagues and clients alike.

As well as being a dab-hand with a spanner and gauges to fix refrigeration equipment, Derek is equally good with a chopping-board and a frying-pan in the kitchen to fix-up a gourmet meal.  He also enjoys a spot of 5-a-side football and the odd round of golf.

ETS Team Member - Derek Broomfield

Kelly Grady-White

Technical Administrator

Initially working in sales, Kelly has experience selling products as diverse as cars, furniture and baked goods.  Whilst working for an international brand in food production, she sold breads and pastries to some of the top hotels, restaurants and cafes in Bristol.  She then moved into technical administration, working for a company that installs and services lifts and escalators.

A driving force in the engine room of ETS’s project delivery activities, Kelly keeps a keen eye on all aspects necessary to deliver a scheme successfully.  She combines effective organisation and communication to keep work on-time and on-budget.

Kelly is a keen equestrian and looks after her own horse Shear Elegance, or Ele for short.  Before Ele’s retirement they competed together at point-to-point races and shows across the south west.  Kelly enjoys being outside, whether walking, riding or cycling.

ETS Team Member - Kelly Grady-White

Simon Baker

Energy Data Analyst

Following on from a BSc in Geography at Swansea University, and after spending a winter ‘working’ in the French Alps, Simon went to the University of the West of England to complete an MSc in Environmental Consultancy.  As part of this course he completed an industry placement at ETS, and the rest as they say is history!

Simon’s role within the ETS Energy Centre encompasses energy analysis, reporting and control system management.  Simon combines a pragmatic approach for getting things done with looking for opportunities to constantly refine and improve our service. His primary achievement since working at ETS are the improvements on the benchmarking and savings calculations methods considered on key contracts and projects.

After growing up trying his hand at numerous water sports Simon still likes to go surfing and he is training hard to improve his running.

ETS Team Member - Simon Baker

Mark McLean

Consulting Engineer

Whilst gaining a BSc in Applied Biology and Biotechnology from Hull University, Mark worked in a pub and after graduating he became a publican and landlord for a national brewing chain.  After this he became an HGV driver for a few years, before training as an electrician.  His first job in the building services sector was as an electrical maintenance engineer, but he increasingly became involved with control systems, and he has gained training and experience on a wide range of control systems and platforms.   Prior to joining ETS, Mark worked as a controls engineer at one of the UK’s largest pharmaceutical plants.

Mark is our controls specialist and provides his expertise to where it is needed in the business, but he is not a one-trick-pony, and he is often involved in surveying, auditing and analysis as well.  Thanks to his widespread knowledge of the controls industry, Mark is able to provide solutions no matter what the existing control infrastructure is.

Mark is a technology enthusiast, and spends a lot of his free time designing, building and testing his own electronic devices and IT systems.  He also enjoys walking and cycling.  

ETS Team Member - Mark McLean

Ann Angelinetta

Office Manager

During a very varied career, Ann has worked in sectors as diverse as retail, leisure, manufacturing and teaching.  She worked her way from box office clerk to general manager of her local cinema.  Then moving to Sweden she learnt Swedish and took a job teaching English.  Returning to the UK she spent some time as PA to a Director of a multinational retailer, before trying her hand at property development, and then finally arriving at ETS.

Ann runs the ETS Office like a tight ship, efficiently organising and administrating the majority of the facilities and resources so that the business runs smoothly.

In her spare time Ann enjoys a game of golf, gardening and travel.

ETS Team Member - Ann Angelinetta

Chris Handford

Senior Consulting Engineer

With a Master’s degree in Aeronautical Engineering (MEng) from Durham University and experience working for a leading guided weapons manufacturer, Chris is our resident rocket scientist!  He initially made a move away from aerospace to work as a refrigeration and air-conditioning engineer, but has subsequently picked-up experience across the building services sector as a project manager and key account manager.

Chris has a broad skill set, covering building services engineering, energy management, project management, building controls, IT, software, statistics and modelling. His current duties with ETS are focused on strategic development of resources, skills, systems and processes within the business.

Outside of work Chris is a keen rower and is a regular at Ashton Gate to watch both Bristol City FC and Bristol Rugby.

ETS Team Member - Chris Handford

Mark Stafford

Senior Consulting Engineer

Mark started his career as an apprentice fitter and turner working in tobacco processing.  Since then he has gained experience working as an engineer, manager and consultant across the building services sector.  As well as this he qualified and worked for a time as a commercial pilot.

Back down to earth with ETS, Mark is one of our most knowledgeable consultants, able to provide expertise on most engineering topics – and always with reference to published standards to back himself up!  Mark’s outstanding attribute is his keen eye for detail, which is equally meticulous whether it is trained on a document or an installation of equipment.

As well as being a season ticket holder at Bath Rugby, Mark enjoys playing golf and the occasional beer.

ETS Team Member - Mark Stafford

Kev Wiseman

Technical Support Consultant

Beginning as an apprentice pipefitter and welder, Kevin worked up through the ranks to chargehand and then foreman for a major nationwide M&E installation firm.  Moving into maintenance, Kevin picked-up experience managing maintenance work in heavy industry, schools, offices and government buildings.  Along the way he earned himself an HND in Building Services Engineering.

For the last few years, Kevin has operated as contracted-in support for one of our major retail clients, providing technical advice and project management from within their head office.  Previously, Kevin has managed projects for ETS’s clients and he was instrumental in setting-up and managing a project monitoring and sign-off processes suitable for nationwide roll-outs of technologies across 100s of sites.

Kevin is a season ticket holder at Gloucester Rugby and enjoys the opportunity to support his club in the away-legs of European fixtures.  He also enjoys golf, horse racing, mod music and culture, and wearing a flat-cap better than anyone ever thought possible.

ETS Team Member - Kev Wiseman

Gerard Bailey

Consulting Engineer

Gerard has 2 degrees in Environmental Science, a BSc from the University of Ulster and an MSc from Trinity College, Dublin.  He went to Portugal to undertake a research project on biomass with the University of Lisbon, and whilst there he set-up a company to provide a range of building environment testing services, such as air quality, legionella and asbestos.  Running his company (Analises do Are Ambiente) has given him extensive experience of buildings and building services, including hospitals, banks, offices and retail space.  Gerard has also branched-out into energy auditing, and he is a Certified Energy Auditor (CEA) and an accredited ISO 50001 Assessor.  His career has taken him to locations across Europe, including Portugal, Spain, Germany, Romania and of course the UK and Ireland.

In his role at ETS Gerard uses his extensive knowledge and expertise undertaking surveys, audits and assessments, as well as providing expert advice on his many areas of expertise.  Gerard is very passionate about his work and is always keen to listen and input to a discussion.

Outside work Gerard enjoys archery, shooting and fishing, as well as football and the occasional spot of grass-track racing. 

ETS Team Member - Gerard Bailey

Jenna Dalton

Marketing and Technical Administration Executive

After completing her BSc(Hons) in Tourism Management at Plymouth University, Jenna continued her studies to achieve a CIM Professional Diploma in Marketing.  Jenna has an extensive background working in the tourism sector within private, public and third sector organisations and is a member of the International Institute for Sustainable Tourism (IIST).  Since then, Jenna has pursued a career in the energy sector and has experience working within energy supply.

Jenna is responsible for implementing the company’s marketing strategy as well as managing, administering and controlling the internal sales process.  Working with the Operational Consulting Engineers, Jenna also provides technical administration and operational support to our team. 

In her spare time Jenna enjoys walking, cycling and travel.

ETS Team Member - Jenna Dalton

Simon Pocock

Senior Consulting Engineer

Simon is an experienced M&E practitioner with a wealth of experience dealing within varied and complex facilities.  After serving in Her Majesties Royal Navy, occasionally working and living on Type 23 Frigate, Simon pursued a career working in refrigeration maintenance.  In 2004, Simon joined Emerson Climate Technologies as an Engineer where he was quickly promoted to Contract and Account Manager positions working on high profile energy and engineering projects and initiatives.  He brings with him a vast array of skills and is a great innovator driven by the need to maintain plant and equipment as operational in a critical environment.  

Simon is based in Sheffield and is one of our Senior Consulting Engineers working in the Operations team.  He is responsible for our day-to-day delivery of energy and technical projects and contracts for the FM & Property and Retail sectors.  He is also the principle lead and Project Manager for one of the UK’s largest DIY retailers as well as supporting our retail team in the supermarket sector.

Outside of work, Simon is a staunch supporter and season ticket holder at Sheffield Wednesday.  He enjoys spending his spare time with his wife and daughter and socialising with his family and friends, something the Royal Navy seems to have trained him very well at…

ETS Team Member - Simon Pocock

Callum Main

Commercial Finance Assistant

Callum started his career working as an Accounts Assistant for a Management and Financial Services company before progressing into the role of Finance Executive at a Community Relation and PR Consultancy firm.  He is currently looking to complete his CIMA qualifications in the coming years and become a Chartered Accountant.

Callum supports our Commercial and Finance Director and is responsible for controlling and monitoring the finance processes across the business.

Outside of work Callum enjoys both playing and watching rugby, computer gaming and spending time with his dogs.

ETS Team Member - Callum Main