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CIBSE is currently upgrading its IT systems to improve core customer functions and increase efficiency and effectiveness. This will mean some website services will be offline until Monday 25 July. Help

Staff Contacts


Stephen Matthews - Chief Executive/Secretary
As Chief Executive, Stephen Matthews advises and carries out the wishes of the President and Board. As the By-laws indicate, he is responsible for looking after most of the statutory and business requirements of the Institution. This involves external relations with government and the construction industry - and contact with representative bodies. Direct tel 020 8772 3638

Stuart Brown - Deputy Chief Executive
Stuart deputises for the Chief Executive in all functions and has specific responsibility for information technology. the administrative operation of HQ and the CIBSE Benevolent Fund. Direct tel 020 8772 3610

Janet Wigglesworth - Chief Executive's Secretary
Janet, who is also secretary to the Deputy Chief Executive, can help when Stephen Matthews is not available. She also deals with personnel matters such as HR issues when the HR Advisor is absent. Direct tel 020 8772 3638


  • For general queries please contact or call +44 (0)20 8772 3650.
  • For queries regarding payment of your membership subscription please contact or call +44 (0)20 8772 3655.

Carilyn Burman - Director of Membership
Tel: +44 (0)20 8772 3601

Danielle Adam - Membership and Registration Manager
Tel: +44 (0)20 8772 3642
Margaret Naldrett - Membership and Registration Administrator
Tel: +44 (0)20 8772 3602

Lee Whitman - Membership Subscriptions Administrator
Tel: +44 (0)20 8772 3621
Joe Timms - Membership International and Regions Coordinator
Tel: +44 (0)20 8772 3691
Gillian Francis - Membership Development Manager (UK)
Tel: +44 (0)20 8772 3692
Nick Everitt - Membership Development Manager (International & Regions)
Tel: +44 (0)20 8772 3612

Grace Potthurst - Membership Development Coordinator
Tel: +44 (0)20 8772 3611

Olga Mendes - Membership Development Officer 
Tel: +44 (0) 20 8772 3644
Lucy Aldcroft - Membership Development Officer
Tel: +44 (0) 20 8772 3605

Julia Savage - Membership and Qualifications Officer
Tel: +44 (0)20 8772 3649

Lizzie Smith - Membership and Accreditation Coordinator
Tel: +44 (0)20 8772 3604


Nick Peake - Head of Knowledge
Developed and manages the Knowledge Portal.  
+44 (0)20 8772 3684

Ken Butcher - Editorial Manager
Technical editor and manages the production of the institute's technical publications. 
020 8772 3628

Eileen Bell -  Knowledge Editor
email tba
020 8772 tba



Lucinda Watt - Head of Marketing
020 8772 3639

Clare Bott - CIBSE Services Marketing Consultant
020 8772 3630

Nadia Gatter - Membership Marketing Manager
020 8772 3680

Sharon Pestonji - Marketing Executive 
020 8772 3631

Lucy Bamber - Services Marketing Manager
020 8772 3607

Richard Howard - Website Manager 
020 8772 3647

Nicola Hurley - CIBSE Journal Production Manager
Main point of contact for enquiries relating to the CIBSE Journal, subscriptions and production. 
020 8772 3697

Amy Emmett - Business Relations Manager (on maternity leave)
CIBSE’s B2B client account manager for existing and new business.

Matt Snowden - PR & Communications Executive 
PR and social media.
020 8772 3671


Hywel Davies - Technical Director
Responsible for the technical activities of CIBSE, including technical input to publications and the website, CIBSE staff support for and co-ordination between CIBSE Groups and Societies, development of CIBSE input to policy consultations from government and the devolved administrations in Scotland, Ireland and Wales. The technical department also provides technical support for CIBSE Services work on energy performance and certification. 
020 8772 3629

Malgorzata Filas - Technical Coordinator
Malgorzata coordinates Technical Department’s activities, including public consultations, technical queries and technical content of the website, and provides secretarial support to the Knowledge Management and Technology Committees, and PA support to the Technical Director. 
020 8772 3645

Sara Kassam - Head of Sustainability Development
Sara provides a focus for sustainability at CIBSE, developing policy, knowledge, technical and collaborative initiatives. Sara is always looking for opportunities to connect people and ideas to encourage action on sustainability issues. 
020 8772 3632

Anastasia Mylona - Research Manager
Anastasia is responsible for all research activites of CIBSE for the advancement of knowledge in all areas of building services engineering. Activities range from supporting academic research as partners, stakeholders and providing a dissemination route of research outputs, to funding research projects such as Doctorate and Post Doctorate studies, Knowledge Transfer Partnerships and Engineering Doctorates.
020 8772 3690

Nyree Hughes - Technical Networks Manager
Nyree oversees the activities of the Special Interest Groups, the Society of Fa├žade Engineering, the Society of Public Health Engineers, the Institute of Local Exhaust Ventilation Engineers and the Young Engineers Network. Nyree is also the staff manager for the annual Technical Symposium. 
020 8772 3643

Veron Williams - Events Organiser
Veron helps organise the Institution's social activities, groups and societies events, annual meetings and is responsible for arranging outside bookings in the Building Services Engineering Centre. 
020 8772 3613

Brendan Keely – Secretary of the Society of Light and Lighting
Brendan is responsible for the development of the Society through its membership, events, exhibitions, seminars, lectures, policy and technical queries. As Secretary he also liaises with all SLL comittees and CIBSE as well as supporters and partners.
020 8772 3622

Juliet Rennie - SLL Coordinator
Juliet provides administrative support and assistance with events and membership queries for the Society of Light and Lighting. 
020 8772 3685

Chris Brown - Patrons Coordinator (Consultant, Part-time)
Chris deals with Patrons membership queries and organises Patrons events and initiatives.
020 8772 3626

Training, Events and Courses

Melissa Fileppi  -  Mid Career College Course Development Manager
Responsible for Mid Career College training. Direct tel 020 8772 3640

Hari Sparkes - Mid Career College Course Administrator Direct tel 020 8772 3656

Charlotte Stubbs - Training and Events Manager
Manages CIBSE's training events including Energy Assessor training, Professional Learning events & CIBSE's online learning. Direct tel 020 8772 3672

Lydia Marston - Training and Events Coordinator Direct tel 020 8772 3616

Jade Buckle - Training & Events Administrator Direct tel 020 8772 3656


CIBSE Certification

Andrew Geens - Head of Certification Direct tel 020 8772 3606 

Ratija Chitnavis - Certification Systems Manager  Direct tel 020 8772 3668

Pavlos KonstantinidisTechnical Manager Direct tel 020 8772 3620

Helena Briestenska - Certification Officer (Applications)  Direct tel 020 8772 3676
Conor Francis – Administration Assistant Direct tel 020 8772 3681

Ayesha Adolphe - Administrator Direct tel 020 8772 3614



Stewart Gilmour - Director of Finance and Services
Overall responsibility for the Finance department. Direct tel 020 8772 3693

Barend Janse van Rensburg - Management Accountant
Responsible for the production of the management accounts for CIBSE & CIBSE Services and assisting with the preparation of the Institute's annual budgets. Direct tel 020 8772 3619

Dane Daly - Financial Accountant
Responsible for the approving of CIBSE purchase invoices onto the purchase ledger, CIBSE bank reconciliations and identifying and posting direct debit and standing orders and posting daily. Direct tel 020 8772 3617

Stacey Dempster - Accounts Assistant 
Processes the CIBSE Services Supplier payments, Events sales invoicing and general accounts support. Direct tel 020 8772 3625

Lolita Doodnath - Finance Assistant 
Responsible for Credit Control, and Processes the CIBSE Supplier payments.
ldoodnath Direct tel 020 8772 3686

Danielle Milton - Publications & Certification Sales Assistant
Responsible for the processing of Publications sales orders and Certification lodgements credits & processing of payments in respect of LCC/LCEA registration. Direct tel 020 8772 3618

Tracy Lam - Financial Accountant Direct line 020 8772 3694


Support Services

Leigh Smith - Administrative Assistant
Provides administrative support to the Chief Executive's office. Direct tel 020 8772 3682

Sandra Sears - Office and Facility Manager
Responsible for day to day facilities management issues, including premises and equipment maintenance and purchasing of supplies and office equipment. Acts as relief receptionist and post dispatcher. Direct tel 020 8772 3641

Clare Riddiford - Database Manager
Clare is responsible for developing and managing the Institution's Customer database; supporting and training staff on its use; monitoring the accuracy of customer data; providing management reports on customer statistics and for running the yearly Membership Renewals process. Direct tel 020 8772 3669

Sheila Taylor - Stock Controller/Dispatcher
Sheila is responsible for the processing and despatch of publications orders, for stock control of the Institution's technical publications, and general post despatch. Direct tel 020 8772 3633

Simon Head - Caretaker
Simon is responsible for the general maintenance and general post despatch. Direct tel 020 8772 3695