Office Hours
01452 729713
24 Hour Control Centre
0870 413 5330

About Us

Since the turn of the Century, Glevum’s commitment to our our clients in Gloucestershire, Herefordshire, Worcestershire, Wiltshire, Somerset, Bristol & Avon has resulted in delivering effective solutions which help keep people and property safe. Responsibility, continuous development and total care have always been the foundations of our working practice. We are continually improving our products and actively develop new products so that your business, view-our-latest-grapevine-issue-29home and family are protected 24 hours a day, 7 days a week, 365 days a year.

Glevum Security’s core belief is responsibility and we will promise to deliver to every one of our customers, the latest developments and innovations in security , hardware and services. Our belief in responsibility, continuous development and care ensures that our conduct measures up to the highest ethical standards in the UK and makes us the Industry Leader. Everyone at Glevum Security is dedicated to helping protect your home, your property, your assets and yourself. In doing so we will ensure your total safety and we will grow your business through the most comprehensive combination of customer care, state-of-the-art systems, and economical solutions, backed by world-class service.



Mark Baker

Mark served sixteen years in the Royal Navy gaining a wealth of experience in Operations, financial matters and resource management. On leaving the Senior Service he spent seven years working in the Emergency Control Room with Gloucestershire Police. Then in 2000 having identified a business opportunity in Keyholding & Alarm Response founded Glevum Security Ltd with Steve Barnett. More recently Mark has completed a Level 5 Diploma in the Management of CCTV Operations with comments ‘Having had the pleasure of assessing your work toward the achievement of the objectives for the Diploma, we can say, without any hesitation, that you have not only achieved those objectives, you did so with commitment, professionalism, determination & style’.  These are some of the many qualities Mark carries forward within Glevum.



Steve Barnett

Steve has been working within the Security Sector for over eighteen years, working for some of the major Security Companies within London. His knowledge of the industry covers all aspects of Security which include Training & Operational Management. Steve has also worked on Specialist security projects for some of his corporate customers. He is also an active committee member of the Aspire 100. Steve is qualified to teach Security Skills and has on many occasions been asked to publicly speak about Security in Commerce.





Derek Martin

Derek joined Glevum Security Limited in May 2003 as HR Manager. Prior to joining Glevum Security Ltd, Derek worked as an HR & Facilities Manager in the Communications Industry for 4 yrs. He commenced his CIPD qualifications at Gloucester University in 2000, is highly regarded as an HR Generalist within the Security Industry and was a finalist in the 2009 SSR Personnel HR Management Awards.





Sue Stevens

Working in the Security Industry since 1999, Sue joined Glevum Security Ltd in 2007 becoming their Quality Support Manager. She has a strong belief in Customer Service and thrives on building customer relations by meeting and exceeding customer expectations. Sue has gained a wealth of experience whilst working as an Area Manager with two National Security Companies, resourcing and maintaining multi-million pound contracts for customers based in the retail sector.



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