Private investigator firm in London, manchester, birmingham and across the north west and UK

Achieve and maintain security, certainty, and success

Welcome to LJM Security and Investigations Ltd, the UK’s leading private investigating agency. Based in London, we provide investigative services for corporate and domestic sectors across the UK. From surveillance to camera installation, process serving and vehicle tracking, we provide a wide range of investigative services to help our clients achieve and maintain security, certainty, and success. Find out how LJM Security can help you solve your problem today.

Discover the truth and put your mind at ease

We have woven our experiences into a formidable professional and effective private detective operation based in the United Kingdom with global accomplishments. Our investigative services range from matrimonial and cheating partner investigations to people tracing, covert corporate surveillance, and more. We offer reliable private investigation services designed to discover the truth and put your mind at ease.

Whether it’s for personal or business reasons that you need help we are here to help. Our tailored investigative consulting services bring peace of mind to corporate clients and individuals throughout the UK, including London, Manchester, and Birmingham.

Compelling legal evidence for appropriate client action

Providing a balance of skills and expertise that will deliver the speediest and most effective results, our private investigators will protect your interests whatever the situation and empower you to take the best course of action.


As a registered member of the Association of British Investigators (ABI), we advocate ethical practice and are registered with the ICO ZA 504202. Our highly skilled field operatives work discreetly to provide compelling legal evidence for appropriate client action or to set minds at rest.

Professional, experienced and licensed private detective firm in London

If you need a private investigator for surveillance in London, finding a missing person in Manchester, or installing covert cameras in your business in Birmingham, our team of professional, experienced, and licensed private detectives are here to help. Get in touch today to discuss your needs.

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Mission and Vision Statement

Our mission is to execute investigations and surveillance discreetly, documenting and deliver manifestos enabling our clients to make informed decisions.


Our Vision is to be concise in the collection, collating and presenting accurate findings with the utmost confidentiality.

Contact Us

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