

Your Plymouth Private Investigators

Tremark has a dedicated team of professional private investigators in Plymouth and the surrounding areas. With nearly three decades of experience, we work diligently to gather evidence, provide clarity, and offer peace of mind to our clients. Whether you need support with corporate investigations, asset tracing, or pre-employment checks, our expert investigators are here to help.
We provide private, corporate, commercial, and legal investigations, offering a 24/7 private investigator service in Plymouth. We pride ourselves on discretion and professionalism, delivering tailored solutions and expert advice to individuals and businesses across the city.
As trusted private investigators in Plymouth, Tremark is committed to achieving results with integrity. Certified to British Standard BS102000 and ISO9001, we adhere to the highest professional and ethical standards. All evidence is gathered lawfully and in full compliance with legal and regulatory requirements. Your needs are our priority, and we’re here to provide dependable, ethical, and effective investigative solutions.



Process Serving
Tremark works on your behalf to securely and efficiently deliver legal documents across Plymouth and the surrounding areas.

Asset Tracing
Want a clearer picture of someone’s assets? Our reports are produced by professional private investigators in Plymouth, with more than 30 years of experience in the industry.

People Tracing
Vanishing without a trace is difficult - but not impossible. Our skilled private investigators in Plymouth know how to track down those who are trying to stay hidden.

Bespoke Investigations
Have an investigation that requires a tailored approach? Our Plymouth-based team provides detailed and reliable analysis, built around your specific requirements.
Americas
Tremark delivers tailored intelligence and investigative services across the Americas, blending local expertise with cross-border insights for seamless results. Learn more.
Northern Ireland
In Northern Ireland, Tremark’s team combines local knowledge with discretion, offering precise solutions for sensitive cases. Learn more.
England & Wales
With offices in Leeds, London, and Leicester, Tremark provides instant nationwide coverage for process serving, surveillance, and investigations. Learn more.
Scotland
Tremark’s specialists in Scotland bring local insight and technical expertise to handle complex cases across urban and remote regions. Learn more.
Europe
Across Europe, Tremark offers multilingual, on-the-ground intelligence to navigate diverse jurisdictions and deliver actionable results. Learn more.
Australasia
In Australasia, Tremark combines local intelligence with proactive solutions, addressing unique challenges across the region. Learn more.
Africa
Tremark’s consultants in Africa leverage deep regional knowledge to navigate complex environments and deliver reliable services. Learn more.
Asia
Across Asia, Tremark provides culturally sensitive intelligence and investigative expertise, from megacities to remote areas. Learn more.

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What private investigation services in Plymouth does Tremark offer?
Tremark provides a comprehensive range of private investigation services in Plymouth, supporting individuals, businesses, and legal professionals. Our expertise spans process serving, tracing individuals, and asset tracking, helping clients uncover essential details. We also specialise in surveillance, reputational risk assessments, and pre-employment screening, giving businesses in Plymouth the confidence to make informed decisions. For more challenging cases, we offer tailored investigations, designed to reveal the truth in sensitive situations. With nearly 30 years of experience and accreditation to British Standard BS102000 and ISO9001, Tremark is a trusted provider of private investigations in Plymouth.
Are Tremark compliant private investigators in Plymouth?
Compliance is a fundamental part of our work as private investigators in Plymouth. With almost three decades of industry expertise, we hold British Standard BS102000 and ISO9001 accreditations, reinforcing our dedication to lawful and ethical investigations. As proud members of the Association of British Investigators (ABI), we adhere to the highest professional standards. To further enhance our data security and compliance efforts, we are actively working towards ISO27001 accreditation.
What areas does Tremark cover?
Tremark provides full coverage across the UK. Alongside our UK services, many of our solutions, such as process serving and asset tracing, are available internationally, helping clients in Plymouth and beyond to locate individuals, assets, and resolve legal matters across borders.
What if the private investigation service I need isn't listed?
If the private investigation service you're seeking isn’t listed, Tremark offers bespoke investigations tailored to your exact needs. We understand that every case is different, and our team can create customised solutions for the most unique investigative requirements. Our bespoke services include anti-social behaviour investigations, company checks, credit assessments, employment tracing, injury and sickness investigations, property attendance reports, tenancy fraud, Spanish property tracing, and worldwide investigations. Whatever your investigative challenge may be, Tremark has the expertise and flexibility to help. Reach out to our team to discuss how we can assist you.