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private investigator Grantham
Association of British Investigators Membership


You have suspicions, our Grantham private detectives get the evidence.

Hire a Private Investigator Grantham

Contact SPI if you require professionally managed private investigator services in Grantham. We offer free, no-obligation consultations and confidential, efficient investigation services. In addition to serving the private sector, we also offer corporate investigations to the business community in Grantham and the rest of the East Midlands. SPI is pleased to provide expert investigative services at fair pricing compared to the industry standard. 




Private Investigators UK - Industry Professional Associations

ABI Logo

Association of British Investigators

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Armed Forces Covenant Bronze Awarded

institute of professional investigators

Institute of Professional Investigators


Corporation of Professional Investigators 

UK PIN logo

UK Private Investigators Network

Who We Are as Private Detectives Grantham

The managing director of Sentry Private Investigators has a significant military history with the British Army/Infantry. Following time served with HMForces, achieving the rank of Full Corporal and operational deployments to some of the worlds most dangerous places, the time had come to transition into a new career in the renowned and thrilling field of private investigations.

Just after national lockdown restrictions were lifted in 2021, SPI was established. Nevertheless, since 2013, the managing director has been actively engaged in carrying out both live private and corporate investigations in Grantham, across the East Midlands and throughout the UK.

In terms of covert surveillance operations and open source investigations (OSINT), SPI have seamlessly established a reputation for offering leading  private detective services in Grantham where excellent results are regularly achieved.

Private Investigator Grantham Services
Contact a Private Investigator in Grantham at SPI Today

Values and Standards of a Private Investigator in Grantham


Our private investigator Grantham services are delivered with integrity and professionalism on all accounts


Our private investigations are conducted with robust ethical standards and accountability at all levels


The private investigator Grantham services we provide are in compliance with UK privacy and data protection laws


A quality service at a cost effective price is what we deliver with both our private investigations and corporate investigations

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