About Us

LJ Investigation & Consultancy Services Pte Ltd is one of the nation's most trusted and best known firms in the field of investigation and security consultancy.

LJ Investigation & Consultancy Services Pte Ltd was registered on 1 April 1999 in accordance to the Republic of Singapore's "Companies Act" (Chapter 50). The Company is licensed by the Security Industry Regulatory Department (SIRD) of the Singapore Police Force to act as a Private Investigator.

LJ Investigation & Consultancy Services Pte Ltd has an impressive record of closing and solving cases in its 11-year history. The Company offers a comprehensive range of services in the field of investigation, crime prevention tactics and practices, methods of conduct in security and safety audits/surveys as well as implementing proper security and safety practices. Through its consultative approach in identifying risks, LJ provides individuals and corporations a means to expertise partnership in effective investigative solutions. With associated Private Investigation agencies in Hong Kong, Indonesia, Thailand and Malaysia, LJ are well-placed to help you conduct your regional business with an ease of mind.

The Man Behind It

Lionel Jerome De Souza, Managing Director and Founder of LJ Investigation & Consultancy Services Pte Ltd and LJ Security Services Pte Ltd, had a long and distinguished career in the Singapore Police Force. For his fine investigative skills, he has been decorated numerous times for his dedication to the country and his commitment to the enforcement of law.


In security matters, we partner you in your journey towards your business goals and work with you to achieve success.

Similarly, in matters of investigation, we endeavour always to uphold our Mission Statement – “What is now covered up will be uncovered, and every secret will be made known”.


To be a reliable and trustworthy private investigation and security agency in Singapore, and in the region based on our hallmark of professionalism and integrity.