Mainguard International (S) Pte Ltd

5001 Beach Rd #08-09 Golden Mile Complex Singapore 199588

Established 40 years ago in Asia’s commercial hub – Singapore, Mainguard is one of the few licensed companies in Asia today that specialises corporate investigations.

The company was founded by Major (ret) P. Kalastree who was elected as President of the Council of International Investigators (2001-2002), and a former recipient of the International Investigator of the Year (1998) presented by the Council of International Investigators – a US based association for security practitioners and private investigators with the membership background from FBI, CIA and intelligence organizations worldwide covering over 40 countries.

Mainguard has also produced another International Investigator of the Year, awarded by the Council of International Investigators to Sheila Ponnosamy in 2010. She was also awarded the Meritorious Service Award, and became President of the Council of International Investigators in 2014.

In October 2013, Mainguard was one of the top 3 companies in Singapore to receive a Distinguised Award for Small Medium Enterprises (SME) which is a prestigious business award for the SME sector in Singapore.

Through its international affiliations in over 10 professional associations and extensive global network in the Asia-Pacific region and the West, Mainguard has acquired a good working knowledge of countries worldwide.

Our Services

Investigations for the Corporate and Commercial Sector
- Pre-employment Screening
- Corporate Investigation
- Due Diligence
- Employee Fraud Investigations
- Intellectual Property Investigations
- Commercial Fraud Investigations
- Financial Investigations
- Forensic Accounting Services
- Insurance Claims Verification
Risk Management Services
Business Feasibility Studies
Civil Investigations
Drug & Alcohol Testing Services
Scientific Forensic Services

Contact Details

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Contact Person

  • Mr Ponnosamy Kalastree, Managing Director ( )
  • Sant Kaur Jayaram, Project Director (
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