ABOUT US
The Mainguard Story


Mainguard Security Services (S) Pte Ltd is the flagship of the Mainguard Group of Companies.
It was established in 1974 with the objective of providing effective security services to premises, both in the private and public sectors of the industry.
With this aim in mind, the company confined its attention initially to the physical security needs of its clients by providing reliable security officers to its assignments. Very soon, the company acquired the sound reputation as the premier security services provider in Singapore.
Over the years, having gained much experience in the business of security and having achieved its primary objective, the company diversified into related businesses with equal growth potential.
CORE VALUES
Our Guiding
Principles
At Mainguard, our core values define who we are and how we operate. We are passionate about advocating professionalism in the security and investigations industry. Integrity is key, and we prioritize ethics in protecting your information and reputation. Our agility ensures that we can adapt to your needs in today’s fast-paced world. With a strong customer focus, your needs always come first. Above all, we are committed to delivering excellence in every service we provide.

Passion
We are passionate about advocating professionalism in our security and investigations industry.

Ethics
We know how crucial it to protect your information and image and we value integrity and ethics.

Agility
We are flexible to cater for your requirements in today’s dynamic business world.

Customer Focus
As our customers, we are focused on you and your needs come first.

Excellence
We are determined to be deliver excellent service to you at all time.
ORGANIZATIONAL CHARTS
Organizational Structure
and Leadership Team

Major Ponno Kalastree (Retired)
Founder and Managing Director

Dora Woo
Finance Director

Sant Kaur-Jayaram
Project Director

Sheila Ponnosamy
Business Development and Operations Director

Steve Kirby
Senior Advisor

Alison Chong
Chartered Association of Certified Accountants

MORE ABOUT MAINGUARD
Mainguard
International
Founded 40 years ago in Singapore, Mainguard is a leading corporate investigations firm in Asia. Established by Major (ret) P. Kalastree, the company has garnered global recognition, with Sheila Ponnosamy receiving the International Investigator of the Year award in 2010. Mainguard’s extensive network spans over 20 countries, strengthened by a joint venture with Globe Detective Agency in India.
Serving law firms, insurance companies, and multinational corporations, Mainguard maintains high professionalism and discretion. Their well-trained team delivers confidential reports, ensuring clients can make informed decisions.
CONTACT US
Get In Touch With Mainguard
Mainguard Security Services Singapore Pte Ltd
- 6001 Beach Road #10-07, Golden Mile Tower Singapore 199 589
- +65 6296 5881
- +65 6296 5719
- info@mainguard-security.com.sg
- operations@mainguard-security.com.sg
- Open daily :10am - 6pm
Directions To Get Here
- Nearest Bus
Our office is conveniently located at Golden Mile Tower. If you’re traveling by bus, here are some helpful routes:
- Bus Stop B07011 (Golden Mile Tower): This stop is directly in front of Golden Mile Tower and is served by bus numbers 10, 14, 16, 70, 70M, 196.
- Bus Stop B07019 (Nicoll Highway Station): Just a short walk away, this stop is served by 10, 14, 16, 30, 56, 57, 70, 70M, 196, 541, 980.
Simply alight at the relevant bus stop, and Golden Mile Tower will be easily visible. We look forward to seeing you!
- MRT
Our office is conveniently located at Golden Mile Tower, easily accessible by several MRT lines.
- Nicoll Highway MRT Station (CC5 – Circle Line): This is the closest MRT station, just a 5-7 minute walk from Golden Mile Tower. Take Exit A from the station, which leads to an overhead bridge across Nicoll Highway. Follow the signs, and Golden Mile Tower will be a short walk from there.
- Lavender MRT Station (EW11 – East-West Line): This station is also within walking distance, approximately a 10-12 minute walk to Golden Mile Tower.