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TH
Bangna Towers and Teo Hong Silom Group
Corporate

Building Trust.
Creating What Comes Next.

From our founding in 1974 to a diversified group connecting engineering, technology, medical equipment, real estate, and innovation, we create sustainable value for our customers and society.

1974 Established
5 Decades Experience
PRIDE Core Value
ISO Quality & Security
Teo Hong Silom corporate journey
Founded by Mr. Phaisan
Sirirat-usdorn
A Welcome Note

From Strong Experience
 to Future-Ready Solutions

For more than five decades, Teo Hong Silom Group has built experience, expertise, and trust through close collaboration with leading customers and partners in Thailand and abroad.

We believe experience is only truly valuable when we can build on it to create something better for the future.

Today, we combine our expertise with technology, innovation, and collaboration across our partner network to develop products, services, and solutions that meet the needs of a changing business landscape, creating sustainable value for our customers and society.

“A pioneering solutions provider and business partner of choice in Thailand.”
Our History

From One Business to Diverse Expertise

We began as a distributor of electrical products before expanding our expertise into new industries as the market and customer needs evolved.

More than five decades of learning and development have grown Teo Hong Silom from a distributor into a diversified group that combines products, services, and solutions to meet the needs of customers across a wide range of industries.

1974

The Beginning

Founded by Mr. Phaisan Sirirat-usdorn, starting with the supply of electrical products for government and private-sector projects.

First Decade

Diversification

Expanded into construction, ICT, medical equipment, and real estate, while beginning joint ventures with international partners.

Growth

Integrated Solutions

Built on our expertise in mechanical and electrical systems, construction solutions, specialized products, and comprehensive services.

Today

Building Into the Future

Operating across ICT, medical equipment, real estate, sustainability technology, and affiliated companies that meet the needs of the modern business world.

Core Value

Our PRIDE

The guiding principles that shape how we work, make decisions, and build relationships with employees, customers, shareholders, and partners.

P

Partnership & Professional

Working together for balanced mutual benefit, while upholding professional standards, evaluation, and systematic communication.

R

Responsibility

Taking responsibility for ourselves, our organization, society, and the impact of our business operations.

I

Innovative

Initiating, creating, and developing new ways of working to increase efficiency and value for our customers.

D

Development

Continuously developing our people, processes, and business to move forward with stability.

E

Ethics

Upholding ethics, integrity, transparency, and accountability that can be verified.

Mission

Creating Opportunity Through Innovation and Our People

Delivering high-quality products and services, empowering our people to grow, and building long-term relationships of mutual benefit.

Quality Management

Quality and Security

Operating management systems certified to ISO 9001:2015 and ISO/IEC 27001:2022 to deliver professional, consistent, and secure service.

Safety Management

Safety as a Foundation

Caring for the health, safety, and wellbeing of employees, contractors, and other stakeholders by strictly complying with occupational health requirements.

Privacy Policy

Personal Data Protection

The company places great importance on privacy and the appropriate use of data, and has developed policies according to the type of stakeholder and the operational context involved.

Open the Full Personal Data Protection Policy →
01

PDPA Policy for the Company and Its Affiliates

The core policy on the collection, use, disclosure, and protection of personal data.

Open PDF → 02

Business Partners and Contractors

Guidelines for the personal data of business partners and contractors.

Open PDF → 03

Buildings and Hotels

Personal data related to building and hotel management operations.

Open PDF → 04

Company Personnel

Guidelines on personal data for employees and personnel.

Open PDF → 05

CCTV

Privacy in the use of CCTV cameras at Bangna Tower.

Open PDF →

Build the Future Together

Join Us in Building Long-Term
 Opportunity and Success

Frequently Asked Questions About Our Company