Company Profile

Intertech Specialty Glass Co., Ltd. (ISG) was founded in 1995 with an objective of establishing a glass-manufacturing company.

ISG initially began manufacturing only tempered glass and heat-strengthened glass. Our primary objective is to manufacture safety glass of the highest quality; hence, the tempered glass machine from Tamglass Ltd. in Finland, a globally acclaimed tempered glass machinery manufacturer, was selected. The machine’s optimal performance is assured through semiannual maintenance services conducted by the manufacturer. Through our commitment to deliver top-tier products, our tempered glass has attained recognition in accordance with industrial standards — TIS 965-2537 and TIS 965-2560 — from the Thai Industrial Standards Institute.

In response to the escalating need for larger safety glass panels, we acquired an expanded tempered and heat-strengthened glass machine in 2010, enabling the production of units measuring up to 2800 x 6000 millimeters. Our steadfast commitment to quality remains unwavering, which is why we opted for the machine from Tamglass Ltd., despite its higher price point in comparison to alternative choices.

Lisec C.M.I., Italy, has been meticulously chosen as the provider of the laminated glass machinery. This decision rests on three pivotal factors: the company’s established reputation for crafting excellent manufacturing glass machines, the outstanding automated system integrated within this specific machine, and its capacity to manufacture panels measuring up to 2,800 x 6,000 millimeters.

Amongst an array of choices in glass laminating films, our preference is the world’s top two manufacturers: Dupont, USA, and Solutia Inc., USA. Moreover, our laminated glass has received recognition from the Thai Industrial Standards Institute — TIS 1222-2537 and TIS 1222-2560. Our customers can then be confident in our superior product quality.

The year 2015 marked a phase of ongoing growth as we made a strategic investment in an insulated glass machine sourced from Germany, Bystronic Lenhardt GMBH, renowned for its excellence in insulated glass machinery. This advanced equipment has the capability to fabricate units measuring up to 2,700 x 5,000 millimeters, incorporating an automated process for the addition of inert gas during operations.

Our Partners

With our policy on product and service quality, our ISG products are trusted by a wide range of customers

Department Store / Exhibition Center

Siam Paragon
Central Department Store
The Mall Group
Mega Bangna
Fashion Island
Tesco Lotus
Bitec Exhibition Centre
IMPACT Arena, Muang Thong Thani


Peninsula Hotel
Grand Millennium Hotel
State Tower Hotel
Landmark Hotel
Meridien Hotel
Novotel Hotel
Movenpick Hotel


Bangkok International Hospital
Bumrungrad International Hospital
Siriraj Hospital
Rutnin Eye Hospital
Samitivej Hospital
Phyathai Hospital
Bangkhuntian Geriathric Hospital
Ubonratchathani Cancer Hospital


Porsche Showroom
Jaguar Showroom
Honda Showroom
Toyota Showroom
Mazda Showroom
MG Showroom

Residential Project

Land and House
The Cube
Regent Home
Grand Unity
The Parkland



Siam Commercial Bank
Bangkok Bank
Kasikorn Bank
Bank of Ayudhya
Thanachart Bank
UOB Bank


Government Sector

Suvarnabhumi Airport
Office of the Permanent Secretary, Ministry of Defence
Bangkok Art and Culture center
Buriram City Hall
King Mongkut’s Institute of Technology Ladkrabang