BRIGHT INNOVATION
– THE NEW DIRECTION OF GLASS PROCESSING

tambest

Tambest, kuvituskuva Lasikukka, kesän aukioloajat

Summer opening hours 2025

Tambest Oy’s factory will be closed for the summer holiday during weeks 30–31 (July 21 – August 3, 2025). We will resume normal operations on Monday, August 4.

Wishing you a relaxing and sunny summer!

HIGH-QUALITY GLASS TECHNOLOGY

Tambest Oy is a leading glass factory with a high degree of processing, which was founded in 1984. Modern production machines together with continuous product and operating method development guarantee top-quality glass products for even the most demanding needs. Our modern factory is located in Forssa, along Highway 2, with good transport connections.

FLOAT
SAFETY GLASS

Safety glass protects people and property from damage, and it is made by laminating, tempering or combining these types of glass. Safety glass is used in sites where additional protection from vandalism or fall risks is needed. Tambest Oy uses only high-quality raw materials and tested products in glass processing.

CURVED
SAFETY GLASS

Tambest Oy’s glass bending expertise is top class in the world. Innovative, modern and versatile production machinery, combined with the staff’s experience in glass bending, guarantee the first-class dimensional accuracy and optical quality of our products.

BALLISTIC GLASS
AND PROTECTION

Bulletproof glass, commonly called bullet protection glass or ballistic glass, is made of transparent materials specially designed to withstand the penetration of bullets. Tambest Oy’s product development aims for the lightest bulletproof structure on the market, and currently we have tested the BR 4 and BR 6 level products.

CONTRACT MANUFACTURING

We manufacture products with a high processing value in line with the customer’s needs as a serial production. Production is characterised by batches of a certain size, or periodical production.  Products can also be made to the warehouse, from where the customer calls the orders according to their own production.

RESPONSIBILITY

 

Tambest Oy follows a comprehensive responsibility programme in all its operations. Environmental responsibility is the core of our production. All glass waste is directed to Uusioaines Oy for processing and film waste to industrial reuse. We participate in the HAMK waste stream programme and in the Finland Chamber of Commerce’s carbon footprint calculation programme.

QUALITY
ASSURANCE

We maintain manufacturing and quality assurance resources to ensure the high quality of products throughout their life cycle. We feel it is our responsibility to meet our customers’ expectations of a high level of quality and delivery reliability, and it is an honour for us to exceed our customers’ expectations.

News

10.6.2025 | Tambest participated in GPD 2025 on June 10–12 at Nokia Arena, Tampere

GPD brings together professionals from across the glass industry – researchers, architects, designers, manufacturers, processors, equipment suppliers, and end users – creating a unique environment for collaboration and inspiration.

9.6.2025 | Minister Sanni Grahn-Laasonen visited Tambest

During the visit, we showcased the best of Finnish glass expertise: glass products for the defense industry and curved glass solutions that combine safety, design, and technical know-how. We also discussed the importance of domestic manufacturing, exports, and the future outlook of the industry.

2.6.2025 | Member of Parliament Hilkka Kemppi and Forssan Yrityskehitys Oy

During the visit, we discussed the future outlook of the industry and the importance of Finnish expertise in ensuring security of supply.

29.4.2025 | First client of 6G Test Centre: Tambest develops bulletproof, signal-protected glass

The 6G Test Center at the University of Oulu Finland has commenced testing services for corporate clients. The first client is the Finnish glass processing factory Tambest which also has export operations.

24.4.2025 | We’re participating in FRUSH 2025 in Forssa on April 24th

Sustainability is not just a word for us – it plays an increasingly central role in Tambest’s operations and decision-making. We’re participating in FRUSH 2025 in Forssa on April 24th, held at HAMK’s campus, where we’ll dive into how sustainability is reshaping business and opening up new opportunities.

27.2.2025 | Tambest was selected as one of the most promising defense tech startups in the Nordic region.

Along with twelve other companies, Tambest participated in the Define Accelerator’s Fall Batch Demo Day at the Define Innovation Hub in Riihimäki, Finland, in February 27, presenting its glass solutions.

18.1.2025 | Tambest is participating in the SecD-Day fair on January 29-30, 2025, at the Helsinki Exhibition and Convention Centre

SecD-Day presents Finnish technological innovations and know-how in the field of defense, security, space and aviation.Welcome to our booth no 5s2, in hall 5!

7.11.2024 | Tambest manufactures high-quality multi-layer laminated burglary- and bullet-resistant glass for demanding environments

With years of experience in producing laminated multi-layer glass, Tambest provides a variety of security glass solutions, including curved options that enable the design of architecturally impressive and secure spaces.

showcase of our projects

tambest-wrocklavia-kauppakeskus

SHOPPING CENTRE WROCKLAVIA

The thermally insulated argon-filled curved tempered facade glass was realised for the largest facade builder in Poland, Defor, which belongs to the large French Goyer group.

tambest-hotel-sofitel

hotel sofitel

Hotel Sofitel is an upscale hotel operating in Paris, France. Tambest implemented curved 2K facade insulating glass for the project, using SaintGobain reflective glass as glass.

tambest-kaareva-lasi

THE DEUTSCHES HISTORISCHES MUSEUM

The Deutsches Historisches Museum is a national historical museum of Germany presenting German history in Berlin. The site was designed by architect I. M. Pei, and the facade of the building is dominated by challenging, cone-shaped argon-filled insulating glasses.

tambest-Oodi-julkisivu-kaareva

CENTRAL LIBRARY OODI

Helsinki’s central library Oodi is a city library branch in Helsinki near Töölönlahti, on the edge of Kansalaistori square. Oodi’s curved facades contain both concave and convex insulating glasses. As glass, it has the iron-free Guardian climaquard argon-filled laminated coated glasses.

{

WHAT OUR CUSTOMERS AND PARTNERS ARE SAYING ABOUT US

"Deliveries are also possible with a quick schedule. The quality is always perfect, and the packaging is also handled professionally. The glass can also be packed in the customer's own transportation trestles. The customer's needs are listened to well, and it is easy to develop things and products together. Tambest is Finland's number one producer of processed glass."

KAI JAAKKOLA
Installation Director, Raami Nordic Oy

"The cooperation went smoothly and you were clearly interested and willing to deliver glasses suitable for the site. So, in all respects, cooperation with you in this project was a positive experience."

LINNA-LASI OY

"Reliability is a key word for us. Tambest has shown us that they are capable on all keys. Quick response, service, quality, competitive and reliable delivery time. We can endorse them as supplier."

CLAUS HØVENHOFF
Glascom

"Our collaboration with Tambest with ballistic goggles works extremely flexibly. We ourselves produce ballistic non-transparent protective materials for our customers for use in vehicles, ships and various temporary structures. These are often also accompanied by the need for transparent ballistic protection. Tambest offers us a domestic quality product, with which we can offer our mutual customers protection packages. Tambest implements the necessary product development efficiently and responds to special needs even on a fast schedule."

JUHA KYLÄ-HARAKKA
Business Development Manager (Col ret),
C.P.E Production Oy

“A reliable partner with flexible delivery times and innovative products.”

VILLE PELTONEN
Operative Director, Scanmikael Oy

"Cooperation with Tambest is really smooth and your flexibility is amazing! Tambest brings the greatest value to Vetrospace with flexible deliveries and customised glasses. This is strategically significant for deliveries of customised and specially sized cleanrooms. Tambest's customer promise is 110 per cent customer service in the eyes of Vetrospace. "

JESSE TUOMI
Production Manager, Vetrospace Oy

"We have cooperated with Tambest for a year and the service has been good, the quality of the glasses excellent and the deliveries have taken place on time and as agreed. "

JOUKO URPOLAHTI
Blocko Design

Responsibility

Tambest Oy follows a comprehensive responsibility programme in all its operations.

Environmental responsibility is the core of our production. All glass waste is directed to Uusioaines Oy for processing and film waste to industrial reuse. We also accept glass waste from our customer companies.

We participate in the HAMK waste stream programme, which aims to reduce material waste and energy use in manufacturing. The carbon footprint of our operations has been calculated. 99.9 per cent of waste glass is recycled, and 99.8 per cent of the interlayer film is recycled.

tambest-lamilinjasto-vastuullisuus

Our ethical responsibility guides our activities to ethical principles and moral conduct in business. It includes honest communication, anti-bribery activities, supporting fair competition and ensuring the ethical production of products or provision of services.

At Tambest, financial responsibility means responsible management and use of financial resources. It covers honest accounting, risk management, investment responsibility and transparent management practices.

QUALITY ASSURANCE

We maintain manufacturing and quality assurance resources to ensure the high quality of products throughout their life cycle.

The products and the company’s entire operations are in accordance with the authorities’ instructions and legislation, and our operations are in accordance with the requirements and principles of the ISO 9001 standard and the product-specific standards that apply to our operations.

We maintain manufacturing and quality assurance resources to ensure the high quality of products throughout their life cycle. We feel it is our responsibility to meet our customers’ expectations of a high level of quality and delivery reliability, and it is an honour for us to exceed our customers’ expectations.

tambest-lamilinjasto-vastuullisuus

Tambest Oy – certified manufacturer of SentryGlas® laminated glass, experts in complex glass structures

SentryGlas_sertifikaatti_Tambest

Tambest Oy is a certified manufacturer of SentryGlas® laminated glass, and our machinery and expertise allow us to create even the most challenging glass structures.

The SentryGlas® interlayer from the Kuraray’s AIS Structural product family is five times stronger and up to 100 times stiffer than conventional laminating materials.  With this kind of strength, the glass can be a more active structural element in the building envelope, opening up design possibilities that didn’t exist before.

Besides its strength, SentryGlas® ionoplast interlayer retains its clarity – even after years of service. Unlike other interlayers, SentryGlas® ionoplast interlayer is much less vulnerable to moisture exposure or yellowing over time.

CONTACT US