Finland's leading seal manufacturer

The first manufacturer of hydraulic seals in Finland Top-Osa Oy – now known as Top Sealing Partner – is the leading manufacturer of seals in Finland. The combination of having a vast stock of standard seals and ability to manufacture seals according to your dimensions and needs, is unparallel. We have over 30 years of experience in manufacturing seals, importing and sustainable development. We are known for looking toward the future and keeping up with new possibilities and technologies, to better serve our customers.
Our modern production machinery, state-of-the-art CNC machines, that are specially designed for machined seals and other parts from technical materials, allow us to keep up with demand. Our knowledge, motivated personel and cutting edge machinery is the key for our outstanding customer satisfaction. Our sales personel help you with the solutions to your specific needs, seals or parts made of technical polyurethanes, elastomers or plastics. Our production batch size varies from a single piece to tens of thousands. Contact us for more about our production.

In our extensive and versatile warehouse, you can also find more than 15,000 standard sealing items ready for delivery. Seals are delivered to all Nordic countries very quickly - and according to the agreed schedule.

We try to make sealing as easy as possible. We can manufacture seals according your drawings or design sealing solutions specific to your needs, measurements and requirements. A big part of our DNA is prototyping and pushing boundaries of sealing solutions together with customers.
Delivery time for custom seals are kept short, the normal delivery time is just one week and if in a hurry we can make seals in 24 hours.

Certified quality

For us, quality is more than just a word, it is part of our everyday work. In order to be able to ensure the level and development of our operations, we have wanted to guide our operations in accordance with the standards.

With the certification of our quality management system, our customers can be sure that our operations meet the requirements of the internationally widely used ISO9001:2015 standard.

Since development is continuous, we have started working towards another well-known international standard. The goal is better sealing solutions and a better future for all of us.

Service – We help you in the way you want, we are here for you so you can focus on your field of expertise.

Speed – Seals can be manufactured within a week and on the same day if necessary.

Reliability – Several suppliers for each product and raw material. Multibrand and independent.

Nordic reliability – Production in Tampere, Finland.

Top Sealing Partner - part of Nomo

Customizet service
We design and manufacture custom-made seals for customized needs.

High quality products
We are known for carefully manufactured, high-quality seals.

Extensive storage selecion
Over 15 000 standard seals ready for delivery.

Strong industry knowledge
We have been manufacturing seals ourselves for more than 30 years and have worked in the field for more than 40 years. Each of our employees is an expert in their field.

Fast delivery to the Nordic countries
We are praised for extremely fast delivery. You can even get the ordered custom-made seals shipped the same day.

Our products are used in practically all industrial sectors, for example:
• Mining industry
• Rubber industry
• Pulp and Paper
• Sawmills
• Steel industry
• Device manufacturing and maintenance
• Pharmaceutical and food industry

Machinery:
6 special seal lathes. We do not machine metals, only soft materials, elastomers, polyurethanes, plastics, PTFEs.

Contact us

Top-Osa Oy
Pyrynkatu 6
FI-33900 Tampere
+358 (0)3 383 3700
​​​​​​​top-osa@top-osa.fi

Mikko Ketola
Managing Director
+358 40 766 0834
mikko.ketola@top-osa.fi

Vili Mäkinen
Sales Manager
+358 400 689 669
vili.makinen@top-osa.fi

Ville Tuominen
Product Manager Seals
+358 40 8250 571
ville.tuominen@top-osa.fi

Jonas Lehtola
Sales
+358 40 845 8707
jonas.lehtola@top-osa.fi

Sami Vartiainen
Sales
+358 44 9755180
sami.vartiainen@top-osa.fi

Linnea Kojo
Sales
+358 40 180 7909
linnea.kojo@top-osa.fi

Eero Hakanen
Purchase
+358 50 3217917
eero.hakanen@top-osa.fi

Veli-Matti Kekkonen
Warehouse Manager
veli-matti.kekkonen@top-osa.fi

Greetings from the rest of our team in Tampere
Joosua Ikonen | Jarno Saastamoinen | Johan Marsi | Lauri Pajunen | Jukka Airissalo | Tuomas Leppälä