Asphalt Additives

High quality additives with very good track record.

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GMP+ certified additives

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Food Additives

Micronutrients, extracts, aminoacids and much more

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Polymers and Additives

Organic peroxides, plasticizers, resins, moulding compounds...

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All products

Asphalt Additives

Cosmetics, Cleaning & DEET


Food Additives

Organic Peroxides


Polymers and Additives

Silicones and Silanes


About us

Porta s.r.o. was established in 1994 and became one of important suppliers of speciality chemical additives, especially for chemical, pharma, cosmetic and food industry. Porta represents many well-known producers, especially from European Union, USA, Japan, China and India. We strive for the best possible technical and commercial service to our customers as well as long-term relationship with our partners and continuous natural growth of the company.

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Bank account change

Dear business partners,

we would like to inform you about the change of the bank account number of our company PORTA s.r.o.

The new bank account number is 5091104640/5500 and is effective for invoices issued by our company as from 1st January, 2021. Payments relating to invoices issued before this date can be made both to the old number indicated on the invoice as well as to the new account number.

The account number stated is the same for all currencies without distinction.

If you have any questions do not hesitate to contact us.


Successful recertification

On August 12-13 2020, our company successfully passed the recertification audit ISO 9001: 2015 and GMP + B3.
The certificates were issued by Lloyd’s Register Quality Assurance for another 3 years.



Dear business partners, due to the COVID-19 situation in our country we started to work from the home offices as from 16th of March. Please note our access to the email and phones might be limited.

+420 241 091 211

Zelený pruh 99
140 02 Praha 4
Czech Republic