# Polycart Envelopes > Polycart LLC is a Bulgarian manufacturer of envelopes and printed mailing packaging for business buyers in Europe. This file is a curated guide to the company's public website. The canonical website is https://polycart-envelopes.com/. It is available in English, Bulgarian, German, Dutch and Danish. Product information is grouped by envelope or mailing application. Contact Polycart with the size, quantity, printing requirements and delivery destination for a project-specific quotation. The business contact is office@polycart-envelopes.com, telephone +359 87 842 1007. The main address is 46 Slavyanska St., 2230 Kostinbrod, Bulgaria. Legal entity: Polycart LLC; VAT ID: BG131004542. See the contact pages for current details. ## Envelope and mailing ranges - [English homepage](https://polycart-envelopes.com/): Overview of envelopes and mailing solutions. - [Commercial and office envelopes](https://polycart-envelopes.com/commercial-envelopes.html): Business, window and office envelope formats. - [E-commerce mailers](https://polycart-envelopes.com/e-commerce-mailers.html): Mailing packaging for shipping and e-commerce applications. - [Security envelopes](https://polycart-envelopes.com/security-envelopes.html): Envelopes for confidential correspondence. - [Branded mailers](https://polycart-envelopes.com/branded-mailers.html): Printed envelopes and branded mailing packaging. ## Custom projects and business information - [Custom envelope and mailing packaging](https://polycart-envelopes.com/custom-envelope-and-mailing-packaging.html): Planning custom sizes, printing and mailing packaging. - [Branded corporate envelopes](https://polycart-envelopes.com/branded-corporate-envelopes.html): Corporate stationery and direct-mail presentation. - [B2B envelope manufacturing in Europe](https://polycart-envelopes.com/b2b-envelope-manufacturer-europe.html): Information for business buyers. - [Contact Polycart](https://polycart-envelopes.com/contacts-polycart-envelopes.html): Sales contacts, addresses and enquiries. ## Language versions - [Bulgarian](https://polycart-envelopes.com/bg/): Bulgarian homepage. - [German](https://polycart-envelopes.com/de/): German homepage. - [Dutch](https://polycart-envelopes.com/nl/): Dutch homepage. - [Danish](https://polycart-envelopes.com/da/): Danish homepage. ## Optional - [XML sitemap](https://polycart-envelopes.com/sitemap.xml): Complete list of canonical pages and language alternatives. - [Robots file](https://polycart-envelopes.com/robots.txt): Published crawler access directives.