What is the minimum order for custom printed envelopes?

Polycart offers flexible production runs, from small digital series to high-volume industrial offset printing for the EU market.

Do you produce custom online ecommerce boxes and mailers?

Yes, we are a direct custom online ecommerce boxes and mailers producer, providing high-quality corrugated and carton mailing solutions for e-commerce brands.

Do you deliver envelopes, pockets and mailers outside of Bulgaria?

Yes, we provide fast logistics for custom packaging to Romania, Greece, Germany, and all Central European countries.

Custom envelopes producer and cardboard pockets manufacturer

Custom Envelopes Producer & Ecommerce Mailers Manufacturer

Polycart LLC is a highly specialized custom envelopes producer and comprehensive paper and cardboard pockets manufacturer. We supply brands across Europe with premium postal solutions, ranging from standard mailing envelopes to heavy-duty courier boxes.

Custom Online Ecommerce Boxes and Mailers Producer

With the rapid growth of digital retail, ensuring your products arrive safely and stylishly is paramount. As a dedicated custom online ecommerce boxes and mailers producer, we design tailored corrugated mailers, carton pockets, and reinforced shipping boxes perfect for online retailers, subscription box companies, and fulfillment centers.

Product Category	Typical Applications	Material Options
Cardboard Pockets & Document Mailers	Contracts, photos, flat apparel, certificates, books	Rigid board, 250gsm - 400gsm Kraft & Duplex
Corrugated E-commerce Mailers	Subscription boxes, cosmetics, retail goods, electronics	E-flute, B-flute, Micro-flute corrugated board
Classic Paper Envelopes (C4, C5, C6)	Invoices, corporate communication, direct mail marketing	Offset white, Colored paper, FSC Recycled
Gusset Envelopes (Expandable)	Thick catalogs, medical files, bulky clothing items	Heavyweight Kraft (120gsm - 180gsm)

Paper and Cardboard Pockets Manufacturer Capabilities

Transform standard logistics into a premium "unboxing" experience. Our facility offers an extensive range of printing and high-end finishing options to make your mailers stand out.

Industrial Printing: High-volume Offset (Litho), Flexographic, and precision Digital printing for customized variable data.
Protective Finishes: Matte or gloss lamination for weather resistance on courier envelopes and cardboard pockets.
Luxury Embellishments: Elevate your direct mail with Hot Foil Stamping (Gold/Silver), Spot UV coating, and deep Embossing.
Functional Add-ons: Peel-and-seal adhesive strips, tear-tape for easy opening, and transparent address windows.
Sustainable Choices: FSC Certified papers, 100% recyclable corrugated board, and biodegradable inks.

Direct EU Shipping

Based in Kostinbrod, Bulgaria, we provide direct factory shipping to major European hubs including Sofia, Bucharest, Athens, Munich, and Vienna.

Request a Custom Quote