Zelena Posta

What Zelena Posta does

Zelená pošta (legal entity: ZPC Group, s. r. o.) is a hybrid mail and electronic delivery platform founded in 2012 in Bratislava, Slovakia, and operating across Slovakia and the Czech Republic through its subsidiary Zelená pošta CZ s.r.o. The platform enables businesses, municipalities, and individuals to upload documents digitally — via a web portal, the Zelená tlačiareň web/desktop application, or direct API integration — which Zelená pošta then prints, envelopes, and physically hands to Slovenská pošta (or partner postal operators) for last-mile delivery. Its own production facility in Bratislava operates one of the largest printing and distribution centers in Central Europe, with capacity exceeding 380 million documents and 88 million envelopes per year, processed entirely through automated lines without human intervention. In parallel, the platform offers electronic delivery (Elektronické doručenie), integration with the Slovak national electronic mailbox (Databox/ISDS) for official government communications, OCR-based extraction from received mail, and an API2 service (REST + SOAP, OAuth 2.0) connecting enterprise systems (SAP, Helios, Pohoda) and software partners (ANASOFT DOMUS) to fully automate outbound correspondence.

The company monetizes through per-letter transaction fees (€1.76 ordinary, €3.33 registered, €4.70 registered with advice of delivery, all-inclusive of print, envelope, and postage), with volume discounts, prepaid credit, and monthly invoicing (NET-14) available for clients sending 500+ shipments per month. Custom pricing, account management, and integration services are offered to enterprise and municipal accounts, alongside bespoke direct-mail campaign services (design, database build, print, mail) for agencies and marketing teams. GTM is hybrid: product-led self-serve via portal.zelenaposta.sk and printer.zelenaposta.sk (with free first letter and a €50 30-day credit for new business accounts), API-led for ERP/accounting integrators, and sales-led for high-volume enterprise and municipal accounts. Customers include NN Insurance, BVS (water utility), ANASOFT (channel partner covering 250+ property management clients and 600,000+ managed spaces), Mesto Trnava, Slovenské elektrárne, Slovak Telekom, Komerční banka, Colonnade Insurance, and nonprofit Červený nos and Dobrý anjel.

The business is part of the Cromwell Group, a registered postal operator with the Slovak Regulatory Office for Electronic Communications and Postal Services, and maintains ISO/IEC 27001:2022, ISO 9001:2015, ISO 14001:2015 certifications, EU NIS2 compliance, and operates from a BREEAM-Excellent-certified office in Bratislava. Distribution of physical mail is conducted through partnership with Slovenská pošta. As of mid-2025, the platform had sent over 25.4 million letters cumulatively, with cumulative volume more than doubling from 11.5M in 2022 to 24.5M by 2024; a major product refresh was launched in 2025 (new website, redesigned Zelená tlačiareň, new user account design).

Name

Zelena Posta

Legal name

ZPC Group, s. r. o.

Website

https://zelenaposta.sk

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

11–50 employees

Short description

Hybrid mail platform based in Bratislava enabling businesses, government organizations, and individuals to send physical letters via digital upload, API, or the Zelená tlačiareň app. Operates in-house high-capacity printing facilities processing 380M+ documents annually across Slovakia and Czech Republic.

Ownership category

akta.pro rank

Product category

Hybrid Mail Services

NAICS

Direct Mail Advertising (541860), Advertising Material Distribution Services (54187), Postal Service (491)

SIC

Services-Direct Mail Advertising Services (7331), Services-Mailing, Reproduction, Commercial Art & Photography (7330)

akta.pro primary industry

Direct Mail Marketing Services (Print, Postcard, Dimensional Mail) (BPAFAKAH)

akta.pro secondary industries

Direct Mail / Marketing Mail & Bulk Mail Services (TLAAAAAJ), Post Office Network & Retail Counter Services (TLAAAAAF)

Keywords

• Hybrid mail services
• Print and mail
• Postal automation
• Direct mail campaigns
• Electronic document delivery

Headquarters

HQ city

Bratislava

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Supply Chain, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Per-Transaction Postal Fees: Customers pay per letter sent, with pricing tiers based on monthly volume (1-499 shipments vs 500+ shipments/month). Pricing includes printing, envelope, and postage in one fixed rate. Volume discounts offered for high-frequency senders. Additional fees for registered/certified mail, color printing, and premium paper.
2. Prepaid Credit and Invoice Billing: Clients can prepay credit via payment gateway or bank transfer, or opt for monthly invoicing (postpaid) for volumes of 500+ shipments/month. Credit-based model allows flexible usage with automatic deduction. Monthly invoicing provides NET-14 payment terms for enterprise clients.
3. API Integration and Implementation Services: Custom integration projects connecting enterprise ERP/accounting systems (SAP, Helios, Pohoda) via API. Setup fees and ongoing per-use API fees for high-volume automated senders. Dedicated IT support included for enterprise API clients.
4. Customized Advertising and Commercial Mail Campaigns: Full-service direct mail campaigns including design, database building, printing, and mailing for marketing purposes. Custom pricing for ad-hoc campaigns or ongoing marketing partnerships with agencies and businesses.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels6 records

Core offering

Zelena Posta (Zelená pošta) operates a hybrid mail platform that converts electronically submitted documents into printed, enveloped, and physically delivered letters via postal operators. Customers upload documents through a web portal, the Zelená tlačiareň web/desktop application, or via API2 integration from enterprise systems (SAP, Helios, Pohoda). The company also offers advertising and commercial mailing campaign services and an electronic delivery (eDelivery) capability integrated with the Slovak national databox (ISDS) system.

Product overview

Zelena Posta is a hybrid mail service that converts electronic documents into physical letters delivered via postal service. The platform consists of a web portal for account management and single letter sending, the Zelená tlačiareň application (available as web and desktop versions) for bulk letter processing with automatic address reading, API2 for enterprise system integration with ERP and accounting software, and advertising/business mailing services for marketing campaigns. The company processes over 380 million documents and 88 million envelopes annually through high-capacity printing facilities, making it one of the largest printing and distribution centers in Central Europe.

Differentiator

Problem solved

Functional benefit

Brands

• Zelená tlačiareň: Web-based and desktop application for batch letter sending, allowing users to upload documents via Drag&Drop, automatically read recipient addresses from PDFs, and manage mass correspondence.
• Hybridná pošta
• Elektronické doručenie

Products and services

• Zelena Posta Online Letter Sending Core hybrid mail service for sending ordinary and registered letters (invoices, contracts, payment reminders, certified with advice of delivery). Customers upload documents via web portal, application, or API; Zelena Posta prints, envelopes, and physically submits them to the postal service for delivery.
• Zelená tlačiareň (Green Printer) Web and desktop application for bulk letter sending with Drag&Drop upload, automatic address reading from PDF documents, template management, batch splitting, and recipient merge for personalized mailings. Designed for users sending hundreds to thousands of letters monthly.
• API2 Integration Platform REST and SOAP API for enterprise system integration with ERP (SAP), accounting (Helios, Pohoda), and property management (ANASOFT DOMUS). Supports OAuth 2.0, basic auth, and token-based authentication; Czech PostServis-compatible endpoints. Enables fully automated correspondence workflows.
• Advertising and Commercial Mail Campaigns Full-service direct mail campaign offering for marketing professionals and agencies, including design, database building, printing, and mailing of promotional materials such as flyers, postcards, catalogs, letters, and brochures.
• Desktop Application Zelená tlačiareň Installable desktop application (Windows and Linux) that lets users drag documents directly from their desktop to send through Zelena Posta, complementing the web-based Zelená tlačiareň.
• Electronic Mailbox (eDelivery / Databox Integration) Electronic delivery service enabling digital document delivery to user accounts, with integration to the Slovak national Databox (ISDS) system for official electronic government communications.

Quantifiable outcome

• 25,389,488+ letters sent since inception
• +4 more outcomes

Named customers10 records

Segments7 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature6 records

Partnerships

Four partnerships are on record, tiered core.

• Slovenská pošta, a.s.coreChannel Partner/ Reseller/ DistributorSlovenská pošta is the primary postal delivery partner for Zelená pošta. As part of the Cromwell Group (a registered postal operator), Zelená pošta hands over physical mail items to Slovenská pošta for last-mile delivery across Slovakia. The partnership is regulated under Act No. 324/2011 Z.z. on postal services.
• Cromwell a.s.coreStrategic or Co-development PartnerCromwell a.s. is the parent company/group. Zelená pošta is part of the Cromwell Group, which is a postal operator registered with the Regulatory Office for Electronic Communications and Postal Services. Cromwell provides the regulatory and operational umbrella for Zelená pošta's activities in Slovakia.
• Zelená pošta CZ s.r.o.coreChannel Partner/ Reseller/ DistributorCzech subsidiary of Zelená pošta, enabling service delivery to the Czech Republic market. Located at Kodaňská 1441/46, 101 00 Praha 10. API gateway available at gateway.zelenaposta.cz.
• ANASOFTcoreTechnology or IntegrationANASOFT integrated Zelená pošta into its DOMUS property management system (managing 600,000+ spaces in Czech Republic and Slovakia). Through this API integration, 250+ ANASOFT customers can automatically send property statements, reminders, and notices via Zelená pošta without manual processing.

Scale indicators7 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Lob: US-based print and mail API platform. Closely aligned business model: digital document submission, automated print-and-mail fulfillment, REST API, and integration with enterprise systems for direct mail and transactional communications.
• PostGrid: Print and mail API provider for transactional and direct mail, with address verification and certified mail. Comparable enterprise and SMB positioning through web/app/API delivery channels, similar pricing model (per-letter).
• Click2Mail: US hybrid mail service offering online letter sending, bulk mail, and API integration. Direct competitor for self-serve and small-batch hybrid mail customers with similar per-piece economics.
• NetDespatch: UK-based shipping and mail API for postal and parcel operations. Comparable technology-first hybrid mail model with carrier integration and enterprise system connectivity for automated correspondence.
• PrintMail: US-based print-to-mail service bureau focused on documents and statements for enterprise and SMB customers. Same operational concept (digital submission, print, envelope, postal delivery) with a more traditional BPO delivery model.
• DocuSend: US statement and invoice mailing service with API/web upload for documents. Direct parallel in B2B digital-to-print-and-mail for statements, invoices, and other recurring transactional correspondence.

Regional players

• Spring GDS (CTT): Portuguese hybrid mail API developed by national postal operator CTT. Comparable regulated-postal hybrid mail model serving European markets with delivery confirmation, certified mail, and API access — analogous to Zelena Posta within the Cromwell Group umbrella.

Broad incumbents

• Česká pošta (Czech Post): National postal operator of the Czech Republic with its own hybrid mail and online letter services. Competes for the same Czech enterprise/government customers Zelena Posta serves via Zelená pošta CZ, while also being a potential distribution partner analogous to Slovenská pošta.
• Slovenská pošta: Slovak national postal operator — Zelena Posta's primary last-mile delivery partner AND a strategic competitor (owns its own direct mail channels). Within Cromwell Group technically, but operationally both supplier and rival.

Emerging players

• Lettre Connect (Lettre.fr): French electronic registered letter service targeting B2B correspondence and certified communications. Comparable niche focus on regulated electronic/physical mail correspondence, though more focused on French eIDAS-aligned electronic delivery.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/zelenaposta.sk
• LinkedInlinkedin.com/company/zelenaposta

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Zelena Posta