What Wunderpen does

Wunderpen GmbH is a Berlin-based technology company, founded in 2015 as Wundercards UG and rebranded in 2016, that automates handwritten mailings using a proprietary robotic platform in which real pens write on real paper. The system combines precision mechanics with AI-driven variation algorithms to ensure each piece is visually unique. Wunderpen has deployed 100+ writing robots in its Berlin Reinickendorf production site, can produce up to 2 million pieces per campaign, and delivers up to 40,000 pieces weekly. Since 2016 the company has produced more than 12 million handwritten pieces and reports conversion rates up to 126% higher than printed mailings and a 99% read rate, as validated by the CMC Dialogpost study with Deutsche Post.

The product portfolio spans three delivery channels: (1) Wunderpen Business, a consulting-led full-service offering for enterprise campaigns with a €3,000 minimum budget and 1,000+ pieces, including consultation, design, lettershop, and dispatch; (2) Wunderpen Webshop, a self-service e-commerce platform launched in 2024 enabling orders from a single piece; and (3) a custom API for event-triggered recurring mailings (birthdays, thank-yous, apologies) on annual contracts integrated with customer databases. Formats include DIN A6 and DIN Lang postcards and folded cards, A4 and A5 letters, executive briefs, vouchers, tags, and specialty envelopes, with a library of 10+ handwriting styles plus a custom digitization service. Revenue is unit-priced (approximately €1.50 per piece plus postage for large orders), transaction-priced on the webshop, and subscription-priced for API recurring mailings.

Wunderpen serves 1,000+ customers across cosmetics (L'Oréal, Kiehl's), automotive (Audi Stuttgart, Autohaus Berolina), technology (SAP, Brother), telecommunications (Tele Columbus/PYUR), pharmacy (Shop Apotheke), consumer products (FLSK), footwear (Shoepassion), floral (Fleurop), and other verticals. The company operates with 46 employees representing 12 nationalities, is GDPR-compliant, and was acquired in June 2023 by Mass Customisation Group (MCG), part of the Schürfeld Group. It is currently led by co-CEOs Ahmad Taleb and Markus Stricker alongside Managing Director Andreas Schäfer. The company was self-funded and profitable from 2016 through 2023 prior to the MCG transaction.

Name

Wunderpen

Legal name

Wunderpen GmbH

Website

https://wunderpen.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

Wunderpen GmbH is a Berlin-based technology company that uses proprietary robotic systems and AI variation algorithms to automate authentic handwritten mailings at scale for B2B customers, SMBs, and individual buyers across Europe.

Ownership category

akta.pro rank

Product category

Direct Mail Marketing Services

NAICS

Direct Mail Advertising (541860), Document Preparation Services (561410)

SIC

Services-Direct Mail Advertising Services (7331), Commercial Printing (2750)

akta.pro primary industry

Mailing, Inserting & Distribution Services (Addressing, Direct Mail, Kitting) (MPAJALAH)

akta.pro secondary industry

Variable Data & Personalized Print (ID Cards, Mailers, Certificates, Labels) (EDAEAJAF)

Keywords

• Automated handwriting mailings
• Direct mail services
• Robotic handwriting technology
• Personalized mail marketing
• Handwritten customer communication

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Full-Service Handwritten Mailing Projects: Comprehensive service including consulting, design, production, and lettershop operations. Minimum budget of 3,000 EUR. Includes professional campaign management, stakeholder coordination, and quality assurance.
2. Webshop Self-Fulfillment: Self-serve e-commerce platform for small runs starting at 1 piece. Customers design and order standardized products online with live preview and data upload.
3. Automated Trigger Mailings via API: Automated personalized mailings triggered by specific events (birthdays, purchases, milestones). Recurring revenue through annual contracts with enterprise clients connected via API.
4. Print Materials and Postage: Additional revenue from certified printing materials and postage services for letter shipping.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels4 records

Core offering

Wunderpen automates the production of authentic handwritten mailings at scale using a fleet of 100+ robotic writing machines that use real pens and ink on paper. The company offers a full-service managed solution for large B2B campaigns (from EUR 3,000 budget, 1,000+ pieces) and a self-serve webshop (shop.wunderpen.com) for small orders starting at 1 piece, plus API integrations for recurring trigger-based mailings such as birthday, thank-you, or apology notes connected to customer databases.

Product overview

Wunderpen offers a dual-channel product portfolio: Wunderpen Business (Full Service) is a managed service for large-scale automated handwritten mailing campaigns, providing end-to-end support from consultation and design through writing, lettershop, and dispatch, with custom API integrations for recurring trigger-based mailings starting at EUR 3,000. Wunderpen Webshop (Self-Fulfillment) is a self-service online platform for small-run projects starting from 1 piece, allowing customers to independently design, preview, and order standardized handwritten products. Both channels are powered by the same underlying handwriting robot technology, which uses AI and proprietary algorithms to generate unique, non-repeating handwritten text on real paper with real pens. The product portfolio also includes a collection of 9+ pre-defined handwriting styles (Lydia, Anna, Enrico, Odile, Janny, Simone, Poline, Stefan, Fritz), custom handwriting digitization, multiple physical format options (postcards in DIN A6/Lang/Maxi sizes, folded cards, executive letters, and special envelope/voucher/tag formats), and writing instrument options (ballpoint, fountain pen, rollerball, gel pen, felt-tip, pencil). The technology scales to up to 2 million pieces with a network of over 100 writing robots.

Differentiator

Problem solved

Functional benefit

Products and services

• Wunderpen Business (Full Service) Full-service managed handwritten mailing offering for large B2B campaigns (customized from 100 pieces; full service from EUR 3,000 budget). Includes professional consultation, project management, campaign design, handwriting style selection, writing with real pens, lettershop (quality control, enveloping, frankation, dispatch), and a dedicated account manager. Suitable for one-time campaigns and recurring automated mailings triggered via API.
• Wunderpen Webshop (Self-Fulfillment) Self-service online platform (shop.wunderpen.com) enabling customers to design, preview, and order small-run handwritten mailings independently starting from 1 piece. Customers choose standardized product formats (postcards, folded cards), select handwriting styles and writing instruments, upload recipient data, and preview designs live before ordering — without requiring consultation.
• API Integration for Automated Mailings Custom API connection enabling businesses to trigger automated handwritten mailings directly from their customer databases. Supports event-driven messaging such as Happy Birthday, Thank You, and Sorry notes sent automatically based on database events, with numerous customer-specific integrations developed on a per-customer basis. Sold via annual recurring contracts.
• Postcard Formats (DIN A6, DIN Lang, Maxi) Standard postcard formats for open-display handwritten communication: DIN A6 Postkarte (125–225 characters, 1–2 min writing time), DIN Lang Postkarte (200–350 characters, 2–3.5 min writing time), and Maxi Postkarte (225–250 characters, 3–4 min writing time). Physical paper cards written by Wunderpen robots.
• Envelope Formats (Folded Cards, Executive and Classic Letters) Envelope-based formats for private 1:1 communication with 99% open rates: DIN A6 Klappkarte (200–400 characters, 2.5–3.5 min), DIN Lang Klappkarte (300–500 characters, 3–4.5 min), DIN A5 Executive Brief (200–275 characters, 2–3 min), and DIN A4 Brief Classic (400–600 characters, 3–5.5 min).
• Special Formats (Premium Envelopes, Inserts, Vouchers, Tags) Specialty handwritten formats including envelopes with special colors (silver, gold, custom corporate design), package inserts and welcome cards (200–500 characters, 2–4 min), special voucher formats (200–750 characters, 2–6 min), and tags/labels with lettering and calligraphy for premium products.
• Handwriting Styles Collection & Custom Digitization Collection of more than 10 pre-defined handwriting styles (Lydia, Anna, Enrico, Odile, Janny, Simone, Poline, Stefan, Fritz, and others) customers can select for their mailed pieces. Also includes a Handwriting Digitization Service that digitizes a client's own handwriting (for exclusive availability) or develops entirely new custom handwriting styles tailored to specification.

Quantifiable outcome

• Up to 126% higher conversion rates compared to printed mailings (CMC Dialogpost study with Deutsche Post)
• +3 more outcomes

Named customers11 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability4 records

Feature4 records

Partnerships

Three partnerships are on record, tiered core.

• Mass Customisation Group (MCG)coreOthers · 1 June 2023Parent company acquired by Wunderpen in June 2023. MCG belongs to Schürfeld Group, which specializes in investments in paper, printing, and advertising companies. Strategic acquisition to expand within the mass customization ecosystem.
• Fleurop AGcoreGTM or Marketing Partner · 21 September 2020Joint marketing campaign under the motto 'Riechen, Fühlen, Messen' (Smell, Feel, Measure). Combined handwritten cards with flower deliveries for B2B corporate clients. Demonstrates sensory marketing approach combining tactile handwritten communication with floral gifting. Joint case study on customer appreciation and retention.
• Deutsche PostcoreStrategic or Co-development Partner · 1 January 2020Collaborative study (CMC Dialogpost-Studie 2020) conducted by Collaborative Marketing Club (CMC) in collaboration with Deutsche Post. Validated that handwritten mailings achieve up to 126% better conversion rates than printed mailings. Third-party research partnership providing credibility for performance claims.

Scale indicators9 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Handwrytten: US-based automated handwritten mailing service using robotic pen technology. Most direct global competitor to Wunderpen, offering similar handwriting-as-a-service for businesses, with comparable technology (AI handwriting styles, API integration, and CRM-triggered mailings).

Broad incumbents

• Reachdesk: B2B direct mail and gifting platform that automates physical mail sends via API integration with sales/marketing stacks. Competes with Wunderpen for enterprise trigger-based mailing budgets, though uses printed/packaged formats rather than robotic handwriting.
• Lob: Programmatic direct mail API platform enabling developers to trigger personalized printed mail at scale. Targets the same API-first, CRM-integrated use cases as Wunderpen's API product, though relies on commercial printing rather than robotic handwriting.
• Click2Mail: Online mailing services provider offering self-serve direct mail production and distribution for SMBs and enterprises. Competes with Wunderpen's webshop channel for small-run, on-demand mailings using standard print rather than handwriting.
• Knock: B2B gifting and direct mail platform automating personalized sends to prospects and customers. Competes with Wunderpen for trigger-based enterprise gifting/mailing budgets with a focus on physical gifts and printed notes.
• Sinch (Postal Services / Direct Mail): Global communications platform with direct mail and postal messaging capabilities, including letter production and delivery at scale. A large incumbent that competes at the high-volume, lower-customization end of the same market.

Emerging players

• Postable: Online greeting card service with handwriting font options for personal and small-business use. Addresses the lower end of the personalized mailing market that overlaps with Wunderpen's webshop self-serve offerings.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/wunderpen
• LinkedInlinkedin.com/company/wunderpen-berlin
• Instagraminstagram.com/wunderpengmbh

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

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 Wunderpen