From idea
to 400+stores
From a flat in Toruń's Old Town to stores across 40+ countries. Two people, one shared obsession — making customer support instant.
Toruń — the birthplace of Copernicus, who once rethought everything. We do the same for e-commerce support.
400+
Active Shopify stores
1M+
Emails processed
83%
Automation rate
4.9/5
Customer rating
Built in Toruń.
Trusted everywhere.
By the end of 2025, Aziz and Hajer — a young married couple living in a flat in Toruń's Old Town — the city where Copernicus once looked up and rethought the entire solar system. They were doing something smaller, but just as methodical: staring at support ticket data.
The pattern was impossible to ignore. 70% of every e-commerce support queue was copy-paste. Same questions, same answers, all day, every day. Agents were exhausted. Customers were waiting hours for replies they could get in seconds.
What started as a weekend prototype became a full-time obsession. Today, Retenza is trusted by 400+ Shopify stores across 40+ countries — from small bedroom brands to enterprise merchants processing thousands of emails monthly.
Toruń → the world
From a shared flat in Toruń's medieval Old Town to customers across 40+ countries — built by two people with one obsession.
Today
Retenza Global
🛍️
400+
Active Shopify stores
📧
1M+
Emails processed
⚡
83%
Automation rate
⭐
4.9/5
Customer rating
Journey
By the numbers
Numbers that matter
400+
Active Shopify stores
1M+
Emails processed
83%
Automation rate
4.9/5
Customer rating
From Toruń to the world
The idea — Toruń
Aziz and Hajer, a young married couple living in a flat in Toruń's Old Town, notice that 70% of support tickets are repetitive copy-paste answers. They decide to build the fix. Two laptops. One obsession.
First prototype
Weekend prototype becomes a working product. First store owners test the system. Average response time drops from 3.8 hours to under 5 minutes.
400+ stores
Crossed 400 active Shopify stores across 40+ countries. Launched multilingual support (40+ languages). Thousands of emails handled every month.
What's next
Expanding to voice support, WhatsApp, and Instagram DMs. Building the best AI support platform for every channel Shopify merchants use to talk to customers.
Our values
Speed is a feature
A customer waiting 4 hours for a reply is a customer considering a refund. We build every feature with latency as a first-class concern.
AI that respects humans
Our AI assists your team — it never replaces judgement. Low-confidence replies always land in a human inbox first.
Privacy by design
Multi-tenant isolation, encrypted at rest, GDPR-compliant. Your customers' data is yours — we're just the processor.
Truly global
Your customers write in French, Polish, Arabic, Spanish. We reply in their language, automatically, from day one.
The people behind Retenza
Started in Toruń by Aziz and Hajer — a married couple with one shared obsession.
Aziz
CEO & Co-Founder
Started Retenza with his wife Hajer from their flat in Toruń's Old Town. Obsessed with making e-commerce support instant and effortless for every store owner.
Hajer
CTO & Co-Founder
The technical mind behind Retenza. Built the AI pipeline that processes thousands of support emails a day. Believes technology should quietly solve hard problems.
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