We were tired of integration being the worst part of the job.
StackSync started in 2023 in Gdańsk, built by people who had spent too long maintaining brittle pipelines between systems that should have just stayed in sync.

Why we built it
Every company we worked at treated data integration as a necessary evil. The best engineers got pulled onto glue code that no one wanted to own, batch jobs broke quietly, and two systems that were supposed to agree drifted apart between runs. We thought the model was backwards.
So StackSync is built the other way around: continuous instead of scheduled, two-way instead of one-direction, and observable instead of opaque. It reads the schema, maps the fields, and keeps your CRM and database honest with each other in real time, so the integration layer stops being the thing that wakes you up.
Where we are
We are a small, engineering-led team based in Gdańsk, Poland, serving customers across e-commerce, logistics, technology, healthcare, energy, and the public sector. Being in the EU shapes how we think about data residency and GDPR, and it is built into the product rather than bolted on.
The people behind the Sync Log.
Want to talk to the team?
We answer our own support email and would rather have a real conversation than a sales call.