Reverse ETL and data activation pioneer, acquired by Fivetran in 2025.
Census is a reverse ETL platform: it syncs modeled data out of the warehouse into the operational tools where revenue teams work — CRM, marketing automation, CS platforms, ad networks. Data and RevOps teams use it to push warehouse-computed facts like product usage scores, billing totals, and churn risk into Salesforce fields or Braze audiences, so frontline tools act on the same numbers analytics reports on. Now part of Fivetran, it completes the round trip that Fivetran's ingestion pipelines start. In the revenue stack it is the activation layer of the warehouse-centric architecture.
Which of the capability map's modules Census covers — each links to the module's own page, with every tool that supports it.
| Module | Phase | Depth | Note |
|---|---|---|---|
| Grow Revenue | |||
| Reverse ETL | Retention & Insights | Core | warehouse-to-SaaS syncs defined on SQL and dbt models with diff-based updates |
Census helped define the reverse ETL category and remains one of its most mature implementations, with SQL- and dbt-model-based sync definitions, diff-based updates, and observability on what changed where. Inside Fivetran, it offers ingestion and activation from one vendor, which simplifies the composable-CDP stack for teams that would rather not assemble it piecemeal.
It moves the metrics your warehouse already computes — usage, spend, health, fit scores — into the tools where sellers and CS actually operate. Without it, those numbers live in dashboards nobody opens mid-call.
A packaged CDP collects and stores customer data in its own infrastructure; Census assumes your warehouse is the source of truth and only handles activation. The warehouse-native approach avoids duplicating data and logic, provided you have data engineering capacity to model it.