Castled Data – Customer engagement software on top of data warehouses
Hi HN, We're Frank, Abhilash, and Arun from Castled Data(https://castled.io). Castled is a Customer Engagement platform built directly on top of cloud data warehouses like Snowflake, BigQuery, Redshift, and Postgres. In essence, Castled is identical to Braze and Iterable with a crucial difference - we don't keep a copy of your customer data. Instead, we enable marketers to create audiences directly on their cloud data warehouse and engage them across channels like Email, Sms, WhatsApp, Push, and In-app notifications - no SQL knowledge, no engineering favours required. Here is a…
Castled Data – Customer engagement software on top of data warehouses launched on June 7, 2023 with 10 votes, #1,691 of 4,655 launches that month and more than 75% of that year's launches.
In plain words
Castled Data is a customer engagement platform that works directly within cloud data warehouses like Snowflake, BigQuery, Redshift, and Postgres. It lets marketers build audience segments and send campaigns across email, SMS, WhatsApp, push, and in-app notifications without requiring SQL knowledge or engineering support. Unlike traditional engagement platforms, Castled keeps customer data within the warehouse rather than copying it elsewhere, aimed at B2C companies seeking data-native marketing tools.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN, We're Frank, Abhilash, and Arun from Castled Data(https://castled.io). Castled is a Customer Engagement platform built directly on top of cloud data warehouses like Snowflake, BigQuery, Redshift, and Postgres. In essence, Castled is identical to Braze and Iterable with a crucial difference - we don't…
Does a similar job
all alternatives →- CMCastled – Marketing automation using customer data from Snowflake2023 · castled.io · ▲8
Hi HN! We are excited to share something we have been building for the last 12 months. Castled is a warehouse-native marketing platform built directly on cloud data warehouses like Snowflake, BigQuery, Redshift, and Postgres. Castled allows you to directly use the customer data in your data warehouse and engage them across different channels like Email, Sms, WhatsApp, push, and In-app - without having to copy the data to another tool. We started our journey by building an open-source Reverse ETL solution to make the warehouse data actionable to marketers. However, after talking to 100s of…





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