Case Study: Fortune 100 Global Telecommunications Company achieves 20% faster query performance and seamless Teradata-to-Redshift migration with Gathr

Fortune 100 telecommunications company seamlessly migrates from Teradata to Amazon Redshift

Fortune 100 Global Telecommunications Company, a US-based Fortune 100 broadband connectivity and cable operator serving more than 30 million customers, faced the challenge of migrating massive, multi-source on‑premises data workflows from Teradata and Informatica to the cloud while reducing costs, improving scalability, validating migrated data, and establishing CI/CD and scheduled data flows. They engaged Gathr to modernize their ETL and ingestion processes and support a one-time migration to a cloud-native data warehouse.

Gathr built an end-to-end pipeline that moved SFTP feeds to Amazon S3, converted data to Parquet, managed incremental loads and CDC, provided a visual drag-and-drop ETL interface, and connected staging data to Amazon Redshift (with Athena/EMR for ad‑hoc queries). The solution enabled the customer to handle 30 billion rows, improved analytical query performance by 20%, supported 40% more analytics users, increased query volume by 15%, and reduced Teradata licensing and infrastructure costs—delivering a unified, scalable, and automated cloud data platform.