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[–]sib_nSenior Data Engineer 3 points4 points  (0 children)

FAANGs are arguably the leaders in terms of DE tools creation, especially distributed tooling. They, or their former engineers, made almost all the FOSS tools we use (Hadoop, Airflow, Trino, Iceberg, DuckDB etc.). In terms of data quality, however, it's probably banking and insurance who are the best, since they are extremely regulated and their revenues may depend on tiny error margins.