Ethereum in Google BigQuery
https://cloud.google.com/blog/products/data-analytics/ethereum-bigquery-public-dataset-smart-contract-analytics

Dune
https://dune.com/browse/dashboards

bitquery
https://bitquery.io/

AWS Public Blockchain Data
The AWS Public Blockchain Data provide datasets from the Bitcoin and Ethereum blockchains. The blockchain data is transformed into multiple tables as compressed Parquet files partitioned by date to allow efficient access for most common analytics queries.
https://registry.opendata.aws/aws-public-blockchain/

Allium
https://app.allium.so/

Example: https://app.allium.so/s/BwUpzg6q

Glider
https://glide.r.xyz/
Glider is a code query engine designed to run variant and data analysis on smart contracts by providing a framework that allows anyone to query contract code as one would do with data.

https://docs.r.xyz/main by Remedy

Clickhouse is known to have amazing query performance.

• https://clickhouse.com/blog/announcing-cryptohouse-free-blockchain-analytics
• https://github.com/ClickHouse/examples/blob/main/ethereum/schemas/transactions.md

GhostLogs
Infrastructure to inject and monitor gasless events into existing smart contracts with GhostLogs
https://tryghost.xyz/

shadow.xyz
Write shadow events for any contract
https://www.shadow.xyz/

https://envio.dev/
Transform blockchain data into production-ready APIs in minutes, not days

live indexing of blockchain events given a contract address:

• Found 33,265 events from the contract creation
• Expected historical backfill time: ~3326ms