https://www.aerospike.com/
https://airtable.com/
https://cassandra.apache.org/
https://couchdb.apache.org/
http://hadoop.apache.org/
http://hbase.apache.org/
https://aws.amazon.com/dynamodb/
https://aws.amazon.com/products/mobile/
https://aws.amazon.com/rds/
https://www.cloudera.com/
https://www.couchbase.com/
https://crate.io/
https://dat.foundation/
Database with information available for searching & sorting
https://www.databaselabs.io/
https://www.doctrine-project.org/
https://github.com/ClusterHQ/flocker
https://www.ibm.com/cloud/cloudant
https://www.compose.com/
https://www.influxdata.com/
https://www.kinto-storage.org/
http://knexjs.org/
https://github.com/google/leveldb
https://mariadb.org/
https://www.memsql.com/
https://www.mongodb.com/
https://realm.io/
https://dev.mysql.com/
https://neo4j.com/
https://nuodb.com/
https://www.oracle.com/database/
https://parseplatform.org/
https://www.percona.com/
https://www.postgresql.org/
https://pouchdb.com/
https://www.prisma.io/
http://pumpkindb.org/
https://pusher.com/
https://redis.io/
https://www.redsmin.com/