[ramraj07]

Can you give a single example of a major tech company using nosql as its primary db for any application?

[jd_mongodb]

MongoDB hss 26500 customers worldwide (and we are one NoSQL vendor).

These customers include:

Bosch : https://www.mongodb.com/customers/bosch

HSBC : https://diginomica.com/hsbc-moves-65-relational-databases-on...

SEGA Hardlight : https://www.mongodb.com/blog/post/sega-hardlight-migrates-to...

HMRC : https://www.mongodb.com/blog/post/mongodb-microservices-help...

DWP : https://www.mongodb.com/customers/department-for-work-and-pe...

Liberty Mutual : https://www.mongodb.com/blog/post/liberty-mutual-iac-mongodb...

MetLife : https://gigaom.com/2013/05/07/with-300m-earmarked-for-tech-i...

There is a more complete list here : https://www.mongodb.com/who-uses-mongodb

That list is limited is just the customers that are willing to be public references.

Every mature NoSQL vendor has a similar list.

[jpdb]

Pretty much all of AWS and Amazon runs on Dynamodb.

Google has Firestore as one of their approved databases for internal use.

Those are ones I have first hand experience with.

I know from friends that Microsoft runs things on Cosmos.

Netflix is pretty invested in Cassandra.

[Scarbutt]

stripe