Who's Using Scala?

In the following lesson, we will go over Scala's prominence in the industry.

We'll cover the following

In the previous lessons, we discussed why Scala is a ‘better’ programming language. From being a multi-paradigm and strongly statically typed language to allowing the writing of concise and readable code within JVM, Scala appears to give enough reasons for why you should learn it. However, is Scala prominent in the industry?

Let’s look at some of the companies using Scala.


The LinkedIn Web site was launched in 2003 and is now the largest professional networking site in the world with more than 65 million members, representing 200 countries and executives from every Fortune 500 company. It switched to Scala in 2009.


Twitter is an extremely popular live message service with over 70 million users. As Twitter has scaled up its services, it has moved its main message queue from Ruby on Rails to Scala for better performance in 2009.


Foursquare is a location technology platform which is constantly growing. As its user-base rapidly grew, it has moved all its services to Scala/Lift based servers.

The Guardian

On the May 20th, The Guardian announced that their “Open Platform”, an API to access the vast repository of Guardian media with over a million articles, video clips, photographs, and audio tracks, was “open for business”. The API was implemented using Scala. With 36 million people making regular use of the repository, the Open Platform was created to service the rapidly growing demand and provide a high-performance interface for media application developers.


Sony is an industry leader in the world of computer graphics. They have released five open-sourced projects, one which is the Scala Migrations, a library that manages updates, rollbacks, and changes to database schemas. The library is written in Scala and provides a database abstraction layer that allows migrations to target any supported database vendor.

These five companies along with Électricité de France Trading, Xerox, Novell, Xebia, Siemens, Thatcham, OPOWER, GridGain, AppJet, and Reaktor are just a few of the many companies moving to Scala.

That wraps up the introduction, let’s dive in and learn some Scala.

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