A consolidated list of why five organization chose chose Scala as their platform.

1) LeadID: LeadiD helps you measure and understand lead quality, and take action to improve lead performance. LeadID’s evaluation boiled down to six points that broadly encompass their requirements of a programming language.

Statically Typed

Fast Runtime Performance

Concurrency Toolset

Supports Many Paradigms

Strong Ecosystem

Enjoyable to Use

Thier post sharing details on the Scala choice is here

2) Coursera provides online education in an interactive & on demand platform. They chose Scala for 3 Reasons:

Type safety Powerful Concurrency Mature Ecosystem

3) Avention (formerly known as OneSource) is the most comprehensive provider of business and company data in the world. Here is the post on why Avention Chose Scala

Criteria chosen by Avention for evaluating languages:

Developer Productivity.

Risk of Bugs.

Libraries.

Hirability.

4) JanRain provides customer identity management solutions. Given below in thier words on why they chose Scala. The complete case study on their experience is here.

Anthony and Thomas Lockney, a Software Architect, had both used Scala for a number of years prior to joining Janrain and knew that they could benefit from using it again. Scala is a general purpose programming language designed to express common programming patterns in a concise, elegant, and type-safe way. It smoothly integrates features of object-oriented and functional languages, enabling Java and other programmers to be more productive. As it turns out, Scala had quietly made its way into the company months before as a way to enhance a Ruby and Java based service. Scala was a natural choice given that it was appealing to the engineering teams, and would help Janrain in consolidating around a toolset that most developers already knew well, and had already been at least somewhat established in the Janrain environment.

5) Codacy builds an automated code review product. Given below is a brief excerpt on why they chose Codacy.

Initially, we wanted to have the expression power of dynamic languages without losing static type safety. We placed our bets on Scala and, judging from adoption rates, we believe this was a good decision. The type system is turing complete. This should say enough about its potential.

Scala has also helped us with hiring; typically, if someone is interested in working with Scala, they will probably be a good fit for us as a company. This is because a special spark in a engineer is needed for him/her to be curious and interested in working with new languages. Having said that, Scala is no longer a new language. Its adoption has been growing steadily and fueled by the big data movement and platforms such as Spark.