F# is an excellent choice for enterprises.

The benefits of F# for enterprise development are:

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Benefits of F# for enterprise and line-of-business applications

Many developers have posted on why they like F#:

A tour of F# features

Low risk ways to use F#

You can easily try out F# for non-critical development tasks such as testing and scripting without committing to wholesale change.

F# for build automation

F# for testing .NET systems

Fewer errors, less maintenance

Many common errors, such as nulls or empty collections, are easily avoided in F#. F# classes cannot be null, exhaustive pattern matching means that edge cases are not overlooked, and units of measure can be used to avoid accidental mixups of incompatible numbers.

F# code is engineered for testing

Functional programming does not use state and the logic tends to be linear, so it is very easy to test subsystems in isolation easily (using NUnit or your favorite test framework), and there are no tangled webs of dependencies.

Using F# for domain modelling

F# has a powerful type system that can be used to model domains accurately. “Choice” types can model business cases more conveniently than inheritance, and business rules can be designed into the type system so that you get “compile-time unit tests”, eliminating the need for many tests that would otherwise have to be written by hand.

If you are moving to CQRS and an event-sourcing approach, F# is a great choice for modelling this as well.

Data access and information-rich programming

We are entering a new information-rich world, one that provides huge opportunities for programmers to explore and create exciting applications. F# is a leader in this area.

Using F# type providers to access data

F# type providers allow you to talk directly to data, combining the power of dynamic code generation, the safety of static types, and the ease of use of intellisense.

Using F# to analyze data

F# also has powerful tools to analyze and process data, such as Deedle (for data and time series manipulation) and the R type provider which makes it possible to use all of R’s capabilities from the F# interactive environment, including on-the-fly charting and data analysis.

Taming complexity

F# has a number of features to help you manage complexity and improve performance such as: a safer Async library, a built-in actor model that’s easier than using threads, safe parallelization with immutable data, and more.

Asynchronous programming in F#

Agents and message queues

Developer morale

Learning functional programming (via F#) is a lot of fun, and will make your team happier. Yes, you can’t have fun all the time. But if you are enjoying yourself, then you are more likely to go the extra mile when needed.

What’s more, using F# may help you attract talented developers. After all, wouldn’t you want to work with people who are having fun?