I’d like to introduce Top Ruby Companies, a convenient resource for checking which world-class companies are using Ruby.

Background: Wanting to Know Which World-Class Companies Use Ruby

Recently, when I needed to research which world-class companies are using Ruby, I remembered a site called Top Ruby Companies that a former colleague had introduced to me, so I decided to use it.

You can find a list of acquired companies like GitHub and Heroku at Ruby Subsidiaries owned by world-class companies.

Companies offering Ruby consulting services (development consulting and contract development) are also listed.

It looks like a Startup category will be added soon.

Top 5 Companies by Market Cap on Top Ruby Companies

The top 5 companies by market capitalization using Ruby are as follows (as of March 23, 2024):

No.1 Airbnb airbnb.com Market Cap: $107 B

No.2
Shopify shopify.com Market Cap: $101 B

No.3
Coinbase coinbase.com Market Cap: $61.9 B

No.4
Square block.xyz Market Cap: $49.7 B

No.5
Procore procore.com Market Cap: $11.9 B

The fact that these companies are using Ruby could serve as useful reference material when explaining reasons for adopting Ruby or Ruby on Rails.

That’s all from the Gemba, where I checked out which world-class companies are using Ruby.