Companies using Underscore.js by Underscore.js in 2025
As of 2025, 2,027,224 verified companies use Underscore.js – across industries, company sizes, and geographies. This is real, verified data. Whether you’re looking to analyze the market, build a target list, or get a sales edge – this is your starting point.
What is Underscore.js?
Underscore.js by DocumentCloud is a JavaScript library that provides utility functions for common programming tasks. It offers a collection of functions that support functional programming paradigms, such as map, filter, invoke as well as more specialized helpers: function binding, javascript templating, deep equality testing, and so on. It’s used by developers in web development and software engineering for data manipulation, functional programming, and templating.
Last updated date
Number of Companies using
2,027,224
The majority are based in the
United States
Most common industry?
Manufacturing
Underscore.js’s sample user list in 2025
We have data on 2,027,224 companies that use Underscore.js. Our Underscore.js customers list is available for download and comes enriched with vital company specifics, including industry classification, organizational size, geographical location, funding rounds, and revenue figures, among others.
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Underscore.js users and customers by country
2.6K Companies
2.6K Companies
2.6K Companies
2.6K Companies
Where Underscore.js Shows Up Most
Underscore.js is used across a wide range of sectors:
Manufacturing
Business Services
Retail
Software
Finance
From lean startups to global enterprises, Underscore.js’s footprint is wide, and that means opportunity.

Tech Stack Database
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FAQs
Contact UsHow latest this data is?
This data is updated on August 17, 2025
What is Underscore.js?
Underscore.js is a JavaScript library that provides utility functions for common programming tasks. It offers a collection of functions that support functional programming paradigms, such as map, filter, invoke, as well as function binding, JavaScript templating, and deep equality testing.
How many companies are using Underscore.js in 2025?
As of 2025, there are 2,027,224 verified companies using Underscore.js.
What types of companies use Underscore.js?
Underscore.js is used across various industries, company sizes, and geographies.
What is the primary use of Underscore.js?
It’s used by developers in web development and software engineering for data manipulation, functional programming, and templating.
Which country has the highest number of companies using Underscore.js?
The United States has the highest number of companies using Underscore.js.