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RxJS is a library for reactive programming using Observables, to make it easier to compose asynchronous or callback-based code. This project is a rewrite of Reactive-Extensions/RxJS with better performance, better modularity, better debuggable call stacks, while staying mostly backwards compatible, with some breaking changes that reduce the API surface.
10,943
companies
Technology Usage Statistics and Market Share
You can customize this data to your needs by filtering for geography, industry, company size, revenue, technology usage, job postions and more. You can download the data in Excel or CSV format.
You can get alerts for this data. You can get started by selecting the technology you are interested in and then you will receive alerts in your inbox when there are new companies using that technology.
You can export his data to an Excel file, which can be imported into your CRM. You can also export the data to an API.
There are 106 alternatives to RxJS

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RxJS is used in 96 countries
Technology
is any of
RxJS
| Company | Country | Industry | Employees | Revenue | Technologies |
|---|---|---|---|---|---|
United States | Financial Services | 200K | $75B |
We have data on 10,943 companies that use RxJS. Our RxJS 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.
United States | IT Services and IT Consulting | 62K | $4.8B | ![]() RxJS |
United States | Technology, Information and Internet | 893 |
| ![]() RxJS |
United States | Software Development | 1.7K | $300M | ![]() RxJS |
United States | IT Services and IT Consulting | 4K | $1.6B | ![]() RxJS |
Germany | IT Services and IT Consulting | 21 |
| ![]() RxJS |
Netherlands | Financial Services | 2.1K |
| ![]() RxJS |
United States | Financial Services | 244K |
| ![]() RxJS |
Spain | IT Services and IT Consulting | 2.2K |
| ![]() RxJS |
United States | Software Development | 1.5K | $7M | ![]() RxJS |
Frequently asked questions