Companies Using Backbone.js

We detect Backbone.js on 213,368 domains, including Siemens AG, Upwork Enterprise, RTX Corp. A detection means the technology is present on that domain, which for large organisations is often a single storefront or subdomain rather than a company-wide deployment. Among domains we matched to a company with a resolved industry, the most common is Construction (3.37%).

We detect 213,368 domains running Backbone.js across our monthly crawl of live business domains. Company data could be matched for 131,910 of them (61.8%), and every company-size, industry and country breakdown on this page describes that matched subset rather than the full detected base. A further 20,635 domains carried a Backbone.js detection previously and no longer do.

Backbone.js holds 3.1% of the JavaScript Frameworks category, ranking #8. This is a share of the domains we detect running a platform in this category — not a share of all websites, and not a share of spending — so it is not directly comparable to figures published on other denominators.

The top alternatives to Backbone.js include React (42.4% market share), Vue.js (12.59% market share), AMP (9% market share), React Router (5.7% market share) — measured as a share of the domains we detect running a platform in this category.

United States leads with 44,659 matched Backbone.js domains, followed by United Kingdom (11,310), Germany (6,819), France (4,908), Spain (4,853). These are counts within the 131,910 domains we could match to a company record, not the full detected base.

The most common company size is 1-10 employees, representing 65.49% of the Backbone.js domains we could match to a company record and size — a subset of 131,910 matched companies, not of all 213,368 detected domains. This is followed by 11-50 employees (21.28%) and 51-200 employees (7.8%).

Among the Backbone.js domains we could match to a company with a known founding date, most were founded in the 2010s (37.04%), followed by the 2000s (18.34%). That matched subset is drawn from 131,910 companies and is not representative of all 213,368 detected domains. This suggests Backbone.js is most popular among relatively young companies.

The ideal Backbone.js customer is: Founded: 2010-2019, Company Age: ~7-15 years old, Company Type: Public Companies & Gov Agencies, Company Size: 10001+ employees, Industry: Enterprise Tech & Manufacturing — based on our analysis of 131,910 enriched companies at TechnologyChecker.io.

Yes. Backbone.js continues to receive updates — version 1.6 was released in July 2024, so the framework remains actively maintained. New adoption has largely stopped, with most activity focused on maintaining existing applications rather than building new ones. Our data shows 213,368 active domains still running it.

Major Backbone.js users detected in our crawl include Siemens, Dell Technologies, Lockheed Martin, RTX, Caterpillar, GE Healthcare, IKEA, Carrefour, Best Buy and Upwork. These are primarily enterprise-scale organisations that built complex applications during Backbone's peak years and still run them. By domain count, though, most Backbone.js sites belong to very small companies: 65.49% have 1-10 employees.

Backbone.js is a frontend JavaScript library used to structure client-side web applications. It provides models with key-value binding, collections with enumerable functions, and views with declarative event handling. All running in the browser and connecting to backend APIs via RESTful JSON interfaces.

Companies continue using Backbone.js because they have working, business-critical applications built 8-15 years ago that are expensive to rewrite. Our data shows heavy adoption among risk-averse sectors like pharmaceuticals, government, manufacturing, and finance where stability outweighs the appeal of modern frameworks. Rewriting working code requires budget justification many can't make.

Vue.js offers reactive data binding, a component architecture and a gentler learning curve; Backbone.js is more minimal and leaves those decisions to you. We publish no migration figures between them. 80.3% of domains that have ever run both still run both, which means a switching count would mostly be measuring pages that added Vue beside Backbone rather than pages that replaced one with the other.

Based on 131,910 analysed companies, Backbone.js domains almost universally run Underscore.js (96.6%) and Lodash (95.04%), with jQuery at 93.02%. Underscore.js is Backbone's hard dependency, so that overlap is structural rather than a preference. Beyond the dependencies, Google Analytics appears on 56.07%, and compatibility libraries such as Modernizr and jQuery Migrate are common — a signature of an older front-end estate.

Yes, Backbone.js is completely free and open source under the MIT License. There are no subscription fees, usage limits, or commercial licensing requirements. The framework can be used in both personal and commercial projects without cost, making it accessible for any budget.

Based on our enriched company data, Construction leads at 3.37% of Backbone.js domains, followed by Real Estate (3.27%) and Business Consulting and Services (2.85%). The spread is unusually flat — no industry holds more than about one domain in thirty. The recognisable enterprise names cluster in heavy industry and defence (Siemens, Caterpillar, Lockheed Martin, RTX, Collins Aerospace), energy (Halliburton, Schlumberger) and retail (IKEA, Carrefour, Best Buy).

Yes, Backbone.js can coexist with React or Vue during gradual migrations. Many teams wrap Backbone views inside React components or use Vue to replace Backbone views one component at a time. This incremental approach reduces risk compared to full rewrites, allowing teams to modernize without downtime.

Backbone.js has not been a default choice for new projects in years, but our data does not support a specific decline figure. We publish only the current crawl window, June to August 2026, and Backbone.js rose across it from 180,672 to 213,368 active domains — mostly because our crawl widened rather than because adoption grew. What we can measure is churn: 20,635 domains dropped Backbone.js between March and September 2026, roughly one in eleven. Remaining usage is overwhelmingly maintenance of applications that already work.

Companies migrate from Backbone.js to get reactive data binding, better TypeScript support, larger talent pools and richer component ecosystems. We do not publish a most-common-target figure: the domains running Backbone.js alongside Vue or React overwhelmingly still run Backbone.js too (80.3% and 82.4% respectively), so what our data actually shows is frameworks being added beside Backbone.js during long, incremental migrations rather than clean switches.

Based on our enriched company data, Backbone.js usage concentrates in the United States (44,659 domains), the United Kingdom (11,310), Germany (6,819) and France (4,908). That US-then-UK ordering is the conventional shape for our country breakdowns — notably both Vue and Mustache break it, with Germany in second place.

Learning Backbone.js makes sense mainly for maintaining existing applications. With 213,368 active domains still running it at organisations including Siemens, Dell and Lockheed Martin, maintenance skills stay valuable for contractors and consultants, and the attrition rate is slow — about one domain in eleven dropped it in the last five months. For new projects, though, invest in React, Vue or Svelte.