Companies Using Firebase

We detect Firebase on 160,932 domains, including Carrefour, Sutherland Global, Ecolab. 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 Software Development (9.47%).

We detect 160,932 domains running Firebase across our monthly crawl of live business domains. Company data could be matched for 96,521 of them (60.0%), and every company-size, industry and country breakdown on this page describes that matched subset rather than the full detected base. A further 43,110 domains carried a Firebase detection previously and no longer do.

Firebase holds 6.87% of the PaaS category, ranking #5. 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 Firebase include Amazon Web Services (39.98% market share), Vercel (16.64% market share), WordPress.com (8.24% market share), Azure (7.5% market share) — measured as a share of the domains we detect running a platform in this category.

United States leads with 26,292 matched Firebase domains, followed by India (9,079), United Kingdom (5,526), Brazil (5,032), Canada (3,150). These are counts within the 96,521 domains we could match to a company record, not the full detected base.

The most common company size is 1-10 employees, representing 63.98% of the Firebase domains we could match to a company record and size — a subset of 96,521 matched companies, not of all 160,932 detected domains. This is followed by 11-50 employees (21.59%) and 51-200 employees (8.36%).

Among the Firebase domains we could match to a company with a known founding date, the largest group was founded in the 2010s (39.06%), followed by the 2020s (38.26%). That matched subset is drawn from 96,521 companies and is not representative of all 160,932 detected domains. This suggests Firebase is most popular among relatively young companies.

The ideal Firebase customer is: Company Size: 1-10 employees (63.98%), 11-50 (21.59%), Geography: US (26,292 matched domains), India (9,079), UK (5,526), Brazil (5,032), Industry: Software Development, IT Services, Technology and Internet, plus school districts, Company Age: Founded in the 2010s (39.06%) or the 2020s (38.26%), Use Case: App backend: Firestore, Authentication, Cloud Messaging, Analytics, Hosting, Tech Stack: Google Tag Manager (61.05%), Google Analytics (57.81%), Cloudflare (37.49%), React (16.68%) — based on our analysis of 96,521 enriched companies at TechnologyChecker.io.

Firebase is Google's app development platform. One SDK gives an application a database (Firestore and the older Realtime Database), authentication, push messaging through Cloud Messaging, analytics, crash reporting and hosting, so a team can ship without building or running a backend. It was founded in 2012 and acquired by Google in October 2014.

We match it on the SDK script source, the firebase.SDK_VERSION JavaScript global, a vary: x-fh-requested-host response header, an iframe pointing at a .firebaseapp.com address, a DNS TXT record, XHR calls to firestore.googleapis.com or a .firebaseio.com endpoint, and inline scripts containing firebaseConfig. Any one of those is enough for a domain to be counted, which makes this one of the broadest detection rules in the Platform as a Service category.

No. A detection proves Firebase is wired into that domain somewhere. It does not say which products are in use, how much of the application depends on them, or whether the main backend is Firebase at all. Several of the signals we match, including the XHR calls to Firestore and the firebase.SDK_VERSION global, only appear when the code path that uses Firebase actually runs, so a detection can come from a single login screen or support widget sitting on an otherwise unrelated stack. Confirm in a browser before treating a specific domain as a Firebase shop.

Because Firebase is a backend layer rather than a host, and the platforms it would be compared against are the ones it runs on top of. Of the domains that have ever run both Firebase and Amazon Web Services, 89.8% still run both. For Vercel it is 89.1%, Netlify 87.2% and Azure 91.2%. A migration corridor between products that nine in ten sites keep running together would describe crawl timing rather than any decision, so we publish none.

43,110 domains dropped a detection since we began tracking in March 2026, but that is not a count of departures. 75.1% of those domains were seen exactly once, well above the 48% to 56% typical of comparable platforms in this category. Firebase is often loaded conditionally, behind a login or on one route of an app, so a crawl that lands on a page which never calls it records nothing. Read the number as detection intermittency first and abandonment second.

Our August reading detects Firebase on 160,932 domains. The three readings in the current crawl window are 138,674 active domains on 1 June 2026, 155,298 on 1 July and 160,932 on 1 August, and the first step reflects our coverage widening as much as any change in the market. Company records could be matched for 96,521 of those domains, and the size, industry, country and age breakdowns on this page describe that matched subset rather than the full detected base.

Yes. It is on 160,932 domains in the August reading, 6.87% of the Platform as a Service category and fifth by domain count. It is also one of the most heavily stacked products in that category: it appears alongside the major hosts rather than instead of them, and nine in ten of the domains that have ever paired it with AWS, Vercel, Netlify or Azure still run both.

No. Firebase was founded in 2012 by James Tamplin and Andrew Lee and acquired by Google in October 2014, and it is part of Google Cloud. Amazon's own platform in this category, Amazon Web Services, is a separate product and the category leader by domain count with 936,363 domains against Firebase's 160,932.

Firebase has a free tier, the Spark plan, which covers products such as Authentication, Cloud Messaging, Crashlytics and Remote Config along with daily quotas on Firestore and Hosting, and a pay-as-you-go plan, Blaze, that bills beyond those quotas. Cost is the dominant theme in the G2 reviews on this page: cost issues (10 mentions), pricing that escalates unexpectedly (9) and pricing judged uncompetitive (6) account for 25 of the 35 con mentions.

Because that is the category we measure it in, and the ranking there is a map of the category rather than a shortlist. Firebase is a backend layer: it supplies the database, authentication and messaging an app needs while something else serves the site. That is why it sits at #5 with 6.87% behind Amazon Web Services, Vercel, WordPress.com and Azure, and why it coexists with all of them instead of replacing them.

Rarely. Of the domains that have ever run Firebase and Vercel together, 89.1% still run both, and for Netlify the figure is 87.2%. Firebase supplies the database, auth and messaging while the host serves the site, so the usual arrangement is both rather than either.

Almost always one project rather than a whole estate. The 10,001+ employee band is 244 domains, 0.27% of the size-resolved base, and the detection URLs make the pattern plain: Carrefour on communaute.carrefour.fr, Emirates NBD on online.emiratesnbd.com, Türk Telekom on bireysel.turktelekom.com.tr, Paytm on tickets.paytm.com. Firebase is a portal, an app or a support tool inside a large company, not its backend.

The data shows it used at enterprise scale but rarely as enterprise infrastructure. Companies with more than 10,000 employees account for 244 of the 92,067 size-resolved domains. Across the top of the size range the detections sit on portals, careers sites and support subdomains: Toll Group on its careers site, Tata Communications on its jobs subdomain, Sutherland Global on its jobs site, AirAsia on support.airasia.com. Departmental use is the norm at that size.

More than you would expect from a developer platform. Primary and Secondary Education (2,051 domains) and Education Administration Programs (1,787) both make the top ten industries. Clark County School District, Houston ISD, Dallas Independent School Districts, Broward Schools, Wake County Public School System and Boston Public Schools all carry a detection, as do Penn State, Rutgers University and Florida International University, usually on an individual school, portal or department subdomain rather than the main site.

Several do, on customer-facing subdomains rather than core banking systems. Emirates NBD (online.emiratesnbd.com), Bank Alfalah (rapid.bankalfalah.com), Security Bank Corporation (retail.securitybank.com), Abu Dhabi Islamic Bank (simple.adib.ae), Standard Bank (experience.standardbank.co.za) and Banco de Chile all appear in the data. Financial Services accounts for 2,495 domains, 2.83% of the industry-resolved base.

We cannot answer that from a domain count, and the closest figure is smaller than people expect: 1,639 of the domains we detect are themselves firebaseapp.com or web.app addresses. A site served by Firebase Hosting normally points a custom domain at it, so it looks like any other domain here. The hosting product is not a reliable way to size Firebase usage in either direction.

Google Tag Manager (61.05% of sampled Firebase domains) and Google Analytics (57.81%) lead, which is expected for a Google product. Cloudflare is the more telling entry at 37.49%, along with cdnjs (17.03%), jsDelivr (14.94%) and Google Cloud CDN (11.04%). On the framework side React leads at 16.68%, followed by React Router (9.87%), Vue.js (8.29%) and Angular (5.18%). Percentages are shares of Firebase's sampled active domains.

Pricing, by a distance. In the aggregated G2 reviews on this page, cost issues draw 10 mentions, pricing that escalates unexpectedly 9 and pricing judged uncompetitive 6, which is 25 of the 35 con mentions. The other recurring complaint, the black box feeling (6 mentions), is the same objection from another angle: it is hard to see which part of an app is generating the bill.

Speed of setup. Ease of use is the top pro with 10 mentions, followed by the breadth of the backend-as-a-service bundle (9) and real-time updates (7). For a team without a backend engineer, one SDK covering database, authentication, messaging and analytics removes weeks of work, which is also why 63.98% of the Firebase domains we can size belong to companies with 1 to 10 employees.

Mostly, yes. 63.98% of the size-resolved domains (58,908) belong to companies with 1 to 10 employees and another 21.59% (19,878) to companies with 11 to 50. Founding dates point the same way: 39.06% of matched companies were founded in the 2010s and 38.26% in the 2020s. The large organisations in the data are real, but they are a thin band and their detections are usually a single project rather than a company-wide platform.

India accounts for 9,079 matched domains, behind the United States on 26,292 and ahead of the United Kingdom (5,526) and Brazil (5,032). Firebase's footprint tracks the developer population rather than the enterprise software map, and a free tier plus a mobile-first market puts it in front of a very large number of small studios and independent teams. These are counts inside the 96,521 domains we could match to a company record, not the full detected base.

Three things. Whether the detection sits on the main domain or a subdomain, because that tells you which team owns the project. Whether it persists across readings, because 75.1% of the 43,110 dropped domains were seen exactly once. And whether Firebase is doing anything you can observe in a browser, because several of the signals we match only appear when the application's Firebase code path actually runs.