Companies Using Google Cloud Storage

Google Cloud Storage is a big product and this is a narrow page, so I'll start with what we count. A domain counts when its page arrives with the x-goog-storage-class header, which Cloud Storage sets on the files it serves. In practice that means the site's HTML lives in a bucket: a static site, usually behind a Google load balancer, Cloud CDN or Cloudflare. Apps that keep data, backups or images in Cloud Storage but serve their pages from somewhere else don't count. Our October 2026 crawl finds 28,085 live domains that pass, 16,498 matched to a company, 3rd of 19 in Cloud Infrastructure.

Half of it is one insurer's agents

14,337 of the 28,294 domains live when we checked in October (50.7%) are also detected on a website platform we label Mirus, and 12,681 of those carry "State Farm" in the page title. They're agents' own-domain sites, such as samq.net for an agent in Michigan and kga.info for one in Mission, Kansas. I opened eight of them, six picked at random. Every one came from a bucket with the storage header, and every one loads its images and scripts from mirus.io, the domain of Mirus Research, a software developer in Normal, Illinois. This one fleet drives three of our charts. It's why Insurance is 51.22% of industries, and why Adobe Analytics (45.27%) and Invoca (37.4%) sit so high in the stack.

Sales signal: treat the 14,337 as a single account. Anything sold into those sites is bought by the platform and the insurer behind it, not by 14,000 agents.

Locators at the top of the list

Big brands reach this list another way. 27 of the 50 companies named below appear through a store, branch or office locator built with Yext: KFC's restaurant finder, Lloyds Bank's, Halifax's and TSB's branch pages, Cartier's boutique finder, and the store pages of Albertsons, Vons, Jewel-Osco and Shaw's. Yext's code is on the page, and Cloud Storage serves it. Across all matched companies with more than 1,000 staff, 32 of 147 are detected on a locator-style subdomain such as locations., local., stores. or branches.

Sales signal: for those brands, Cloud Storage holds one locator site that a vendor built, not the corporate web estate. Anything you'd pitch "for their GCS sites" goes to the local-search team, or to Yext.

Growth is levelling off

The chart reads 19,498 domains in June, 23,040 in July, 26,268 in August, 27,870 in September and 28,085 in October. Monthly gains fell from 3,542 to 3,228, then 1,602, then 215. Two things on our side move this line: the set of domains we crawl turns over every month as dead sites drop out and new ones are found, and our detection signals widen over time. So I read it as a curve that has flattened. On its own it says little about demand.

"Half the sites we see served from Cloud Storage belong to one insurer's agents. If you're building a Cloud Storage prospect list, take them out first." - Emma Davies, Data Analyst at TechnologyChecker.io

Sales signal: expect a stable pool of about 28,000 domains rather than a fast-growing one, and refresh lists monthly, since 1,646 domains have dropped Cloud Storage since 16 March 2026.

The rest of the base

Outside the fleet, 13,957 domains remain and 7,797 of them match a company. That group looks like a developer tool's audience. Software Development leads with 823 companies, then Marketing Services (543), Technology, Information and Internet (522), Advertising Services (465) and IT Services and IT Consulting (424). Marketing and advertising agencies make up 1,008 of the 7,797 (12.9%), and I'd expect many of them to host static sites for clients. 4,904 of the 7,520 with a known size (65.2%) have 1 to 10 staff and 1,673 have 11 to 50. Nearly every matched company above 50 staff sits outside the fleet: the 51 to 200 band holds 533 companies in both counts.

Sales signal: once the fleet is gone, this is a list of small software firms and agencies that run their own static hosting. Static-site tooling, headless CMSs and form backends fit them.

How a bucket reaches the web

Google's static website guide says Cloud Storage can't serve a custom domain over HTTPS by itself, so it pairs a bucket with an external Application Load Balancer. Our stack data shows another route. 33.22% of live Cloud Storage domains also show Cloudflare and 16.69% Google Cloud CDN. Frameworks that can export static files lead the framework list, with Nuxt.js on 7.18% and Next.js on 4.05%, and WordPress is on 5.36%. Firebase, Google's other static host, is on 2.36% and Amazon Web Services on 2.34%.

Sales signal: domains that show neither Cloudflare nor Cloud CDN in our data are the natural prospects for CDN and edge-security vendors.

Overlap, not migration

None of the rival pairs passed our switching tests. 659 domains run Cloud Storage and Firebase today, 412 run it with Amazon S3, 50 with GitHub Pages and 7 with DigitalOcean Spaces. For each pair, either most domains ever seen with both still run both, or the flow ran about evenly both ways. Churn is low against the base. 1,646 domains have dropped Cloud Storage since March 2026, and when I rechecked, 86 of the 1,650 on that list by then still served pages from a bucket on another hostname.

"Firebase and S3 sit beside Cloud Storage on hundreds of sites, and none of those pairs looks like customers leaving one for the other." - Emma Davies, Data Analyst at TechnologyChecker.io

Sales signal: a pitch built on "Cloud Storage customers are leaving" has no support in our data. Sell into the stack rather than against it.

Reading the market share

Cloud Storage's 3.42% puts it behind Amazon S3 (707,535 domains, 86.23%) and DigitalOcean Spaces (42,981). The rules differ. The S3 profile counts a site when its pages or files come from S3, when it loads a script from an S3 address, or when its security policy allows S3. The Spaces profile counts public images. Ours for Cloud Storage needs the page itself to come from a bucket, the narrowest of the three.

Sales signal: quote these shares only with the rules beside them. They aren't a like-for-like comparison of the three services.

What it costs

Google's pricing page (checked 11 October 2026) lists Standard storage in US regions at $0.000027397 per GiB per hour, about $0.02 a month, with internet data transfer from $0.12 per GB. The Always Free tier covers 5 GB-months of Standard storage, 5,000 Class A and 50,000 Class B operations a month in us-west1, us-central1 and us-east1. So a 1 GB site costs about two cents a month to store, and serving 10 GB of it to the internet costs $1.20 at that rate.

Sales signal: storage is a rounding error for these sites. Any pitch on price should go after transfer and load-balancer spend instead.

Key takeaways

1. 28,085 live domains whose pages come from a bucket, 3rd of 19. It's a narrow rule, not a customer count.

2. About half (14,337 domains) are State Farm agent sites on one platform.

3. 27 of the 50 named companies appear through Yext-built locators.

4. Outside the fleet, small software firms and agencies, 65.2% with 1 to 10 staff.

5. Overlap with Firebase (659 domains) and Amazon S3 (412), and no switching corridor.

How to use this list

Remove the agent fleet and the locator pages, then filter by industry and size. For the full list of 28,085 domains served from Cloud Storage, with company, size and stack data, explore TechnologyChecker.io. Our Google Cloud profile covers the wider platform.