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Technologies / Coresite / Google Tag Manager

Companies using Coresite and Google Tag Manager

4 companies in our data have public evidence for both Coresite and Google Tag Manager, and 1 name both in their own subprocessor list. Each company below links to the source for every claim. Our coverage is partial, so this is not everyone.

4companies use both
80%of Coresite users
under 1%of Google Tag Manager users
1name both as subprocessors

The companies

Strongest evidence first: a company naming both in its own subprocessor list comes before one seen on its website or in job postings.

Subprocessor listPrivacy policyWebsiteJob postings

CompanyCoresiteGoogle Tag Manager
Backblazebackblaze.comBackblaze provides S3-compatible cloud object storage and computer backup services.Cloud and infrastructure
Ocientocient.comOcient provides the OcientAIQ unified data platform, which brings AI directly to petabyte-scale enterprise data and unifies data ingest, governance, query execution, and optimization.AI and machine learningData and analytics
SMTP2GOsmtp2go.comSMTP2GO is an outgoing email delivery service that sends and tracks emails and provides reports on delivery, bounces, and spam complaints.Communications
WCG Clinical Serviceswcgclinical.comWCG provides ethical and scientific review, study planning, and site enablement services for clinical research.Biotech and life sciencesHealthcare

The two technologies

Coresite

Cloud and infrastructure

CoreSite is a provider of data centers and colocation services. It is used for scalable space, reliable power and high-performance interconnection across U.S. markets.

Summarized from coresite.com on 9 Nov 2026.

80% of the 5 companies we see using Coresite also show the other.

All 5 companies using Coresite5 name it as a subprocessorMore in Cloud and infrastructure

Google Tag Manager

by Google · Analytics

Google Tag Manager is a tag management system that lets you configure and deploy tags on your website or mobile app through a web interface. It is used to add and update tags, such as measurement and marketing optimization tags, without editing your site code.

Summarized from developers.google.com on 8 Nov 2026.

under 1% of the 9,026 companies we see using Google Tag Manager also show the other.

All 9,026 companies using Google Tag Manager58 name it as a subprocessorMore in Analytics

Other pairs

Companies with their own evidence for both.

More with Coresite

Amazon Web Services5companiesCloudflare5companies

More with Google Tag Manager

Cloudflare9,045companiesGoogle Workspace5,979companiesGoogle Analytics3,395companiesHubSpot2,822companiesAmazon Web Services2,580companiesWordPress2,578companies

Questions

How many companies use both Coresite and Google Tag Manager?

4 companies in StrataDB's data have public evidence for both, and 1 of them name both in their own subprocessor list, the strongest evidence we hold. Our coverage is partial, so the real number is higher.

Which companies use Coresite and Google Tag Manager?

Backblaze, Ocient, SMTP2GO and WCG Clinical Services. Each one links to the evidence behind it.

How does StrataDB know a company uses Coresite and Google Tag Manager?

From four kinds of public evidence: subprocessor lists, privacy policies, website code and job postings. Each is kept apart with its source and the date we saw it. A company missing here means we found no evidence, not that it does not use them.

Find every company using Coresite and Google Tag Manager

See the full list with the source for each company, and run the same lookup for any technology from the API, Claude or your browser.

  • Every company and vendor, with its public source
  • 100 API calls a month, plus MCP and the Chrome extension
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