Company lists · Data refreshed September 2026
Top 25 Colocation facilities worldwide
RevenueBase identified 1,244 colocation facilities worldwide as of September 2026 and tracks 34,942 professional contacts across them, including 13,890 with verified work emails. The United States is the largest market and London the largest hub.
This list covers colocation facilities worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026. Country and city lists for colocation facilities follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest colocation facilities worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,496 contacts → | ||||
Partial evidence “Digital Realty brings companies and data together by delivering the full spectrum of data center, colocation and interconnection solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,942 contacts → | ||||
Indirect evidence “Since its inception in 2007, CtrlS has been a frontrunner in the datacenter industry with the largest Rated-4 datacenter footprint.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,842 contacts → | ||||
Indirect evidence “NTT Global Data Centers is a division of NTT DATA.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,036 contacts → | ||||
Indirect evidence “STACK provides digital infrastructure to scale the world’s most innovative companies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,017 contacts → | ||||
Indirect evidence “Scala Data Centers is the leading sustainable data center platform in the Hyperscale market.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 868 contacts → | ||||
Indirect evidence “DataBank Holdings Ltd.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 849 contacts → | ||||
Indirect evidence “IO is now Iron Mountain.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 833 contacts → | ||||
Indirect evidence “Flexential empowers the IT journey of the nation’s most complex businesses by offering tailored hybrid IT solutions delivered via the FlexAnywhere® platform of integrated…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 752 contacts → | ||||
Indirect evidence “Yotta Data Services Private Limited is a Hiranandani group company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 483 contacts → | ||||
Indirect evidence “IPLAN es la compañía líder en la provisión de Conectividad, Datacenter, Soluciones IT y Servicios Cloud para las empresas de las principales ciudades de la Argentina.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 464 contacts → | ||||
Partial evidence “ST Telemedia Global Data Centres India (STT GDC India) is a market-leading Data Centre Colocation services provider offering AI-Ready, carrier-neutral DC colocation services…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 444 contacts → | ||||
Indirect evidence “Atman is the leading data center operator in the Polish market and one of major operators in Central and Eastern Europe.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 411 contacts → | ||||
Indirect evidence “EdgeConneX® is your global data center provider, operating highly proximate, high-powered, purpose-built solutions for customers at any scale – Edge, Far Edge, Hyperscale, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 405 contacts → | ||||
Indirect evidence “Global Switch owns and operates sq ft sq m) of exceptional large-scale, multi customer, carrier and cloud neutral data centre space across Europe and Asia-Pacific.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 397 contacts → | ||||
Indirect evidence “POWER YOUR ENTERPRISE'S DIGITAL INFRASTRUCTURE Build and deploy your hybrid IT strategy in Africa's most trusted data centre environment.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 334 contacts → | ||||
Partial evidence “US Signal is a provider of data center services, offering connectivity, cloud hosting, colocation, data protection, and disaster recovery solutions – all powered by its wholly…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 316 contacts → | ||||
Indirect evidence “Previder is the largest Dutch-based and owned datacenter company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 276 contacts → | ||||
Indirect evidence “acens, perteneciente al Grupo acens Technologies, es una empresa proveedora de servicios de “Hosting”, “Housing” y Soluciones de Telecomunicaciones para el mercado empresarial.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 255 contacts → | ||||
Indirect evidence “H5 Data Centers is one of the leading private data center owner and operators in the United States with over 4 million square feet nationally.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 253 contacts → | ||||
Indirect evidence “CloudHQ designs, builds and operates mission critical data centers, delivered through a tailored, customer service focused platform designed to foster long-term relationships.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 238 contacts → | ||||
Partial evidence “Headquartered in Dallas, Centersquare (formerly Evoque+Cyxtera) specializes in delivering a comprehensive suite of colocation and data center services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 235 contacts → | ||||
Indirect evidence “OneNeck is now US Signal.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 230 contacts → | ||||
Strong evidence “atNorth is a leading Nordic data center company specializing in scalable high-density colocation and built-to-suit facilities that meet the unique needs of today’s AI and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 224 contacts → | ||||
Indirect evidence “Aligned Data Centers is a leading technology infrastructure company offering innovative, sustainable, and adaptive Scale Data Centers and Build-to-Scale solutions for global…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 221 contacts → | ||||
Indirect evidence “Green is one of Switzerland’s leading providers of data center services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: colocation facilities. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names colocation facilities.
- Partial evidence
- Its own public description names part of colocation facilities, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name colocation facilities. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,244 colocation facilities worldwide
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Colocation facilities worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among colocation facilities, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for colocation facilities are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “colocation facilities”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names colocation facilities), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among colocation facilities, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 13,890 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Colocation facilities by location
9 lists · largest firstEvery Colocation facilities list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Colocation facilities based in the United States361
- Colocation facilities based in the United Kingdom94
- Colocation facilities based in Brazil46
- Colocation facilities based in India46
- Colocation facilities based in the Netherlands46
- Colocation facilities based in Germany41
- Colocation facilities based in Canada39
- Colocation facilities based in France29
- Colocation facilities based in Türkiye26
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names colocation facilities, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many colocation facilities are there worldwide?
RevenueBase identified 1,244 colocation facilities worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Digital Realty, headquartered in Austin, tops this list with the largest team on record.
Which country has the most colocation facilities?
The United States leads with 361 companies, followed by the United Kingdom (94) and Brazil (46). Every colocation facilities list by country and city is linked on this page.
Which city has the most colocation facilities?
London leads with 25 headquartered companies, followed by Dallas (18) and Los Angeles (12).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 13,890 verified decision-maker contacts tracked across these 1,244 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.