Company lists · Data refreshed September 2026

Top 25 Server colocation providers worldwide

RevenueBase identified 2,547 server colocation providers worldwide as of September 2026 and tracks 67,051 professional contacts across them, including 22,326 with verified work emails. The United States is the largest market and London the largest hub.

This list covers server colocation providers 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 22, 2026. Country and city lists for server colocation providers 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review
2,547Companies
67,051Contacts tracked
22,326Verified emails
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The 25 largest server colocation providers worldwide

Ranked by team size
Top 25 of 2,547 server colocation providers worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to server colocation providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceAustin, TX, United StatesHQ checked Sep 22, 20261,001-5,0004,496 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 22, 2026
2Indirect evidenceSterling, VA, United StatesHQ checked Sep 22, 20261,001-5,0002,009 contacts →

Indirect evidence

“Digital infrastructure leader driven by purpose, innovation and community impact.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceHyderabad, IndiaHQ checked Sep 22, 20261,001-5,0001,942 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 22, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 22, 20261,001-5,0001,842 contacts →

Indirect evidence

“NTT Global Data Centers is a division of NTT DATA.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceMeudon La Foret, FranceHQ checked Sep 22, 2026n/a1,519 contacts →

Indirect evidence

“Société d'infogérance”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceDenver, CO, United StatesHQ checked Sep 22, 20261,001-5,0001,036 contacts →

Indirect evidence

“STACK provides digital infrastructure to scale the world’s most innovative companies.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceSao Paulo, BrazilHQ checked Sep 22, 20261,001-5,0001,017 contacts →

Indirect evidence

“Scala Data Centers is the leading sustainable data center platform in the Hyperscale market.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceDallas, TX, United StatesHQ checked Sep 22, 2026501-1,000870 contacts →

Indirect evidence

“CyrusOne is a leading global data center developer and operator, delivering sophisticated digital infrastructure solutions worldwide.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceDallas, TX, United StatesHQ checked Sep 22, 2026501-1,000868 contacts →

Indirect evidence

“DataBank Holdings Ltd.”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidencePhoenix, AZ, United StatesHQ checked Sep 22, 2026201-500849 contacts →

Indirect evidence

“IO is now Iron Mountain.”

Source: RevenueBase Database · checked Sep 22, 2026
11Partial evidenceVinhedo, BrazilHQ checked Sep 22, 2026501-1,000847 contacts →

Partial evidence

“Ascenty, a Digital Realty and Brookfield company, is the largest data center and connectivity service provider in Latin America, currently featuring 36 data centers in operation…”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceCentennial, CO, United StatesHQ checked Sep 22, 2026501-1,000833 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 22, 2026
13Partial evidenceMumbai, IndiaHQ checked Sep 22, 2026501-1,000752 contacts →

Partial evidence

“Yotta Data Services Private Limited is a Hiranandani group company.”

Source: RevenueBase Database · checked Sep 22, 2026
14Partial evidenceDenver, CO, United StatesHQ checked Sep 22, 2026501-1,000655 contacts →

Partial evidence

“CoreSite, an American Tower company (NYSE: AMT), provides hybrid IT solutions that empower enterprises, cloud, network and IT service providers to monetize and future-proof their…”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceAmsterdam, JapanHQ checked Sep 22, 2026501-1,000629 contacts →

Partial evidence

“Leaseweb is a leading Cloud services and Infrastructure-as-a-Service (IaaS) provider serving a worldwide portfolio of customers ranging from SMBs to Enterprises.”

Source: RevenueBase Database · checked Sep 22, 2026
16Partial evidenceSingaporeHQ checked Sep 22, 2026201-500619 contacts →

Partial evidence

“ST Telemedia Global Data Centres (STT GDC) is one of the fastest-growing data centre providers with a global platform serving as a cornerstone of the digital ecosystem that helps…”

Source: RevenueBase Database · checked Sep 22, 2026
17Partial evidenceClark, NJ, United StatesHQ checked Sep 22, 2026501-1,000529 contacts →

Partial evidence

“Maintech: A trusted global partner for IT Infrastructure Solutions and Managed Services, leveraging over 50 years of experience to empower businesses worldwide.”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceMumbai, IndiaHQ checked Sep 22, 20261,001-5,000528 contacts →

Indirect evidence

“About NTT Ltd.”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceSão Paulo, BrazilHQ checked Sep 22, 2026501-1,000487 contacts →

Indirect evidence

“ODATA, an Aligned Data Centers company, is a Data Center provider offering scalable, reliable, and flexible infrastructure across the Americas.”

Source: RevenueBase Database · checked Sep 22, 2026
20Partial evidenceCiudad Autónoma De Buenos Aires, ArgentinaHQ checked Sep 22, 2026201-500483 contacts →

Partial 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 22, 2026
21Indirect evidenceBrisbane City, AustraliaHQ checked Sep 22, 2026201-500457 contacts →

Indirect evidence

“NEXTDC is an ASX100-listed digital infrastructure company enabling business transformation by delivering three core pillars of customer value: Operational Certainty, Future…”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceWarsaw, PolandHQ checked Sep 22, 2026201-500444 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 22, 2026
23Indirect evidenceMaarssen, NetherlandsHQ checked Sep 22, 2026501-1,000432 contacts →

Indirect evidence

“Eurofiber has been a provider of industry-leading open digital infrastructure since Utilizing our own fiberoptic network and datacenters, we provide smart, open, future-proof…”

Source: RevenueBase Database · checked Sep 22, 2026
24Partial evidenceLondon, United KingdomHQ checked Sep 22, 2026201-500415 contacts →

Partial evidence

“At Colt Data Centre Services, we aspire to our customers’ success, ensuring your growth is supported by the best infrastructure solution for your business’ unique vision.”

Source: RevenueBase Database · checked Sep 22, 2026
25Indirect evidenceHerndon, VA, United StatesHQ checked Sep 22, 2026201-500411 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 22, 2026

Showing 25 of 2,547 server colocation providers worldwide

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Server colocation providers worldwide at a glance

As of Sep 22, 2026
33.3%Verified-email coverage
26.3Average contacts per company
11-50Median size (employees)
2.0%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
978
11-50
973
51-200
407
201-500
99
501-1,000
51
1,001-5,000
21
5,001-10,000
2
10001+
5

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 server colocation providers, 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 server colocation providers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “server colocation providers”. 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 server colocation providers), 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 server colocation providers, 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, 22,326 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 22, 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.

Server colocation providers by location

13 lists · largest first

Every Server colocation providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 server colocation providers, 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 server colocation providers are there worldwide?

RevenueBase identified 2,547 server colocation providers 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 server colocation providers?

The United States leads with 593 companies, followed by the United Kingdom (167) and India (121). Every server colocation providers list by country and city is linked on this page.

Which city has the most server colocation providers?

London leads with 52 headquartered companies, followed by Dallas (25) and Istanbul (22).

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 22,326 verified decision-maker contacts tracked across these 2,547 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 22, 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.