Europe data center operators:ranked by sites tracked.

As of 20 October 2026, Equinix has the most data center sites tracked in Europe (63), then Digital Realty (42) and Microsoft (11). The list ranks operators by sites tracked, not by power capacity.

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How to read this list

Ranked by sites tracked, not by power capacity. A site counts once, under the name its source gives. Another ranking may use capacity or area and order the same names differently.
Operating is a site that is open. Planned is a site that is not open yet: announced, planned or under construction. The two are shown in separate columns and are never added together.
Counts are sites recorded, not a census of the data center market in Europe, and they grow as coverage grows. Power capacity is reported for only some sites, so a blank means not reported, not zero.

The 20 named data center operators with the most sites tracked in Europe, out of 63 named. Data updated 20 October 2026.
Rank	Operator	Sites tracked	Operating sites	Planned sites	Power capacity operating	Power capacity planned
1	Equinix	63	63	0	338 MW	not reported
2	Digital Realty	42	40	2	584 MW	202 MW
3	Microsoft	11	2	9	360 MW	992 MW
4	Google	8	8	0	1.1 GW	not reported
5	Vantage Data Centers	7	4	3	307 MW	1.1 GW
6	NTT	7	7	0	79 MW	not reported
7	CyrusOne	5	3	2	162 MW	130 MW
8	Iron Mountain	5	5	0	77 MW	not reported
9	atNorth	4	1	3	23 MW	345 MW
10	NTT Global Data Centers	4	4	0	194 MW	not reported
11	Amazon	3	2	1	490 MW	150 MW
12	Meta	3	3	0	440 MW	not reported
13	DATA4	3	3	0	430 MW	not reported
14	Green Mountain	3	3	0	310 MW	not reported
15	QTS Data Centers	2	0	2	not reported	1.3 GW
16	ClusterPower	2	0	2	not reported	812 MW
17	CloudHQ	2	0	2	not reported	259 MW
18	Echelon Data Centres	2	1	1	84 MW	144 MW
19	EcoDataCenter	2	1	1	80 MW	70 MW
20	Yondr Group	2	0	2	not reported	142 MW

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Unlock all 229 Europe data center sites and 202 sourced figures

This page lists the largest operators by sites tracked. Sign in or start a trial to inspect every facility, 63 operators and the source document behind each figure.

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Operating vs. pipeline capacity, operator and owner records
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How this data is built

Real Assets reads company pages, filings, news and listings, and records figures with a link to the page that published them.

Counts are sites Real Assets has recorded, not a full census, and grow as coverage grows. Sites are listed with the operator as published (the owner for industrial parks). Data updated 20 October 2026.

How this data is built and what a source line means

Questions

How are Europe data center operators ranked?

By sites tracked: the number of sites Real Assets has recorded under each operator's name, as the source gives it. It is not a ranking by power capacity, so a list ranked that way can put the same names in a different order. Operating is a site that is open. Planned is a site that is not open yet: announced, planned or under construction. They are shown in separate columns and never added together.

Is this a full list of data center operators in Europe?

No. It shows the 20 named operators with the most sites tracked, out of 63 named operators recorded. Counts are sites Real Assets has recorded, not a census of the data center market in Europe. A site whose source names no operator is not attributed to anyone.

What do operating and planned mean?

Operating is a site that is open. Planned is a site that is not open yet: announced, planned or under construction. They are shown in separate columns and never added together.