Colocation providers, compared
Compare 70 colocation providers by data centers, MW, rack density and liquid cooling. Digital Realty runs 300+ data centers in 55+ metros; Equinix reported 282 data centers at 30 Sep 2026 across 77 markets. STACK publishes 8.5+ GW built and under development. Digital Realty sells up to 150 kW per cabinet, and 20 providers offer liquid cooling.
Last verified
| Model | Count basis | Liquid cooling | Ownership | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Digital Realty | Retail and wholesale | 3001 | 300+ data centers in 55+ metros and 30+ countries, per the company About page. | — | 551 | 301 | — | — | 1503 | Yes | — | — | 2026-11-11 |
| Equinix | Retail and wholesale | 2821 | 30 Sep 2026 10-Q: 282 data centers in 77 markets and 36 countries, including 24 xScale data centers and the MC1 and SN1 joint-venture sites. | — | 771 | 361 | — | — | — | Yes | 2,0002 | Public (Nasdaq: EQIX) | 2026-11-11 |
| Lumen Technologies | Retail | 2001 | 200+ North American colocation locations in 120+ cities; network colocation locations, not a conventional standalone building census. | — | 1201 | — | — | — | 121 | — | — | — | 2026-11-11 |
| NTT Global Data Centers | Retail and wholesale | 1602 | 160+ data centers in 20+ countries and regions, per the NTT DATA global data centers page. | — | — | 203 | 2,0003 | — | — | — | — | NTT DATA (NTT Group) | 2026-11-11 |
| ST Telemedia Global Data Centres | Retail and wholesale | 1101 | More than 110 data centres in 20+ business markets; includes sites under development and held for further development. Includes VIRTUS. | — | 201 | 121 | — | 2,7001 | — | — | — | KKR-led consortium with Singtel | 2026-11-11 |
| EdgeConneX | Wholesale and hyperscale | 901 | 90+ data centers in 60+ markets and 20+ countries, per the EdgeConneX homepage. | — | 601 | 201 | — | — | — | — | — | EQT Infrastructure | 2026-11-11 |
| Centersquare (Csquare) | Retail | 803 | 80 colocation data centers as reported on the homepage. | — | — | 33 | — | — | — | — | — | — | 2026-11-11 |
| DataBank | Retail and wholesale | 701 | 70+ data centers across 25+ markets in the owner’s portfolio overview; operating/development and building/campus split not supplied. | — | 253 | — | — | — | — | Yes | — | DigitalBridge-managed investors | 2026-11-11 |
| CyrusOne | Wholesale and hyperscale | 601 | 60+ data centers across North America, EMEA and APAC, per the About page. Countries counted from the location list. | — | — | 92 | — | — | — | Yes | — | KKR and Global Infrastructure Partners | 2026-11-11 |
| Cologix | Retail and wholesale | 451 | 45+ data centers across 13 North American markets, per the Cologix homepage. | — | 131 | — | — | — | — | Yes | 7001 | — | 2026-11-11 |
| Flexential | Retail | 401 | 40+ data centers in 18 markets, per the company financing release. | — | 181 | — | — | — | — | — | — | GI Partners and MSIP | 2026-11-11 |
| Telehouse | Retail | 401 | 40 sites in more than 20 cities worldwide; source calls these sites rather than a separate campus/building census. | — | 201 | — | — | — | — | — | — | — | 2026-11-11 |
| TierPoint | Retail | 402 | 40 data centers connected coast to coast, per the TierPoint locations page. | — | — | — | — | — | 1301 | Yes | — | — | 2026-11-11 |
| Keppel Data Centres | Wholesale and hyperscale | 371 | 37 data centres and 12 countries as shown in the undated platform overview; operating/development split not supplied. | — | — | 121 | — | — | — | — | — | — | 2026-11-11 |
| Iron Mountain Data Centers | — | 321 | Q3 2026: 32 facilities in 21 markets; includes consolidated and unconsolidated joint-venture properties. | — | 211 | — | 544.61 | 1,373.61 | — | Yes | — | Iron Mountain Inc. (division) | 2026-11-11 |
| CoreSite | Retail and wholesale | 301 | 30 data centers in 11 US markets, per the About page. | — | 111 | 11 | — | — | — | — | 5001 | American Tower (NYSE: AMT) | 2026-11-11 |
| Khazna Data Centers | Wholesale and hyperscale | 301 | 30 live data centers across the UAE, as reported on the homepage. | — | — | — | — | — | — | — | — | — | 2026-11-11 |
| QTS Data Centers | Wholesale and hyperscale | 301 | 30+ facilities in QTS’s operational-electricity disclosure; campus locations can contain multiple buildings. Not a campus count. | — | — | — | — | — | — | — | — | — | 2026-11-11 |
| CDC Data Centres | — | 271 | 27 data centres across 12 campuses in five regions of Australia and New Zealand; includes new builds. | 121 | — | 21 | — | — | — | — | — | Infratil and partners | 2026-11-11 |
| Equinix xScale | Wholesale and hyperscale | 241 | 30 Sep 2026 10-Q: 24 xScale data centers, counted inside the parent Equinix footprint. Metros are from the Q2 2025 investor presentation. | — | 132 | — | 3262 | 2,0002 | — | — | — | — | 2026-11-11 |
| 365 Data Centers | Retail | 162 | 16 data centers, as listed on the 365 Data Centers homepage. | — | — | — | — | — | — | — | — | — | 2026-11-11 |
| Sify Technologies | Retail and wholesale | 161 | 16 pan-India data centers; nine upcoming hyperscale and edge sites listed separately. | — | — | — | — | — | — | Yes | — | — | 2026-11-11 |
| KIO Data Centers | Retail and wholesale | 151 | 15+ data centers across five named countries; homepage platform count, without a separate operating/development split. | — | — | 52 | — | — | — | — | — | — | 2026-11-11 |
| Evocative | — | 131 | 13 facilities counted from the Colocation Data Centers list; additional POPs excluded. | — | — | — | — | — | — | — | — | — | 2026-11-11 |
| Green Mountain | Retail and wholesale | 62 | 6 data centers in Norway, the UK and Germany, as listed in the company profile. | — | — | 32 | — | — | — | — | — | — | 2026-11-11 |
| Hurricane Electric | Retail | 31 | Three Bay Area data centers: Fremont 1, Fremont 2 and San Jose. | — | — | — | — | — | — | — | — | — | 2026-11-11 |
| Nabiax | — | 31 | Three facility locations in the November 2024 acquisition announcement: Alcalá de Henares, Julián Camarillo and Terrassa; Alcalá is a multi-building campus. | — | — | — | 352 | 1202 | — | — | — | Aermont Capital | 2026-11-11 |
| Africa Data Centres | Retail and wholesale | — | — | — | — | — | — | — | 202 | — | — | — | 2026-11-11 |
| AirTrunk | Wholesale and hyperscale | — | — | — | — | 71 | — | — | — | — | — | Blackstone-led investors | 2026-11-11 |
| Aligned Data Centers | Wholesale and hyperscale | — | 50 campuses across the Americas; not a count of individual buildings. | 501 | — | 52 | — | 5,0002 | — | — | — | — | 2026-11-11 |
| Ark Data Centres | Wholesale and hyperscale | — | — | — | — | 32 | — | 4461 | — | Yes | — | — | 2026-11-11 |
| Aruba | Retail and wholesale | — | — | — | — | — | — | — | — | — | — | — | 2026-11-11 |
| Ascenty | Retail and wholesale | — | — | — | — | — | — | — | — | — | — | — | 2026-11-11 |
| atNorth | Retail and wholesale | — | — | — | — | — | — | — | — | Yes | — | — | 2026-11-11 |
| Bulk Infrastructure | — | — | — | — | — | 21 | — | — | — | — | — | — | 2026-11-11 |
| Chindata | Wholesale and hyperscale | — | — | — | — | 11 | — | — | — | — | — | — | 2026-11-11 |
| Compass Datacenters | Wholesale and hyperscale | — | — | — | — | — | — | — | — | — | — | — | 2026-11-11 |
| CtrlS Datacenters | Retail and wholesale | — | — | — | — | — | — | — | — | — | — | — | 2026-11-11 |
| DATA4 | Retail and wholesale | — | 10 campuses; buildings and campuses are separate units. | 102 | — | 62 | — | — | — | — | — | — | 2026-11-11 |
| DataVita | — | — | — | — | — | 11 | — | — | — | — | — | — | 2026-11-11 |
| DayOne Data Centers | Wholesale and hyperscale | — | — | — | — | — | — | — | — | — | — | Private; investors include SoftBank Vision Fund, Coatue, Ken Griffin and Baupost | 2026-11-11 |
| EdgeCore Digital Infrastructure | Wholesale and hyperscale | — | — | — | 61 | — | — | 2,2701 | — | — | — | — | 2026-11-11 |
| Element Critical | Retail | — | — | — | — | — | — | — | 1001 | Yes | — | — | 2026-11-11 |
| GDS Holdings | — | — | — | — | — | 11 | — | — | — | — | — | Public (Nasdaq and HKEX listed) | 2026-11-11 |
| Global Switch | — | — | — | — | — | 71 | — | — | — | Yes | — | — | 2026-11-11 |
| Gulf Data Hub | Wholesale and hyperscale | — | — | — | — | — | — | — | — | — | — | KKR strategic investment | 2026-11-11 |
| H5 Data Centers | Retail and wholesale | — | — | — | 251 | 11 | — | — | — | — | — | — | 2026-11-11 |
| Kao Data | — | — | — | — | — | — | — | 1601 | — | — | — | Infratil, Legal & General Capital and Goldacre (Noé Group) | 2026-11-11 |
| maincubes | Wholesale and hyperscale | — | — | — | — | — | — | 4001 | — | Yes | — | — | 2026-11-11 |
| Netrality Data Centers | — | — | — | — | — | 11 | — | — | — | — | — | — | 2026-11-11 |
| NEXTDC | Retail and wholesale | — | Country coverage includes Japan in planning and New Zealand in development; countries are not an operating-only footprint. | — | — | 41 | — | — | — | Yes | — | — | 2026-11-11 |
| nLighten | Retail | — | — | — | — | 71 | — | — | — | — | — | — | 2026-11-11 |
| Novva Data Centers | Wholesale and hyperscale | — | — | — | — | — | — | — | — | — | — | — | 2026-11-11 |
| ODATA | Wholesale and hyperscale | — | — | — | — | 41 | — | — | — | — | — | Aligned Data Centers (acquired 2023) | 2026-11-11 |
| Prime Data Centers | Wholesale and hyperscale | — | — | — | — | — | — | 4,0001 | — | — | — | — | 2026-11-11 |
| Princeton Digital Group | Wholesale and hyperscale | — | — | — | — | 71 | — | — | — | — | — | — | 2026-11-11 |
| Pure DC | Wholesale and hyperscale | — | — | — | — | — | — | 1,0001 | — | Yes | — | Backed by Oaktree Capital Management | 2026-11-11 |
| Sabey Data Centers | — | — | History page reports six campuses, not individual buildings; current location menu also lists newer projects. | 61 | — | — | — | — | — | Yes | — | Sabey Corporation and National Real Estate Advisors; strategic investment from Ares | 2026-11-11 |
| Scala Data Centers | Wholesale and hyperscale | — | — | — | — | 33 | — | — | — | Yes | — | DigitalBridge-managed investors | 2026-11-11 |
| Serverfarm | Wholesale and hyperscale | — | — | — | — | 51 | — | — | — | — | — | — | 2026-11-11 |
| STACK Infrastructure | Wholesale and hyperscale | — | — | — | 241 | 111 | — | 8,5001 | — | — | — | — | 2026-11-11 |
| Stream Data Centers | Wholesale and hyperscale | — | — | — | — | — | — | — | — | Yes | — | Apollo ecosystem operating platform | 2026-11-11 |
| Switch | — | — | — | — | — | — | — | — | 2,0001 | Yes | — | DigitalBridge-managed investors | 2026-11-11 |
| Teraco | Retail | — | — | — | — | — | 2282 | — | — | — | — | Digital Realty | 2026-11-11 |
| US Signal | — | — | — | — | — | 11 | — | — | — | — | — | — | 2026-11-11 |
| Vantage Data Centers | Wholesale and hyperscale | — | — | — | — | 121 | — | — | — | — | — | DigitalBridge-managed investors | 2026-11-11 |
| Verne | Retail and wholesale | — | — | — | — | — | — | — | — | Yes | — | Ardian | 2026-11-11 |
| VIRTUS Data Centres | Retail and wholesale | — | — | — | — | — | — | — | — | — | — | — | 2026-11-11 |
| Yondr Group | Wholesale and hyperscale | — | — | — | — | — | — | — | — | — | — | DigitalBridge-managed investors | 2026-11-11 |
| Yotta Data Services | — | — | — | — | — | — | — | — | — | — | — | — | 2026-11-11 |
Questions buyers ask
Who are the largest colocation providers?
By data center count, the leaders in this table are Digital Realty (300+ data centers), Equinix (282 data centers at 30 Sep 2026), NTT GDC (160+ data centers) and STT GDC (110+ data centres incl. development sites). By operating capacity, NTT GDC (2,000+ MW critical IT load) and Iron Mountain (544.6 MW leasable) publish the largest figures. Counting capacity under development, STACK (8.5+ GW built and under development), Aligned (5 GW contracted and available) and Prime (4 GW operational and planned) publish the biggest platforms. Lumen’s 200+ network colocation locations are network sites, so they sit outside the data center ranking.
Which colocation providers offer liquid cooling?
20 of 70 providers offer liquid cooling to colocation customers, including Ark, atNorth, Cologix, CyrusOne, DataBank, Digital Realty, Element Critical and Equinix. Digital Realty lists 150 kW per cabinet with direct liquid cooling; Switch designs its EVO AI factories for up to 2 MW per rack. The full list with methods is on liquid cooling colocation.
What is the difference between retail and wholesale colocation?
Retail colocation sells cabinets, cages and suites to many tenants in one building, usually with cross-connects to carriers and clouds. Wholesale and hyperscale providers lease whole halls, buildings or build-to-suit campuses by the megawatt. 30 providers here sell retail space (retail list) and 26 sell wholesale and hyperscale only (wholesale list).
Which providers have the most networks on-net?
How much does colocation cost per kW?
Almost every provider quotes per deal, so list prices are rare. Hurricane Electric publishes a bundle: $600 a month for a 42U cabinet with power and 1 Gbps. For a real number, send one requirement (kW, metro, term) through the quote form on any provider page and compare the answers here side by side.
Which certifications do colocation providers hold?
13 providers publish their certifications. DataBank lists FedRAMP and StateRAMP, while DATA4 lists ISO, PCI DSS and HDS standards. Each provider page lists the certifications with the source.
How this table is built
Full methodologyEvery value comes from the provider’s own pages, its owner’s filings or its press releases, with trade press last. The small number next to a figure opens that source. An empty cell means the figure was not verified from the sources read.
Counts follow the source’s unit and date. Built (MW) records operating capacity; Incl. development (MW) can include construction, contracted capacity or future potential. Each record labels the basis. These are not additive market totals. Each row carries the date we last checked it, newest 11 Nov 2026. Spot a stale number? Email hello@colocationcompare.com with the source and we update the row.
Free to reuse under CC BY 4.0 with a link to this page: CSV, JSON, llms.txt.