18 operators · 44 facilities · 1,102 MW tracked
Data center companies in South Korea
18 operators run 44 tracked data centers in South Korea: 38 operational, 6 under construction or announced, 1,102+ MW of published IT capacity. Built from operator and registry sources — a shortlist of the market, not an exhaustive census.
How many data center companies operate in South Korea?
Coloprice tracks 18 data center operators with 44 facilities in South Korea. The largest by facility count is KT Cloud (8 facilities); by published IT capacity it is NFD Korea with 300 MW disclosed. Counts reflect the Coloprice catalog as of 2026-09-26.
Largest by tracked facilities
- KT Cloud 8 facilities
- SK Broadband 5 facilities
- Samsung SDS 5 facilities
- Digital Edge 4 facilities
- LG Uplus 3 facilities
Largest by published capacity
- NFD Korea 300 MW published
- LG Uplus 200 MW published
- Digital Edge 103 MW published
- LG CNS 100 MW published
- Naver Cloud 87 MW published
Operators in South Korea
Sorted by tracked facilities, then published capacity. MW is the sum of capacity each operator publishes for its South Korea sites — undisclosed values are not estimated.
| Operator | Facilities | Published MW | Cities | Status | Certifications | AI-ready |
|---|---|---|---|---|---|---|
| KT Cloud | 8 | not published | Seoul, Seongnam (Pangyo), Daejeon | 8 live · 0 pipeline | TIA-942 Rated 3-4 (per operator description) | — |
| SK Broadband | 5 | 30 MW (1 of 5 sites) | Seoul, Seongnam (Pangyo) | 5 live · 0 pipeline | Uptime Institute Tier III | — |
| Samsung SDS | 5 | not published | Seoul, Suwon, Chuncheon, Hwaseong (Dongtan) +1 | 5 live · 0 pipeline | not published | — |
| Digital Edge | 4 | 103 | Incheon, Seoul, Busan (Mieum, Gangseo-gu) | 3 live · 1 pipeline | ISO 14001, ISO 27001, ISO 45001 | 2 |
| LG Uplus | 3 | 200 MW (1 of 3 sites) | Seoul, Paju | 2 live · 1 pipeline | ISO 20000, ISO 27001, ISO 9001 | 1 |
| Equinix | 3 | 22 MW (1 of 3 sites) | Seoul | 3 live · 0 pipeline | ISO 14001, ISO 22301, ISO 27001 | — |
| LG CNS | 2 | 100 MW (1 of 2 sites) | Busan (Mieum, Gangseo-gu), Yongin (Jukjeon) | 2 live · 0 pipeline | Korea Green Data Center A+++ | — |
| Naver Cloud | 2 | 87 | Chuncheon, Sejong | 2 live · 0 pipeline | LEED Platinum | 1 |
| KINX | 2 | 10 MW (1 of 2 sites) | Gwacheon, Seoul | 2 live · 0 pipeline | Tier III+ (operator-claimed) | 1 |
| NHN Cloud | 2 | not published | Seongnam (Pangyo), Gwangju | 2 live · 0 pipeline | Tier III (일부 Tier IV 기준 적용) — self-described by operator | 1 |
| NFD Korea | 1 | 300 | Dangjin | 0 live · 1 pipeline | not published | 1 |
| Korea AI Computing Center (KOACC) — Samsung SDS-led consortium | 1 | 80 | Haenam, Jeollanam-do (Solasido Data Center Park) | 0 live · 1 pipeline | not published | 1 |
| Princeton Digital Group | 1 | 48 | Incheon | 0 live · 1 pipeline | not published | 1 |
| Kakao | 1 | 40 | Ansan | 1 live · 0 pipeline | not published | — |
| Private investment consortium / Hyundai Engineering & Construction | 1 | 40 | Pohang | 0 live · 1 pipeline | not published | 1 |
| STT GDC Korea (joint venture with Hyosung Heavy Industries) | 1 | 30 | Seoul | 1 live · 0 pipeline | LEED Gold, Uptime Institute Tier III Certification of Design Documents | — |
| Digital Realty | 1 | 12 | Seoul | 1 live · 0 pipeline | G-SEED, ISO 14001, ISO 27001 | 1 |
| Woori FIS | 1 | not published | Seoul | 1 live · 0 pipeline | not published | — |
AI-ready operators in South Korea
10 of 18 operators mark at least one South Korea facility as AI-ready (published liquid cooling or high-density design): Digital Edge, LG Uplus, Naver Cloud, KINX, NHN Cloud, NFD Korea, Korea AI Computing Center (KOACC) — Samsung SDS-led consortium, Princeton Digital Group, Private investment consortium / Hyundai Engineering & Construction, Digital Realty.
See also
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FAQ
Which is the largest data center company in South Korea?
By tracked facilities: KT Cloud with 8 sites. By published capacity: NFD Korea with 300 MW. Facility counts and MW come from operator pages and registries; published megawatts describe site design, not vacant capacity for a new order.
Do all of these companies sell colocation in South Korea?
No. The list includes colocation and wholesale operators as well as hyperscaler- or enterprise-owned sites that do not sell space. Open each facility card for status, certifications and the operator's own page before requesting a quote.
How is this list of South Korea data center companies built?
From the Coloprice catalog: every facility is recorded from a primary source (operator website, press release, certification registry), so a company appears here when at least one of its South Korea sites is tracked. No operator pays for placement, and the ranking is not for sale.
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