Coloprice Score · methodology 2026.08

Best data centers in Seoul, South Korea: 2026 ranking

22 facilities in Seoul, South Korea are in the Coloprice catalog; their median Coloprice Score is 17 out of 100. The table ranks 22 of them by score — computed only from what each operator publishes and what we verified against primary sources.

22 facilitiesColoprice Score · 17 out of 100

Top 22 by Coloprice Score

Who is in this list: Every facility in the catalog located in Seoul, South Korea — operational, under construction and announced. Status is visible in the maturity axis.

#	Facility	Operator	MW	Score	Class
1	Equinix SL2x	Equinix	22	60	C
2	Digital Realty ICN10 (Digital Seoul 1)	Digital Realty	12	54	C
3	STT Seoul 1	STT GDC Korea (joint venture with Hyosung Heavy Industries)	30	51	C
4	LG U+ Pyeongchon Mega Center	LG Uplus	—	47	D
5	Equinix SL4	Equinix	—	40	D
6	Digital Edge SEL1	Digital Edge	2.4	36	D
7	SK Broadband IDC Gasan	SK Broadband	—	32	E
8	LG Uplus Pyeongchon 2 Center	LG Uplus	—	31	E
9	Digital Realty ICN11 (Digital Seoul 2)	Digital Realty	64	20	limited data
10	Equinix SL1	Equinix	—	20	E
11	KT Mokdong IDC2	KT Cloud	—	17	E
12	KT Namguro IDC	KT Cloud	—	17	E
13	KT Yongsan IDC	KT Cloud	—	17	E
14	KT Mokdong IDC1	KT Cloud	—	15	E
15	SK Broadband IDC Ilsan	SK Broadband	—	15	E
16	SK Broadband IDC Seocho	SK Broadband	—	15	E
17	KT Yeouido IDC	KT Cloud	—	13	limited data
18	KT Gangnam IDC	KT Cloud	—	12	limited data
19	Woori Financial Data Center (Sangam)	Woori FIS	—	10	limited data
20	KINX Dogok Center	KINX	—	9	limited data
21	Samsung SDS Sangam Data Center	Samsung SDS	—	9	limited data
22	Sejong IX Center	Sejong Networks	—	9	limited data

CC BY 4.0 · Coloprice data and compilation: free to reuse under CC BY 4.0 with attribution. Figures credited to third parties remain with their sources. License & attribution

Operators of facilities in this list can embed the award badge («Best data center in Seoul, South Korea», «Top 10» …) free of charge — it is on the facility page under «Awards & badges» and links back here.

How we ranked them

Coloprice Score is a 0–100 total of five axes: resilience (tier level weighted by the class of evidence, up to 35), compliance (independent audits, up to 20), transparency (how many of seven key fields are published, up to 20), scale (published MW on a log scale plus liquid cooling and AI readiness, up to 15) and maturity (status and age, up to 10). Every input is a field on the facility card, and every card cites its sources.

Nothing here is opinion or paid placement: an operator can only move up by publishing more data or citing more certificates. A dashed class means the operator disclosed too little for a class to be assigned honestly — the score is still computed. Full methodology, class thresholds and the top-50 across all countries: Coloprice Score rankings.

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