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Iron Mountain MUM-3

Navi Mumbai, Maharashtra, India · Mumbai metro market · location approximate to district level

Iron Mountain MUM-3 is a data center project in Navi Mumbai, India, operated by Iron Mountain Data Centers (Web Werks JV). It is under construction. It is planned for 85 MW of IT load.

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Stage
Under construction
Planned IT load
85 MW
Running now
Not disclosed
Operators rarely publish this
Operator
Iron Mountain Data Centers (Web Werks JV)
Joint venture
AI workloads
Likely
Evidence grade
Corroborated

How well evidenced is it

Construction or financing is evidenced, or several independent signals agree. The rules are fixed and published on the Methodology page.

Reaching this stage requires a dated construction source, which corroborates the project on its own.

Named funderYes
Disclosed clientNo
Committed or approved capitalNo
Dated, sized phaseYes
Three or more sourcesNo
Dated source in the last 24 monthsYes

AI workloads

StatusLikely

Operator describes hyperscale-ready capacity; 85MW greenfield.

Access to AI chips

GradeNo US licence required

This country carries no US destination-based licence requirement for advanced AI chips as the rules are enforced today. Access is a commercial matter between the project and its vendors. Criteria are published on the Methodology page.

US licence required for this destination as enforcedNo
A party headquartered in China or Macau on the projectNo
Country-level export frameworkNo
A party named in a government authorisationNo
US approved operator or confirmed client on the projectNo
Named chip-vendor partnershipNo

No US destination-based licence requirement as enforced · No US destination-based licence requirement as enforced (2026-09-27) source

Phases

MUM-3 · Under construction85 MW, target 2028

Stage history

2023-06-09Announced · telecomtalk.info
2026-09-27Under construction · ironmountain.com

Who is behind it

OperatorIron Mountain Data Centers (Web Werks JV) · Joint venture
Funder, Joint venture partnerIron Mountain
Funder, Joint venture partnerWeb Werks

No tenant disclosed. Most colocation leases are confidential, so this says nothing about occupancy.

Power supply
Dedicated substationunspecified (MSEDCL area) · 120 MVA · Jun 2023 Reported source ↗
Approved additional substation for the campus per the JV's 2023 release. · Applies to the whole campus.

Sources checked 2026-09-27

  1. Mumbai Data Centers | India Colocation | Iron Mountain (Iron Mountain (operator site, accessed), 2026-09-27)
  2. Web Werks – Iron Mountain Data Centers JV to Expand Mumbai Campus With Third Facility (TelecomTalk, 2023-06-09)

More in Mumbai metro

Planned MW is IT load, the power available to servers, unless marked otherwise. Running capacity is rarely published, so a missing figure means undisclosed. Definitions, sourcing standards and evidence rules are on the Methodology page. Data is CC BY-NC 4.0. Corrections go to [email protected]. Dataset updated 2026-09-27.