Middlesex County, Massachusetts
DataCentersExposed tracks 2 AI data centers in Middlesex County, Massachusetts — 2 operating and 0 in the pipeline, led by American Tower Corporation. Its transparent data-center risk score is 0/100.
Sources: Methodology, Coverage scorecard
Middlesex County, Massachusetts has 2 tracked data centers, 2 of them operating. Its composite data-center risk score is 6 out of 100 — see the breakdown above for which factors drive it.
Reporting by Eric Keller · Updated May 29, 2026
- Project exposure · 10
- Power demand · 0
- Water draw · n/a
- Land footprint · n/a
What's happening in Middlesex County
American Tower Corporation has the largest presence in Middlesex County. We resolve project codenames and shell LLCs back to the corporate parent wherever the public record allows, so the table below names who is actually behind each site.
Below: every tracked facility in the county, the active state legislation that names it or its county, and local news. Commissioner vote records arrive in a later release; the placeholders show where that accountability data will land.
Every tracked facility
| Facility | Operator | Status | MW |
|---|---|---|---|
| CoreSite BO1 Somerville | American Tower Corporation | — | |
| Markley Data Center | — | — |
County commissioners
How the Middlesex County board votes on each data-center matter — the rezonings, the abatements, the water permits — is built from public-meeting minutes and roll-call records. Know of a vote we should be tracking? Tell us.