Mag Datacenters LLC, operator of Denver private data center business Fortrust, is being bought by a Boston firm for $128 million.

Iron Mountain Inc. (NYSE: IRM) said it's buying 15-year-old Fortrust, which "is a leading provider of multi-tenant data center space in the Colorado/Mountain region."

Fortrust "enjoys a strong regional presence while also serving as a critical location for customers seeking East-West data center redundancy," Iron Mountain said in a statement.

Fortrust is located at 4300 Brighton Blvd. in north Denver.

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