CoreSite's robust ecosystem provides an interconnected platform to address your IT strategy needs in and across our eight edge markets.


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Denver, CO

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Founded in 1995 to reduce the digital divide caused by slow Internet speeds and get the communities we serve on the map for competitive high-speed Internet, cloud and phone services. Since 1995, is one of Colorado’s largest independent locally owned internet, cloud and communications service providers with offices in Denver, Grand Junction and Durango, offering a portfolio of enterprise-level cloud hosting, Internet, voice and data solutions.

The Denver Business Journal ranked as a Top 15 Telecommunications Company and a Top 15 Internet Service Provider. ColoradoBIZ Magazine listed it as one of Colorado’s Top 250 Private Companies. accredited A+ member. We are also one of the fastest growing private companies in Colorado as ranked by the Denver Business Journal. provides high speed Internet service over Fiber, licensed wireless, EoC, T1 and DSL. We also provide MPLS services (point-to-point and point-to-multipoint) across any type of last mile. Our Internet access is second to none with extensive private peering - right here in Colorado we directly peer with Comcast, Cogent, CenturyLink, Level3, Telia, Zayo, Hurricane Electric, Microsoft, Google, Yahoo, Apple, and soon Netflix. We have the best bandwidth for either your eyeballs or your content, and we offer exceptional content-bandwidth specials.

Our network services footprint covers two states - Denver, Colorado Springs, Albuquerque, Farmington, Durango, Telluride and Grand Junction.

In voice, offers advanced SIP Trunk and Hosted PBX products with optional quality-guaranteed last mile connectivity.

In cloud, we offer leading-edge VMware based IaaS Cloud Services, with multiple server redundancy and automatic workload restoration in the event of server failure.


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