One data center provider. Everything you need.

Hybrid cloud solutions that power your digital transformation journey

Colocation Interconnection Cloud services
Trusted By 1,350+ Customers

Connect to Your Entire Ecosystem of Providers in Low-latency, High-Performance, Edge Markets

You can't predict the future, but you can prepare for it. Businesses choose CoreSite because they know that colocation and connectivity should come with optionality, and that they can grow cost-effectively in major metros while still accessing an ecosystem of 775+ cloud, network and IT providers they need.

  • 27K +


    Our data centers serve as the interconnection hubs in edge markets across the U.S.

  • 450 +


    Connect to subsea cables, global carriers, SDNs and other providers of your choice directly or through peering exchanges

  • 325 +

    Cloud & IT Providers

    Low-latency, high-performance connectivity to nearly any cloud or network you need

  • 100 %

    Uptime SLA

    Our SLA is backed by performance. We achieved six 9s uptime across our portfolio last year.

Hybrid Cloud Made Easy

CoreSite can create a fully managed hybrid cloud solution through our cloud and managed service provider partnerships.

Connect to the cloud for FREE!

For a limited time get secure, direct, on-demand one-to-many cloud access through the CoreSite Open Cloud Exchange®, on us!

IDC’s Perspective: CoreSite overview

Want to hear a third-party perspective on CoreSite? Download a vendor analysis from leading analyst from, IDC.

Tour Our Reston Data Centers Right Now.

Ever wonder what a state-of-the-art data center looks like inside?

How Customers Succeed with CoreSite

With over 40+ industries represented across our data center portfolio, customers benefit from CoreSite’s interconnection-rich data center campuses and see value in connecting to our diverse ecosystem of customers via the Marketplace.

Our commitment to providing an exceptional customer experience and operational excellence is evidenced by an annual customer retention rate of over 90% and a customer satisfaction score that consistently sits above industry average.

See their experiences

CoreSite is Expanding — Contact us to learn more about growth in your market

Denver, CO (DE1 Expansion)

New capacity available

We recently added 15,600 square feet of data center capacity at our downtown interconnection hub

Reston, VA (VA3)

Operational and expanding!

We are adding an additional 50,000 square feet of available capacity this quarter to our newest Reston data center

Washington, D.C. (DC2)

Brand new data center downtown

Our newly available DC2 facility offers 25,000 square feet of capacity directly connected back to DC1

Ready to start your digital transformation journey?