CoreSite's diverse ecosystem makes it easy for you to connect and find IT services to address your business needs.

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CoreSite Customers and Service Providers

Tap into our ever-growing customer ecosystem and quickly locate IT services available throughout our eight markets and 20 operational facilities. The CoreSite Marketplace provides a user-friendly interface for finding and connecting to companies that will provide IT services to fuel your business growth.




ACI Solutions

ACI Solutions is a premier provider of information technology, security and staffing services.

Alibaba Cloud

Alibaba Cloud is a globally top ranked cloud service provider. It provides a comprehensive suite of cloud computing services to power your business.

Allied Telecom

Based in Washington DC, we're a single source provider of Internet, Data Transport, Hosted Voice, SIP, IP PRI and Unified Communications Services.

Amazon Web Services

AWS Direct Connect makes it easy to establish a dedicated network connection from your IT infrastructure to AWS.


AMS-IX USA Inc. deploys the neutral & distributed IXPs: AMS-IX Bay Area, AMS-IX Chicago and AMS-IX New York in the United States.


We fill the gap when 1U is not enough and 42U is too many.

BBH Solutions

BBH Solutions is an IT-centric company providing both "on premises/off premises" hosted voice/data/video solutions, including infrastructure & wireless.


BBIX is a carrier-neutral Internet Exchange in Japan and Asia.


BlackMesh, an enterprise hosting service provider headquartered in Ashburn, VA, specializes in managed support with unlimited 24x7x365 tech support.

BlueWater Trading Solutions

BlueWater Trading Solutions is an independent software vendor (ISV) and technology provider for traders, educators, brokers and FCMs.


BT Global Services delivers managed network IT services for business and government organizations in over 192 countries and territories.


CDS is a specialist provider of enterprise-level data center systems, maintenance, and support.

CHT Global

The U.S. subsidiary of the largest telecom provider (CHT) in Taiwan, supports multinational enterprise network solutions with its global infrastructure and professional consultations.


CIFNet is a hosting company and, as such, provides managed dedicated servers, webhosting, colocation, IP Transit and VPS & Cloud services.


CITIC Telecom CPC delivers comprehensive managed ICT solutions for enterprises in 120+ countries, with significant local experience in Mainland China.

Cloud Grid

Cloud Grid helps businesses improve their technology with our on-premise and securely hosted solutions. Cloud Grid is the secure way to cloud.


Cloudstar provides secure cloud infrastructure to regulated industries.

CMC Networks

CMC Networks is a supplier of data connectivity services in Africa & the Middle East.

Cogent Communications

Cogent Communications is a multinational, Tier-1 facilities-based ISP, consistently ranked as one of the top five backbone networks in the world.

Colorado Communications Transport

Colorado Communications Transport (CCT) offers high quality middle mile transport in northeast Colorado.


Colt provides network and voice services with on-demand, direct access to more than 560 data centers and 23,000+ buildings in over 200 cities globally.


Comcast Business Ethernet can privately connect an organization to its IT resources housed in a CoreSite data center, bypassing the public Internet.


Console Inc, The Global Software-Defined Interconnect company. The SDI™ enables programmable interconnect between Networks/Cloud/Content/SaaS Providers.

Cross River Fiber

Cross River Fiber is a boutique dark fiber optic and telecommunications solutions provider that designs, constructs, and maintains its own network.


CrossRealms provides IT solutions for forward-thinking companies. We offer managed services and consulting, and partner with you to control costs.

DE-CIX North America

With 140+ networks, DE-CIX North America offers multiple IX platforms throughout the NY/NJ metro and the only data center-neutral IX in Dallas–Fort Worth.

Digital Edge

Digital Edge provides unparalleled Managed Cloud Solutions, as well as superior Information Technology Support Services.

Digital West

Digital West is a data infrastructure provider delivering connectivity, cloud, and consulting services for businesses.


Unleash productivity to the power of X with hosted unified communications, connectivity, and managed IT services.


Dstillery is a pioneer in marketing technology, leading the evolution from digital advertising into predictive marketing.


EarthLink is a facilities-based provider of carrier and enterprise network services delivering great customer experiences in a cloud connected world.

Electric Lightwave™

Electric Lightwave™, an Integra company, is a trusted network infrastructure partner to enterprises, government agencies and carriers throughout the western United States.


Epsilon provides connectivity and infrastructure outsourcing solutions to Communications, Applications, Content and Cloud service providers globally.

FiberLight, LLC

FiberLight is a premier provider of fiber-optic based, high-performance networking services over its 1.6M fiber miles in FL, GA, MD, TX, VA & DC.


FirstLight provides fiber-optic data, Internet, data center and voice services to enterprise and carrier customers throughout the Northeast. is a leading regional provider of Internet, telephone and cloud services, with a network footprint spanning two states.


The FRGP advances the goals of research and education communities in Colorado and Wyoming by providing a consortium based network infrastructure.

Global Capacity

Global Capacity is a connectivity as a service company that improves the efficiency and reduces the cost of buying network end to end ubiquitously.

Global Frag Networks

Global Frag Networks provides a variety of online services such as dedicated servers, colocation, and cloud hosting with protection against DDoS.


GTT operates a global Tier 1 IP network connecting to any location in the world and with any application in the cloud.

Handy Networks, LLC

Handy Networks, LLC is proud to offer hosting options including self managed dedicated servers and fully managed dedicated servers.

Hibernia Networks

Hibernia Networks provides diverse, low latency, high capacity solutions connecting major financial and commercial centers throughout the world.

Host Virtual

Host Virtual provides BGP Anycast IaaS and network services from 21+ pops in North/South America, Europe, and Asia.

Hudson Fiber Network

Hudson Fiber Network helps customers increase network efficiency and lower overall networking expenditures with a suite of solutions.


iland, a global cloud hosting provider, delivers enterprise cloud solutions with true, built in innovation, transparency and intelligent management.

IPTP Networks

IPTP is an international Internet service provider(AS41095), systems integrator and software development company.


Level 3 operates and maintains a global communications network to help deliver secure managed solutions for enterprises, carriers and governments.

Lightower Fiber Networks

Lightower Fiber Networks is the premier, all-fiber provider of custom, high-capacity network services.


The London Internet Exchange (LINX) is one of the largest Internet exchanges in the world, connecting over 700 members from over 70 countries.


Cloud Hosting, Managed Services and Hybrid Infrastructure solutions provider with a global network and footprint of cloud location facilities.

Madison Technology

IT managed services, technology solutions and cloud solutions provider.

Massive Networks

Massive Networks, a data managed service provider (DMSP) specializes in providing managed security, monitoring, routing of GIG and wave services.

Microsoft Azure ExpressRoute

ExpressRoute connectivity is available at four CoreSite markets via the CoreSite Open Cloud Exchange.

MTS Healthcare

MTS Healthcare is focused on reducing the cost and complexity of IT by providing simple and cost-effective HIT and cloud solutions.

Neutral Path

Neutral Path is the heartland's premier carrier neutral transport network. Their backbone runs between key points in Denver, Omaha and Minneapolis.

NewCloud Networks

NewCloud Networks is a national cloud service provider specializing in VMware hybrid cloud, cloud backup, virtual desktop and hosted PBX.


Facilities-based provider of nationwide network services, including MPLS, Ethernet, Internet access, private line, voice and next-generation security.


Providing managed DNS and dynamic DNS Since 1999. There are no upsides to downtime. We know DNS.


The Ns3i platform enables the instant provisioning of physical IT infrastructure and network services to build a data center on-demand.

NTT Communications

NTT Communications is a leading global wholesale IP provider. Its tier-1 Global IP Network (AS 2914) covers the Americas, Asia, Europe and Oceania.

Oneiric Systems

Oneiric Systems specializes in providing high bandwidth network, render, and storage solutions with focus on the media & entertainment industry.


Fully automated network platform enables instantaneous, direct and secure provisioning of terabit-scale connectivity between any on-net locations.

PLDT United States

PLDT (US) LTD is a subsidiary of a leading telecoms company in the Philippines.


RediCloud makes cloud services simple, practical, and affordable for businesses of any size.

Seaborn Networks

Seaborn is transforming global communications as the preeminent developer of submarine cable systems with an independent cable operator model.

Shelcomm, Inc.

Shelcomm, Inc. is a carrier that specializes in VoIP, wholesale SMS text messaging, and PBX telephone systems for small to medium sized businesses.

Sipi Asset Recovery

Sipi Asset Recovery, an IT Asset disposal Co. is now a tenant at CoreSite Chicago offering certified onsite hard drive wiping and destruction services.

Southern Cross

Southern Cross provides low latency, high availability single provider ring capacity solutions between Australia, New Zealand, Fiji, Hawaii and CONUS.


STIGroup is an information security consulting firm that provides a full suite of information security services.


Sunesys is a leading provider of fiber optic networks and transport.

Tata Communications

The Tata Communications global network provides connectivity to more than 240 countries and territories across 400 PoPs.

Telia Carrier

Telia Carrier owns and operates one of the world's most extensive fiber backbones.

Telkom USA, Inc.

Telkom USA, Inc. provides telecommunications products and services, information technology products and business services, and remittance.


TOWARDEX specializes in providing innovative and optimized IP and connectivity solutions for the cloud and network-enabled enterprises.

Transitional Data Services

Transitional Data Services (TDS) provides data center services including migrations, consolidations and technical operations.


TSG provides a single portal to manage telecom, fraud, spend, business continuity, intelligent routing, and near real time access to all call data.


UFINET is a neutral telecom "one stop shop" wholesale operator who provides agility, flexibility and neutrality to it's customers.


UPN provides high-bandwidth, fiber-based communication networks and services to schools, governments, carriers, data centers and enterprise customers.

US Dedicated

US Dedicated provides dedicated servers, VPS and managed infrastructure utilizing High-Performance IP and Advanced DDoS Mitigation/Protection.

Verizon Enterprise Solutions

Verizon Enterprise Solutions offers a full range of global solutions over secure mobility, cloud, strategic networking and advanced communications platforms.

Vibe Communications

We provide wholesale and carrier services for the Australasian market; transit, layer 2 services & last mile tails for both Australia & New Zealand.


Virtela, an NTT Communications Company, is the smart alternative for enterprise networking and virtualized IT services.


Virtutel is a full Service Voice and Data Services Carrier providing services within the Australia and Asia Pacific Area.


Vivid-Hosting is a premier dedicated server and IP Transit provider specializing in low latency communications where reliability is the only option.


International IaaS provider offering Internet hosting solutions across 17 of the most interconnected data centers in Europe and USA.

Wide Cloud

Wide Cloud is a South Florida based Internet and voice provider. Our commitment to our customers and service quality is what sets Wide Cloud apart from the rest.


Windstream is the provider of choice for four out of five Fortune 500 companies for data, voice, network and cloud solutions.


Faster speeds. More bandwidth. Customized solutions. Big savings. Enjoy high performance fiber-based Ethernet and Internet service now.


X2nSat provides Satellite Network services for Enterprise and Utility companies. We have coverage throughout the Americas, from Canada to Argentina.


Xfernet is a premier Los Angeles-based provider of cloud-based solutions, delivering enterprise level services to businesses of all sizes worldwide.


YellowFiber is a different kind of NSP. We’re local to DC, but we have a nationwide network footprint. FASTER INTERNET | SMARTER CLOUD

Zadara Storage

Zadara Storage Virtual Private Storage Arrays™ (VPSA™) offer high-performance, highly available NAS and SAN enterprise storage-as-a-service.

Zayo Network Services

Zayo is a leading provider of bandwidth infrastructure services including fiber and bandwidth connectivity.


ZyEdge LLC is one of the leading providers of managed IT and cyber security services in the United States.