CoreSite

United States · www.coresite.com · 15 vendors

Resilience scores

Technology vendors

Services catalogue

2 services in catalogue across 1 category; runs on 15 sub-vendors.

Insights

Last updated 2026-08-02 · revision 2

15 direct vendors, 214 subvendors

Direct vendors by controlling owner country (sample)

Subvendors by controlling owner country (sample)

Migration Readiness: 7/10

Assessed by AI based on technology stack characteristics (cloud-native vs legacy, containerization, microservices), regulatory environment, data residency requirements, financial stability, and vendor lock-in risks. The score ranges from 0-10, where higher scores indicate better readiness for technology migration.

CoreSite's core business offerings, such as "Cloud Interconnection / Cloud On-Ramps," "Multi-Cloud Networking," and "Hybrid IT Infrastructure," position them as experts in cloud and hybrid IT environments. This deep understanding of cloud connectivity and management suggests a high level of internal capability and readiness for their own digital migration initiatives. Their internal tech stack includes modern networking technologies like SD-WAN and MPLS, which are foundational for cloud integration. The company's adherence to comprehensive regulatory compliance frameworks (SOC 2, ISO 27001, NIST, FedRAMP, PCI DSS, HIPAA) indicates a disciplined approach to IT governance and security, which streamlines the planning and execution of migrations by ensuring compliance considerations are already embedded. The geographic diversity of their vendor base (spanning multiple countries) could also provide flexibility in sourcing solutions and reduce dependence on a single region for support during a migration. A key challenge is the lack of specific data on CoreSite's internal adoption of cloud-native architectures, containerization, or microservices, which are strong indicators of advanced migration readiness. The "Vendor Lock-in Risk" is unknown, which could present unforeseen complexities and costs during a migration if they are heavily reliant on specific vendors. Furthermore, information on financial stability (to fund a migration) and specific data residency requirements is not provided, creating potential blind spots. The "Total Vendors: 0" (interpreted as a lack of detailed vendor relationship data) makes it difficult to fully assess the extent of vendor concentration and its potential impact on migration complexity.

Compliance

11 in-scope frameworks identified; showing 3.

PCI DSS (source) — Compliant

CoreSite is validated as a PCI DSS Level 1 service provider, the highest level of PCI compliance, with annual assessment by an external Qualified Security Assessor (QSA). Risk is Low because: (1) CoreSite maintains the most rigorous PCI DSS compliance tier (Level 1); (2) annual QSA assessments provide independent validation; (3) the scope is appropriately defined for a colocation provider (physical security and related policies); (4) PCI DSS compliance is a commercial necessity for CoreSite given its financial services customer base. CoreSite's role is as a physical infrastructure provider; payment card data processing occurs at the customer application layer, not within CoreSite's direct control.

Evidence: https://www.coresite.com/data-center-design/compliance, https://www.coresite.com/hubfs/sp-CoreSite-Compliance-by-Location.pdf

NIST 800-53 — Compliant

CoreSite undergoes annual external assessment against NIST SP 800-53 high-impact baseline controls, supporting customers' FISMA and FedRAMP compliance. Risk is Low because: (1) annual independent assessments are conducted; (2) CoreSite uses the high-impact baseline (most stringent tier); (3) the scope has been expanded to include CMMC mapping for DoD customers; (4) this compliance is critical for CoreSite's government/public sector customer segment. CoreSite's Washington D.C. and Northern Virginia locations serve significant federal government and defense contractor customers, making this compliance commercially essential.

Evidence: https://www.coresite.com/data-center-design/compliance, https://www.coresite.com/industry-solutions/public-sector

CMMC — Assessment Required

CoreSite has proactively mapped its NIST 800-53 controls to the CMMC framework for DoD customers. CMMC is required for organizations in the Defense Industrial Base (DIB) that handle Controlled Unclassified Information (CUI) or Federal Contract Information (FCI). As a colocation provider serving defense contractors (particularly at its Northern Virginia and Washington D.C. locations), CoreSite may need to demonstrate CMMC compliance or support customers' CMMC assessments. Risk is Medium because: (1) CoreSite has already taken proactive steps by mapping controls to CMMC; (2) the full CMMC rule implementation is ongoing; (3) the extent of CoreSite's direct CMMC obligations depends on whether it handles CUI directly.

Evidence: https://www.coresite.com/data-center-design/compliance

Financials

Three-year financials

Financial Resilience Score: 8/10

CoreSite demonstrates strong financial resilience underpinned by its position as a subsidiary of American Tower Corporation (NYSE: AMT), an investment-grade REIT with a market capitalization exceeding $100 billion. This parent backing provides significant balance-sheet support for capital-intensive data center expansion that CoreSite could not access as easily as a stand-alone REIT. The business itself generates high-margin recurring revenue from colocation leases, power services, and particularly interconnection revenue (cross-connects and Open Cloud Exchange), which creates strong customer stickiness through network effects with 44,000+ interconnections. Revenue growth has been consistent and durable, with an approximate 10-year revenue CAGR of 14-15% from 2011 IPO through 2021 acquisition, and continued high-single-digit growth of 8-10% annually under American Tower ownership through 2024. The company operates in prime urban markets (Northern Virginia, Silicon Valley, Los Angeles, New York) that command premium pricing, and benefits from strong secular tailwinds including AI/ML compute demand and hybrid-cloud adoption via hyperscaler on-ramps (AWS, Azure, Google Cloud, Oracle). Key risks include high capital intensity in a rising interest rate environment, power availability constraints in key markets like Northern Virginia and Silicon Valley, customer concentration among hyperscale cloud providers, and strategic uncertainty as American Tower has publicly reviewed options for its data center business including potential partial sale or joint venture.

Key strengths: Investment-grade parent (American Tower) provides balance sheet support, High-margin interconnection revenue with 44,000+ cross-connections, Prime urban footprint in top-tier network-dense U.S. markets, Consistent revenue growth (~14-15% CAGR 2011-2021, 8-10% post-acquisition), Strong hyperscaler ecosystem (AWS, Azure, Google Cloud, Oracle on-ramps), AI/ML compute demand tailwind, 30 data centers across 11 U.S. metros totaling 4.8M+ sq ft

Risk factors: High capital intensity for data center development, Rising interest rates increase financing costs, Power availability constraints in Northern Virginia and Silicon Valley, Customer concentration among hyperscale cloud providers, Competitive pressure from Equinix, Digital Realty, and hyperscale-owned facilities, Strategic uncertainty at parent (potential sale/JV of data center business), REIT limitations on retained earnings for reinvestment

Revenue by geography

Revenue by product/service

Workforce by country

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