Cloud Security Listings

The Cloud Security Authority directory indexes cloud security service providers, consultancies, and technology vendors operating across the United States. This listings reference describes what the directory includes, how provider records are verified, where coverage is incomplete, and how the listing taxonomy is structured. Professionals seeking providers in cloud security infrastructure, compliance, or managed services can use this reference to understand the classification boundaries that govern how records appear and are categorized within this resource.

What listings include and exclude

Listings in this directory represent organizations that deliver cloud security services as a primary or substantial line of business. Eligible record types include managed security service providers (MSSPs) focused on cloud environments, cloud security posture management (CSPM) vendors, cloud access security brokers (CASBs), specialized cloud security consultancies, and independent assessors conducting cloud-focused audits, penetration testing, or architecture reviews.

Listings do not include general IT service firms where cloud security is incidental to broader IT support offerings, nor do they include hardware-only vendors, generic systems integrators without dedicated cloud security practice areas, or staffing agencies placing cloud security personnel on a contract basis. Academic institutions and nonprofit research bodies are also excluded from commercial listings but may appear in associated reference sections.

The directory's purpose and scope provides fuller context on the rationale behind these inclusion thresholds and the vertical boundaries that define the cloud security service sector for this resource.

Regulatory alignment matters for inclusion decisions. Providers operating under frameworks referenced by the National Institute of Standards and Technology (NIST) — including NIST SP 800-144, which addresses security and privacy guidelines for public cloud computing — and those operating under FedRAMP authorization are specifically eligible for listings in federal-adjacent service categories.

Verification status

Listings carry one of 3 verification states: unverified, pending, or verified. The majority of records in the initial directory build carry unverified status, reflecting that data was collected from public business registrations, vendor websites, and industry databases without direct confirmation from the listed entity.

Pending status applies to records where outreach has been initiated but confirmation from the provider has not been received. Verified status requires that the listed organization has confirmed its business details, primary service categories, and geographic coverage directly through the directory's submission workflow.

Verification does not constitute endorsement, credentialing, or any assessment of service quality. It confirms only that the record data matches what the provider has formally attested. Providers holding active certifications from bodies such as the Cloud Security Alliance (CSA) — including CSA STAR certification — or FedRAMP authorization may display those credentials alongside their listing, but those credentials are issued by the respective certification body, not by this directory.

For guidance on how records are submitted and corrected, the how-to-use-this-cloud-security-resource page describes the data submission and correction process in detail.

Coverage gaps

The directory's national scope prioritizes coverage of providers with established US operations, but geographic density is uneven. Metropolitan areas including San Francisco, New York City, Seattle, Washington DC, and Austin have substantially denser listing coverage than smaller markets. Providers operating exclusively in fewer than 5 US states may have incomplete records or may not yet appear in the directory.

Cloud security is a sector where a significant share of providers operate fully remotely and serve clients across multiple states without maintaining physical offices. Remote-only providers without a registered state business address present classification challenges that result in gaps in geographic filtering.

Functional coverage gaps also exist in emerging subcategories. Cloud-native application protection platforms (CNAPPs) — which combine CSPM, cloud workload protection, and CIEM (cloud infrastructure entitlement management) functions — represent a converging category that does not yet have a dedicated classification in this directory's taxonomy. Records for vendors in this space are currently distributed across 2 or more existing categories pending taxonomy revision.

Additionally, providers specializing in cloud security for operational technology (OT) and industrial control systems (ICS) environments — a sector addressed in part by NIST SP 800-82 — are underrepresented relative to their presence in the market.

Listing categories

Records in this directory are organized into the following primary categories, each with defined classification boundaries:

1. Managed Cloud Security Services (MSSPs) — Providers delivering continuous monitoring, threat detection, and incident response for cloud environments on a subscription or retainer basis. Distinguished from project-based consultancies by ongoing service delivery obligations.

2. Cloud Security Posture Management (CSPM) Vendors — Technology vendors whose primary product automates identification of cloud misconfigurations, policy compliance drift, and remediation workflows. Aligned with control objectives in NIST SP 800-53, Rev 5, particularly configuration management (CM) and audit and accountability (AU) control families.

3. Cloud Access Security Brokers (CASBs) — Providers whose technology sits between end users and cloud service providers to enforce access policy, data loss prevention, and threat protection. CASB functions are distinct from CSPM in that they operate on user traffic rather than infrastructure configuration.

4. Cloud Security Consultancies and Assessors — Firms conducting project-based cloud security engagements including penetration testing, architecture review, risk assessment, and regulatory readiness. This category includes providers qualified under frameworks such as PCI DSS Qualified Security Assessors (QSAs) and HIPAA security risk assessment specialists.

5. Cloud Identity and Access Management (IAM) Specialists — Providers focused specifically on identity governance, privileged access management, and entitlement management in cloud and hybrid environments.

6. Cloud Compliance and Audit Services — Firms delivering cloud-specific compliance assessment, audit preparation, and evidence collection for regulatory frameworks including SOC 2, FedRAMP, and HIPAA Security Rule obligations.

The cloud security listings taxonomy is subject to revision as the service sector evolves. Providers whose offerings span 2 or more categories are listed under their primary service emphasis, with secondary categories noted in the record detail.