GuidePoint Security

GuidePoint Security is a Reston, Virginia-headquartered cybersecurity consultancy that has grown from a 2011 start-up into one of the largest independent offensive security and advisory firms in the United States, with more than 800 employees and a client base of over 4,000 organisations, including roughly 40% of the Fortune 500 and more than half of US federal cabinet-level agencies. The company operates dedicated practices for application security, threat intelligence, cloud security, identity, governance/risk/compliance, and third-party risk management, alongside its penetration testing and red team services.

GuidePoint holds FedRAMP 3PAO, PCI QSA, and HITRUST CSF Assessor accreditations, and its offensive practice delivers application, network, cloud, wireless, IoT, mobile, API, and physical penetration testing as well as red teaming, purple teaming, adversary simulation, and assumed-breach engagements. GuidePoint's model is distinctive: a local-practitioner-led delivery network with strong vendor-agnostic advisory bolted onto pen testing, which clients often use to turn findings directly into procurement and remediation roadmaps.

GuidePoint Security is best suited to US-headquartered enterprises, particularly regulated ones in financial services, healthcare, and federal/SLED, that want a nationwide consultancy with both offensive depth and a broad advisory bench. Not typically a first-choice for European-only scopes.