/Companies

Cybersecurity Startups

4,352 companies tagged Cybersecurity, with their investors and founders.

Goquantum

A quantum technology company with a core engineering team based in Chile and a legal presence in Germany. The page provides limited detail about specific offerings.

1 investor

GoTrust ID

GoTrustID makes hardware security keys for multi-factor authentication, including its Idem Key USB security key that supports protocols such as FIDO2, U2F, PIV, OTP and OpenSSL. The company targets organizations and individuals seeking phone-free MFA and protection of digital assets.

1 investor

GovCIO

GovCIO delivers IT solutions and services to U.S. federal government agencies, including the military and Health and Human Services, using Agile methods to optimize operations and prepare customers for future challenges. The company operates a specialized services division and an independent subsidiary (GovCIO Media & Research) focused on federal IT insights.

1 investor

Governmentcio

GovCIO provides IT services to U.S. federal government agencies, covering strategy, digital transformation, data management, and cyber security. Its work includes citizen-facing product development and enterprise security support for clients across national security, health, and civilian markets, including a cyber security partnership with the FBI.

1 investor

Gradient Cyber

Gradient Cyber provides Managed Extended Detection and Response (MXDR) services combining proprietary XDR technology, 24/7 security operations, and expert analysts for mid-market organizations. The company delivers enterprise-grade cybersecurity tailored to specific business needs rather than one-size-fits-all solutions.

1 investor

GRAX

GRAX is a Salesforce data protection platform offering continuous backup, granular and point-in-time recovery, and archiving of Salesforce data, metadata, files, and attachments. It targets Salesforce administrators and IT teams, letting organizations retain data in their own cloud (AWS, Azure, GCP, or on-prem) for security, governance, and compliance.</parameter> <parameter name="sector_codes">["saas", "data_infra", "enterprise"]

1 investor

Gray Wolf

Gray Wolf AI operates an investigation intake service for reporting cryptocurrency-related crimes such as ransomware blackmail, sextortion, exchange hacks, account takeover fraud, impersonation, and investment, phishing, or romance scams. The service collects incident and blockchain transaction details from victims to support crypto theft and fraud investigations.

1 investor

Grcsolutions

GRC Solutions offers purple teaming services that combine red team and blue team security exercises in continuous engagement to identify vulnerabilities and build security operations capabilities. The service targets organizations with established security teams, regulated industries, and businesses preparing for cyber threats or compliance audits.

1 investor

Greenbone

Greenbone provides open source vulnerability management solutions that detect security gaps and weaknesses in IT infrastructure before they can be exploited. Its products are available as a hardware appliance, a virtual machine, and an entry-level offering (OpenVAS Basic), serving companies and organizations worldwide.

1 investor

GREYMATTER.IO INC.

Greymatter.io provides a Zero Trust Networking platform that secures and manages service-to-service connectivity for enterprises across multicloud and hybrid environments. The platform combines identity, encryption, policy enforcement, orchestration, analytics, and integration to control how applications, APIs, and AI workloads communicate while centralizing security and observability.

1 investor

Gridless Power

Gridless develops battery technology and energy-efficient power solutions for organizations with demanding power requirements. The company focuses on sustainable, reliable, and safety-tested power products.

1 investor

Groomla

Groom Lake provides intelligence, security operations, and incident response services for cryptocurrency protocols, funds, and institutions. The company applies military and government intelligence practices to identify and mitigate digital asset risks and cybersecurity threats.

1 investor

Groupe Ozitem

Groupe Ozitem provides cloud computing solutions including SaaS, IaaS, and PaaS services, offering businesses backup, security scanning, telephony infrastructure, and custom support tools to optimize IT operations. The company serves enterprises seeking to externalize infrastructure management and reduce operational costs through cloud-based service models.

1 investor

Gruenderfonds Ruhr

2NA FISH develops a spatial RNA detection platform using nanostructure-enhanced probes for oncology research and pathology workflows. The platform combines brightfield RNA biomarker analysis on standard fluorescence microscopes with AI-powered software for quantification and cell-level readouts.

1 investor

Grvty

GRVTY is a national security company delivering capabilities across cyber, space, and spectrum domains. It provides mission and technical expertise to support U.S. defense and deter threats.

1 investor

Gts Central Europe

GTS provides cloud infrastructure, cybersecurity, and telecommunications services for businesses, including public cloud hosting, virtual private servers, dedicated storage, security audits, DDoS protection, internet access, and data center facilities. The company serves enterprises across Romania and operates secure data centers designed to meet international compliance standards.

1 investor

Guard0

Guard0 is an AI agent security and governance platform that discovers every AI agent, assistant, and MCP server across a company's endpoints, platforms, and custom builds, then maps what each can access and assigns a named owner. It applies five controls (discovery, posture, testing, runtime, governance) via read-only connectors and can be deployed as SaaS, in a customer's own cloud, or air-gapped.

1 investor

Guardara

Cybersecurity company focused on fuzz testing, with a flagship product called FuzzLabs.

1 investor

Guardian Analytics

Guardian Analytics provides an AI-powered platform that unifies fraud prevention and anti-money laundering (AML) compliance for financial institutions. It serves credit unions and community banks, offering real-time transaction monitoring, compliance reporting, and automated financial crime investigations.

1 investor

Guardin

Guardin AI provides a suite of AI/ML models for trust and safety teams, detecting bad actors and abusive content, supporting escalation handling across multiple languages, and labeling custom datasets for in-house model training. It offers API integration, real-time performance monitoring, activity logging, and SOC 2 compliance for platforms that need content moderation.

1 investor

GuidePoint Security

GuidePoint Security provides purple teaming assessments that combine red and blue team exercises to test an organization's security defenses, incident response procedures, and threat detection capabilities. The service helps organizations validate their controls, identify vulnerabilities, and enhance their security posture through collaborative exercises and expert training.

1 investor

Gula Tech Adventures

Gula Tech Adventures invests in and supports cybersecurity companies, combining venture investments with philanthropy and cyber advocacy. It draws on the founders' experience building cybersecurity firms and team members from industry and government.

1 investor

Gunnisonconsulting

Gunnison is a federal contractor that provides cybersecurity, intelligence and automation, and digital services to the U.S. government. The company has partnered with federal agencies since 1994 to address complex technology challenges.

1 investor

HACKERverse

HACKERverse deploys AI-powered autonomous agents in isolated cloud environments to test and validate cybersecurity tools by executing real attack techniques, generating cryptographically-signed evidence of tool effectiveness. The platform serves security teams and vendors evaluating defensive capabilities.

1 investor

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