Discover top cybersecurity firms in San Francisco that can protect your business from online threats. DesignRush connects you with agencies trusted by major brands like NHS and Abbvie. With over 40,000 vetted agencies and over 100,000 client-agency matches monthly, you can trust our platform to help you find the right cybersecurity partner. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
Zazz is a cybersecurity company in San Francisco that runs penetration testing, red teaming, and continuous vulnerability scanning alongside 24/7 threat monitoring through SIEM, SOAR, and XDR platforms. Its DevSecOps practice embeds SAST, DAST, and container security directly into client CI/CD pipelines...
San Francisco cybersecurity firm TruAdvantage acts a 24/7 security operations center that detects and contains ransomware and malware threats in real time, across both on-premises and cloud environments. Its email security stack layers spam filtering, encryption, AI-based threat detection, and data loss...
Dedicated Teams That Build Complex Software Systems
Dedicated Teams That Build Complex Software Systems
SiliconMint lists cybersecurity among its core IT consulting specialties, alongside AI, cloud, and DevOps, applying security considerations directly into the software systems it builds. Its engineering teams have handled security-sensitive work like ledger storage for blockchain-based systems...
Vention's application security testing runs end-to-end assessments from surface-level exposure through penetration testing, aiming to reduce breach risk and strengthen incident response readiness. Its consulting arm builds security frameworks, threat models, and risk management plans...
All-inclusive IT. Secure, proactive, and built to scale.
All-inclusive IT. Secure, proactive, and built to scale.
Advanced Networks delivers fully managed IT and cybersecurity from our Los Angeles HQ and offices in Orange County and San Francisco, serving Southern California and the Bay Area. Unlimited support, proactive monitoring, and a full security stack, on a fixed monthly rate with no surprise costs...
Azilen is a cybersecurity company in San Francisco that builds data classification strategies and maps data flow, giving clients visibility into where sensitive information moves and who can access it. Its DASTAC framework extends this to IP protection at both the organizational and employee level...
Certified penetration testers at Polosoft simulate real-world attacks across external, internal, web, and mobile surfaces, following automated vulnerability prioritization built on CVSS scoring. Its compliance automation practice maps controls to cloud resources and user activity for various frameworks...
Over 40 dedicated DDoS scrubbing centers form the backbone of Nexusguard's global network, mitigating attacks close to their source to keep latency low. Its Bastions technology bridges on-premises and cloud protection, giving carriers and ISPs always-on local defense backed...
San Francisco cybersecurity firm Space Cadets sets up email authentication protocols to block spoofing and phishing attempts before they reach an inbox. Its employee security awareness training pairs with this technical setup, teaching staff to recognize the attacks that slip through anyway...
CyberDuo runs 24/7 threat detection and response through managed detection and response, monitoring client environments for signs of compromise around the clock. The firm's security stack extends to identity and access management, zero trust architecture, and vulnerability management...
CQR is a cybersecurity company in San Francisco that runs SOC services for threat monitoring alongside digital forensics and incident response for active breaches, reconstructing attacker timelines and coordinating remediation. Its compliance consulting covers SOC 2, HIPAA, PCI DSS, and ISO 27001...
Collaborating for Lasting Impact in Business Consulting
Collaborating for Lasting Impact in Business Consulting
Deloitte's cybersecurity practice combines monitoring technology, advanced analytics, and threat intelligence to neutralize risks before they escalate. Forensic specialists step in during active incidents to investigate, contain, and guide organizations through end-to-end restoration...
Rollout AI offers managed detection and response, vCISO guidance, dark web monitoring, and phishing protection backed by 26+ years of experience. Its unlimited-ticket, flat-fee model suits small and mid-sized businesses looking to replace an unresponsive IT provider...
Cure8 secures cannabis operators with zero-trust network firewalls, ransomware removal and recovery, and 24/7 monitoring across POS, ERP, and back-office systems, paired with licensing compliance audits and surveillance equipment setup. Trusted by Everest Cannabis Co and Tokyo Smoke...
Connect, observe & control LLMs, MCPs, Guardrails & Prompts
Connect, observe & control LLMs, MCPs, Guardrails & Prompts
TrueFoundry provides an enterprise AI Gateway spanning LLM Gateway, MCP Gateway, and Agent Gateway enabling organizations to securely govern agentic AI workloads from a single control plane...
Varsity Technologies brings 25+ years of San Francisco cybersecurity services expertise, layering in endpoint detection, zero-trust architecture, & a dedicated security operations center, with multiple compliance audits. Best for nonprofits & social organizations working with sensitive, regulated data...
Withum is a cybersecurity services provider in San Francisco with 50+ years of experience, covering incident response, digital forensics, penetration testing, and compliance. An ideal partner for financial services, healthcare, and government contractors relying on regulatory-driven security programs...
Zazmic builds AI-driven security operations on Google Cloud, pairing Gemini-powered threat detection with Mandiant frontline intelligence drawn from 15+ years of strengthening enterprise environments. It suits organizations scaling AI adoption across healthcare, financial, and manufacturing sectors...
EY offers 37+ years of expertise in Cyber Incident Resilience & Response, combining forensics, threat intelligence, & crisis communications into one response team. With 10+ Stevie Awards & clients like Microsoft & Apple, it is a strong choice for enterprises facing complex, high-stakes incidents...
Ideators Digital runs a full cybersecurity practice spanning red team operations, threat hunting, digital forensics, and compliance audits. Trusted by Verizon and KPMG, the cybersecurity company in San Francisco offers 18+ years of experience, completing 418+ projects and earning 80+ industry accolades...
More Than Code We Build Trust Through Craft & Commitment
More Than Code We Build Trust Through Craft & Commitment
Blue Trail Software folds penetration testing, system hardening, and DevSecOps pipelines into its software engineering work. Backed by 10+ years of building for brands like Samsung and Cartier, it suits product teams needing secure development built into a broader engineering partnership...
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