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Top Cybersecurity Companies in San Francisco, CA

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Looking for the best cybersecurity company in San Francisco? UpCity compiles authentic reviews, company descriptions, project examples, and more into a list for you to review. Feel confident you're finding the top provider for your business.

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50 Provider(s)Last Updated: April 22, 2025
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NextLabs

San Mateo, CA, US
Services
Cybersecurity
Business Summary:
The core of NextLabs' data-centric security solutions is our Dynamic Authorization technology with Attribute-Based Access Control (ABAC).
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Nozomi Networks

San Francisco, CA, US
Services
Cybersecurity
Business Summary:
Our Professional Service offerings are designed to streamline the deployment of your security solution and maximize its value.
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Omni Tek Solutions

San Francisco, CA, US
Services
Cybersecurity
Business Summary:
In the wake of the highly-connected Internet of Things (IoT) and the rise of the cloud, we’re facing increased vulnerabilities to our networks—networks that are less monolithic, legacy architectures and more distributed, microservice-based networks. With large-scale data breaches making headlines, whether you’re a small startup or an enterprise organization, security should be a top priority.
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Port53 Technologies, Inc.

San Francisco, CA, US
Services
Cybersecurity
Business Summary:
Bringing enterprise-grade, cloud-delivered technologies that are easy to deploy, simple to manage, and extremely efficient to small and medium-sized businesses
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REALSEC

Redwood City, CA, US
Services
Cybersecurity
Business Summary:
REALSEC is a European technology company with an international presence, part of the Utimaco Group , which develops Cybersecurity solutions based on certified Hardware Security Module (HSM) for encryption systems, digital signature, PKI, time stamping and the highest security for Blockchain environments.
2022 Study: 50% of SMBs Have a Cybersecurity Plan in Place | UpCity

This UpCity study presents insight from 600 U.S. small business owners and IT experts on their latest cybersecurity practices, data breach prevention, and disaster recovery measures in 2022.

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Ramisun Inc

Newark, CA, US
Services
Cybersecurity
Business Summary:
Ramisun, Inc is a growing IT & Business Consulting and Managed Services Provider. Ramisun is the best Cyber Security service provider in Silicon Valley America.
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RedShift Networks

San Ramon, CA, US
Services
Cybersecurity
Business Summary:
RedShift Networks, making cloud based real-time Unified Communications and Collaboration RedShift Networks is a leader in securing Cloud based VoIP networks and provides the industry's first complete security solutions
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Riordan Consulting

San Francisco, CA, US
Services
Cybersecurity
Business Summary:
We leverage clients needs to help them achieve what they need most, business flow and continuity. It is our professional philosophy that businesses generally do not necessarily need cutting edge technology; they simply need their current technology infrastructure to work when they need it.
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Riscure

San Francisco, CA, US
Services
Cybersecurity
Business Summary:
Riscure is a global security lab offering security services and tools. We offer excellent insight driving more secure device software and hardware.
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Services
Cybersecurity
Business Summary:
Sapphire Software Solutions is the world's leading independent, end-to-end IT services and solutions company, helping customers harness the power of innovation to thrive on change.
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Sennovate

San Ramon, CA, US
Services
Cybersecurity
Business Summary:
Sennovate is a global Identity and Access Management and SOC service provider. We help you find the best SSO, MFA, IGA, PAM and SOC solutions
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Skyen, LLC.

San Francisco, CA, US
Services
Cybersecurity
Business Summary:
Keeping your network secure is easily the most important thing you can do to protect your business from the threats of the internet. It seems like every other day we see new security breach headlines of financial institutions, grocery stores, credit agencies, etc. But what people often overlook is the fact that we are all targets for cybercriminals to some degree.
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Software Next Door

San Francisco, CA, US
Services
Cybersecurity
Business Summary:
Our Cybersecurity services cover a review of all IT infrastructure, assets and information such as the Cloud, network, operating systems, databases, applications, firewalls and devices, helping clients to create and design comprehensive security policies and plans that include vulnerability and risk management.
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SpearMC Consulting

Pleasanton, CA, US
Services
Cybersecurity
Business Summary:
Get to know SpearMC! Since 2004 we've been helping businesses and organizations unlock their true potential. Along the way, we've been privileged to work with both medium-sized businesses to some of the largest organizations in the country, and have enjoyed the unique challenges of every project. Our deep knowledge of ERP systems and integration, IT strategy, and operational improvements helps us consistently deliver excellent service and real ROI for our clients.
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TachTech

San Francisco, CA, US
Services
Cybersecurity
Business Summary:
Securing your applications and hardening them is a long-term commitment. In the face of unprecedented vulnerability and increasing attack surfaces, achieving compliance is not nearly enough. Improving your breach prevention posture requires sustained investment and multiple defenses. TachTech can help.
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