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Top Cybersecurity Companies

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Looking for the best cybersecurity company in the United States? 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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1,043 Provider(s)Last Updated: November 3, 2025
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Leaders in advanced network and website Penetration Testing services, risk assessment, IT risk management, IT security consulting & Cybersecurity Framework
Services Offered
Cybersecurity
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Nocdoc

Winston Salem, NC, US See Location
Our Team of SOC Analysts and Engineers are working together to provide Security as a Service. The team works on an advance platform of network, server and endpoint monitoring systems that identifies malicious activity and notifies our team of Actions, Recommendations, and Observations needed to Identify, Protect, Detect, Respond and Recover the technology that runs your business.
Services Offered
Cybersecurity
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Based in Michigan, Nordicom Technologies is a nationwide AT&T Solutions Provider and Microsoft Cloud Solutions Provider for the private and public sector.
Services Offered
Cybersecurity
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We provide our clients with a strategic approach towards meeting their specific business & technology goals, while ensuring that we fully understand both their near-term, mid-term and long term objectives.
Services Offered
Cybersecurity
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Novatech's Managed Office covers IT, copier, printer, security, and document solutions. One tech partner, one support team, one invoice, 24/7/365 support.
Services Offered
Managed Service ProvidersCybersecurity
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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Nozomi Networks

San Francisco, CA, US + 1 More Location
Our Professional Service offerings are designed to streamline the deployment of your security solution and maximize its value.
Services Offered
Cybersecurity
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Nuspire

Commerce, MI, US + 1 More Location
Protect connected IT systems with correlated, 24x7 managed detection and response (MDR) across your gateway, network and endpoint technologies.
Services Offered
Managed Service ProvidersCybersecurity
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OP Technology LLC

Huntington Beach, CA, US See Location
OP Technology LLC is your single point of contact for Managed IT Services such as: Computer Network Support, Network Security, IT Outsourcing, Web Design, Tech Support, & more. Call today!
Services Offered
Managed Service ProvidersCybersecurity
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Our professional services engineers can guide you through every step of your cybersecurity journey: we offer security assessments, solution implementations, custom integrations, ongoing maintenance, and even turn-key management services.
Services Offered
Cybersecurity
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OSA MANAGED SERVICES Your Efficiency Provider From day-to-day IT support, to long term strategic planning, we are the destination for business IT needs. Our SMB platform ensures long term savings through cost analysis and usage statistics, along with simplified onboarding and off boarding for your employees.
Services Offered
Managed Service ProvidersCybersecurity
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OVESTO

St. Petersburg, FL, US See Location
Ensuring your Organization is Protected from Emerging Threats with our, Virtual CISO, Risk Management & Cyber Security Consultant Services.
Services Offered
Cybersecurity
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At OXEN Technology, our deep roots and our trusted people make us a strong IT partner and a leading Midwest managed services provider.
Services Offered
Managed Service ProvidersCybersecurityCloud Consulting
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Omega ATC

Chesterfield, MO, US See Location
Omega Adapt comes with a 24x7 Security Operations Center (SOC) to address threats further down the attack chain. Security specialists leverage an AI-based Security Information and Event Management (SIEM) platform to detect and respond to any suspicious activity. Artificial Intelligence is only as good as the data used to train it.
Services Offered
Cybersecurity
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Omni Tek Solutions

San Francisco, CA, US See Location
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.
Services Offered
Cybersecurity
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Omnistruct

Sacramento, CA, US See Location
Cyber security and privacy programs built and maintained to help US businesses keep privacy data sacred.
Services Offered
Cybersecurity
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We empower the information security industry through our technological innovations and private-labeled security force.
Services Offered
Cybersecurity
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OneCall was originally founded in 1972 as P&H Electronics. From its inception, the company was committed to delivering quality products and outstanding customer service.
Services Offered
Cybersecurity
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While Onward Technology in Utah serves a variety of industries, our IT and tech support services are vital in many educational settings.
Services Offered
Managed Service ProvidersCybersecurity
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OpTech

Troy, MI, US See Location
OpTech is an award-winning consulting firm specializing in connecting Fortune 1000 and government clients by providing tailored solutions within the verticals of government, healthcare insurance, utilities, finance (banking) and manufacturing.
Services Offered
CybersecurityBusiness Process Outsourcing (BPO)
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Open Road Technologies has been serving the greater Memphis area for over 25 years. We are a family-owned and operated business. Because our name and reputation are on the line, we take the time to get to know our customers and their businesses on a personal level. It's what separates us from our competitors.
Services Offered
Cybersecurity
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OTA provides the highest caliber of professionals in the areas Intelligence, Communication Security, and Cyber Operations to protect our Country against threats to National Security.
Services Offered
Cybersecurity
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PAconnect

Greensburg, PA, US See Location
Delivering an exceptional customer experience. We are passionate about technology. Industry Product Certifications are common and necessary. However, Credentialed IT Professionals are the game changers.
Services Offered
Cybersecurity
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PRO OnCall

Independence, OH, US + 1 More Location
Not only does PRO OnCall provide some of the best IT services out there, but our exceptional client relationships make working with us special.
Services Offered
Cybersecurity
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Protect Connect: our name is our mission. We help our clients protect their businesses from pain created by struggles with technology and connect them with the best tools that prevent them from losing time, money and reputation.
Services Offered
Cybersecurity
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PacketViper provides transformative cybersecurity solutions for organizations seeking to modernize cybersecurity across converging OT and IT networks and defend distributed OT endpoints.
Services Offered
Cybersecurity
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Pantek has provided Linux Support & IT services to companies for over 20 years. Contact our Linux Support and Open-Source Software experts to see how we can help!
Services Offered
Cybersecurity
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Since 1990 Paperless Knowledge , Inc. (PKI) has been a leader in providing IT services and solutions for businesses and governments around the world. From conception to completion we work to meet your strategic deadlines and expectations. We are proud of our success, and our long term business relationships. Ranked as one of the Top 500 Veteran Owned businesses in America for 7 years.
Services Offered
Cybersecurity
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Safeguarding American Assets at Home, Abroad, & BEYOND
Services Offered
Cybersecurity
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Parks Zeigler, PLLC

Virginia Beach, VA, US See Location
Virginia Beach lawyers experienced in family law, divorce, personal injury, wills and estates, civil litigation, small business, cybersecurity, bankruptcy, and credit disputes.
Services Offered
CybersecurityBusiness & Corporate LawLicensingMergers and Acquisitions LawSmall Business Law
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Big Bandwidth, Virtual Hosted Business, including Microsoft Office, Exchange, SharePoint, CRM, Servers and custom apps. Enterprise Hosted PBX for reliable voice solutions and business cost reduction. Data Center Solutions from hosting servers to provid...
Services Offered
Managed Service ProvidersCybersecurity
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