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Top Cybersecurity Companies

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Cybersecurity Providers
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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.

UpCity offers objective, independent research and verified user reviews. We earn compensation from some providers who sign up for sponsored profiles. Learn more about our trusted providers.

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1,025 Provider(s)Last Updated: April 29, 2025
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Kaizen Solutions Group

Baltimore, MD, US
Services
Cybersecurity
Business Summary:
KSG’s approach to cybersecurity is intrinsically tied to risk management. Through the lens of risk we evaluate your existing tools and technology, processes and policies. Our certified and experienced consultants who have expertise in each of the areas below will provide you with advice, guidance and educate you on the industry best practices and national standards.
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Kamin Associates, Inc.

San Antonio, TX, US
Services
Cybersecurity
Business Summary:
We are an Information Technology based company in San Antonio, Texas. We specialize in computer systems management and networking solutions.
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Keane Technologies

Kirkwood, MO, US
Services
Cybersecurity
Business Summary:
Keane Technologies is focused on serving the IT needs of clients in a variety of Highly regulated industries including, but not limited to: Healthcare, Finance, Non-Profit Organizations and Education.
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Key Cyber Solutions

Richmond, VA, US
Services
Cloud ConsultingCybersecurity
Business Summary:
Key Cyber Solutions is based out of Richmond, Virginia. We are a HubZone certified IT consulting firm that specializes in  agile software development services, program management and infrastructure services, cyber security and cloud and managed services.
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KirkpatrickPrice

Nashville, TN, US
Services
Cybersecurity
Business Summary:
The latest in data security is only as current as the latest malicious attack. KirkpatrickPrice lives on the cutting edge of information technology and regulatory compliance to keep your company ahead of trends, ahead of criminals, ahead of the game.
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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Kivu Consulting

San Francisco, CA, US
Services
Forensic AccountingCybersecurity
Business Summary:
Combining technical and legal expertise to deliver investigative, discovery and forensic solutions worldwide.
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Knight Systems

Las Vegas, NV, US
Services
Cybersecurity
Business Summary:
For over 20 years, Knight Systems has provided their clients full-service Network and IT Solutions for our clients in Las Vegas and nationwide.
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Knights of Bytes

Omaha, NE, US
Services
Managed Service ProvidersCybersecurity
Business Summary:
Knights of Bytes is a locally owned computer support company in Omaha, Nebraska. We provide reliable, competent, responsive computer support to businesses in the Omaha and Lincoln metro areas. I
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KnockTurn Labs

Pleasant Hill, MO, US
Services
Cybersecurity
Business Summary:
We are a Kansas City based provider of business telecom, phone, tech support, cyber security, and cloud solutions. Local phone and tech support!
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Services
Cybersecurity
Business Summary:
I fell in love with technology when I got my first Nintendo. From that first experience, I started taking things apart to learn how they worked and sometimes failed to put them back together. I’ve come a long way since those formative experiences – to this day I look for ways to improve what I work on.
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Kyyba Inc

Farmington Hills, MI, US
Services
Cybersecurity
Business Summary:
Kyyba offers IT, Engineering, Technology, Training, Customized Project Solutions and Business Consulting Services (www.kyyba.com). Kyyba staffing solutions (staffing.kyyba.com) provides excellent service in helping to match customers and candidates to ...
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L3 Networks

Cypress, CA, US
Services
Managed Service ProvidersCybersecurity
Business Summary:
L3 Networks is a managed information technology (IT) services provider based in Cypress, California. They offer cybersecurity, network operations, cloud, systems, user, and device management, as well as professional technology consulting services for businesses across various industries, such as manufacturing, entertainment, finance, healthcare and more.
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LMQ TECHNOLOGY

Philadelphia, PA, US
Services
Cybersecurity
Business Summary:
LMQ Technology was formed with one goal in mind; to develop and deliver innovative and diverse IT solutions and security services designed to enhance, optimize, and protect your business.
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LMRoss, Inc.

Bethany, OK, US
Services
Cybersecurity
Business Summary:
Helping integrate cloud and on site services to work best for your company. 16 years of excellence in service and support.
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Services
Cybersecurity
Business Summary:
We pride ourselves on providing software development that is high quality and meets the verification standards set forth by the OWASP ASVS Project (Application Security Verification Standard). We follow a secure software development lifecycle, ensuring that proper authentication methods, adequate encryption, and security features are built into your software from day one. This prevents costly downtime and makes your application much more difficult to hack, reducing your risk, costs
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Lantego

Georgetown, TX, US
Services
Cybersecurity
Business Summary:
Effective information security requires not only a mature operational process in-house but timely expert application of known processes from experienced professionals when needed. Lantego provides decades of experience and industry-leading methods to set your organization on the right path to appropriately managing your information security risks. Certification Training
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Larry the Computer Guy

Commerce, MI, US
Services
Cybersecurity
Business Summary:
Business security is our primary focus. We have the tools and experience to keep you safe from the constant threats of the Dark Web.
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Services
Managed Service ProvidersCybersecurity
Business Summary:
Layer 3 Communications provides industry leading solutions for the world's most demanding information technology needs.
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Layer Ti

Augusta, GA, US
Services
Cybersecurity
Business Summary:
Leverage your tech with a comprehensive cyber security, data backup, and managed IT solution, right here in Augusta.
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Layton Flower Technologies

Council Bluffs, IA, US
Services
Managed Service ProvidersCybersecurity
Business Summary:
Layton Flower Technologies specializes in Outsourced IT Services, providing Data Backup and In-house IT Support in Council Bluffs, IA, and Omaha, Bellevue, Papillion, La Vista, Chalco, NE.
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LeaderQuest

Jacksonville, FL, US
Services
Cybersecurity
Business Summary:
LeaderQuest is an IT school with a strong focus on cyber security training and IT certification. Work with our amazing IT career center to find and qualify for in-demand IT jobs across the nation!
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Leonard-McDowell

Zionsville, IN, US
Services
Cybersecurity
Business Summary:
LeonardMcDowell’s unique cyber security solutions illuminate threats based on the real time correlation of network traffic analysis and threat detection.
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Services
Cybersecurity
Business Summary:
Providing Information Technology and Cybersecurity Services
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Leverage IT Consulting

Sacramento, CA, US
Services
IT ServicesBusiness Process Outsourcing (BPO)Cybersecurity
Business Summary:
Leverage IT Consulting brings the experience and professionalism in applying proven IT management principles, services and technologies required to significantly enhance the performance, improve service and support for our client.
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LeviathanSecurity

Seattle, WA, US
Services
Commercial SecurityCybersecurity
Business Summary:
Information Security. Governance, Risk, and Compliance. Threat Modeling. Secure Development. Information Policy. We understand these. We understand how important they are to your business. We learn your business, and how you use information. W...
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Leysath Security

Philadelphia, PA, US
Services
Cybersecurity
Business Summary:
Leysath Security Consulting Firm is a #minority-owned #christian business.We make it our business to #Protect God's People and Property.
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LightChange Technologies

Louisville, KY, US
Services
Cybersecurity
Business Summary:
LightChange Technologies is Kentucky's premier IT managed solutions provider and information technology solutions provider, serving Internet Service Providers, Cloud Service Providers, utilities and energy, enterprise data centers
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Services
Cybersecurity
Business Summary:
LightStorm Security specializes in unique and innovative training solutions for organizations possessing or looking to create cybersecurity functions.
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Live Compliance

Charlotte, NC, US
Services
Cybersecurity
Business Summary:
Keep your federal and state compliance requirements organized and on track. Identify vulnerabilities within your organization and remediate them before they become a liability. Forget about compliance...without actually forgetting about compliance.
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Living Security

Austin, TX, US
Services
Cybersecurity
Business Summary:
Living Security provides engaging and intelligence-driven Cyber Security Awareness solutions to employees in the enterprise. We help you reduce risk by engaging your employees with security and training them effectively to change behavior.
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