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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: October 30, 2025
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AllStar.Guru

Wimberley, TX, US See Location
Outsourced IT Services and Premium IT Support?AllStar.Guru is a Texas-based company providing expert technical support and Managed IT Services nationwide. Our service technicians use secure Remote Management Monitoring (RMM) software to deliver fast pr...
Services Offered
Cybersecurity
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Cybersecurity & I.T. Business Solutions, Jupiter, Florida
Services Offered
Cybersecurity
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Alpine Cyber offers a full range of security services to match your needs. Choose from vulnerability assessments, penetration tests, managed security suite, strategic advisory, and more.
Services Offered
Cybersecurity
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Medical device and heathcare cybersecurity assessment and testing, penetration testing, cybersecurity certification training, CISO as a Service (CaaS).
Services Offered
Cybersecurity
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YOUR TRUSTED IT SOLUTIONS PROVIDER IN THE GREATER LOS ANGELES AREA From Firewalls, VOIP and Networks to Servers, Backups and Desktop Support, Alternate Network Technologies has you covered with extensive experience and proven track record. Start explor...
Services Offered
Cybersecurity
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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AIS provides custom IT solutions that fit the unique needs of each of our clients and help them achieve their IT and budgetary goals. We offer skills and expertise to fill gaps on your team, as well as guidance and best practices on infrastructure design and cybersecurity strategy.
Services Offered
CybersecurityBusiness Process Outsourcing (BPO)
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Amerinfosec

Jacksonville, FL, US See Location
For years, Amerinfosec has been providing quality, personalized IT Security, Audit, and Compliance services to government and non-government clients. Amerinfosec expertise ranges from basic IT security staff augmentation services to more in-depth consulting services such as IT security advisory and risk assessment services.
Services Offered
Cybersecurity
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Enterprise businesses require a multi-layered approach to network security. Amplex Internet has the experience to seamlessly incorporate a client and employee authenticated framework of security that can scale as your business grows.
Services Offered
Cybersecurity
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Anantics

Livonia, MI, US See Location
Anantics provides professional consulting services to assess cybersecurity risks in the organizations and provide needed solutions.
Services Offered
Cybersecurity
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Anchor Technologies offers a full suite of cybersecurity services and products to ensure the security of your organization.
Services Offered
Cybersecurity
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Anvilogic

Palo Alto, CA, US See Location
Anvilogic is a Palo Alto based cybersecurity company founded by veterans from across the security industry.
Services Offered
Cybersecurity
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We connect people with opportunity and customers with top IT talent. Looking for the right fit? Find it at www.apexsystemsinc.com.
Services Offered
CybersecurityStaffingHuman Resources
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Apple IT Services

Palm Beach Gardens, FL, US See Location
Lester IT Solutions is a Security Outsourcing Service Provider, located in Palm Beach Gardens Florida, offering fully managed IT services with an emphasis on cybersecurity. Our mission is to make Enterprise level IT Security Management affordable and usable for Small Businesses and Independent Professionals.
Services Offered
Cybersecurity
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Archefact Group

San Francisco, CA, US See Location
Our services encompass the responsibilities of the board as a whole, as well as those of individual committees and directors, and are customized to meet the specific circumstances, issues, and risks your company faces.
Services Offered
Cybersecurity
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Arctic Wolf

San Antonio, TX, US + 2 More Locations
Arctic Wolf's security operations center (SOC)-as-a-service, anchored by our Concierge Security? team, is the industry's most fierce MDR & Managed Risk solution.
Services Offered
Cybersecurity
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Ardent Privacy

Catonsville, MD, US See Location
Enable and automate data privacy, data protection compliance, and data-centric security; Discover & map sensitive data assets at scale with our patented technology.
Services Offered
Cybersecurity
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Argentum IT

Louisville, KY, US See Location
Argentum IT is the premier Managed Services IT provider in the Greater Louisville area for small to medium-sized businesses.
Services Offered
Managed Service ProvidersCybersecurityCloud ConsultingVirtual Assistant
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Ariel IT

Louisville, CO, US See Location
Cyber Security, IT help in the Boulder Denver metro area, Managed IT services, VOIP, Cloud services, Office 365, small business computer support, networking
Services Offered
CybersecurityBusiness Process Outsourcing (BPO)
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Ascent Systems, Inc.

New Kensington, PA, US See Location
Started in 2002, Ascent Systems is a complete technology solution provider. We are 100% committed to making sure business owners have the most reliable and professional IT service in Pittsburgh. Our team of talented IT professionals can solve your IT nightmares once and for all.
Services Offered
Cybersecurity
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Aspectx

Prospect, KY, US See Location
Founder and Pres. Aspectx, Professional Marketer, PR Professional, CI Analyst, & part-time CEO/Executive Director of the Technology Association of Louisville KY
Services Offered
Cybersecurity
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Assero Security

Cedar Park, TX, US See Location
Bringing Enterprise Level Security to your Business. We clarify complex security regulations for organizations so they can be concentrate on their business.
Services Offered
Cybersecurity
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Revolutionary cybersecurity used by the most sensitive levels of the government and the Fortune 500. Serving enterprise, government and infrastructure.
Services Offered
Cybersecurity
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Atsec

Austin, TX, US See Location
atsec information security is an independent, privately-owned company that focuses on providing laboratory and consulting services for information security. We address commercial and government sectors around the world.
Services Offered
Cybersecurity
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Avаnсé IT Solutions, LLC brings over two decades of experience helping small to mid-sized organizations deliver improvement through efficient use of technology.
Services Offered
Cybersecurity
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Avexon

Metairie, LA, US See Location
We are here to help our clients embrace the fast paced digital transformation while supercharging how they design, develop, and turn out new capabilities to pursue new products, markets and customers. Our staff of highly skilled consultants tailor world-class technology to your needs, budget, and goals.
Services Offered
Cybersecurity
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Coffee's brewing! Come by and have a cup. We can chat about how Avid's Internet and phone services can make your business operate more efficiently. Avid is more than just your phone company--we will help you tailor your communications infrastructure.
Services Offered
Cybersecurity
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Avrua, LLC

Citrus Heights, CA, US See Location
AVRUA is an approachable, strategic Managed Service Provider (MSP) aimed at providing small to medium-sized businesses with ideal solutions for IT success.
Services Offered
Cybersecurity
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Axigent Technologies Group, Inc.- A full-service provider of Information Technology services specializing in Managed Services, Cloud Services, and Network Security.
Services Offered
Managed Service ProvidersCybersecurityCloud Consulting
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Axiom

Jacksonville, FL, US See Location
Axiom provides expert IT Consulting and Solutions for small to medium-sized businesses in Jacksonville, FL and beyond. Contact us to talk about your needs.
Services Offered
Managed Service ProvidersCybersecurity
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Axiom Cyber Solutions - Making cybersecurity affordable, attainable, and accessible to all businesses. Offering managed cybersecurity and a polymorphic threat intelligence plug-in for MikroTik RouterOS
Services Offered
Cybersecurity
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