To provide you with only the top cybersecurity companies in the USA, our 12 veteran experts have extensively vetted each listing using our five main ranking criteria. We have also vetted over 800 of their client reviews to equip you with a well-researched, unbiased assessment of each provider’s capabilities.

United States ×
  • See Beyond, Rise Above.

    See Beyond, Rise Above.

    Persistent Systems, a renowned global leader in software product development and technology services. Delve into our innovative offerings to stay ahead in the ever-evolving landscape of technology...

    Top Services:

    • AI Development
    • Software Development
    • Web Development
    • Mobile App Development
    • Blockchain
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    Location
    Santa Clara, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up
  • Elevating Security Worldwide

    Elevating Security Worldwide

    Securitas, a leading IT security and services agency, prioritizes client safety and protection through its extensive network of district managers and security officers. With a nationwide presence spanning five geographic regions, Securitas delivers personalized security solutions tailored to meet diverse...

    Top Services:

    • IT Services
    • Cybersecurity
    Location
    Parsippany-Troy Hills, New Jersey
    Number of Employees
    1000 & Up
  • Cultivating Tradition, Powering Innovation.

    Cultivating Tradition, Powering Innovation.

    Koniag Government Services (KGS) offers IT services to Federal Government Agencies. Founded under the Alaska Native Claims Settlement Act of 1971, KGS embraces a corporate culture rooted in Indigenous values and traditions. With a commitment to community care and environmental stewardship, KGS offers...

    Top Services:

    • IT Services
    • Mobile App Development
    • Cloud Consulting
    Location
    Chantilly, Virginia
    Number of Employees
    1000 & Up
  • We Bring Your Innovative Ideas to Life

    We Bring Your Innovative Ideas to Life

    Ciklum is a global Digital Solutions Company for Fortune 500 and fast-growing organisations alike around the world. The company is headquartered in London and has software development centres and branch offices in the United States, Spain, Switzerland, Denmark, Israel, Poland, Ukraine, Belarus, UAE and...

    Top Services:

    • Software Development
    • eCommerce Development
    • IT Services
    • Cybersecurity
    • AI Development
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    Location
    New York City, New York
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000
  • Best award-winning software development company in South Korea.

    Best award-winning software development company in South Korea.

    Time Tec South Korea is a top-rated, multi-award-winning software development company providing a full suite of services and solutions like mobile application development, software development, Microsoft Dynamics 365 development, web development, ServiceNow consulting, and cybersecurity consulting to small...

    Top Services:

    • Software Development
    • Mobile App Development
    • Cybersecurity
    • AI Development
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    Location
    Meridian, Idaho
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • Engineering Quality, Securing Digital Success.

    Engineering Quality, Securing Digital Success.

    Qualitest is the worlds leading managed services provider of AI-led quality engineering solutions. It helps brands transition through the digital assurance journey and make the move from conventional functional testing to adopt innovations such as automation, AI, blockchain, and XR...

    Top Services:

    • Software Testing
    • AI Development
    • Big Data Analytics
    • Cybersecurity
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    Location
    Santa Clara, California
    Number of Employees
    1000 & Up
  • Kroll is the leading independent provider of risk and financial advisory solutions.

    Kroll is the leading independent provider of risk and financial advisory solutions.

    As the leading independent provider of risk and financial advisory solutions, Kroll leverages our unique insights, data and technology to help clients stay ahead of complex demands...

    Top Services:

    • Cybersecurity
    Location
    New York City, New York
    Number of Employees
    1000 & Up
  • A Comprehensive Analysis of the State of Ddos Attacks Throughout 2024

    A Comprehensive Analysis of the State of Ddos Attacks Throughout 2024

    NSFOCUS is an iconic internet and application security company with over 20 years of proven industry experience. Today, we operate globally with over 4000 employees at two headquarters in Beijing, China, and Santa Clara, CA, USA, and over 50 offices worldwide. NSFOCUS protects four of the ten largest global...

    Top Services:

    • Cybersecurity
    Location
    Milpitas, California
    Number of Employees
    1000 & Up
  • We Help Midmarket And Enterprise Organizations Across The US, Canada And The World

    We Help Midmarket And Enterprise Organizations Across The US, Canada And The World

    As a leading IT consulting and outsourcing services firm, Buchanan Technologies helps organizations across North America turn their business technology into a powerful competitive advantage. Small, mid-size, and Fortune 100 businesses all rely on us for our expert perspective, technical know-how and...

    Top Services:

    • Cybersecurity
    Location
    Dallas, Texas
    Number of Employees
    1000 & Up
  • Specialized in managed IT, SD-WAN, intelligent networks, and cybersecurity solutions.

    Specialized in managed IT, SD-WAN, intelligent networks, and cybersecurity solutions.

    Our company offers a full stack of managed IT solutions so that you can streamline operations and consolidate efforts, giving you maximum performance with minimum running costs...

    Top Services:

    • Managed Services
    • Cloud Consulting
    • Cybersecurity
    Location
    Houston, Texas
    Number of Employees
    1000 & Up
  • Empowering enterprises to transform through human ingenuity and engineering excellence.

    Empowering enterprises to transform through human ingenuity and engineering excellence.

    Visionet is a leading IT services firm delivering digital experiences, enterprise modernization, Data & AI applications, and managed IT services. We leverage digital, data, and cloud technologies to meet clients needs efficiently. Serving diverse sectors, we simplify complexities and foster innovation. With a...

    Top Services:

    • IT Services
    • AI Development
    • Big Data Analytics
    • Cloud Consulting
    • DevOps Consulting
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    Location
    Cranbury, New Jersey
    Number of Employees
    1000 & Up
  • Create smiles through great people and technology

    Create smiles through great people and technology

    Hexaware is a global technology and business process services company. Every day, Hexawarians wake up with a singular purpose: to create smiles through great people and technology. With offices across the world, we empower enterprises worldwide to realize digital transformation at scale and speed...

    Top Services:

    • IT Services
    • Managed Services
    • AI Development
    • Software Development
    • Cloud Consulting
    • Show more
    Location
    Jersey City, New Jersey
    Number of Employees
    1000 & Up
  • Innovating With Excellence

    Innovating With Excellence

    CSM Technologies Limited is a CMMI Level 5 certified GovTech company with 27+ years of experience in driving digital transformation for governments and enterprises. With expertise across data, AI, analytics, and emerging technologies, CSM delivers scalable, secure, and citizen-centric solutions that enhance...

    Top Services:

    • Cybersecurity
    Location
    Tampa, Florida
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $50,000 & Up
  • Shaping the future together.

    Shaping the future together.

    Atos is a global IT services and consulting firm providing end-to-end data engineering, data-platform modernization, analytics/BI, AI/ML and cloud-native data services helping enterprises transform raw data into insight and drive digital transformation...

    Top Services:

    • Big Data Analytics
    • IoT
    • Cybersecurity
    Location
    Irving, Texas
    Number of Employees
    1000 & Up

Cybersecurity Companies FAQs

What services do top cybersecurity companies in the USA provide?

They offer a comprehensive range of services to protect a business from digital threats and attacks. According to IBM’s latest report, businesses are increasing their investments in these top 5 services: 

  • Threat intelligence and analysis (43%): Gathering data on cyberthreats, adversary behaviors, and emerging vulnerabilities to proactively defend systems  
  • Data security and protection tools (37%): Implementing firewalls, encryption, and data loss prevention (DLP) solutions to ensure the confidentiality and integrity of a company’s data
  • Incident response and testing (35%): Developing and testing a strategy to monitor, identify, and manage threats to minimize business damage  
  • Security awareness training (33%): Educating employees on the latest security best practices and the company’s security protocols
  • Offensive security testing (32%): Employing ethical hacking and penetration testing to simulate real attacks to uncover and address vulnerabilities

What is a typical project implementation timeline for this industry?

Typically, cybersecurity implementation can take a few months to over a year, depending on your current security stature, IT infrastructure, industry-specific regulations, and project scope and complexity. 

Here's an approximate cybersecurity timeline: 

Stage Tasks 

System audit and requirement analysis 
(1 month) 

  • Identifying business needs and high-priority system issues 
  • Developing a cybersecurity roadmap 

System Design 
(1-3 months) 

  • Crafting system architecture and an integration plan
Policy development 
(1-2 months) 
  • Establishing security policies, procedures, and frameworks
System development 
(4-6 months) 
  • Configuring cybersecurity solutions, such as firewalls and encryption tools 
System Testing 
(3-4 months) 
  • Conducting penetration, regression, and other quality tests to ensure system reliability and usability 
Implementation
(1-3 months) 
  • Ensuring the cybersecurity system’s deployment readiness and transferring it to a live environment 
  • Conducting employee and stakeholder training 

 

How much do businesses allocate for cybersecurity?

Depending on service scope, business size, number of devices, IT infrastructure complexity, and compliance requirements, businesses allocate 5-20% of their IT budget to cybersecurity. 

Here’s an approximate breakdown according to business size: 

  • Small businesses (less than 100 employees) allocate 5-10% of their IT budget for cybersecurity, as they typically cover fewer systems and users. 
  • Medium-sized companies (100-1,000 employees) invest 8-15% of their tech budget, as they may need more comprehensive endpoint and cloud security services. 
  • Large enterprises (1,000+ employees) dedicate 10-20% of their technological budget, often requiring 24/7 security operations, full compliance and support audits, and more complex security solutions. 

How often should businesses audit their cybersecurity?

Approximately 23% of security breaches stem from IT failure, and 26% are caused by human error — both of which are preventable with regular security audits. 

Here’s how often you should conduct cybersecurity audits according to best practices: 

  • Annual audits for comprehensive audits of your entire system, including your policies, frameworks, network, and recovery plan.  
  • Biannually and quarterly to achieve regulatory compliance (e.g., PCI DSS and HIPAA), protect highly sensitive data, and manage complex infrastructures. A common practice is to conduct monthly vulnerability assessments and quarterly penetration testing. 
  • Immediately after a reported incident or a change in your infrastructure (e.g., implementing a new enterprise resource planning system).  

What US industries benefit from cybersecurity services?

While all industries benefit from working with top cybersecurity companies, research shows that certain sectors experience more threats than others. Here are the sectors with the most damaging breaches and the share of breaches exceeding $1 million: 

  • Healthcare: 47% 
  • Tech, Media, and Telecom: 43% 
  • Financial: 38% 
  • Energy, Utilities, and Resources: 37% 
  • Industrial and Auto: 33% 
  • Retail and Customer: 28% 

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