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.
List of the Best Cybersecurity Companies in the USA
1,014 Companies-Rankings updated: August 23, 2026
Cybersecurity companies on DesignRush are evaluated for technical expertise, capabilities, and real client reviews to help businesses choose trusted cybersecurity providers. Some listings may be paid.
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ELEKS, a trusted partner for guaranteed software engineering excellence, quality, and transparency.
ELEKS, a trusted partner for guaranteed software engineering excellence, quality, and transparency.
ELEKS delivers penetration testing, compliance audits, and security-by-design consulting, certified under HITRUST, ISO 27001, SOC 2, and CREST. The US cybersecurity firm serves healthcare, fintech, and insurance clients, including ESET. Best for enterprises needing compliance-driven security programs...
LeverX brings 20+ years of SAP-specific security expertise, covering GRC implementation, role and access management, data encryption, and real-time threat monitoring. The cybersecurity services company has completed 950+ projects for over 800 clients across sectors...
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Engineering peace of mind
Engineering peace of mind
Vention offers security audits, application security testing, risk management, compliance, and consulting. The US cybersecurity firm is ISO-certified and has served DealCloud and StoneX. Best fit for companies in fintech and healthcare needing ongoing security assessment and compliance support...
Sigma Software delivers cybersecurity consulting covering security audits, ISMS implementation, secure SDLC, and compliance with ISO 27001, SOC 2, PCI DSS, and DORA. The firm performs 100+ audits yearly and is ISO 27001 certified. Best fit for enterprises in finance, healthcare, and defense...
Accenture is a renowned worldwide IT services company that excels in digital, cloud, and security solutions. With an extensive range of expertise across over 40 industries, we provide a comprehensive suite of services including Strategy and Consulting, Outsourcing, Interactive, Technology, IoT, and...
Experience, expertise, speed, agility, and a dose of pragmatism to drive your business forward!
Experience, expertise, speed, agility, and a dose of pragmatism to drive your business forward!
We help you imagine, create, engineer and run digital solutions that transform how you connect with your customers and grow your business. Through our digital consulting services, we partner with you to iterate and build digital solutions that bring you faster speed-to-market capabilities and stronger...
Grow fearlessly with Eide Bailly, your accounting ally.
Grow fearlessly with Eide Bailly, your accounting ally.
Eide Bailly is the trusted accounting partner for business growth and technology solutions. We embrace change and support companies experiencing growth challenges. We have a local presence in 13 states and a focus on superior accounting services...
Cipher is a global cybersecurity company founded in 2000, offering a comprehensive range of services supported by advanced research capabilities and 24x7 Security Operations Centers. With numerous accreditations and awards, we serve clients ranging from mid-size enterprises to government agencies, delivering...
Engineering Innovation in Big Data, Driving Your Success for Tomorrow.
Engineering Innovation in Big Data, Driving Your Success for Tomorrow.
Xoriant, a Silicon Valley-based leader in product engineering, software development, and Big Data solutions, serves clients from startups to Fortune 100. With expertise across multiple technology areas, including Big Data & Analytics and Cloud, we are committed to accelerating innovation and building lasting...
Quisitive is a premier, global Microsoft Partner that harnesses the Microsoft cloud platform, AI, and complementary technologies, including custom solutions and first-party offerings, to generate transformational impact for enterprise customers...
EY offers Accounting, Business Consulting, and IT Services with a mission to build a better working world. It provides insights and quality services that instill trust in global capital markets and economies. EY focuses on developing exceptional leaders who deliver on their commitments to all stakeholders...
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...
Offering AgTech, Business, and IT Services. Baker Tilly Canada Cooperative is a member of the global network of Baker Tilly International Limited, the members of which are separate and independent legal entities. Baker Tilly Canada refers to the association of member firms of Baker Tilly Canada Cooperative...
Wipfli is a leading accounting and business consulting firm, ranking among the top 20 in the nation. With a century of experience and a forward-thinking approach, we help clients achieve lasting results. Our team of eternal students brings cross-industry expertise and creativity to solve complex challenges...
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...
Protiviti is a global consulting firm that offers deep expertise, objective insights, and tailored solutions to empower leaders in tackling future challenges. With a comprehensive range of services spanning finance, technology, operations, data, analytics, governance, risk, and internal audit, we serve...
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...
Simplifying Your Digital Evolution with Big Data Excellence.
Simplifying Your Digital Evolution with Big Data Excellence.
Trianz enables digital transformations through strategic excellence, powered by knowledge and innovation in Big Data. With a portfolio reflecting 'Digital Evolution Simplified' and over 2,500 successful global partnerships, we lead in leveraging Infrastructure, Cloud, Analytics, Digital, and Security to...
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...
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...
Blending strategic insights and thoughtful design with brilliant engineering, we create durable technical solutions that deliver digital transformation at scale...
Acentra Health delivers a broad range of health information technology enterprise solutions and customizable products to a diverse base of state and federal agencies...
Collaborating for Lasting Impact in Business Consulting
Collaborating for Lasting Impact in Business Consulting
Join us at Deloitte, where we believe that our collective influence is the cornerstone of our value. With a rich legacy spanning over 175 years and a global network encompassing 150 countries, we empower remarkable achievements, solve complex problems, and drive meaningful progress for clients, professionals...
Optiv Security is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly 6,000 companies across every major industry...
Our mission is to connect people with technology that enhances growth, elevates productivity, and empowers innovation.In recent years, we have grown into a Fortune 1000 company. Today, our more than 2,500 employees work in three offices throughout the country, and in our full service, ISO...
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...
Forvis Mazars is a leading public accounting firm ranked among the top 10 in the nation. With a forward vision and unwavering commitment to unmatched client experiences, we redefine excellence in the industry. Formed through the merger of two esteemed firms, BKD and DHG, FORVIS combines legacy and innovation...
We value our team as our greatest asset and we ensure everyone is respected, recognized.
We value our team as our greatest asset and we ensure everyone is respected, recognized.
At 10Pearls, we have an inclusive and collaborative work culture that inspires innovation, drives excellence, and unlocks a team member’s true potential through focused development, shared mission and a sense of community. We value our team as our greatest asset and we ensure everyone is respected...
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...
We provide comprehensive HIPAA solutions and industry-leading cybersecurity to help you securely realize your vision of the future. Our deep technical expertise and innovative technology ensure your data remains protected. Protect your organization and change the world with confidence knowing were here to...
With Cygnet.One, our goal is to seamlessly integrate our offerings empowering organizations to tackle challenges with tech-enabled and data-driven solutions facilitating business process digital transformation. This is achieved through our digital transformation framework, Cygnet Cosmos...
Withum can be the new business advisor relationship you need to inspire innovation for your growth and success. Experience a fresh perspective on embracing what you’ve learned and refocusing your business strategy to thrive in an evolving, complex business environment. Whether you’re looking to strengthen...
NIX is a global software engineering company with over 3,000 professionals, delivering solutions that help everyone from SMBs to large enterprises scale, streamline operations, and achieve measurable results...
Insight Enterprises with deep expertise and end-to-end capabilities, is here to help you prepare for whats next.Insight Enterprises, Inc. is helping organizations accelerate their digital journey to modernize their business and maximize the value of technology...
Aspire Systems stands as a global leader in DevOps consulting and technology solutions, specializing in delivering top-tier digital solutions that drive personalized customer experiences across all channels, from start to finish...
TPx Communications, a leading managed services provider, offers a full suite of solutions to help businesses simplify operations, optimize networks, improve productivity, reduce costs and ensure secure environments. With our commitment to making IT easy, TPx empowers enterprises to grow, compete and...
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...
Navigating Your IT Success in the Digital Landscape
Navigating Your IT Success in the Digital Landscape
New Horizons is a globally recognized IT training and services provider with over 35 years of experience. Our partnership with industry leaders ensures that our courses and certifications span critical areas like Cybersecurity and Cloud Computing...
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...
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...
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...
Codbel indicates substantial growth concerning the technology development cycle to release potential futuristic solutions instantaneously. Codbel brings sole solutions to enhance business profits. We offer smart-standing software solutions corresponding to business needs and customers' demands...
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:
Proposals