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
5 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.
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...
Location
Bellevue, Washington
Number of Employees
1000 & Up
Average Hourly Rate
$40/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
14 Projects Listed
Sigma Software Services
Software Development
Web Design
Mobile App Development
VR/AR
Business Consulting
Web Development
UI/UX Design
Cybersecurity
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Knorr-Bremse
AstraZeneca
Volvo Penta
SAS
Fortum
Mindvalley
Aol.
IGT
Viaplay
DanAds
Data sourced from the agency's DesignRush profile
Sigma Software Reviews & Testimonials
Nikita Vershinin
VP of Engineering at Ankorstore
5.0★
Software Development Review from Nikita Vershinin
We've partnered with Sigma Software for almost three years, and they proved to be a strong partner with whom we'll keep working. Their adaptability and willingness to get things done are unique, setting
them apart from other providers. Moreover, they demonstrate a strong sense of ownership.
Michael Meyer
Managing director at trendwaerts GmbH
5.0★
Software Development Review from Michael Meyer
We were so positively surpised and happy about Sigmas services - as usual I might add. It is a pleasure working with their software engineers. After we provided a briefing, the effort estimation came right away. Shortly after the project started we could see first tangible results. The code quality was excellent and comprehensive. Minor feedback was implemented right away. What can I say more: 10 out of 10 points!
Esther Howard
Founder / CEO at Bezyl
5.0★
Mobile App Development Review from Esther Howard
The client is incredibly happy with Sigma's services and work. It has referred 3 other clients who also say how much they really love the team and process to get set up with the agency. Sigma is a fantastic company with excellent experienced professionals. Its experts care about quality and customer satisfaction, and they operate like the internal team's extension. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile
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HebronSoft: Navigating Better Software Development! We're a socially responsible global Flutter developer company, offering a wide array of services for medium to large-sized businesses. Specialties include custom software, healthcare solutions, legacy modernization, and more, with a strong focus on social...
Location
Cocoa Beach, Florida
Number of Employees
50 - 99
Portfolios Count
6 Projects Listed
Hebronsoft Services
Software Development
Mobile App Development
IoT
AI Development
IT Services
DevOps Consulting
eCommerce Development
Cybersecurity
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Helping Business Crush Their Technology Challenges.
We are a full service technology company providing customized solutions for cloud telephones, voice over IP (VoIP), managed IT services, video conferencing, cyber security, data backup, security cameras, access control, fiber internet services, and more...
Location
Slidell, Louisiana
Number of Employees
50 - 99
Average Hourly Rate
$150/hr
Minimal Budget
$1,000 - $10,000
In-Telecom Services
IT Services
Cybersecurity
Managed Services
Cloud Consulting
IT Compliance Solution
ECM Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Great American RV
LSU
Raising Cane's River Center
Gerry Lane Enterprises
Happy Daze RV
APTIM
Meco
Retif Oil & Fuel
Access Health
St. Tammany Parish Government
Data sourced from the agency's DesignRush profile
In-Telecom Reviews & Testimonials
Gene Bell
Review from Google
5.0★
Gene Bell's Review Sourced from Google
I appreciate how quickly the team assigned a tech and responded to our outage. Jordan was able to help identify our sync issue and restore our contact center inbound/outbound calls across our SIP trunks.
Destiny Roberts
Review from Google
5.0★
Destiny Roberts's Review Sourced from Google
Brennen is so thorough and diligent when it comes to any requests made, no matter how big or small. His response time and communication is more than one could expect. He truly makes our days go by smoothly no matter what issues come about. We are greatly appreciative and thankful to have him working with our company. :)
K D
Review from Google
5.0★
K D's Review Sourced from Google
Anthony is an outstanding IT technician whose dedication and expertise consistently exceed expectations. His willingness and readiness to assist at any moment are truly commendable. Anthony possesses a deep well of technical knowledge and intelligent problem-solving skills that make him a go-to resource for any IT challenge. Beyond his technical abilities, his friendly and approachable demeanor makes every interaction a positive experience—an invaluable trait when working with customers. Anthony is a true asset to any team." Thank you Anthony!!
Reviews verified by DesignRush and sourced from the agency's profile
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Regula is a global developer of forensic devices and identity verification solutions with 30+ years of experience in forensic research and the largest library of document templates in the world. We create breakthrough technologies in document and biometric verification...
Location
Reston, Virginia
Number of Employees
250 - 499
Regula Services
AI Development
IT Services
Cybersecurity
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Inverted Software is an enterprise software development and publishing boutique firm.
Optimizing, managing and securing mission-critical IT services for the enterprise, we work closely with our customers to provide software solutions in a wide area of industries...
Location
Las Vegas, Nevada
Number of Employees
100 - 249
Portfolios Count
1 Project Listed
Inverted Software Services
Web Design
eCommerce Development
Web Development
Mobile App Development
Software Development
Software Testing
Big Data Analytics
AI Development
Cloud Consulting
Cybersecurity
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
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: