List of Top Cybersecurity Companies
Cybersecurity Consulting Companies

Updated: September 1, 2022.
2022 List of Top Cybersecurity Testing Companies
2022 Top Cybersecurity Companies – Testing
In reality, the list of cybersecurity testing companies that you should seek out for your upcoming Penetration Testing Project is not that large due to the fact that talented experienced Sr. Level Engineering is hard to find and most of the vulnerability variety companies employ junior techs with some knowledge but unfortunately do not have the skills to truly perform a manual controlled penetration test (MCPT).
Let’s jump right into the List of Top Cybersecurity Companies in U.S.
2022 List of the Top Cybersecurity Companies – Cybersecurity Testing Companies
Note: If you feel your project requires a penetration testing company located outside of United States, you can view our 2020 list of global penetration testing companies here.
1. Redbot Security
Contact: https://redbotsecurity.com/contact
Tagline: Simulating Real World Attacks Before they Become Real™
Overview: Over the last few years, Redbot Security has become one of the most popular Penetration Testing Companies. Redbot Security is a Boutique, smaller firm that identifies, evaluates, exploits, reports (proof of concept) and provides best practice remediation steps for Real-World vulnerabilities found within applications, systems and networks. Redbot Security is unique as part of their business model is that the company deploys Sr. Level Engineers that have the ability to fully discuss penetration testing exploits and proper remediation steps, specific to the client network and or application/devices. Many of Redbot Security’s Sr. Staff have dynamic backgrounds with experience as sys admins, app development and coding. Redbot Security’s unique ability to scope small to very large projects have enabled the company to service a wide range of customers ranging from SaaS companies to industrial critical infrastructure (water, power utilities).
- Location: 600 17th Street Denver, CO 80202
- Specialties: Application Penetration Testing, IT Network Penetration Testing, OT (ICS SCADA) Testing, Cloud Security Reviews
2. Coalfire
Contact: https://coalfire.com
Tagline: Working at the cutting edge of technology to solve the toughest cybersecurity challenges.
Overview: Coalfire is the cybersecurity advisor that helps private and public sector organizations avert threats, close gaps, and effectively manage risk. By providing independent and tailored advice, assessments, technical testing, and cyber engineering services, we help clients develop scalable programs that improve their security posture, achieve their business objectives, and fuel their continued success. Coalfire has been a cybersecurity thought leader for more than 20 years and has offices throughout the United States and Europe. For more information, visit.
- Location: Westminster, CO
- Specialties: Cloud, Managed Services, IT Audits and Risk Assessments
3. Rapid 7
Contact: https://rapid7.com
Tagline: You protect our future, we’ve got your back
Overview: Organizations around the globe rely on Rapid7 technology, services, and research to securely advance. The visibility, analytics, and automation delivered through our Insight cloud simplifies the complex and helps security teams reduce vulnerabilities, monitor for malicious behavior, investigate and shut down attacks, and automate routine tasks.
- Location: Boston, Massachusetts
- Specialties: Information Security, Vulnerability Management, Penetration Testing, Compromised User Detection, Mobile Risk Management, Enterprise Control Monitoring, Strategic Services, Security Programs, Application Testing, Automation, Analytics, and Intrusion Detection
4. Core Security
Contact: https://coresecurity.com
Tagline: Leading-edge cyber threat prevention and identity governance solutions to help prevent, detect, test, and monitor risk.
Overview: Core Security, a HelpSystems Company, delivers market-leading, threat-aware, vulnerability, identity and access management solutions that provide the actionable intelligence and context needed to manage security risks across the enterprise.
- Location: Alpharetta, Georgia
- Specialties: Penetration testing, security intelligence, software solutions, vulnerability research, threat expertise, threat modeling, identity governance, privileged access management, and identity and access management.
5. HackerOne
Contact: https://hackerone.com
Tagline: Empowering the world to build a safer internet
Overview: HackerOne gives organizations access to the largest community of hackers on the planet. Armed with the most robust database of vulnerability trends and industry benchmarks, the hacker community mitigates cyber risk by searching, finding, and safely reporting real-world security weaknesses for organizations across all industries and attack surfaces. Customers include The U.S. Department of Defense, Dropbox, General Motors, GitHub, Goldman Sachs, Google, Hyatt, Lufthansa, Microsoft, MINDEF Singapore, Nintendo, PayPal, Qualcomm, Slack, Starbucks, Twitter, and Verizon Media.
- Location: San Francisco, California
- Specialties: Hackerone Platform is the industry standard for hacker-powered security. Partnering with the global hacker community to surface the most relevant security issues before they can be exploited by criminals.
6. Secureworks
Contact: https://secureworks.com
Tagline: Cybersecurity by security experts for security experts. We are in the fight with you!
Overview: We protect organizations by providing battle-tested, best-in-class cybersecurity solutions that reduce risks, improve security operations, and accelerate ROI for Security and IT teams. In short, we’re here to secure human progress.
- Location: Atlanta, GA
- Specialties: We value new ideas and breakthroughs and we listen with curiosity. We do not cling to practices because they are comfortable. We continually pursue both incremental improvements and industry breakthroughs to better secure our clients and provide a better work environment for our team members.
7. NetSpi
Contact: https://netspi.com
Tagline: Industry leaders trust NetSPI – The future of pentesting now
Overview: NetSPI is a penetration testing company that is transforming the cyber security testing industry with tech-enabled services and prevention-based cyber security techniques. Global enterprises choose NetSPI’s penetration testing service to test their applications, networks, and cloud infrastructure at scale and manage their attack surfaces.
- Headquarters: Minneapolis, USA
8. Rhino Security
Contact: https://rhinosecuritylabs.com/
Tagline: none
Overview: Rhino Security Labs is a penetration testing company that incorporates best security research, leading security engineers and some proprietary technologies to perform penetration testing.
Location: Washington, USA
9. Mandiant (Formerly of FireEye)
Contact: https://www.fireeye.com/
Tagline: We protect our customers through unmatched detection, protection, & response technologies
Overview: Mandiant is a publicly traded American cybersecurity firm. It rose to prominence in February 2013 when it released a report directly implicating China in cyber espionage. On December 30, 2013, Mandiant was acquired by FireEye in a stock and cash deal worth in excess of $1 billion. In June 2021, after 7 years of stagnant growth under parent company FireEye, Mandiant sold the FireEye product line, name, and roughly 1300 employees to Symphony Technology Group for $1.2 billion. The remaining organization will focus on Mandiant Advantage and services.
- Location: California, USA
10.Veracode
Contact: https://www.veracode.com/
Tagline: You change the world, we’ll secure it.
Overview: Veracode offers application security solutions and services with scalability, development integration and ensuring security policies. Veracode performs vulnerability assessment logically.
- Location: Massachusetts, USA
Top Cybersecurity Companies - Penetration Testing Firms (cost comparison)
On the average a manual penetration test will take between 1-3 weeks and most companies charge by the time-box test.
- Penetration Testing Overview – NIST
- Penetration Testing vs Vulnerability Scanning
- How to select a Penetration Testing Company
- Tips on how to secure your network (vulnerabilities that Penetration Testing Companies find)
The 2022 List of ‘Top Cybersecurity Testing Companies’ in the US is based on 5 key factors
- Level Engineers with 20 plus years of experience
- Custom Scoping
- Client Engagement
- True Penetration Testing
- Service Capabilities
Different Types of Cybersecurity Tests
- External or Internal Network Penetration Testing
- Web Application Penetration Testing
- Mobile Application Penetration Testing
- ICS/ SCADA Penetration Testing
- IoT and Internet-Aware Device Testing
- Social Engineering/ Client Awareness Penetration Testing
- Red Team Attack Simulation
- Wireless Network Penetration Testing
- Black-Box | Grey-Box | White-Box

Summary
Filtering out all of the noise you’ll see that its fairly easy to find the top cybersecurity company for your project. After careful review, you will soon discover that there are not many top-level expert cybersecurity testing companies within the cybersecurity community. It is a small group of top sr. level engineers that have the ability to deploy a true penetration test; identify, scope, exploit and provide the correct remediation steps that are necessary to safeguard your particular network, application and devices.
Important Penetration Testing Checklist when searching for the Top Cybersecurity Testing Company for your Project:
- Are the engineers assigned to your project Senior Level or Junior Level
- What is the time-box for the testing period?
- Is your budget in place?
- What are your goals of the test? (e.g. escalation of privileges, proof of defacement, proof of critical system access
- Compliance requirements for Penetration Testing
- Report Audience ( Executive level reporting, technical reporting, Customer facing redacted Pen-test report)
- Specialty Penetration testing (ICS/SCADA, IoT)
- Retesting requirements ( are retests built into service/ statement of work)
- Is the Penetration Testing Company Full-Service? (can they help with remediation and offer additional cybersecurity services)
- Recurring Penetration Test (is the penetration testing company a one-off or a potential ongoing security partner)
Global Cybersecurity Testing Market: Competitive Players who are Top Cybersecurity Companies
Markets and Markets Research Top Key Players
Key companies Cyber Security Consulting Services revenues in global market, 2017-2022
Key players include: IBM, Secureworks NetSPI, Mandiant, TataCyber, Symantec, CNS Group, Optiv, Accenture, Assuria, Core Security, Proficio, Cronus Cyber, XM Cyber, Picus Security, Kroll, CrowdStrike, Rapid7, Redbot Security, HackerOne, Coalfire, Cisco.
via https://www.htfmarketreport.com/reports/4082873-cyber-security-consulting-services-market
Why is Cybersecurity Testing Important:
Penetration Testing Defined:
The definition of a penetration test, or pen-test , is a controlled exercise that simulates a malicious hacking attack on a computer system, network, application or device and is performed to help evaluate the cybersecurity controls that are in place, that defend the system, device or application. Many time due to a variety of industry service offerings, companies confuse a penetration test with a vulnerability assessment or vulnerability scan . A penetration testing company will start by evaluating the ‘scope ‘of the project, (known as what devices, network or application is part of the test) and then will propose a time-box for the testing engagement. Once scope is finalized the Penetration Testing Company will begin testing, notifying client of vulnerabilities that can be exploited.
The National Cyber Security Center, states that penetration testing is defined as “A method for gaining assurance in the security of an IT system by attempting to breach some or all of that system’s security, using the same tools and techniques as an adversary might.”
The Best Penetration Testing Companies will identify a target system and will also identify a company’s particular goals. If you are using an experienced penetration testing engineer they will perform enumeration of that system or systems and then will attempt to achieve the penetration testing goals which may or may not include exploiting the vulnerabilities and traversing further into your critical data and systems. Most penetration tests start from a black-box perspective (provides no information other than targeted system, ie web app IP address) and then move to a gray-box penetration test which would be a combination of both black-box and white-box. A white box penetration test (which provides credentials and network information) is typically used for insider threat assessments. According to NIST a penetration test is a invaluable tool that can help determine if a system is vulnerable to attack by bad actors (hackers, criminals, terrorists etc)
The Best Penetration Testing Companies will identify the potential impact of vulnerabilities to the organization and recommends proper remediation efforts to fix the vulnerabilities to ultimate reduce risk. However it is important to note, a Penetration Testing Company without proper knowledge, will typically run a vulnerability scan and will deliver a report that contains too many false positives, many times leaving a company confused on cybersecurity priorities. A true manual penetration performed by a ‘top rated penetration testing company’ should only list verified vulnerabilities that can potentially be chained together for real world exploits. A top ranked penetration testing company should show proof of concept for each vulnerability.
Penetration Testing
Penetration testing is security testing in which assessors mimic real-world attacks to identify methods for circumventing the security features of an application, system, or network. It often involves launching real attacks on real systems and data that use tools and techniques commonly used by attackers. Most penetration tests involve looking for combinations of vulnerabilities on one or more systems that can be used to gain more access than could be achieved through a single vulnerability. Penetration testing can also be useful for determining:
- How well the system tolerates real world-style attack patterns
- The likely level of sophistication an attacker needs to successfully compromise the system
- Additional countermeasures that could mitigate threats against the system
- Defenders’ ability to detect attacks and respond appropriately.
Penetration testing can be invaluable, but it is labor-intensive and requires great expertise to minimize the risk to targeted systems. Systems may be damaged or otherwise rendered inoperable during the course of penetration testing, even though the organization benefits in knowing how a system could be rendered
inoperable by an intruder.
Although experienced penetration testers can mitigate this risk, it can never be fully eliminated. Penetration testing should be performed only after careful consideration, notification, and planning.
Penetration testing often includes non-technical methods of attack. For example, a penetration tester could breach physical security controls and procedures to connect to a network, steal equipment, capture sensitive information (possibly by installing keylogging devices), or disrupt communications.
Caution should be exercised when performing physical security testing—security guards should be made aware of how to verify the validity of tester activity, such as via a point of contact or documentation. Another nontechnical means of attack is the use of social engineering, such as posing as a help desk agent and calling to request a user’s passwords, or calling the help desk posing as a user and asking for a password to be reset.
Penetration Testing Planning
In the planning phase, rules are identified, management approval is finalized and documented, and testing goals are set. The planning phase sets the groundwork for a successful penetration test. No actual testing occurs in this phase.
The discovery phase of penetration testing includes two parts. The first part is the start of actual testing, and covers information gathering and scanning. Network port and service identification, is conducted to identify potential targets. In addition to port and service identification, other techniques are used to gather information on the targeted network:
- Host name and IP address information can be gathered through many methods, including DNS
interrogation, InterNIC (WHOIS) queries, and network sniffing (generally only during internal
tests) - Employee names and contact information can be obtained by searching the organization’s Web
servers or directory servers - System information, such as names and shares can be found through methods such as
NetBIOS enumeration (generally only during internal tests) and Network Information System
(NIS) (generally only during internal tests) - Application and service information, such as version numbers, can be recorded through banner
grabbing.
In some cases, techniques such as dumpster diving and physical walkthroughs of facilities may be used to collect additional information on the targeted network, and may also uncover additional information to be used during the penetration tests, such as passwords written on paper. The second part of the discovery phase is vulnerability analysis, which involves comparing the services, applications, and operating systems of scanned hosts against vulnerability databases (a process that is automatic for vulnerability scanners) and the testers’ own knowledge of vulnerabilities. Human testers can use their own databases—or public databases such as the National Vulnerability Database (NVD) —to identify vulnerabilities manually.
Executing an attack
Executing an attack is at the heart of any penetration test. The process of verifying previously identified potential vulnerabilities by attempting to exploit them. If an attack is successful, the vulnerability is verified and safeguards are identified to mitigate the associated security exposure. In many cases, exploits that are executed do not grant the maximum level of potential access to an attacker. They may instead result in the testers learning more about the targeted network and its potential vulnerabilities, or induce a change in the state of the targeted network’s security. Some exploits enable testers to escalate their privileges on the system or network to gain access to additional resources. If this occurs, additional analysis and testing are required to determine the true level of risk for the network, such as identifying the types of information that can be gleaned, changed, or removed from the system. In the event an attack on a specific vulnerability proves impossible, the tester should attempt to exploit another discovered vulnerability. If testers are able to exploit a vulnerability, they can install more tools on the target system or network to facilitate the testing process. These tools are used to gain access to additional systems or resources on the network, and obtain access to information about the network or organization. Testing and analysis on multiple systems should be conducted during a penetration test to determine the level of access an adversary could gain.
View Full NIST Technical guide for additional information on Penetration Testing.
NIST SP 800-30 provides guidance on conducting risk assessments and updates [79].
NIST SP 800-39 provides guidance on risk management at all organizational levels [20].
NIST SP 800-40 provides guidance on handling security patches [40].
NIST SP 800-115 provides guidance on network security testing [41].
NIST SP 800-60 provides guidance on determining security categories for information types [25].
NIST SP 800-100 provides guidance on information security governance and planning [27].
Top Rated Cybersecurity Testing Companies

2022 List of Top Cybersecurity Testing Companies
(10 Most Popular Penetration Testing Companies)
Penetration Testing Company Reviews
Great company to work with. I’m glad I picked Redbot Security for my security audits as everyone there are talented and very easy to work with. They deliver on their promises and work hard towards making you aware of any potential threats or issues in your IT infrastructure as well as following up with you to ensure that any issues have been corrected. I would recommend this company to anyone who’s looking to improve their network and IT infrastructure with best practices.
RedBot Security is extremely professional and detail oriented and extremely easy to work with. I would rate them A++ or a 5. The report provided was detailed and written to easily turn it into action items to correct.
I made several calls, shopped around and from the first email no one compares to Redbot Security. My goal was to protect our users both patient and physician from any open doors. They delivered way within timeline and exceeded all of my expectations. Do not waste your time calling anyone else. They’re simply the best!
Highly Recommended~!! the team at Redbot was efficient, friendly, ultra reliable and a great pleasure to work with. We had a demanding customer timeline for our requirement and Redbot did exactly what was needed for our testing and exceeded at every instance to help us meet our goal. Super Redbot team and thank you all very much again!
It was a pleasure to work with Redbot Security to perform an external penetration test for us (GYANT.com). Everyone I’ve interacted with is very professional and responsive. The penetration test was thorough and well-documented. I also appreciated the prompt re-test.
Penetration Testing Company
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