In today’s world, cybersecurity isn’t just an IT issue – it’s a critical part of running any organization. With the growing number of cyberattacks, data breaches, and compliance requirements, many businesses are turning to cybersecurity consulting companies for help. These firms offer expertise in areas like risk assessment, incident response, cloud security, and regulatory compliance.
In the U.S., there’s a wide range of cybersecurity consultancies, from large global firms to specialized boutique agencies. Each offers different strengths depending on your industry, size, and security needs. Whether you’re a startup building your security from the ground up or an enterprise managing complex digital infrastructure, working with the right consultant can make all the difference. In this article, we’ll explore the top cybersecurity consulting companies in the USA and highlight key factors to consider when selecting such a firm.
1. A-Listware
A-Listware provides IT consulting and software engineering services with a strong emphasis on cybersecurity, targeting the U.S. market. The company collaborates closely with clients in finance, telecommunications, and technology – sectors where security is paramount. Its model centers on building dedicated engineering teams that integrate seamlessly with client operations, embedding cybersecurity practices into every phase of software development and system design.
A-Listware operates as an embedded partner, identifying vulnerabilities early, implementing protection measures, and supporting long-term risk management. Cybersecurity consulting is not a standalone offering but a core component of how A-Listware builds and maintains secure systems. By working alongside client teams, the company ensures compliance requirements and data protection are integrated into technical decisions from the outset, enabling clients to strengthen their security posture while innovating in complex, sensitive digital environments.
Key Highlights:
- Works with clients across Europe and the U.S.
- Focuses on dedicated software engineering teams
- Provides support across full development lifecycles
- Includes cybersecurity practices within engineering processes
Services:
- Software development consulting
- Embedded team outsourcing
- System and architecture design
- Cybersecurity integration in software projects
- IT team extension for long-term cooperation
Contact and Social Media Information:
- Website: a-listware.com
- Email: info@a-listware.com
- Facebook: www.facebook.com/alistware
- LinkedIn: www.linkedin.com/company/a-listware/mycompany
- Address: North Bergen, NJ 07047, USA
- Phone Number: +1 (888) 337 93 73
2. Deloitte
Deloitte is a U.S.-based professional services firm that offers cybersecurity consulting services through its Cyber & Strategic Risk practice. Operating across various industries, Deloitte assists organizations in identifying, managing, and mitigating cyber risks. Their services encompass areas such as cyber strategy, digital trust, enterprise security, and incident response. Deloitte’s approach integrates cybersecurity considerations into broader business strategies, aiming to enhance resilience and support digital transformation efforts.
In the realm of cybersecurity consulting, Deloitte provides services including cyber risk assessments, threat modeling, and security architecture reviews. They also offer solutions for cloud and DevSecOps security assessments, as well as managed detection and response services. Deloitte’s cybersecurity consulting services are designed to address the evolving threat landscape and assist organizations in strengthening their security posture.
Key Highlights:
- Offers cybersecurity consulting services across various industries
- Focuses on integrating cybersecurity into broader business strategies
- Provides services such as cyber risk assessments and incident response
Services
- Cyber risk assessments
- Threat modeling and security architecture reviews
- Cloud and DevSecOps security assessments
- Managed detection and response services
- Digital trust and privacy solutions
- Enterprise security consulting
Contact and Social Media Information:
- Website: www.deloitte.com
- Address: 695 Town Center Dr. Suite 1000, Costa Mesa, CA, 92626, USA
Phone: +1 714 436 7100 - Facebook: www.facebook.com/deloitte
- LinkedIn: www.linkedin.com/company/deloitte
- Twitter: x.com/deloitte
3. CrowdStrike
CrowdStrike is a U.S.-based cybersecurity company that provides consulting and technology solutions focused on threat intelligence, incident response, and enterprise security operations. Headquartered in Austin, Texas, CrowdStrike offers cybersecurity consulting services in the United States through its Falcon platform and a suite of professional services. These services are built to support organizations facing active cyber threats, needing forensic analysis, or requiring ongoing strategic support in hardening their infrastructure.
Within its consulting operations, CrowdStrike supports businesses with incident response investigations, cloud environment security reviews, compromise assessments, and technical advisory services. The company also offers proactive services such as tabletop exercises, red teaming, and security maturity assessments. Its consulting team works with clients across sectors including healthcare, finance, government, and critical infrastructure, emphasizing preparedness and recovery strategies in cybersecurity management.
Key Highlights:
- Publicly listed cybersecurity company
- Offers both software and consulting services
- Active across government and private sectors
- Provides global threat intelligence and response support
Services:
- Cybersecurity incident response consulting
- Compromise and breach assessments
- Cloud security posture reviews
- Security strategy and roadmap development
- Threat hunting and managed detection support
- Red team exercises and adversary simulation
Contact and Social Media Information:
- Website: www.crowdstrike.com
- E-mail: info@crowdstrike.com
- Twitter: x.com/CrowdStrike
- LinkedIn: www.linkedin.com/company/crowdstrike
- Instagram: www.instagram.com/crowdstrike
- Phone: +1-888-512-8906
4. Trustwave
Trustwave is a cybersecurity consulting company in the USA that provides a range of security services focused on helping organizations manage and reduce cyber risks. The company specializes in areas such as threat detection and response, vulnerability management, and compliance solutions. Trustwave’s services include managed security, incident response, and security testing, aiming to provide continuous protection through a combination of technology and expert support.
As part of its cybersecurity consulting offerings, Trustwave delivers services including penetration testing, risk assessments, and cloud security solutions. The company also operates a Security Operations Center (SOC) to monitor threats and provide rapid response to incidents. Trustwave’s approach emphasizes visibility into cyber threats and practical strategies to strengthen defenses aligned with regulatory requirements and evolving attack techniques.
Key Highlights:
- Offers managed security services and incident response
- Provides vulnerability management and penetration testing
- Operates a Security Operations Center (SOC) for continuous monitoring
Services:
- Managed detection and response
- Penetration testing and vulnerability assessments
- Incident response and forensic analysis
- Compliance and risk management consulting
- Cloud security and application security services
Contact and Social Media Information:
- Website: www.trustwave.com
- E-mail: press@trustwave.com
- Twitter: x.com/Trustwave
- LinkedIn: www.linkedin.com/company/trustwave
- Address: Worldwide Headquarters 70 W. Madison St. Suite 600, Chicago IL 60602
- Phone: +1 (855) 438-4305
5. NCC Group
NCC Group is a cybersecurity consulting company operating in the USA and internationally. The company provides security advisory and technical services designed to help organizations identify, manage, and mitigate cyber risks. With a focus on digital resilience, NCC Group works across multiple sectors, including finance, healthcare, and technology, delivering consulting support that addresses both offensive and defensive security needs.
In the U.S. market, NCC Group’s cybersecurity consulting services include risk assessments, threat modeling, red teaming, and incident response planning. The company also offers security testing for infrastructure, applications, and cloud environments. Its consultants support both compliance-driven initiatives and complex technical challenges, helping organizations improve their overall security posture in an evolving threat landscape.
Key Highlights:
- Provides both advisory and technical cybersecurity services
- Works with sectors including healthcare, finance, and tech
- Focuses on digital resilience and risk management
- Offers offensive security services like red teaming
Services:
- Cybersecurity consulting and risk assessment
- Threat modeling and security architecture review
- Red teaming and penetration testing
- Application and infrastructure security testing
- Incident response planning and readiness exercises
- Cloud and DevSecOps security assessment
Contact and Social Media Information:
- Website: www.nccgroup.com
- E-mail: cirt@nccgroup.com
- Twitter: x.com/NCCGroupplc
- LinkedIn: www.linkedin.com/company/ncc-group
- Address: 11 E Adams St Suite 400 Chicago, IL 60603
- Phone: +1 (800) 813 3523
6. EY (Ernst & Young)
EY is one of the cybersecurity consulting companies in the USA that offers a broad range of services aimed at helping organizations address cybersecurity risks and compliance requirements. Their cybersecurity practice includes strategy development, risk management, and security transformation designed to protect digital assets and support business resilience. EY integrates technology, data analytics, and industry knowledge to identify threats and develop comprehensive defense strategies.
Among its cybersecurity consulting services, EY provides cyber risk assessments, security architecture design, incident response planning, and compliance support with standards such as GDPR and CCPA. The company also focuses on emerging areas like cloud security and identity management, aiming to enhance both preventive and detective controls across enterprise environments.
Key Highlights:
- Global presence
- Emphasis on cybersecurity risk management and transformation
- Expertise in regulatory compliance and data privacy
- Combines technology and analytics for threat detection
Services:
- Cyber risk assessments and strategy
- Security architecture and technology implementation
- Incident response and crisis management
- Regulatory compliance and privacy consulting
- Cloud security and identity management solutions
Contact and Social Media Information:
- Website: www.ey.com
- Address: Boca Center, Tower I, 5200 Town Center Circle, Suite 601, Boca Raton 33486,USA
- Facebook: www.facebook.com/EY
- Twitter: x.com/EYnews
7. GuidePoint Security
GuidePoint Security is a cybersecurity consulting company in the USA specializing in providing tailored security solutions to organizations across various industries. Their services focus on identifying vulnerabilities, managing risks, and implementing comprehensive security programs to protect critical assets. GuidePoint Security supports clients through assessments, security architecture design, and ongoing security operations, emphasizing practical approaches aligned with business objectives.
The company offers a broad range of cybersecurity consulting services, including penetration testing, compliance assessments, and incident response. They also provide managed security services to help organizations maintain continuous protection and quickly address threats. GuidePoint Security works with frameworks such as NIST, HIPAA, and PCI DSS to assist clients in meeting regulatory requirements and enhancing overall security posture.
Key Highlights:
- Focus on risk management and vulnerability assessment
- Expertise in compliance with industry regulations
- Offers managed security services alongside consulting
- Supports a wide range of industries with customized solutions
Services:
- Penetration testing and vulnerability assessments
- Security program development and risk management
- Incident response planning and support
- Compliance consulting for frameworks like NIST, HIPAA, PCI DSS
- Managed security services
Contact and Social Media Information:
- Website: www.guidepointsecurity.com
- Facebook: www.facebook.com/GuidePointSec
- Twitter: x.com/GuidePointSec
- LinkedIn: www.linkedin.com/company/guidepointsec
- Address: 2201 Cooperative Way, Suite 225 Herndon, VA 20171
- Phone: (877) 889-0132
8. Network Intelligence
Network Intelligence is a cybersecurity consulting company in the USA that focuses on providing advanced network threat detection and analysis solutions. The company emphasizes the use of artificial intelligence and machine learning to monitor network activity, detect anomalies, and respond to cyber threats in real time. Their approach integrates automation to enhance security operations and improve threat visibility for organizations.
The company’s services include continuous network monitoring, threat hunting, and security analytics designed to help organizations proactively identify and mitigate risks. Network Intelligence also offers incident response support and forensic analysis to address security breaches and minimize impact. Their solutions aim to provide a comprehensive view of network security, enabling clients to make informed decisions about protecting their digital infrastructure.
Key Highlights:
- Utilizes AI and machine learning for threat detection
- Focus on real-time network monitoring and anomaly detection
- Provides incident response and forensic analysis
- Offers solutions to enhance security operations and visibility
Services:
- Network threat detection and monitoring
- Threat hunting and behavioral analytics
- Incident response planning and execution
- Security forensics and breach analysis
- Automation of security operations
Contact and Social Media Information:
- Website: www.networkintelligence.ai
- E-mail: contact@networkintelligence.ai
- Facebook: www.facebook.com/NIIConsulting
- Twitter: x.com/niiconsulting
- LinkedIn: www.linkedin.com/company/nii-consulting
- Instagram: www.instagram.com/networkintelligence.ai
- Address: 6860 N Dallas Pkwy, Suite 200, Plano TX, 75024, United States
- Phone: +1 (408) 664-9892
9. Mandiant
Mandiant is a cybersecurity consulting company based in the United States. The company focuses on incident response, threat intelligence, and cyber defense operations. Mandiant is known for its work with government agencies, global enterprises, and critical infrastructure organizations. The company delivers cybersecurity consulting services to help organizations prepare for, respond to, and recover from advanced cyber threats.
Mandiant’s consulting team provides expertise in areas such as threat detection, response readiness, security validation, and post-incident recovery. Its services include tailored assessments, simulations, and technical investigations aimed at improving resilience and minimizing operational impact. As part of Google Cloud, Mandiant integrates its consulting capabilities with cloud-native threat intelligence and analytics tools, supporting clients with complex security environments.
Key Highlights:
- Acquired by Google Cloud in 2022
- Focused on threat intelligence and incident response
- Supports government, corporate, and critical infrastructure sectors
- Known for technical investigations and forensic expertise
Services:
- Cybersecurity incident response consulting
- Threat intelligence operations
- Security effectiveness validation
- Attack simulation and red teaming
- Digital forensics and threat hunting
- Strategic risk and readiness assessments
Contact and Social Media Information:
- Website: www.mandiant.com
- E-mail: Google-cloud-security-pr@google.com
- Facebook: www.facebook.com/Mandiant
- Twitter: x.com/Mandiant
- LinkedIn: www.linkedin.com/company/mandiant
- Phone: +1 87 766 61 502
10. Vumetric
Vumetric is an American cybersecurity consulting company that specializes in penetration testing, vulnerability assessments, and compliance audits. The company focuses on identifying security weaknesses across various IT environments, including web applications, networks, and cloud infrastructures. Their approach involves thorough testing methodologies aligned with industry standards to help organizations understand and manage their cybersecurity risks.
In addition to vulnerability management, Vumetric provides services related to regulatory compliance such as GDPR, HIPAA, and PCI DSS, assisting clients in meeting legal and industry-specific requirements. The company also offers security awareness training and risk assessment services to support the development of a comprehensive cybersecurity strategy. These offerings enable organizations to proactively strengthen their defenses and reduce the likelihood of cyber incidents.
Key Highlights:
- Specializes in penetration testing and vulnerability assessments
- Provides regulatory compliance audits for standards like GDPR and PCI DSS
- Offers security awareness training programs
- Focuses on multi-environment security testing (networks, web apps, cloud)
Services:
- Penetration testing (web, network, cloud)
- Vulnerability assessments and management
- Compliance audits (GDPR, HIPAA, PCI DSS)
- Security awareness training
- Risk assessments and consulting
Contact and Social Media Information:
- Website: www.vumetric.com
- Facebook: www.facebook.com/vumetric
- Twitter: x.com/vumetric
- LinkedIn: www.linkedin.com/company/vumetric
- Address: 2251 S Decatur Blvd, Las Vegas, NV 89102, United States
- Phone: +1-877-805-7475
11. KPMG
KPMG is one of the cybersecurity consulting companies USA offering a broad range of services designed to help organizations identify and mitigate cyber risks. Their cybersecurity practice focuses on areas such as threat intelligence, cyber risk management, and incident response. KPMG assists clients in understanding the evolving cyber threat landscape and building frameworks to protect critical assets. Their approach integrates both technology and governance to ensure comprehensive security controls.
The company also provides advisory services related to regulatory compliance and data privacy, helping organizations meet requirements such as GDPR and CCPA. Cybersecurity assessments and penetration testing are among their offerings to evaluate vulnerabilities and recommend remediation strategies. Through these services, KPMG supports businesses in enhancing their resilience against cyber threats while aligning security efforts with overall business objectives.
Key Highlights:
- Focus on cyber risk management and threat intelligence
- Provides incident response and recovery planning
- Advises on regulatory compliance and data privacy
- Conducts cybersecurity assessments and penetration testing
Services:
- Cyber risk assessment and management
- Threat intelligence and monitoring
- Incident response and digital forensics
- Regulatory compliance consulting (GDPR, CCPA, etc.)
- Penetration testing and vulnerability assessments
Contact and Social Media Information:
- Website: kpmg.com
- Address: Two Financial Center 60 South Street Boston, MA 02111
- Phone: +1 617 988 1000
- Facebook: www.facebook.com/KPMG
- Twitter: x.com/kpmg
- LinkedIn: www.linkedin.com/company/kpmg-us
Conclusion
In today’s digital landscape, cybersecurity consulting companies in the USA play a critical role in helping organizations protect their data, systems, and operations from growing cyber threats. These firms offer a range of services – from risk assessments and threat detection to incident response and regulatory compliance – that support businesses in understanding and managing their security challenges. Choosing the right cybersecurity partner involves looking for a company that not only has technical expertise but also understands the specific risks and requirements of the industry they serve.
As cyberattacks continue to evolve, the need for ongoing support and proactive strategies becomes more important than ever. Engaging with cybersecurity consulting companies can help organizations build stronger defenses, respond effectively to incidents, and maintain compliance with relevant laws and standards, ultimately contributing to a safer and more resilient business environment.
