Find a Pentest Company in New Hampshire
There are 20 penetration testing companies in New Hampshire. 80% are small firms (50 or fewer employees) and 20% are larger organizations.
Topgallant Partners
Topgallant Partners is a cybersecurity-focused IT services and consulting firm based in Londonderry, New Hampshire, with 2 employees and $21.9M annual revenue. Founded in 2003, they specialize in penetration testing, vulnerability assessments, security audits, and compliance solutions, aiming to enhance network security for New England businesses. Key services include security assessments, policy review, dark web scanning, and risk management, competing with firms like polecatsecuritytesting and netragard.
TRaViS
TRaViS (Seron Security, LLC) is a cybersecurity-focused IT services firm based in Bow, New Hampshire, founded in 2022; with 3 employees and 100% YoY growth, they specialize in penetration testing, red-team operations, and vulnerability assessments for web, network, and API security, serving clients with elite ethical hacking services.
Amplivity
IT services and consulting company specializing in managed IT, cybersecurity, disaster recovery, and penetration testing; provides automated penetration testing services as of March 2025; 2 employees; headquartered in Stratham, New Hampshire, USA.
Reboot IT
Reboot IT is a private IT and cybersecurity services provider based in Lee, New Hampshire, with 8 employees and 100% YoY growth since 2004. They deliver managed IT, cloud, help desk, email migration, and cybersecurity solutions, including penetration testing services that simulate real-world attacks to identify vulnerabilities and provide actionable insights.
Integrated Cyber Solutions (ICS)
Cybersecurity company specializing in penetration testing, vulnerability management, and managed detection & response; based in Salem, New Hampshire, with 6 employees and a 60% monthly growth rate. Offers expert cybersecurity services for SMBs and SMEs, with a dedicated pen testing page and references to penetration testing services in 2023.
Ebryx LLC
Cybersecurity company specializing in consulting, zero trust, testing, and managed SOC; 32 employees (+44.8% YoY growth); founded 2008; headquartered in Salem, NH; provides penetration testing, red teaming, phishing simulations, and cyber defense training; global rank #6,997,945 with 1,609 monthly visits.
Pulsar Security
Cybersecurity company specializing in network penetration testing, web application testing, and security assessments; 13 employees with -5.9% YoY growth; headquartered in Londonderry, New Hampshire, USA; serves education, hospitality, media, and digital content industries; active in security research and industry events.
Stop wasting time on security questionnaires
ResponseHub uses AI to automate your security questionnaire responses. 100% confidence, save days, unblock deals.
RMON Networks, Inc.
Computer and Network Security company specializing in cybersecurity and IT support; provides penetration testing services including OSINT, vulnerability assessments, web/mobile testing, wireless security, phishing, and physical security testing; 16 employees; $9.6M revenue; founded 2002; Hampstead, NH.
Blue Spruce Technologies
Private computer and network security company based in Durham, New Hampshire, United States; 12 employees; $13.4M annual revenue; founded 2004; provides penetration testing, security consulting, firewall audits, vulnerability assessments, secure wireless, and security integration services.
White Mountain IT Services
White Mountain IT Services is a private IT security and support company founded in 1985, headquartered in Nashua, New Hampshire, with 11 employees and $13.7M annual revenue. They provide comprehensive IT support, cloud services, and cybersecurity solutions, including penetration testing services as listed on their cybersecurity blog. The company focuses on serving small to medium-sized businesses with enterprise-level solutions at affordable prices.
New England IT Partners, LLC
IT services and consulting company specializing in IT support, cybersecurity, data backup, cloud computing, and penetration testing; 5 employees, $6.4M revenue, founded 2010, headquartered in Bedford, NH, serving NH and MA; offers comprehensive penetration testing including black-box, white-box, code audits, and threat analysis.
Cloud Cat Services LLC
Cybersecurity firm specializing in penetration testing; headquartered in Nashua, NH at 1 Chestnut St; offers security testing and vulnerability assessments.
EbryxTech
Custom software development company based in Salem, NH; offers IT staff augmentation, team and architect as a service, and specialized penetration testing services to fortify system security against cyber threats.
Blue Mantis
Cybersecurity firm specializing in penetration testing services; offers comprehensive pentest solutions including real-world attack simulations with automated, manual, and social techniques; headquartered in Portsmouth, NH, USA; focuses on cloud enablement, digital transformation, and infrastructure modernization.
Advertise on pentest.fyi
You could be here!
Mainstay Technologies
IT services company specializing in cybersecurity assessments and penetration testing; based in Manchester, NH with headquarters at 25 Sundial Ave, Suite 504W; offers security testing using simulated hacking techniques and technical assessments by security professionals.
THE ATOM GROUP
Private software development company founded in 2007; based in Portsmouth, NH, USA; 15 employees (+5.3% YoY growth); $6.5M annual revenue; specializes in software innovation and cybersecurity, including penetration testing with red-team style assessments; active in mobile, web, ecommerce, UX, CMS, security, and compliance sectors; recent partnerships and industry news.
StackAware
StackAware is a private cybersecurity company specializing in managing AI-related cybersecurity, privacy, and compliance risks; founded in 2022 with 3 employees (+33.3% YoY growth), headquartered in Bartlett, New Hampshire, USA. The company provides penetration testing services, including AI risk assessments, red teaming, and application penetration testing, emphasizing proactive security and risk management in AI environments.
Wapack Labs
Cyber intelligence company specializing in proprietary threat intelligence, penetration testing, and security assessments; 3 employees, $3M revenue, founded 2013 in New Boston, NH, USA; focuses on cyber threat intelligence, intrusion analysis, and security operations.
FieldStar It
IT services company based in Portsmouth, New Hampshire, specializing in cybersecurity solutions including penetration testing; offers design, implementation, and monitoring services to safeguard digital enterprises; explicitly provides pen test services and holds CEH certification.
Daystar
Managed IT service provider specializing in cybersecurity, including penetration testing, vulnerability scans, and ethical hacking; headquartered in Newington, NH, with a physical address at 121 Shattuck Way Suite 10, Newington, NH 03801; serving clients nationwide.