Best Penetration Testing Services - Page 16

How Many Penetration Testing Services Products Does G2 Track?

Total Products under this Category: 263

Category Stats (Sep 2026)

  • Average Rating: 4.75/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: ScienceSoft (+1.78%) - Among all products in this category, ScienceSoft recorded the largest rating increase compared to last month

Last updated: September 05, 2026

How Does G2 Rank Penetration Testing Services Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 1,000+ Authentic Reviews
  • 263+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Penetration Testing Services

G2 Grid® for Penetration Testing Services plotting products by satisfaction and market presence

Highlighted products: PlutoSec, CyStack Security Services, ThreatSpike, Vynox Security, Insight Assurance, CyberFortify, Packetlabs, and Vumetric Cybersecurity.

Underlying data: [Grid® JSON](https://www.g2.com/categories/penetration-testing-services/grids.json?focus%5B%5D=plutosec&focus%5B%5D=cystack-security-services&focus%5B%5D=threatspike&focus%5B%5D=vynox-security&focus%5B%5D=insight-assurance&focus%5B%5D=cyberfortify&focus%5B%5D=packetlabs-ltd-packetlabs&focus%5B%5D=vumetric-cybersecurity)

Sencode LTD

Sencode provides security-conscious organisations with a range of IT security solutions and services, including penetration testing and cyber awareness training to help mitigate the growing risks to your corporate infrastructure and promote a culture of Security Beyond Compliance. https://sencode.co.uk/

Who Is the Company Behind Sencode LTD?

  • Seller: Sencode
  • Year Founded: 2019
  • HQ Location: Middlesbrough, GB
  • LinkedIn® Page: www.linkedin.com
    3 employees on LinkedIn®

Sensiba LLP

Sensiba is a Top 75 accounting and consulting firm with teams across North America, APAC, and EMEA. We serve clients at every stage—from fast-growing startups and VC firms to manufacturers and real estate enterprises—helping them solve complex problems, navigate uncertainty, and build a foundation for sustainable success. It’s how we've grown from our Silicon Valley roots nearly 50 years ago into the global firm we are today. We’re innovators redefining what professional services can be. What you'll feel day-to-day is this: relationships are everything. We treat people the way we want to be treated—our clients, our colleagues, and our communities. As a Certified B Corp, we hold the firm to high standards of social and environmental performance and ethical governance. Our mission is to ‘Account for Good’, guided by values that inform our decisions and support our stakeholders.

Average Rating: 4.9/5.0

Total Reviews: 9

Who Is the Company Behind Sensiba LLP?

  • Seller: Sensiba
  • Year Founded: 1977
  • HQ Location: San Ramon, California, United States
  • LinkedIn® Page: www.linkedin.com
    483 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 56% Small, 33% Medium

What Are Recent G2 Reviews of Sensiba LLP?

Siege Cyber

Siege Cyber is an Australian owned and operated cyber security firm focusing on penetration testing and vulnerability assessments. Our goal is to help our customers secure their organisation. Siege Cyber is proud to partner with MSP’s and Resellers within Australia/New Zealand.

Who Is the Company Behind Siege Cyber?

Silent Break Security

Silent Break Security sets the bar for quality, customer service, and professionalism. From compliance to sophisticated adversary simulations to collaborative assessments to custom red team toolkits and training, the approach is customized to best help your organization progress in security maturity. Silent Break Security's expertise, reputation, and quality of service is truly unmatched.

Who Is the Company Behind Silent Break Security?

Silent Sector

We build exceptional cybersecurity programs to protect mid-market and emerging companies, the backbone of our Nation's economy and way of life. Silent Sector protects clients across industries with stringent cybersecurity and compliance requirements. As a cybersecurity services company, our team provides cybersecurity program development, vCISO consulting, risk assessments, and penetration testing services to software companies, healthcare, financial services, manufacturing, defense contractors, educational institutions, and other organizations requiring resilient and compliant cyber risk management programs.

Who Is the Company Behind Silent Sector?

SplxAI

Automated and continuous Red Teaming for Conversational AI. Discover vulnerabilities in your AI apps before an incident happens by simulating domain-specific attack scenarios.

Who Is the Company Behind SplxAI?

  • Seller: SplxAI
  • Year Founded: 2023
  • HQ Location: New York, New York, United States
  • LinkedIn® Page: www.linkedin.com
    28 employees on LinkedIn®

Starlink Nexus LLC

**Starlink Nexus LLC – End-to-End IT & Network Infrastructure Solutions** Starlink Nexus LLC is a premier IT solutions provider delivering innovative, secure, and scalable technology services to businesses worldwide. We specialize in network infrastructure, cybersecurity, cloud platforms, AI automation, and enterprise IT consulting—helping organizations modernize operations and accelerate digital transformation. With deep expertise across enterprise networking and security ecosystems, we design, deploy, and manage high-performance IT environments that drive productivity, resilience, and growth. --- ### **Core Service Portfolio** **🔹 Network Infrastructure & Hardware Solutions** We provide end-to-end network architecture, deployment, and support services, including routing, switching, SD-WAN, and wireless solutions. We also supply enterprise hardware such as Cisco switches, routers, and Fortinet firewalls as a trusted technology partner. **🔹 Cybersecurity & Threat Protection** Our advanced security services safeguard businesses against evolving threats through: * Vulnerability Assessments * Penetration Testing * Firewall Implementation & Hardening * SOC & Threat Monitoring * Compliance & Risk Management **🔹 Cloud & Data Center Solutions** We design scalable cloud environments and hybrid infrastructures that enhance performance, availability, and cost efficiency across AWS, Azure, and private cloud ecosystems. **🔹 AI Development & Automation** We build intelligent AI systems and automation workflows that streamline customer service, operations, and business intelligence—reducing manual workload and improving decision-making. **🔹 Software & Web Development** Custom-built applications, dashboards, and web platforms tailored to your operational needs—ensuring performance, security, and user experience excellence. **🔹 IT Consulting & Managed Services** Strategic IT advisory, infrastructure audits, and managed support services that align technology investments with long-term business objectives. **🔹 Digital Forensics & Investigation Services** We provide forensic analysis, cyber investigation, and incident response services to support legal, corporate, and security requirements. **🔹 IT Support & Operations** 24/7 technical assistance, system monitoring, and proactive maintenance to ensure uninterrupted business operations. --- ### **What Sets Us Apart** * **Fortinet Trusted Partner** with proven firewall and security deployment expertise * Enterprise hardware supply & integration (Cisco, Fortinet, and leading OEMs) * Tailor-made solutions for SMBs to large enterprises * Strong focus on security, scalability, and compliance * Cross-industry delivery experience (Healthcare, Logistics, Oil & Gas, IT, and more) --- ### **Client Impact** Our solutions consistently deliver measurable outcomes. From AI-driven automation improving operational efficiency by up to 40%, to secure network transformations enabling multi-site global connectivity—our work empowers clients to scale with confidence. --- ### **Our Mission** To deliver future-ready IT ecosystems that are secure, intelligent, and performance-driven—helping businesses innovate, grow, and lead in a digitally connected world. --- **Partner with Starlink Nexus LLC** to build a resilient, secure, and scalable technology foundation for your organization’s success.

Who Is the Company Behind Starlink Nexus LLC?

Stratejm

Stratejm is a next-generation managed security services provider, driving superior cybersecurity outcomes through our innovative "Security-as-a-Service" model. Leveraging the potential of our cybersecurity mesh architecture, we achieve unprecedented integration of diverse security tools. This approach, fosters exceptional defensive capabilities, enabling enterprises to effectively confront ever-evolving cyber threats. Trusted by organizations across different verticals, including industry leaders in financial services, insurance, oil & energy, financial services, government, education & retail.

Who Is the Company Behind Stratejm?

  • Seller: Stratejm
  • Year Founded: 2013
  • HQ Location: Mississauga, CA
  • LinkedIn® Page: www.linkedin.com
    73 employees on LinkedIn®

Subverted

Subverted is a no-fluff penetration testing agency. Using human expertise to find real vulnerabilities and deliver actionable recommendations for proactive security. Subverted reimagines proactive security through penetration testing that actually works. How We Test: We combine the best of automation with full human expertise. Automated tools handle the groundwork. Our security experts find the vulnerabilities that matter and real-world exploits that scanners miss. What We Test - Applications - Web apps, mobile apps, SaaS platforms, APIs
 - Networks - Perimeter, internal systems, network architecture - Cloud - AWS, Azure, GCP configurations and deployments
 - Custom - Tailored engagements for your specific security challenges What You Get Real vulnerabilities. We identify exploitable weaknesses in your systems, not theoretical risks. Real recommendations. Practical remediation guidance you can actually implement. Actionable progress. Clear reports that help you fix what matters and improve your security posture. Why It Matters Most breaches exploit vulnerabilities that proper testing catches. Security shortcuts become expensive problems. Proactive assessment beats reactive damage control. We help you understand your real risks before attackers do. Our Mission Reimagining proactive security for everyone. No fluff. No buzzwords. Just expert penetration testing that protects what matters.

Who Is the Company Behind Subverted?

Swarmnetics

Swarmnetics was established in 2015 by industry veterans with more than 25 years of cybersecurity experience. We deliver cybersecurity assessment services including vulnerability assessment, penetration testing, secure code review, secure configuration assessment and managed private bug bounty programs. Our core team is headquartered in Singapore and we manage an elastic team with more than 50 security researchers across the globe. Swarmnetics is a CREST accredited company.

Who Is the Company Behind Swarmnetics?

SynerComm

SynerComm is an IT solution provider specializing in security infrastructure, network infrastructure, enterprise mobility, remote access, wireless solutions, audit, penetration testing, and information assurance.

Who Is the Company Behind SynerComm?

  • Seller: SynerComm
  • Year Founded: 1991
  • HQ Location: Brookfield, US
  • Twitter: @SynerComm
    358 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    59 employees on LinkedIn®

Tech Fusion Lab

Tech Fusion Lab is a full-stack technology partner specializing in software development, AI automation, cybersecurity, product strategy, and creative design. We help startups, scaleups, and enterprises build modern, scalable products while accelerating their go-to-market execution. Our engineering team delivers end-to-end solutions across web and mobile development, cloud architecture, DevOps, data engineering, and third-party integrations. We also provide practical AI automation—ranging from AI agents and workflow automation to video generation pipelines, chatbots, and personalized content systems—to help companies increase efficiency and reduce operational overhead. On the security side, Tech Fusion Lab offers comprehensive penetration testing, secure code reviews, architecture assessments, and SOC 2/ISO 27001 readiness support to ensure every product meets enterprise-grade standards. Complementing our technical expertise, we provide GTM advisory, brand identity, website design, and creative services that help founders validate ideas, attract customers, and present a professional brand from day one.

Who Is the Company Behind Tech Fusion Lab?

Who Uses This Product?

  • Company Size: 100% Small

Techimpossible Security Inc.

**Revised description (≈280 words)** Techimpossible Security Inc. is a Vancouver-based cybersecurity consultancy focused on helping cloud-native and SaaS organisations build security that stands up to real-world pressure and regulatory scrutiny. Led by founder Peter Skaronis—who brings more than 15 years in cybersecurity and two decades in technology—we combine deep, hands-on expertise with carefully selected automation to shorten time-to-remediation and keep security debt under control. Our core offerings fall into three areas: * **Security Engineering & DevSecOps:** architecture reviews, secure SDLC guidance, infrastructure-as-code hardening, and CI/CD pipeline security. * **Offensive Security:** penetration testing, red teaming, and adversary simulation to surface exploitable gaps before attackers do. * **Governance, Risk & Compliance:** SOC 2, ISO 27001, HIPAA, NIST CSF 2.0, CIS Controls 8.1, and privacy frameworks. We map current controls, provide actionable remediation plans, and guide clients through audits without vendor lock-in. We approach every engagement with three principles: 1. **Outcome over artefact.** Evidence matters, but measurable risk reduction matters more. 2. **Continuous over periodic.** Security reviews should align with your release cadence, not an annual calendar. 3. **Clarity over jargon.** Recommendations are written in plain language so engineering, leadership, and auditors stay aligned. Our clients range from venture-backed start-ups to critical-infrastructure operators. Regardless of size, they choose us when they need a partner who can translate security frameworks into practical, implement-today steps—without adding layers of complexity. If you need to prioritise high-impact fixes, tighten compliance posture, or sanity-check an emerging architecture, Techimpossible Security Inc. delivers straight answers and proven paths forward.

Who Is the Company Behind Techimpossible Security Inc.?

TechMagic

TechMagic is a full-cycle software development and cybersecurity company with strong HealthTech expertise — 12+ years on the market, 400+ engineers and security specialists, and 200+ completed projects. We build digital products from concept to production: full-stack web and mobile development, cloud infrastructure, AI integration, and data engineering. Our backend stack covers Node.js, NestJS, Java, .NET, Python; frontend — React, Next.js, React Native, Angular, Vue.js; infrastructure — primarily AWS, with GCP and Azure projects as well. Beyond development, we help companies integrate AI into existing products and build AI-native solutions from scratch — from architecture and model selection to deployment and monitoring. On the security side, TechMagic holds CREST accreditation for penetration testing and is certified to ISO 27001 and ISO 9001. Our cybersecurity services include manual penetration testing (web, mobile, API, network, cloud), vCISO, application security, and compliance support for SOC 2, ISO 27001, and PCI DSS. Our services: · Discovery Phase · UX/UI Design · AI Development & Integration · Web Development · Mobile Development · Cloud Consulting · Test Automation · Cybersecurity · Salesforce Development · CTO as a Service · Data Engineering Case studies: techmagic.co/case-studies

Who Is the Company Behind TechMagic?

  • Seller: TechMagic
  • Year Founded: 2014
  • HQ Location: Kraków, PL
  • Twitter: @TechMagic_inc
    896 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    321 employees on LinkedIn®

TechPolygon

Manage your complete business IT infrastructure with Next-Gen technology Solutions. TechPolygon delivers advanced synchronized security solutions through Next-generation technology partnership with security industry leading vendors and executes consulting services to protect small & medium sized organizations from any advanced threat. We design unique solution strategies for businesses to defend against cyber threats and non-compliance through consulting, Managed Security Services and training. TechPolygon team has a total of 30 plus years of combined technical service experience. We use our extensive experience to help your company or organization to manage and maintain your IT environment in today’s ever-changing and risky IT landscape. We not only focus on training our staff on cutting edge technology but also on delivering a friendly customer service experience to our clients and their staff. Our Vision is to provide an extraordinary level of IT services and keep your business assets properly safe from threats & manipulations. Our Mission is to innovative, stabilize, optimize and secure IT environment with Next-Gen technology solution. We deliver managed services differently. We offer flexible terms, so you pay for only the services you need. We genuinely care about our clients, and go to extraordinary lengths to build relationships that earn your trust. Our Core services: Managed XDR Services Managed Security Service Vulnerability Assessment & Penetration Testing Cybersecurity Compliance Advisory & Consulting ( E.g. PCI, HIPPA, GDPR, SOC Assessment, ISO 27001) Security Awareness training Network Implementation support Managed IT Services

Who Is the Company Behind TechPolygon?

Lauren Worth
LW
Researched and written by Lauren Worth
Updated October 3, 2024