Strong on both Core Competencies and 360-Performance. These firms have proven track records, deep specialisation, and solid client outcomes. Default recommendation for most buyers.
Top Application Security Testing Companies
Goodfirms has reviewed 1,047 Application Security Testing Companies as of September 2026 across 80 countries. The top-ranked firm is QA Mentor (5.0 stars, 8 verified reviews, < $25/hr, founded 2010, NYC). Across the category, the median hourly rate is $37, median client rating is 4.8, and 39% of firms employ 50+ members. Explore the vetted Application Security Testing Companies below, compare their strengths, and connect with the provider best suited to your requirements.
Application security breaches are no longer isolated incidents — they are business-defining events. Application security companies today operate across an expanded attack surface shaped by AI-generated code, third-party APIs, and cloud-native deployments — and the need for trusted application security testing partners has grown sharper across every industry. The firms on this list deliver application security testing services that cover the full vulnerability spectrum — from static code analysis to dynamic runtime testing and compliance validation. Each uses proven application security testing tools to surface what automated scans miss. Goodfirms evaluated these companies on methodology, industry experience, and their ability to protect what you have built.
Goodfirms has verified 1,047 Application Security Testing Companies - part of 5,425+ Software Testing Companies reviewed across 80 countries, each passing Goodfirms' 4-step verification process (background check, client interviews, portfolio audit, ongoing quality review). Listings marked "Sponsored" are agencies that pay for premium placement - sponsorship does not affect star ratings or review content.
Top 10 at Glance
Compare the highest-ranked firms first side by side.
List of Best Companies for App Security Testing
Using AI Tools
Claude
Hanse Holding & Consulting GmbH is a Bremen-based holding and consulting company with a focus on the development and launch of digital products. We support the entire lifecycle from research and UX concept design through development to testing and support, quickly, focused, and without compromising ... read Hanse Holding & Consulting GmbH reviews & insights
$100 - $149/hr10 - 492024Bremen, GermanyWorking with Hanse Holding was a very productive partnership
- Assistant Operations ManagerWhy Hanse Holding & Consulting GmbH?
- End-to-end digital product delivery
- Fast execution with clear communication
- Scalable solutions with lean processes
Compass IT Compliance is a leading IT Security, Audit, and Compliance Firm that focuses on helping organizations do what matters most: Protect the sensitive data that they hold on behalf of their clients and customers. With industry leading certifications, such as Certified Information Systems Auditors (CISA) and Certified Information System Security Professional (CISSP), Compass is ... read Compass IT Compliance, LLC reviews & insights
$50 - $99/hr10 - 492010Providence, United StatesWe are Global Enterprise Security company delivering comprehensive security solutions and services. We adopt an end-to-end comprehensive security testing approach from information congregation to result in reporting for uncovering the vulnerabilities, mitigating the security risks and enhancing the security posture of the applications and products.
< $25/hr2 - 92018Chennai, IndiaUsing AI Tools
Claude
Most founders think about security when a deal forces them to. We've been in those rooms on the sales side of compliance conversations, watching companies scramble to get audit-ready in weeks, receive reports their engineering teams can't act on, and pay for work they don't fully understand.Some founders get ahead of it. Most get pushed ... read Auro Security reviews & insights
$25 - $49/hr2 - 92025Sharjah, UAEWhy Auro Security?
- Security First Thinkers
- Built for Tech founders
- Practical and Actionable Guidance
Using AI Tools
Cursor
Lumo
Certi360 is a Canadian information security consulting firm that helps organizations turn complex security and compliance requirements into practical, sustainable programs.We support businesses with ISO 27001, ISO 27701, ISO 27018, ISO 42001, SOC 2, PCI DSS, CMMC, privacy compliance and security testing. Our approach is personalized, pragmatic and focused on reducing risk—not producing paperwork for ... read Certi360 reviews & insights
$150 - $199/hr2 - 92021Laval, CanadaWhy Certi360?
- Practical guidance, not generic templates
- Security and compliance under one roof
- Personalized support from start to finish
DS Solution Vietnam, JSC is a branch company of DS Solution,. INC – an IT services firm based in Japan and APAC. We provide IT consulting and IT outsourcing, offshoring software development services. We help customers to transform IT to next level with latest cloud ... read DS Solution Vietnam reviews & insights
NA10 - 492022Hanoi, VietnamIoT & Supply chain management service
- Paul DanVarutra is an Information Security Consulting firm, providing specialized security services for Mobile, Web and Network. Varutra Consulting is pure play Information Security Consulting; Solutions & Training services firm, providing specialized security services for software, mobile devices and network. At Varutra, we follow a unique methodology that is a result of our expertise, experience and ... read Varutra Consulting Pvt. Ltd. reviews & insights
< $25/hr10 - 492012Pune, IndiaCalsys is a consulting and technology services company based in India. We offer a range of technology enabled services and solutions, which caters to the end-to-end requirements of our clients. We have the capability to understand business challenges of our clients, thereby to become their trusted advisors and IT solution providers. We emphasize on innovation ... read CALSYS COMMUNICATION PVT LTD reviews & insights
$25 - $49/hr010 - 49Cherthala, Indiai6SecSolutions Pvt Ltd is a global cybersecurity and managed security services provider delivering AI-driven and intelligence-led security solutions for modern enterprises. The company specializes in Security Operations Center (SOC) services, SIEM monitoring, threat detection and response, vulnerability assessment and penetration testing (VAPT), digital forensics, cloud security, and regulatory compliance management. Leveraging advanced analytics, automation, and ... read i6SecSolutions Pvt Ltd reviews & insights
$50 - $99/hr50 - 2492017Coimbatore, IndiaMoviri masters the power of transformative technologies to help companies achieve unprecedented levels of business performance. Since its inception, Moviri has focused its consulting offering on hard technology challenges with large-scale business impact in performance engineering, security, analytics and IoT. Our people are world-class experts in leveraging data, software and insights to help customers gain ... read Moviri reviews & insights
NA250 - 9992000Milan, ItalyiShore Software Solutions is a leading Custom Software Development Company Providing end to end intuitive, highly interactive and bespoke Enterprise Software and Industry Specific Software solutions that help you meet your business needs, having a strong client base in the USA, UK, and other European ... read iShore Software Solutions reviews & insights
NA10 - 49Noida, IndiaGood company for small business
- SEO ExecutiveFlexential stands for something not often found in the world of IT transformation: the human touch. The best infrastructure solutions aren’t about infrastructure, they’re about people. With a mission to accelerate customer success through people and technology, we build trusted relationships and deliver tailored, value-added and reliable solutions to demonstrate the power of people in ... read Flexential reviews & insights
< $25/hr1,000 - 9,9992000Charlotte, United StatesRUPSTECH PVT LTD., is a quality-oriented company based in Bangalore, India and It was established in the year 2018 by a team with long and distinguished career in IT & Recruitment sector and with a view to provide services to the our clients and candidates. RUPSTECH PVT LTD.,is a premier service provider of Product Development, ... read Rupstech Pvt. Ltd reviews & insights
$50 - $99/hr50 - 2492018Bengaluru, IndiaBased in Leeds with clients across the UK, we are a team of cybersecurity consultants with a niched range of skills within various industries. Our diverse training and project experiences make us a solid and long-term partner for our clients. From risk assessment and ISO gap analysis, to threat management, training and governance advice - ... read Digital Threat Management reviews & insights
$50 - $99/hr2 - 92019Leeds, United KingdomHacken is a trusted blockchain security auditor on a mission to make Web3 a safer place. With a team of 60+ certified engineers, Hacken provides solutions covering all aspects of blockchain security, such as Smart Contract Audit, Blockchain Protocol Audit, dApp Audit, Penetration Testing, CCSS Audit, Proof of Reserves, Tokenomics Audit and design. From security ... read Hacken reviews & insights
$200 - $300/hr50 - 2492017Tallinn, EstoniaUsing AI Tools
ChatGPT
Gemini
Established in 2019, SECISYS provides cybersecurity and GRC services, including penetration testing, information security management, ISO 27001 consulting, cloud security, and regulatory compliance support. We work with organizations globally, including EMEA and North America, helping them build resilient, secure, and compliant digital environments.With a strong track record of successful engagements and trusted client partnerships, we ... read Securing Information System (Pvt) Ltd reviews & insights
$50 - $99/hr2 - 92019Islamabad, PakistanWhy Securing Information System (Pvt) Ltd?
- Expert cybersecurity & GRC solutions
- ISO 27001 & compliance expertise
- Trusted by clients across EMEA & NA
We offer end-to-end fully customized Managed Testing & Turnkey Services that enable you to focus on your core business.People often ask us what we do as a ‘Tech’ company. Since our inception in 2008, we have focused on creating long-term value for our customers by solving pressing business problems through technology. As employees, we encourage ... read American Technology Consulting - ATC reviews & insights
< $25/hr50 - 2492007Clive, United StatesBest-in-class cybersecurity consulting firm with primary focus on application security, DevSecOps and threat modelling. Also, provide multiple unique solutions like CyberRISK4Board and cyberinsurance consulting. Certified engineers and company is registered consulting partner with both AWS & Azure. Our razor-sharp focus is to provide our services and offerings to small & medium businesses as well as ... read CyberSafeHaven Consulting reviews & insights
$100 - $149/hr2 - 92019Bengaluru, IndiaZyxware is a Digital services company offering consulting, engineering, and quality assurance services through its engagements with clients since 2006. Headquartered in India, with offices in the USA & Australia - Zyxware has a team with competencies in Business, Engineering, and Experience, enabling brands to achieve digital agility and leadership in their categories. Zyxware enables ... read Zyxware Technologies reviews & insights
$50 - $99/hr50 - 2492006Jersey City, United StatesAt JA DevOps consultancy, we help businesses build and deploy software to the cloud. Nearly every modern company face challenges when it comes to software releases. However, none of them is willing to sacrifice software quality over speed of releasing, where DevOps practices help the most. We enable companies to exceed their customer expectations, avoid ... read Jonah and Associates reviews & insights
$25 - $49/hr2 - 9Auckland, New ZealandUsing AI Tools
Claude
GitHub Copilot
Cursor
724SOFTWARE is a Vietnam-based technology company providing engineering services, custom software development, and managed IT services for startups, SaaS companies, and enterprises.With 200+ professionals, including 58% senior-level experts, and delivery experience across 10+ countries, we bring multilingual collaboration and domain expertise in Fintech, Digital Healthcare, and Enterprise ERP.Supported by ISO 9001 and ISO 27001 certifications, ... read 724SOFTWARE reviews & insights
< $25/hr50 - 2492020Hanoi, VietnamWhy 724SOFTWARE?
- Cost Efficiency and Strategic Location
- Practical AI Adoption and Expertise
- Follow the Sun Support and SLA Commitment
InfoStream is a Saudi-based digital transformation and IT infrastructure company specializing in secure data center modernization, network architecture, cloud enablement, and enterprise data analytics. We support government, semi-government, and enterprise organizations in building resilient, compliant, and future-proof technology ecosystems. With a strong focus on cybersecurity, data governance, and high-availability infrastructure, InfoStream delivers solutions aligned with ... read InfoStream reviews & insights
$25 - $49/hr10 - 492025Al Khobar, Saudi ArabiaSECUREU is a cybersecurity firm specializing in Vulnerability Assessment & Penetration Testing (VAPT), cloud security audits, and DevSecOps implementation for Indian startups, SMEs, and enterprises. Founded in 2022, we've secured 50+ companies across fintech, healthcare, SaaS, and e-commerce sectors. Our mission is to make enterprise-grade security accessible to growing businesses through affordable pricing, fast delivery, ... read SECUREU reviews & insights
NA2 - 92022Bengaluru, IndiaUsing AI Tools
Local AI
VulnXperts helps organizations identify security gaps, validate their defenses, and reduce cyber risk through practical offensive security testing.Our services include penetration testing, red teaming, DDoS attack simulation, security architecture reviews, and secure development assessments across web, mobile, API, cloud, AI, and network environments.
$50 - $99/hr2 - 92025Manama, BahrainWhy VulnXperts Consultancy W.L.L?
- Senior experts lead every engagement.
- Testing is tailored to your environment.
- Findings are clear and actionable.
We help our clients analyze markets and competition, evaluate efficiency of their processes/organization and understand latest trends & technology. We carefully plan and design changes the enterprises need to apply to succeed and grow their business. And above all, we help our clients implement the projects to make it all happen.
< $25/hr50 - 2492007Prague, Czech RepublicWe help digital-enabled companies sustain their growth by identifying API-related cybersecurity risks and developing reliable and efficient remediation strategies. We cover API, Kubernetes, OpenShift, AWS, Azure, GCP and AliCloud.
$50 - $99/hr2 - 92019Nieuwegein, NetherlandsUsing AI Tools
Claude
GitHub Copilot
BurpSuite
EyeQ Dot Net Pvt Ltd is an cybersecurity company that provides services and managing cyber risk on behalf of our valued distribution and technology partners. We are Leading cyber security compliance service provider offering ISO 27001, SOC 2, PCI DSS, Vulnerability Assessments & Penetration Testing services for startups, enterprises, and regulated industries.
$25 - $49/hr10 - 492022Mangaluru, IndiaWhy EyeQ Dot Net Private Limited?
- 25 years combined cybersecurity expertise
- Certified experts with proven track record
- Fast delivery with enterprise-grade quality
CBNITS is a trusted Big Data, Machine Learning & IT firm based in San Jose, California. We are committed to build the best yet affordable mobile applications, web design, digital marketing, software applications, ERP solutions and a well-planned IT infrastructure. Our approach is to blend ... read CBNITS reviews & insights
$25 - $49/hr50 - 249San Jose, United StatesWorst Experience!!!
- Pensions AdministratorKämpfen Sie mit einer veralteten Website? Ist Ihre aktuelle Agentur oder Ihr Freelancer unzuverlässig oder zu teuer? Erscheint bei der Google-Suche nach Ihnen dieser Emoji: 🤷? Sollte eine oder mehrere dieser Fragen auf Sie zutreffen, keine Sorge! Ich bin Robin – Ihr Retter in der digitalen Not und studierter WordPress Webdesigner aus Bonn. Seit 2015 ... read roehler.nrw reviews & insights
$100 - $149/hr0FreelancerCologne, GermanyCatalysts is already the largest individual software supplier In Upper Austria and was furthermore elected to Austrias most popular employer by its employees and applicants.
< $25/hr250 - 9992005Frankfurt, GermanyAstra is the go-to security suite for your website. With Astra, you don't have to worry about any malware, credit card hack, SQLi, XSS, SEO spam, comments spam, brute force & 100+ types of internet threats. This means you can get rid of multiple security solutions & let Astra take care of it all.
NA10 - 49Based in North Carolina, DigitalOsprey LLC is a small cybersecurity firm specializing in penetration testing services for organizations. We have over 10 years of experience in the cybersecurity industry, protecting education, manufacturing and local government organizations, amongst others. Digital Osprey offers penetration testing services to a limited number of customers, currently no more than 10 ... read Digital Osprey LLC reviews & insights
NA2 - 92024Raleigh, United StatesAnviam Solutions Private Limited is the leading software development company in India and USA offers the multiple utmost quality services like web development, automation, Digital marketing, android development, data science artificial Intelligence, and machine learning. We have been working in this field for the last ... read Anviam Solutions reviews & insights
$25 - $49/hr50 - 2492016Mohali, IndiaI'm very grateful to have come across Aman Sharma and Anviam!
- Founder & CEOSynopsys technology is at the heart of innovations that are changing the way we live and work. The Internet of Things. Autonomous cars. Wearables. Smart medical devices. Secure financial services. Machine learning and computer vision. These breakthroughs are ushering in the era of Smart, Secure Everything―where devices are getting smarter, everything’s connected, and everything must ... read Synopsys reviews & insights
< $25/hr10000+1986Mountain View, United StatesSecureworks Unleashes the Value of Your Security Investments to Achieve Business Objectives. Secureworks is 100% focused on cybersecurity. In fact, it's all we do. For nearly two decades, we've committed to fighting the adversaries in all their forms and ensuring that organizations like yours are protected.
$50 - $99/hr1,000 - 9,9991999Edinburgh, United KingdomAt devSpark Ltd, we empower businesses and institutions with tailored software development and procurement solutions. Our services range from innovative web and SaaS solutions to specialized engineering and scientific equipment procurement for government and academic sectors. With over 20 years of expertise, we deliver precision, reliability, and value.
$50 - $99/hr2 - 92024Manchester, United KingdomSecureLayer7 is a leading cyber security company that offers specialized services like penetration testing, vulnerability assessments, source code audits, & red teaming. We operate in multiple countries including India, USA, UAE, and more.
$50 - $99/hr10 - 492012Pune, IndiaToday, data has become the world’s most valuable (and vulnerable) resource. As our reliance on data continuesto grow, we face increased risk from an unprecedented level of new threats. Offering a unique convergence of cybersecurity and physical security that maximizes the effects of each, Interceptor has successfully servicedclients of all sizes - from SMB to ... read Interceptor Security LLC reviews & insights
NA10 - 492008Columbia (Maryland), United StatesAdvance Datasec. is an innovative cyber security company based in Saudi Arabia, dedicated to providing top-tier cybersecurity services.With a customer-first approach and a team of seasoned professionals, we focus on safeguarding your business while empowering your team through education and awareness.At Advance Datasec, our values guide everything we do. They are the foundation of our ... read Advance Datasec reviews & insights
NA10 - 492023Riyadh, Saudi ArabiaWe are RedCode, a Croatia‑based digital agency founded in 2010. Our multidisciplinary team specializes in mobile apps (80% of projects), webshops, websites, custom systems and UX design, using Flutter, Laravel, Next.js, Swift, Kotlin and more. We pair pragmatic analysis, robust engineering and ongoing support to deliver 169 projects, 46 mobile apps and long-term client partnerships—zero ... read RedCode reviews & insights
$50 - $99/hr2 - 92010Zagreb, CroatiaNexusLink Services is a trusted IT partner of choice for the world's leading enterprises for Custom Software Development and Software Outsourcing services. We are Awarded by the Best Software Development Company in Gujarat by GESIA in 2019. We provide Software development services in the USA, ... read NexusLink Services India Pvt Ltd reviews & insights
$25 - $49/hr50 - 2492011Ahmedabad, IndiaBehaviour
- Mayank ChauhanWelcome to AIntelligence Technologies! At AIntelligence Technologies, we are at the forefront of innovation, leveraging the power of artificial intelligence and cutting-edge technologies to create transformative software solutions. From web development to mobile applications and AI/Machine Learning, we specialize in crafting bespoke software tailored to meet the unique needs of our clients. Our team of ... read AIntelligence Technologies reviews & insights
$25 - $49/hr10 - 492024Patna, IndiaTestingXperts is a Next-Gen QA & Software Testing Services provider, co-headquartered in London, UK and Harrisburg, PA in the USA, with offices in the Netherlands, USA, Singapore and offshore test labs in India. TestingXperts’ comprehensive suite of testing services covers Test Advisory, Functional and Non-Functional testing, specializing in Automation, Digital, DevOps, Agile, Web, Mobility, IoT, ... read TestingXperts reviews & insights
NA1,000 - 9,9992013Mechanicsburg, United StatesExactest is an independent specialist software testing consultancy. At Exactest we specialise in all aspects of software and business process testing with unrivaled experience in many verticals across public and private sectors. We provide complete managed test service solutions as well as providing specialised testing skills when required. Our focus is software testing and all ... read Exactest reviews & insights
$50 - $99/hr10 - 492014Dublin, IrelandDIMA-STC is a privately-owned IT company that specializes in quality assurance and development of innovative software for international markets. Our company currently has 42 employees in Raaba (Graz). Our focus is on the quality of our employees. Professionalism and the coordination between the knowhow of our employees and the customer requirements are our highest priority! ... read DIMA Software Technology Center reviews & insights
$25 - $49/hr10 - 492015Graz, AustriaSHIFT Inc. is one of global IT related companies focused on software quality assurances, founded in Japan in 2005. SHIFT offers creative Software testing service(Automation/Manual) worldwide with western Architect, Japanese Productivity and Asian Talent. SHIFT is headquartered in Tokyo, Japan and has three consolidated subsidiaries, SHIFT PLUS Inc.(Japan), SHIFT India Pvt. Ltd.(India), and SHIFT Global ... read SHIFT Inc. reviews & insights
$25 - $49/hr10000+2005Tokyo, Japanq-leap is a Software Quality company, founded in 2012 and based in Luxembourg. With over 10 experts in software engineering, testing, architecture, business analysis, and project management, we advise, train and implement for our customers’ quality processes and technologies that fit their objectives so that they can deliver better quality software. We have a dream ... read q-leap reviews & insights
$50 - $99/hr50 - 2492012Luxembourg, LuxembourgiLAB specializes in Software Quality Assurance services, providing global solutions to our customers. As a leading Software Quality Assurance provider, we offer a comprehensive and integrated service portfolio. iLAB’s solutions are provided through our best-of-breed methodologies and tools supported by our international skills base and proven competencies. Our suite of services include: •Quality Management •Quality ... read iLAB reviews & insights
$100 - $149/hr1,000 - 9,9991995Johannesburg, South Africa
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The Magical Quadrant
Hover any bubble for the firm's exact scores. Filter the view using the controls on the right.
The four quadrants explained
Each card shows the count of firms in that quadrant and the top 5 by composite score.
Strong execution but broader service mix. High-quality generalists - good fit if your project crosses multiple disciplines in one engagement.
Deeply specialised but with moderate market presence. Often the right pick when specialisation matters more than scale - boutique shops with deep technical chops.
Top 5 by composite score
1DataArt100 / 482Testlio100 / 423Forte Group100 / 404Oxagile100 / 375BIT Studios100 / 36Newer entrants and smaller boutiques. Higher risk but often the best price-performance - particularly for early-stage startups or non-mission-critical projects.
The 3 highest-scoring firms in the Industry Leaders quadrant. Each has both Core Competencies and 360-Performance ≥ 50. Click any card for the full profile.
How firms are placed on the matrix
Every position on this chart is the output of the Goodfirms ranking algorithm - a weighted composite of signals across two axes. The algorithm is recomputed regularly and is fully documented.
Sponsorship does not affect placement. PRO members receive visible badges and ad placements, but their algorithmic scores are calculated identically to free listings.
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