Our expert analysts listed the leading penetration testing companies that help organizations keep malicious systems and network attacks at bay. Search and choose the most fitting partner firm for your business with our user-friendly filtering tool.
Best Penetration Testing Firms
7 Companies-Rankings updated: September 04, 2026
DesignRush evaluates all cybersecurity firms listed based on technical expertise, proven practical experience, and client reviews. Some listings may be paid.
Intrix Cyber Security is a specialist Australian consultancy providing high-end offensive security and strategic advisory services. As an approved supplier on the BuyICT and Buy NSW government panels, we provide advanced penetration testing, Essential Eight maturity uplift, and 24/7 incident response. We...
Top Services:
Cybersecurity
IT Compliance Solution
Software Testing
IT Services
Managed Services
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Location
Sydney, Australia
Number of Employees
Under 49
Average Hourly Rate
$250/hr
Minimal Budget
$1,000 - $10,000
Intrix Cyber Security Services
Cybersecurity
IT Compliance Solution
Software Testing
IT Services
Managed Services
Cloud Consulting
DevOps Consulting
AI Development
Business Consulting
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Public Sector Network
NSW Department of Industries
ALDI
Australian Investment Counsil
Toyo Towers
MyBudget
Charholic Schools NSW
NSW Customer Service
BATES SMART
North Sydney Counsil
Data sourced from the agency's DesignRush profile
Intrix Cyber Security Reviews & Testimonials
fumin lu Review from Google
5.0★
fumin lu's Review Sourced from Google
Our experience with Intrix Cyber Security was nothing short of phenomenal. From the moment we engaged their services for a penetration testing, we knew we were in safe hands.What impressed us the most was their rapid response to our inquiries—always there when we needed them. Working with Intrix was a pleasure, and we highly recommend them as a top-notch cybersecurity partner.A heartfelt thank you to the entire team at Intrix for going above and beyond in safeguarding our digital assets!
Practice Profiles Review from Google
5.0★
Practice Profiles's Review Sourced from Google
To comply with ever increasing corporate-client demands, we recently worked with Ibrahim and the team at Intrix Cyber Security to conduct a security audit of our system and to pass Pen Testing of our key applications. From start to finish, their team demonstrated exceptional customer service. They were very professional, knowledgeable and easy to work with.They conducted an in-depth analysis of our applications to identify potential vulnerabilities and provided us with a detailed report of their findings as well as actionable recommendations on how best to address them. They were always available to answer our questions and worked with us through the remediation process.We highly recommend Intrix to anyone in need of such services. Their expertise and customer service were exceptional, and after all the “inconvenient” (and by that I mean pain-in-the-arse) hard work, they helped us improve our security narrative and certification to the level where we are now able to tout such credentials as a competitive advantage in our space.
Fayez Moussa Review from Google
5.0★
Fayez Moussa's Review Sourced from Google
I cannot recommend Intrix enough! As a member of the board at a local school, we recently hired them to conduct a comprehensive security audit, and the results were nothing short of exceptional. Their team was incredibly knowledgeable, professional, and efficient in identifying potential vulnerabilities in our systems and providing actionable recommendations to address them. They took the time to explain their findings and recommendations in a way that was easy for us to understand, which was greatly appreciated.The team at Intrix truly went above and beyond to ensure the security and privacy of our students, staff, and faculty. Their attention to detail, expertise, and commitment to our organization's security needs were second to none. We are so grateful for their partnership and would highly recommend them to anyone in need of top-notch cyber security consulting services. Thank you again for everything, Intrix!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Empowering business success with custom software solutions
Lindner IT specializes in developing industry-specific software solutions that empower enterprises. Using technologies such as SolidJS, Svelte, VueJS, Astro, ASP.NET Core, and Rust with Actix, our experienced team excels at both frontend and backend web development. Using our knowledge of Microsoft Azure and...
Top Services:
Web Design
Mobile App Development
Web Development
UI/UX Design
Software Development
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Location
Igersheim, Germany
Number of Employees
Under 49
Average Hourly Rate
$75/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
2 Projects Listed
Lindner IT Services
Web Design
Mobile App Development
Web Development
UI/UX Design
Software Development
Software Testing
WordPress Website Design
SEO
Managed Services
Cybersecurity
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Enterprise businesses
Medium sized businesses
Small businesses
Data sourced from the agency's DesignRush profile
Lindner IT Reviews & Testimonials
Denise ! Review from Google
5.0★
Denise !'s Review Sourced from Google
I can only recommend Lindner IT to everyone.Robin Lindner always takes care of our various IT projects quickly and comprehensively. And if we ever had problems, he was usually able to fix them after a short time.Working together is fun and we don't regret our IT switch to Lindner IT in any way. On the contrary, we should have done this much earlier.Big thank you for the great support!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Designed To Simplify, Secure, And Scale Your Business
The 20 MSP delivers Managed IT Services that help businesses operate smarter, safer, and more efficiently across single and multi-location environments. We act as a true extension of your organization, providing proactive IT support, cybersecurity, cloud and Microsoft and Apple management, and strategic IT...
Top Services:
Managed Services
IT Services
Cybersecurity
Location
Plano, Texas
Number of Employees
100 - 249
Average Hourly Rate
$200/hr
Minimal Budget
$1,000 - $10,000
The 20 MSP Services
Managed Services
IT Services
Cybersecurity
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Brazoria County Alliance for Children
KW2
St. Dunstan's
Die and Tool Service
Integribees
LIFT
West Loop Law
Fong Legal
Haas Petroleum Engineering Services, Inc.
Bloomin Blinds
Data sourced from the agency's DesignRush profile
The 20 MSP Reviews & Testimonials
Toni J Review from Google
2.0★
Toni J's Review Sourced from Google
Service guys and operators are kind and good at what they do. Since being taken over, the Acct Manager we deal with is rude, short and acts like everything is a problem unless she thinks she's going to get a sale. So kind and responsive at that point, the rest of the time, No.
Jim Bachaud Review from Google
5.0★
Jim Bachaud's Review Sourced from Google
One of the largest and fastest growing IT services providers in the country. Knowing I can call the support desk 24/7 for solutions, when we deal with real deadlines with real consequences, makes a huge difference for me as well as our staff.And, for the most part, we don't have to call the support desk because everything works. The only times I have to reach out is when we hire a new person, or add a new service or license. They are very pro-active and results oriented.
Sean Pratt Review from Google
3.0★
Sean Pratt's Review Sourced from Google
The company we hired to handle the IT services for our small business sold out to these guys and the service we received plummeted. We were paying a ridiculous monthly fee for managed IT services yet the few times we'd actually need help we would end up on hold forever and not receive calls back when promised. It took them almost two weeks to get a computer connected to our network and over a week to connect a new check scanner.**Edit: They were helpful with the offboarding process to our new IT company. The owner of the old company we had originally contracted with did reach out, which was appreciated. I really still feel that the IT services we were receiving were sub-par.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Stripe OLT are a multi-award-winning Managed Service Provider, specializing in IT, cloud & cyber security. With office in London Bristol, and Manchester, their team support and secure critical infrastructure throughout the UK...
Top Services:
IT Services
Managed Services
Cybersecurity
Cloud Consulting
IT Compliance Solution
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Location
Bristol, United Kingdom
Number of Employees
50 - 99
Minimal Budget
$1,000 - $10,000
Portfolios Count
1 Project Listed
Stripe OLT Services
IT Services
Managed Services
Cybersecurity
Cloud Consulting
IT Compliance Solution
DevOps Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Bristol Airport
Rail Delivery Group: National Rail
MoneySuperMarket Group
Hargreaves Lansdown
Knotel
NHS Confederation
Huboo
Geo Energy
Data sourced from the agency's DesignRush profile
Stripe OLT Reviews & Testimonials
Becky Lees Review from Google
5.0★
Becky Lees's Review Sourced from Google
A fantastic service - Stripe have provided us with invaluable support and insight over the years, and are always available if assistance is needed. A great team to work with!
Cara Ainsley-Bridger Review from Google
5.0★
Cara Ainsley-Bridger's Review Sourced from Google
Great company to work with, always have their clients needs at the forefront of every interaction. Very slick processes and lovely staff who will always make the time to help out.
Anna R Review from Google
5.0★
Anna R's Review Sourced from Google
Highly recommend Stripe as one of the best IT services in UK! Guys really know what are they going and take the best care of your request. Professional and friendly atmosphere!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Knoxtera empowers modern financial institutions with a new standard of cyber resilience. By uniting advanced security technologies, regulatory expertise, and continuous 24/7 monitoring, the company delivers endtoend protection that keeps critical systems, data, and operations safe...
Top Services:
Cybersecurity
Location
Warsaw, Poland
Number of Employees
Under 49
Average Hourly Rate
$180/hr
Minimal Budget
$1,000 - $10,000
Knoxtera Services
Cybersecurity
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
SyncApp Technologies empowers businesses with smarter, scalable app and web solutions designed to transform workflows, enhance user experiences, and deliver measurable ROI. From architectural visualization platforms to AI powered assistants and enterprise integrations, we specialize in building future ready...
Top Services:
Software Development
Web Development
Mobile App Development
IT Services
AI Development
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Location
Ghaziabad, India
Number of Employees
Under 49
Average Hourly Rate
$20/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
1 Project Listed
Syncapp Technologies Services
Software Development
Web Development
Mobile App Development
IT Services
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
RentalHost
MeandrEV
Voto Consulting
Data sourced from the agency's DesignRush profile
Syncapp Technologies Reviews & Testimonials
Virendra Singh Review from Google
5.0★
Virendra Singh's Review Sourced from Google
Our experience working with Sync App Technologies has been excellent and highly satisfying. Their team demonstrated professionalism, strong technical knowledge, and a clear understanding of our project requirements. Communication was smooth and transparent throughout the process, and they were always open to feedback and suggestions. It has been a pleasure working with them, and we look forward to collaborating again in the future
Kavita Singh Review from Google
5.0★
Kavita Singh's Review Sourced from Google
Absolutely amazing experience! The SyncApp team is knowledgeable, friendly, and delivers on time. Their quality of work is top-notch. Highly recommended!
Kumar Vishal Review from Google
5.0★
Kumar Vishal's Review Sourced from Google
5/5 – Outstanding Experience with SyncApp Technologies!SyncApp Technologies has been exceptional from start to finish. Their team combines deep technical expertise with a strong commitment to delivering high-quality solutions. What truly stands out is their professionalism, attention to detail, and ability to understand client requirements perfectly.SyncApp Technologies is an excellent choice. Highly recommended!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Welcome to Raygain, Enabling Growth Through Tech Excellence.
As a leading name in the cybersecurity industry, we offer a comprehensive range of cutting-edge solutions to fortify your online safety. Our specialization lies in delivering state-of-the-art technologies to reduce the impact of emerging threats. From advanced threat detection to proactive risk management...
Top Services:
Managed Services
Cybersecurity
IT Services
CRM Consulting
Cloud Consulting
Show more
Location
Borehamwood, United Kingdom
Number of Employees
100 - 249
Average Hourly Rate
$20/hr
Minimal Budget
$1,000 - $10,000
Raygain Services
Managed Services
Cybersecurity
IT Services
CRM Consulting
Cloud Consulting
DevOps Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Ministry Of Health, India
Ministry of Defence, India
Defence Research & Development Organisation, India