Explore leading software testing companies that launch high-performing products, detect bugs early, improve stability, and ensure every feature works correctly across devices and environments. For teams focused on the US market, we also highlight trusted partners with region-specific expertise, including top US-based software testing companies.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
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Azumo
VerifiedVerified by the DesignRush team for authenticity and credibility.Build Intelligent Apps for Web, Mobile, Data, AI and Cloud
Azumo builds intelligent apps with nearshore, AI-native teams that pair speed with deep technical expertise. A Claude Partner Network member with AI-certified developers, we deliver agentic AI, LLM apps, data engineering and web & mobile apps for leaders like Meta, X, Discovery, Zynga and NCSoft...
Top Services:
- AI Development
- Software Development
- Staff Augmentation
- Mobile App Development
- Big Data Analytics
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 9 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAzumo Services
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Azumo Reviews & Testimonials
Software Development Review from Michael S.
We selected Azumo to develop our software. We transitioned from another development company, so Azumo was initially responsible for migrating our existing code and environments. We are currently still working with Azumo as our nearshore software development team on adding new items to our software.
UI/UX Design Review from Anonymous
Azumo helped us migrate our existing UIs into a new framework, creating reusable components and the infrastructure needed for future development. The developer they assigned became a seamless part of our team, always punctual, responsive, and a great fit overall.
Software Development Review from Anonymous
Thanks to Azumo’s work, our product is now more scalable, optimized, and ready for a growing user base. Their team has managed the engagement effectively, keeping us updated and addressing any challenges along the way. We’ve appreciated their constant availability and proactive communication.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAt Linnify, we help visionary companies accelerate their digital development efforts. From growing startups to tech-driven organizations, we support you in defining, designing, building, and successfully launching on time through dedicated product teams...
Top Services:
- Software Development
- Web Development
- AI Development
- Mobile App Development
- Staff Augmentation
- Show more
- Location
- Cluj-Napoca, Romania
- Number of Employees
- Under 49
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 4 Projects Listed
Accelerate your business growth with our innovative software solutions. We combine cutting-edge technology, tailored strategies, and seamless execution to drive your success and stay ahead of the competition...
Top Services:
- Web Design
- Web Development
- Software Testing
- Mobile App Development
- Software Development
- Show more
- Location
- Calgary, Canada
- Number of Employees
- Under 49
- Average Hourly Rate
- $179/hr
- Minimal Budget
- $25,000 - $50,000
At Evangelist Apps, we go beyond app development, offering IT consultancy and comprehensive digital solutions that are customized to your business goals. Our goal is to deliver effective, customized strategies that fuel growth and align with industry standards...
Top Services:
- Mobile App Development
- UI/UX Design
- IT Services
- Staff Augmentation
- DevOps Consulting
- Show more
- Location
- Fleet, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Atyantik Technologies Pvt. Ltd. is a leading software company in Vadodara, Gujarat, specializing in innovative digital solutions for clients across India. We offer a wide range of services, from UI/UX Design to enterprise applications, delivering customized, high quality solutions that enhance your digital...
Top Services:
- Software Development
- CRM Consulting
- ERP Consulting
- IT Services
- SEO
- Show more
- Location
- Vadodara, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Bellosoft is a global software development agency helping businesses scale through custom solutions in web, mobile, AI, and cloud technologies. With a focus on innovation, agility, and measurable results, we partner with startups and enterprises in the US, UK, and Europe to deliver reliable products and...
Top Services:
- Software Development
- UI/UX Design
- Web Development
- Mobile App Development
- eCommerce Development
- Show more
- Location
- Watford, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $65/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 16 Projects Listed
ACME ONE is a Dubai-based technology consulting and software development company helping startups and enterprises build scalable digital products and modernize operations through high-performance software solutions...
Top Services:
- AI Development
- Web Development
- eCommerce Development
- Software Development
- Mobile App Development
- Show more
- Location
- Dubai, United Arab Emirates
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $10,000 - $25,000
ITWEBS provides full-cycle software development, web and mobile application development, eCommerce platforms, DevOps, integrations, IT support, and dedicated development teams for businesses that need reliable digital solutions...
Top Services:
- eCommerce Development
- Web Development
- Software Testing
- Staff Augmentation
- Mobile App Development
- Show more
- Location
- Warsaw, Poland
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Most businesses know something is slow or broken. They don't know exactly what to fix, or where AI actually fits. We start there: map your processes, find the highest-ROI automations, then build, run, and help your team adopt them as your ongoing AI automation partner. Certified n8n Expert Partner, Clutch...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- CRM Consulting
- IT Services
- Show more
- Location
- Tuckahoe, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Enterprise software firm founded in 2018, headquartered in Monterrey, Mexico, with a U.S. entity in Laredo, Texas. We build and integrate software for companies that operate at scale, and staff dedicated engineering teams for U.S. clients in Central Standard Time...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- Software Testing
- CRM Consulting
- Show more
- Location
- Monterrey, Mexico
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
We are an Affordable Digital Marketing Agency in Shawnee with budget-friendly solutions to amplify your brand. RevoluteX Digital: Your digital success catalyst! Specializing in Google marketing, website development, and social media magic, we craft online experiences that captivate and strategies that...
Top Services:
- Digital Services
- Web Design
- WordPress Website Design
- Digital Marketing
- SEO
- Show more
- Location
- Shawnee, Kansas
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
We provide end-to-end digital solutions - from custom software and next generation web & mobile applications to AI, machine learning, and blockchain technologies. Our team combines technical expertise with real-world business insight to deliver secure, scalable, and efficient products...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- Blockchain
- IT Services
- Show more
- Location
- Košice, Slovakia
- Number of Employees
- Under 49
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $1,000 - $10,000
Mobilunity is a global provider of IT staff augmentation, dedicated development teams, technical recruitment, and part-time IT consultancy. With over 15 years of experience, the company helps businesses access skilled IT professionals worldwide through flexible offshore and nearshore hiring models...
Top Services:
- Staff Augmentation
- IT Services
- HR Outsourcing
- Software Development
- Mobile App Development
- Show more
- Location
- Kyiv, Ukraine
- Number of Employees
- 250 - 499
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 7 Projects Listed
AI-First Software Engineering & AI Transformation Consulting PartnerViso delivers AI-first software engineering, agentic SDLC implementation, and end-to-end AI transformation consulting helping teams ship faster, reduce technical debt, and generate measurable AI ROI...
Top Services:
- Digital Services
- Logo Design
- Design Services
- Product Design
- Web Design
- Show more
- Location
- Lviv, Ukraine
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
We build web and mobile applications for tech startups and enterprises...
Top Services:
- Software Development
- Web Development
- eCommerce Development
- WordPress Website Design
- UI/UX Design
- Show more
- Location
- Beirut, Lebanon
- Number of Employees
- Under 49
- Average Hourly Rate
- $300/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 17 Projects Listed
Bespoke AI and software for startups and SMEs in the US and Australia. ERP, web, mobile and design, from a team of around 20 in Hanoi, Vietnam...
Top Services:
- Web Development
- Mobile App Development
- AI Development
- Web Design
- UI/UX Design
- Show more
- Location
- Hanoi, Vietnam
- Number of Employees
- Under 49
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Welcome to Rasonix - Your Partner in Web Development and Design Solutions At Rasonix, we believe in the power of exceptional web experiences. As a leading web development company, we are dedicated to delivering innovative and tailored solutions to meet your digital needs...
Top Services:
- SEO
- Mobile App Development
- Web Development
- UI/UX Design
- Software Testing
- Show more
- Location
- Bengaluru, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 8 Projects Listed
PWN-ALL is a Dubai-based cybersecurity and software development agency specializing in protecting and strengthening digital infrastructure for enterprises and government organizations. The firm delivers advanced services such as penetration testing, ransomware recovery, AI-driven security, and custom software...
Top Services:
- Software Development
- AI Development
- IT Services
- IT Compliance Solution
- Cybersecurity
- Show more
- Location
- Dubai, United Arab Emirates
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $185/hr
- Minimal Budget
- $1,000 - $10,000
We are bakedwith, a Berlin-based consulting firm specializing in artificial intelligence. We follow the aim of making companies more productive in the long term and giving them back time for what's important. Today, we work with teams from a variety of industries to develop solutions that increase efficiency...
Top Services:
- AI Development
- Software Testing
- CRM Consulting
- Business Consulting
- HR Outsourcing
- Show more
- Location
- Berlin, Germany
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
Kernel Guard is a security first software engineering team that builds systems attackers can't easily break. We specialize in the hard problems most teams avoid: Rust security and smart contract audits, post-quantum cryptography (PQC) migration, eBPF kernel level observability, and zero trust web...
Top Services:
- Cybersecurity
- Big Data Analytics
- Software Development
- Mobile App Development
- Blockchain
- Show more
- Location
- İzmir, Turkey
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
At Xofthub Inc., we believe great software is built on great architecture. We design scalable, maintainable systems with clear development patterns, ensuring your business can grow, adapt, and add new features whenever needed...
Top Services:
- UI/UX Design
- Mobile App Development
- eCommerce Development
- Software Testing
- Web Design
- Show more
- Location
- New Hyde Park, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $12/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 3 Projects Listed
AI-native software development company delivering custom digital solutions with expert engineering oversight, scalable architecture, and uncompromising code quality...
Top Services:
- Software Development
- AI Development
- Web Development
- Engineering
- Business Consulting
- Show more
- Location
- Egkomi, Cyprus
- Number of Employees
- 50 - 99
- Minimal Budget
- $1,000 - $10,000
ITSpecial is a full-cycle custom software development company. 12+ years, 300+ projects. We cover the whole lifecycle: business analysis, design, web & mobile, custom software, cloud, QA and support...
Top Services:
- Software Development
- Web Development
- Mobile App Development
- WordPress Website Design
- Software Testing
- Show more
- Location
- Oeiras, Portugal
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $19/hr
- Minimal Budget
- $1,000 - $10,000
We offer SEO, GEO and Web Dev services to professionals to get them ranking on search engine platforms and cited by AI...
Top Services:
- AEO
- SEO
- Digital Marketing
- Web Design
- Email Marketing
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $1,000 - $10,000
Valynx LLC is an elite, US-registered remote software studio delivering high-performance Next.js, React, TypeScript, Python, and advanced AI agent integrations. We build custom SaaS platforms, intelligent automation flows, and cinematic, high-end UI/UX website rebuilds—like our recent scroll-driven Next.js...
Top Services:
- Software Development
- AI Development
- Software Testing
- Mobile App Development
- Web Design
- Show more
- Location
- Buffalo, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
ProcessIT build Bespoke or Custom Software to match your unique business processes, just for you. You know your Business, we know Software. Tell us what you need & we'll build & adapt your logic into a full computer program so you can accurately manage, track and control your business.Save substantial...
Top Services:
- Software Development
- Business Consulting
- Web Design
- Mobile App Development
- Cloud Consulting
- Show more
- Location
- Hastings, New Zealand
- Number of Employees
- Under 49
- Minimal Budget
- Under $1,000
- Portfolios Count
- 2 Projects Listed
Tillerstack is a comprehensive Field Service Management solution designed to optimize workforce operations, schedule technicians, track jobs, and enhance customer satisfaction with real-time updates...
Top Services:
- Reputation Management
- Web Design
- SEO
- Software Development
- Software Testing
- Show more
- Location
- Berlin, Germany
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $10/hr
- Minimal Budget
- Under $1,000
KruchuVerchu (KW Group) is a full-service SEO agency for ambitious businesses. We offer website development, PBN networks, CRM, chatbots, UX mockups, software, and apps. We offer a full range of promotion services: SEO, audits, link building, Yandex.Maps, ASO, contextual advertising, and SERM. We grow...
Top Services:
- Digital Services
- Web Design
- Web Development
- SEO
- Mobile App Development
- Show more
- Location
- Novomoskovsk, Russia
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- Under $1,000
Aronexs is a India-based software and product engineering company building custom software, mobile apps, and AI-integrated solutions. We also run two SaaS products, CheckupMate and Fitsera, giving us hands-on experience shipping and scaling real products...
Top Services:
- Software Development
- Mobile App Development
- Software Testing
- AI Development
- Web Design
- Show more
- Location
- Bhopal, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $15/hr
- Minimal Budget
- Under $1,000
Our team has 7+ years of experience building software across mobile, backend and AI. We're based in India and work with founders and businesses worldwide...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- IT Services
- IT Compliance Solution
- Show more
- Location
- Ahmedabad, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Minimal Budget
- Under $1,000
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Frequently Asked Questions About Software Testing Companies
What services do software testing firms provide?
Software testing companies provide different testing services to identify errors, security risks, performance issues, and how the software behaves in real-life situations and across devices. As part of their software testing service, they also check if each feature works as expected, fix bugs, make improvements, and make sure new software development updates don’t break existing functions, so the software quality remains stable.
Core services include:
- Functional testing
- Performance testing
- Security testing
- Usability testing
- Regression testing
- Automation testing
- Accessibility testing
- Mobile app testing
- API testing
- Compatibility testing across devices/browsers
- Compliance testing
- Testing with artificial intelligence (AI) tools
- QA audit
How much do software testing services cost?
Hourly rates for QA testing range from $25 to $200+. The final cost is determined based on the size of the software or application, its complexity, required testing type, tech stack (custom-built and older legacy systems cost more), and niche.
The rate will also depend on the seniority of the software tester. Across the United States, junior quality assurance (QA) tester may charge $70 to $110 per hour, while the rate for a senior QA mentor and automation engineer can range from $130 to $200 per hour.
Special software testing services such as QA audit goes from $5,000 to $25,000.
How can businesses know what type of software testing do they need?
Businesses can determine what type of testing solutions they need based on the potential impact of failures and the likelihood of defects. Namely, if they encounter:
- Core functionality issues: Use functional testing to verify features work as expected
- Unstable code or new features: Use unit testing for individual components and integration testing for modules working together
- Poor system stability after updates: Seek regression testing to make sure new changes didn't break existing features
- Performance and load issues: Use performance and load testing to evaluate speed and scalability
- Security issues: Security and penetration testing are commonly used across apps handling sensitive user data
- Hard-to-navigate user experience (UX): Pursue usability testing to determine how intuitive the application is for end users
- Low compatibility across devices: Compatibility testing can evaluate how good the app works on different browsers, devices, and OS versions
There is also the option to choose between manual and automated testing.
Is automated testing more expensive than manual testing?
As an investment, automated testing is pricier than manual testing but offers a lower cost-per-test over time as it can run the same scripts repeatedly, without human intervention. Conversely, manual testing entails lower upfront fee, but its cost grows linearly as the project grows, as every test cycle requires paid hours from QA testers.
So, for short-term projects or ones with shifting requirements, manual testing is considered a more economical option, whereas for maintenance and regression cycles, automated testing grants better return on investment.
The main distinction between these methodologies is that manual testing relies on human observation and interaction to identify defects, whereas automated testing uses software scripts to compare outcomes against predicted results.
Manual testing is best suited for exploratory testing, usability assessments, ad-hoc bug hunting, and minor hotfix verifications where script development would be inefficient. Automated testing, on the other hand, is primarily used for regression testing to make sure the new code does not break existing features.
How do businesses measure the effectiveness of software testing?
The effectiveness of the software testing is measured via:
- Code coverage: The percentage of the code that has been tested
- Defect density: The number of defects found per unit of code
- Test case effectiveness: The percentage of test cases that identify defects; helps prune redundant and ineffective tests
- Time to detect and fix defects: The time it takes to identify and fix software defects and software bugs
- Defect leakage: The number of bugs that "escaped" to production versus those caught during the testing phase