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.

Best Software Testing Firms

527 Companies-Rankings updated: October 17, 2026

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.

AI ×
  • AI Software Development Company USA

    Tabdelta is a global AI-driven software development company in New York USA delivering innovative digital solutions to startups, SMBs, and enterprises across New York and worldwide...

    Top Services:

    • Software Testing
    • Software Development
    • AI Development
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • Shaping Digital Together

    CTGs comprehensive solutions help clients across all industries address the business, technology, and operational challenges that are escalating as the pace of change gets faster and the stakes get higher. Our solutions leverage the latest tools and methodologies to allow for greater technology and...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • IoT
    • Cloud Consulting
    • Show more
    Location
    Buffalo, New York
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    6 Projects Listed
  • Architecture-first. Production-ready.

    A full-cycle software engineering partner delivering high-performance digital products and scalable infrastructure. From rapid MVP development to enterprise-grade systems, we combine technical rigor with a product-first mindset to build software that scales as fast as your business does...

    Top Services:

    • Software Development
    • Mobile App Development
    • Software Testing
    • Staff Augmentation
    • AI Development
    • Show more
    Location
    Porto, Portugal
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    6 Projects Listed
  • Reliable Software Web and Mobile Application Development Outsourcing Company

    Nascenia uses cutting-edge technology to research, design, develop, and manage web and mobile-based apps. The company currently manages over 80 apps for clients all over the world and has been internationally recognized for its superior products and services inside and outside of the tech industry...

    Top Services:

    • Mobile App Development
    • Software Testing
    • AI Development
    • Software Development
    • Web Development
    • Show more
    Location
    Dhaka, Bangladesh
    Number of Employees
    50 - 99
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed
  • Crafting Custom Software & DevOps Outsourcing Solutions Since 2009.

    We build AI-accelerated software products faster, smarter, and built to scale. From LLM integrations to full-stack delivery, our teams ship real value. Together with you.Were Valletta.Software a software development company where human engineers and AI work side by side to build faster, smarter...

    Top Services:

    • AI Development
    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • Web Design
    • Show more
    Location
    Cospicua, Malta
    Number of Employees
    100 - 249
    Average Hourly Rate
    $44/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed
  • Simply Effective

    At ICTS, we focus on "Simply Effective" in each step of everyday operations and services, in the belief that a lean and effective solution is much better than a fancy one.We understand the struggles and challenges that each entrepreneur faces every day, so we always try to consult and propose the most...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • Software Testing
    • eCommerce Development
    • Show more
    Location
    Hanoi, Vietnam
    Number of Employees
    Under 49
    Portfolios Count
    6 Projects Listed
  • Software Development And AI Solutions For Businesses

    Agmis delivers AI and custom software solutions for manufacturing, retail, logistics, and healthcare. Since 2007, we've served 50+ countries with computer vision for quality control, PPE detection, warehouse management, and production planning...

    Top Services:

    • AI Development
    • Software Development
    • Software Testing
    • CRM Consulting
    • Show more
    Location
    Kaunas, Lithuania
    Number of Employees
    50 - 99
    Minimal Budget
    $25,000 - $50,000
  • Digital Health Product Development, Data Analytics, and AI

    Estenda is a custom software development, data analytics, and AI firm focused on digital health. For 20+ years, Estenda has created award winning innovate software solutions for our customers combining our deep understanding of digital health, software development, data analytics, and AI expertise...

    Top Services:

    • Software Development
    • AI Development
    • Cloud Consulting
    • Product Design
    • Big Data Analytics
    • Show more
    Location
    Wayne, Pennsylvania
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Portfolios Count
    5 Projects Listed
  • Reliable AI, Web & Mobile App Solutions for Growing Businesses

    WanderCode helps businesses build reliable digital products through AI development, web and mobile app development, UI/UX design, DevOps, software QA, and product development. We focus on practical solutions that solve real business problems, improve workflows, and support long-term growth...

    Top Services:

    • eCommerce Development
    • AI Development
    • Mobile App Development
    • Software Development
    • Software Testing
    • Show more
    Location
    Sheridan, Wyoming
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
  • AI Consultancy & Tech Services

    Aimprosoft is an AI consultancy and technology transformation partner helping organizations navigate the complex journey to AI integration. By enabling AI-assisted software development lifecycles for clients, we empower them to deliver products >30% faster without adding headcount...

    Top Services:

    • AI Development
    • Software Development
    • Web Design
    • eCommerce Development
    • IoT
    • Show more
    Location
    Nicosia, Cyprus
    Number of Employees
    250 - 499
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    9 Projects Listed
  • Complex custom software and AI-powered products built around your business.

    Rocket Systems builds custom software and AI-powered products around real business needs. We take time to understand each clients goals and choose the right technical approach, creating reliable and scalable solutions with a strong focus on quality and long-term value...

    Top Services:

    • Web Development
    • Web Design
    • IoT
    • AI Development
    • Mobile App Development
    • Show more
    Location
    Sacramento, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed
  • AI Full-Stack Engineering, Automation, Machine Learning & Enterprise AI Integration

    NextGen Coding Company builds custom, cutting-edge software solutions. Our mission at NextGen Coding Company is to lead the technological revolution with innovative solutions and cutting-edge expertise. We aim to empower businesses and individuals by delivering transformative digital services in Artificial...

    Top Services:

    • AI Development
    • Software Development
    • Web Development
    • Software Testing
    • Blockchain
    • Show more
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Portfolios Count
    6 Projects Listed
  • Enabling Excellence

    iQuasar, a Northern Virginia tech leader with 20+ years of experience, specializes in Software Development, AI Integration, Web & App Development, Software Team Augmentation & More. We hold an A+ BBB rating, are verified on Clutch, and have a 97% Customer Satisfaction Rating by Dun & Bradstreet...

    Top Services:

    • Software Development
    • Software Testing
    • AI Development
    • Mobile App Development
    • Web Development
    • Show more
    Location
    Sterling, Virginia
    Number of Employees
    100 - 249
    Portfolios Count
    5 Projects Listed
  • The Right Software Can Change Everything

    Atomic Object is a top-rated custom software design and development consultancy. Our co-located, U.S.-based team works with executives to improve their bottom line by delivering new products, enhancing existing products, modernizing legacy products, and integrating AI into their software systems...

    Top Services:

    • Mobile App Development
    • AI Development
    • Software Development
    • Web Development
    • Product Design
    • Show more
    Location
    Grand Rapids, Michigan
    Number of Employees
    100 - 249
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    1 Project Listed
  • UK-based bespoke software development company

    Appdrawn is a multi-award winning bespoke software development company based in London and Barcelona. We specialise in a consultancy led approach, delivering high quality bespoke digital platforms, business systems, progressive web apps (PWAs) and mobile apps...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • UI/UX Design
    • IoT
    • Show more
    Location
    Watford, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed
  • Amazing-Artistic-Advancement.

    3AX shines as a top digital tech agency, leading in software, web development, and mobile apps. We craft strategies centered on your brand's success...

    Top Services:

    • Digital Services
    • Web Development
    • Content Marketing
    • Social Media Marketing
    • Software Testing
    • Show more
    Location
    Indianapolis, Indiana
    Number of Employees
    50 - 99
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    6 Projects Listed
  • Turning Ideas into Business Performance Since 2015

    Turning Ideas into Business Performance Since 2015...

    Top Services:

    • AI Development
    • Software Development
    • Web Development
    • Mobile App Development
    • Software Testing
    • Show more
    Location
    Bucharest, Romania
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    6 Projects Listed
  • A Full-Cycle Software Development Company

    Ingsoftware is a full-stack adaptive software development partner for growth-minded organizations...

    Top Services:

    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • Wearables
    • Software Testing
    • Show more
    Location
    Niš, Serbia
    Number of Employees
    100 - 249
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $10,000 - $25,000
  • Human-Centered Design For The AI Era

    Seoul-and-Bangkok design and development studio building UX/UI, web, mobile apps, and B2B SaaS platforms for enterprises. HeyHi turns complex problems into products people actually use with design and engineering under one team. Trusted by clients like CJ ENM and Deloitte, and recognized with Korea's 2024 ICT...

    Top Services:

    • UI/UX Design
    • Web Design
    • Web Development
    • Mobile App Development
    • Software Development
    • Show more
    Location
    Seoul, South Korea
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Leading AI-Powered Software Development Agency.

    Zignuts Technolab is a top-rated Web and On-demand Mobile App development company in the USA, Germany, and India. We strive to excel in the invention and development of the industry’s most advanced technologies. We will help you to make your digital dreams in on your hand...

    Top Services:

    • Software Development
    • Web Design
    • Web Development
    • AI Development
    • Mobile App Development
    • Show more
    Location
    Gandhinagar, India
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Portfolios Count
    1 Project Listed
  • Your Digital Partner for Project Success.

    Perimattic is a technology partner specializing in AI development, software development, cloud solutions, DevOps, MLOps, and enterprise technology services. The company helps startups, growing businesses, and enterprises build secure, scalable, and high-performance digital solutions...

    Top Services:

    • AI Development
    • DevOps Consulting
    • Cloud Consulting
    • Software Testing
    • Software Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
  • Every Zone. One Intelligence.

    A Texas-based AI engineering company helping mid-market businesses move AI agents from pilot to production. Built for the AI-native era of enterprise technology, we connect every zone of your business sales, service, data, operations into a single AI system that gets sharper the more it runs...

    Top Services:

    • Software Development
    • AI Development
    • Mobile App Development
    • Big Data Analytics
    • ERP Consulting
    • Show more
    Location
    Cedar Park, Texas
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Portfolios Count
    6 Projects Listed
  • Develop Beyond

    Ascendum is an award-winning global technology firm dedicated to delivering pioneering ideas and solutions that enrich our clients' customers experiences and business operations. Our clients come to us for new ideas and boundary-pushing solutions...

    Top Services:

    • Software Testing
    • Mobile App Development
    • Web Design
    • Software Development
    • AI Development
    • Show more
    Location
    Cincinnati, Ohio
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up
  • Custom AI Agents for business automation and smart communication, combining deep ML expertise with

    Springs is a service company specializing in building Custom AI Agents tailored to specific business goals. With deep expertise in Conversational AI, AI Agent development, and Business Automation...

    Top Services:

    • AI Development
    • Mobile App Development
    • Software Development
    • Software Testing
    • Cloud Consulting
    • Show more
    Location
    Vancouver, Canada
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed
  • Best-in-Class CRM Consulting

    Since 1996, Ascendix Technologies has been headquartered in Dallas, Texas. The company specializes in AI implementation, CRM consulting, and tailored software development. With auxiliary development hubs located offshore in Poland, Portugal, and Luxembourg, our company boasts a global presence...

    Top Services:

    • AI Development
    • CRM Consulting
    • Software Development
    • Mobile App Development
    • Managed Services
    • Show more
    Location
    Dallas, Texas
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    5 Projects Listed
  • Bespoke AI and software for startups and SMEs in the United States and Australia

    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
  • Your Partner in Growth: Enhancing IT & Non-IT Capacities with Digital Expertise!

    At i-Qode Digital Solutions, we're not just navigating the future of recruitment and staff augmentation; we're creating it. Our essence is innovation, driven by the synergy of cutting-edge technology and strategic talent solutions. We are ISO 27001 and ISO 9001 company...

    Top Services:

    • Staff Augmentation
    • HR Outsourcing
    • IT Services
    • Cloud Consulting
    • AI Development
    • Show more
    Location
    Pune, India
    Number of Employees
    Under 49
    Portfolios Count
    10 Projects Listed
  • Your Automation And AI Adoption Partner

    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
  • Simplifying life through innovation

    At 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
  • Ship fast. Built right.

    404 Friends is a software development studio from Georgia that designs, builds and ships websites, mobile apps, games and AI products end-to-end. We work in small, senior teams on fixed-price projects, taking products from first prototype to App Store release, hosting and ongoing support. Startups and growing...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • Web Design
    • AI Development
    • Show more
    Location
    Tbilisi, Georgia
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
  • A lifelong partner to solve any tech challenge together

    Hi there! We were expecting you!We are a nearshore software services and consulting company that partners with forward-thinking companies to achieve their business goals and accelerate growth in the digital age.We are seen as a lifelong partner for tackling any tech challenge...

    Top Services:

    • Software Development
    • Mobile App Development
    • IT Services
    • UI/UX Design
    • Web Development
    • Show more
    Location
    Montevideo, Uruguay
    Number of Employees
    100 - 249
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    1 Project Listed
  • Bespoke Web & Mobile Software Development.

    Empowering companies with skilled engineering talent so they can execute their digital transformation and product development strategies affordably and seamlessly...

    Top Services:

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • DevOps Consulting
    • IT Services
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    1 Project Listed
  • Your development partners for success.

    Zee Palm is a leading product development agency, specializing in the creation of Flutter-based solutions renowned for their scalability and robustness. Our expertise lies in crafting revenue-generating apps that stand the test of time, ensuring optimal performance and profitability for our clients...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • Product Design
    • Digital Services
    • Show more
    Location
    Lahore, Pakistan
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    5 Projects Listed
  • Vietnam's Premier Software Development Company

    NSC Software is a Vietnam-based software development and consulting company that provides senior-led engineering services to businesses seeking Western delivery standards. Its capabilities include software development, AI and machine learning, data engineering and analytics, quality assurance, technology...

    Top Services:

    • AI Development
    • Software Development
    • Big Data Analytics
    • Staff Augmentation
    • Software Testing
    • Show more
    Location
    Hanoi, Vietnam
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed
  • Innovative software solutions to your organisations most challenging problems.

    Microknot is a software development agency based in Sydney. We provide innovative software solutions to your organization's most challenging problems...

    Top Services:

    • Software Development
    • Mobile App Development
    • Software Testing
    • IT Services
    • AI Development
    • Show more
    Location
    Bella Vista, Australia
    Number of Employees
    Under 49
    Average Hourly Rate
    $500/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    5 Projects Listed
  • Engineering Intelligent & Scalable Solutions.

    VentureDive is an award-winning custom software development company dedicated to spearheading digital transformations for Fortune 500 companies across BFSI, CPG/retail, healthcare, transportation, logistics, and QSR industries through its expertise in the realms of Fintech, Data & AI, HealthTech, PropTech...

    Top Services:

    • AI Development
    • Software Testing
    • Software Development
    • Mobile App Development
    • Big Data Analytics
    • Show more
    Location
    Mountain View, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
  • We build products like ventures because we desire to get things right.

    appleute is a venture-driven product studio...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    • Product Design
    • Web Design
    • Show more
    Location
    Hammelburg, Germany
    Number of Employees
    Under 49
    Average Hourly Rate
    $105/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed
  • We turn ideas into real life fintech products

    ilink is a fintech and custom software development company. We help startups, financial businesses, and enterprises launch new digital services, blockchain products, modernize complex platforms, and build secure technology designed for long-term growth...

    Top Services:

    • Blockchain
    • IoT
    • Mobile App Development
    • Software Development
    • AI Development
    • Show more
    Location
    Dubai, United Arab Emirates
    Number of Employees
    50 - 99
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    8 Projects Listed
  • Build Smarter. Ship Faster

    A technology partner for modern business building and AI-Powered software, scalable SaaS platforms, and intelligent automation systems...

    Top Services:

    • Web Design
    • Web Development
    • IoT
    • AI Development
    • Software Development
    • Show more
    Location
    Newark, Delaware
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Portfolios Count
    8 Projects Listed
  • Build Intelligent Systems Lead The Future Together

    Founded in 2016, Relipa is a premier software development firm operating in Vietnam and Japan. We empower businesses globally with our engineering-first mindset, delivering high-quality, agile IT development services including AI, Blockchain, Web, and Mobile App solutions. Backed by an ISO-certified process...

    Top Services:

    • Software Development
    • Blockchain
    • Mobile App Development
    • IT Services
    • Software Testing
    • Show more
    Location
    Hanoi, Vietnam
    Number of Employees
    50 - 99
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    5 Projects Listed
  • AI Transformation & Tech Staff Augmentation Company

    Inument is a global software engineering and AI solutions company, specializing in staff augmentation, custom software development, and AI/ML services. We deliver innovative solutions across industries like healthcare, fintech, and e-commerce with 25+ years of combined industry experience...

    Top Services:

    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • Software Testing
    • AI Development
    • Show more
    Location
    Singapore, Singapore
    Number of Employees
    50 - 99
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed
  • AI & Software Development Partner

    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
  • Great performance with SplashDev: Reliable Dynamics 365 solutions!

    SplashDev recommends and implements the best CRM and ERP solutions on the market with solution stack on the Microsoft Dynamics 365 platform. Those are our strong drivers that help us set new standards when it comes to providing the greatest possible service to our clients...

    Top Services:

    • Software Development
    • Software Testing
    • CRM Consulting
    • ERP Consulting
    • IT Services
    • Show more
    Location
    Bucharest, Romania
    Number of Employees
    Under 49
    Average Hourly Rate
    $1000/hr
  • Engineering Mission-Critical Web Applications & AI Solutions.

    Digital Pixora is an elite software engineering and digital transformation agency. We don't just build websites; we engineer high-performance web applications, complex B2B SaaS platforms, and custom Artificial Intelligence (AI) solutions tailored for enterprise growth. Our core expertise lies in Rea...

    Top Services:

    • Software Development
    • AI Development
    • Web Development
    • UI/UX Design
    • Web Design
    • Show more
    Location
    Toronto, Canada
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed
  • You Need. We Know How. We Deliver.

    E-GROWTH is a Greek technology company building custom software, web apps, e-commerce platforms, API integrations, automation and AI solutions for businesses in Greece and international markets...

    Top Services:

    • Mobile App Development
    • Software Development
    • Software Testing
    • Web Design
    • Web Development
    • Show more
    Location
    Trikala, Greece
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Your trusted development partner, available worldwide

    Building the future of our clients with innovation and expertise...

    Top Services:

    • Software Development
    • Web Development
    • Staff Augmentation
    • IT Services
    • eCommerce Development
    • Show more
    Location
    Szeged, Hungary
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Portfolios Count
    4 Projects Listed
  • Best Custom App & AI Development Agency in UK

    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
  • Software development | HealthTech & Security experts

    TechMagic - a full-cycle development company with strong Healthtech expertise that provides end-to-end software development services to businesses.With a proven track record of 200+ successful projects, 10+ years on the market, and 300+ experts onboard, TechMagic is your trusted partner...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Cybersecurity
    • IT Services
    • Show more
    Location
    Lviv, Ukraine
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    5 Projects Listed
  • AI-driven custom software development for complex, high-growth industries.

    NEKLO is an international custom software development partner. Since 2008, weve specialized in building and scaling digital products for high-stakes industries, including Healthcare, Fintech, Energy, and Construction...

    Top Services:

    • AI Development
    • Software Development
    • Mobile App Development
    • Product Design
    • Software Testing
    • Show more
    Location
    Burlingame, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
  • Secure by Design

    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

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
128,417+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
48%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
527

Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.

See how rankings and monetization work.

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 Â