List of Best Functional Regression Testing Service Providers
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We’re on a mission to ensure bug-free user experience for everyone in the world. Our focus is on providing flexible QA and QC solutions for game publishers and developers. From hyper-casual to complex AAA projects. We are building a future where things are working as intended. SnoopGam ... read more about SnoopGame QA
< $25/hr10 - 492013Kharkiv, Ukraine -
Testers HUB is a Software Test Consulting and Services company established in AUGUST 2012. We help our clients worldwide to plan their test investments and manage critical testing processes to reduce the total cost of producing quality software. Testers HUB has made a benchmark itself as a Software testing organization ... read more about Testers HUB
< $25/hr10 - 492012Pune, India -
Since 2005, Keytorc Software Testing Services has been assisting its customers to manage their critical software testing processes to reduce the total cost of producing high quality systems. Keytorc uses a risk-based prioritization approach to get to the right answers and overcome the top reasons for failure. The ... read more about Keytorc Software Testing Services
$50 - $99/hr50 - 2492005Istanbul, Turkey -
AMQA Experts is a software testing company. Our expertise is multifaceted as we have experience in various testing services. We are enhancing the Quality of Software products and delighting our Clients globally for the last 10 years. We make our Client's Software “a World-Class Product” using our well-o ... read more about AMQA Experts
< $25/hr10 - 492010Indore, India -
QANxt offers complete Software Testing services for global enterprises and ISV’s across industries. We specialize in providing end-to-end application testing solutions, setting up Testing Center of Excellence (CoE’s), Niche testing needs on latest tools, QA strategies at optimal cost, desired Quality a ... read more about QANxt
NA10 - 492015Anaheim, California -
TestPRO provides Software Testing Services: - Testing as a managed services - Agile Coaching Program - Outsourcing Services - ISTQB Courses. - Software Testing Training TestPRO offers Function, Performance, Security, and Automation Testing services as well. 1️⃣First Software Testing C ... read more about TestPRO
NA10 - 492011Nasr City, Egypt -
Established in 2002 in New Boston, MA - Quality Matrix has earned a reputation in a dynamic global marketplace, by partnering with their clients in achieving technology roadmaps and business transformations. Quality Matrix is committed to providing highly technical talented QA resources to clients at competitive rates ... read more about Quality Matrix Inc
NA250 - 9992002Westborough, Massachusetts -
We have strong expertise in delivering cost-effective, value-added testing services to our clients worldwide. PrimeQA has vast of experience in providing Testing services such as Testing Consultancy, Test Automation, Specialized Testing Services and Managed Testing Services.
$25 - $49/hr2 - 92020Ahmedabad, India -
Quality Krafters is a leading player in the realm of software testing and quality assurance. Established with a profound commitment to ensuring software excellence, we've carved a niche for ourselves through relentless dedication, innovation, and a customer-centric approach. Our journey is a testament to our unwave ... read more about Quality Krafters
$25 - $49/hr2 - 92021Mumbai, India -
Vihat Technologies, based in Ahmedabad, is India’s leading software testing company. It’s a rapidly growing pure-play offshore software testing services company in India aiming to help its clients get their software applications validated efficiently and effectively through its full range of services for so ... read more about Vihat Technologies
NA2 - 92020Ahmedabad, India -
Razorcat Development GmbH creates test tools for software development of embedded systems since 1997. The unit and integration test tool TESSY is certified to IEC 61508 and ISO 26262 and it already supports many software projects in all industrial branches in their verification of safety critical and high-quality softw ... read more about Razorcat
$50 - $99/hr10 - 491997Berlin, Germany -
Infostretch is a pure-play digital engineering services firm focused on helping companies accelerate their digital initiatives from strategy and planning through execution. We leverage deep technical expertise, Agile methodologies and data-driven intelligence to modernize systems of engagement and simplify human/tec ... read more about Infostretch
$200 - $300/hr1,000 - 9,9992004Santa Clara, California -
OnPath Testing helps organizations ensure their software works as expected and as designed, by following rigorous software quality assurance (QA) practices. We’ve tested software on a multitude of platform and mobile device combinations, within teams following a variety of development methodologies, using a pleth ... read more about OnPath Testing
$50 - $99/hr10 - 492009Boulder, Colorado -
Mammoth-AI enables businesses to launch and support digital assets at scale by delivering repeatable actions through engineered automation.Get access to a dedicated team of 100+ engineers, knowledgeable professionals with domain expertise, and a state-of-the-art testing lab.Your product represents your business on a gl ... read more about Mammoth-AI
< $25/hr50 - 2492017Princeton, New Jersey -
We improve the quality of IT products worldwide. Arrange a free check-up now. We determine the level of your software quality assurance by analyzing and evaluating all risks.Improve software quality in all project phases through agile software testing. In a free check-up, we evaluate possible risks for you an ... read more about andagon
$100 - $149/hr50 - 2492001Cologne, Germany -
Parasoft provides innovative tools that automate time-consuming testing tasks and provide management with intelligent analytics necessary to focus on what matters. Parasoft’s technologies reduce the time, effort, and cost of delivering secure, reliable, and compliant software, by integrating static and runtime an ... read more about Parasoft
$50 - $99/hr50 - 2491987Monrovia, California -
Mtest Labs is a Digital Application Testing Agency which offers premium Web, Mobile Device / Apps Testing services.We work with Mobile Tech Startups, Tech Houses in providing Mobile Apps Testing services. We aim to deliver the Test Results within 24 - 48 hours as per your requirement with no additional ... read more about Mtest Labs
$50 - $99/hr2 - 92011London, United Kingdom -
We are the US based QA firm built to deliver required software quality level to our clients. Software Brush provides a broad range of outsourced software testing services with additional specialization on software quality assurance consulting and audit. Web Testing Mobile Testing QA Consulting & Audit ... read more about Software Brush Inc.
NA2 - 92019Laguna Beach, California -
Adaps Btranse -consulting
NA250 - 999Melbourne, Australia -
Spawn Point is a Mobile Game Testing studio for Game Developers. We provide the best games to the end-users. In particular, Spawn Point works to provide quality testing services so that the game developers get hooked with the best experience behind the development stages (during the alpha and beta stages) and after the ... read more about Spawn Point Gaming
< $25/hr10 - 492019Indore, India -
At Testing4Success we believe that QA should mean more than a simple check in the box. The fruits of your labor deserve to be released as the highest quality product possible. Comparing one outsourced QA company to another, may initially seem like comparing apples to apples. As you can see from our website, not al ... read more about T4S - Outsourced QA and Testing Professionals
$25 - $49/hr2 - 92000Vancouver, Canada -
QAonCloud offers fully managed and jointly managed testing services for your web, mobile, and desktop apps. QAonCloud’s team specializes in providing manual and automated testing solutions to customers across the globe. Our prime objective is to deliver high-quality testing solutions to our clients by adopting ad ... read more about QAonCloud - Software Testing Services
< $25/hr10 - 492015Chennai, India -
Qark1 is a leading Software Testing & Quality Assurance Services Consultancy “Be a yardstick of quality. Some people aren’t used to an environment where excellence is expected.” We’re not product providers, we are problem solvers. We are a part of your company, integrated in your product&rsq ... read more about QArk1
$25 - $49/hr2 - 92020Nicosia, Cyprus -
Choucair Solutions Inc is a software quality assurance company, offering testing solutions that helps our clients overcome barriers such as faults and failures that impact the brand reputation, or misalignment between the business and IT, or inappropriate time to market or lack of real time monitoring of customer exper ... read more about CHOUCAIR SOLUTIONS INC
$50 - $99/hr2 - 9Toronto, Canada -
Prime QA Solutions was started in 2020 as the Software Testing Agency. We are your easily-managed dedicated Software Testing Partners across the globe. We're here to make sure your solution is tested thoroughly, on time, and within budget. We continue to expand, and our expertise continues to grow, but our goal ... read more about PrimQA Solutions
NA2 - 92020Ahmedabad, India -
Established in 2022, specializing in consulting, sales, implementation, research and development, and integration of network security related software and hardware. We are not only committed to providing users with professional, comprehensive and customized network security solutions, but also actively disseminate netw ... read more about Zunping Network Security Technology Co. LTD
< $25/hr2 - 9Shenyang, China -
We are a team of young and dynamic talent that focuses on holistic project management, software development,quality assurance and testing services. We are working with Global customers to deliver excellent end-user experience and top class software products for our clients.
$25 - $49/hr2 - 92017Dubai, UAE -
We are a software house based in Turin. Our focus is to be constantly up to date with the last cutting-edge technologies in order to give our customers the best business solution possible and tailor it to their needs. Our services include mobile apps, web apps, e-commerce, social integration, testing and quality assura ... read more about Etiqa srl
$50 - $99/hr10 - 492014Turin, Italy -
Software Quality Systems (SQS, SA) is a provider of QA and Testing solutions. The services offered by SQS include product quality assessment, process improvement, test automation, independent verification and validation plans design and implementation and test outsourcing. The customers of SQS are key players in ... read more about SQS - Software Quality Systems
$50 - $99/hr50 - 2492001Brussels, Belgium -
We specialize in different types of software testing services, are skilled in using various testing tools, working with modern mobile, desktop and web technologies. Our high competence along with deep knowledge in IT allow us to be one of the best among quality control companies to satisfy our numerous customers from a ... read more about SO Testing & Training
$25 - $49/hr10 - 49Auckland, New Zealand -
Inspired by the success of Passwerk in Belgium and Specialisterne in Denmark, Focus was founded in 2014 to harness the unique talents of individuals on the autism spectrum into IT careers. Focus provides a service within British Columbia that contributes to the vision of normalizing neurodiversity in the workplace. ... read more about FOCUS PROFESSIONAL SERVICES INC
$50 - $99/hr10 - 492014Vancouver, Canada -
UTrust is a leading software testing and quality assurance company based in the Middle East and North Africa (MENA) region. The company provides manual and automation testing solutions across all major IT services including web and mobile applications, IT infrastructure, business software, cloud services, IoT devices, ... read more about UTrust
$25 - $49/hr50 - 2492015Nasr City, Egypt -
Testing Genez, powered by Teknotrait Solutions Pvt. Ltd., is an IT Consultancy and Outsourcing company headquartered in Bengaluru, Silicon Valley of India. Our mission is to deliver end to end IT Solutions across the globe by leveraging through latest technologies and bringing a positive social change. We sp ... read more about Testing Genez
NA10 - 492017Bengaluru, India -
KefiQA is a software testing company, which provides extensive list of independent software testing services to the customers around the globe. With a motto to offer high quality cost-effective software testing services to our clients , we present a team of highly experienced and 100%ISTQB certified team of professiona ... read more about KefiQA
< $25/hr50 - 2492017Toronto, Canada -
Ten10 is the UK’s leading software testing consultancy. Through a rigorous and creative approach to software testing - delivered through a combination of best-in-class technology and talented, passionate experts - we give our clients the confidence to embrace innovation and business transformation, redefining ... read more about Ten10 Group
$50 - $99/hr250 - 9992004Leeds, United Kingdom -
tiQtoQ is an independent software testing and quality assurance company that prides itself on providing innovative testing solutions for our customers and partners. At tiQtoQ we instil a culture that ensures the customer is at the heart of everything we do; our company is built upon this principle. tiQtoQ’s ex ... read more about tiQtoQ
NA10 - 492016Cardiff, United Kingdom -
At our core, we are dedicated experts in delivering unparalleled QA testing and consultancy services tailored to businesses of every scale. With a steadfast commitment to excellence, we empower organizations to achieve optimal software quality and performance. Our team of seasoned professionals combines industry-leadin ... read more about ReliaTest
$25 - $49/hr2 - 92023Lahore, Pakistan -
Trajectus provides different models of service including offshore, onshore or a blended solution in order to provide our clients with a cost-effective delivery model. Several clients have utilized our services to augment their IT teams while others rely upon us as their sole IT provider, allowing them to focus on growi ... read more about Trajectus
< $25/hr50 - 2492015Southfield, Michigan -
Qualysec Technologies is a leading Cybersecurity company. Focused on various aspects of the information security industry, including Web and Mobile application Penetration testing, Source code review, IoT, and Cloud Security with other services that assist our customers in increasing their security levels.Since 2020, Q ... read more about Qualysec Technologies Pvt. Ltd.
< $25/hr10 - 492020Bhubaneswar, India -
Precise Testing Solution Pvt. Ltd. is a pure software company registered in 2012. Its ISO 9001:2008 and 27001:2013 Certified software testing company. We are STQC and Cert-In empanelled agencies,We are the only company which is empaneled by two government& ... read more about Precise Testing Solution
$25 - $49/hr50 - 2492012Noida, India -
Keytorc provides management and technology consultancy services that ensures the high quality of software products. In addition to delivering internationally accredited trainings, Keytorc contributes greatly to the software testing industry with conferences, books and sectoral reports it publishes. Keytorc has been the ... read more about Keytorc Software Testing
$25 - $49/hr50 - 249Istanbul, Turkey -
At Zeus, we believe that quality make everything stand-out from the rest. Its even more important when we have something that many will use - be it a mobile app or an e-commerce site.Our team of experienced and competent resources are skilled and qualified to do just that - identify issues and get it fixed before custo ... read more about Zeus Testing Solutions
NA2 - 9London, United Kingdom -
Testhouse is a global thought and market leader in Software Quality Management, Application Lifecycle Management (ALM) and DevOps providing on-site, on-shore and off-shore functional and non-functional test services on many continents since 2000. Our offering includes outsourced and on-demand expertise in strategi ... read more about Testhouse Ltd
< $25/hr250 - 9992000London, United Kingdom -
We provide CTOs, VPs, and Directors of software engineering premium staff augmentation services and can help in the following ways: Fast, Easy Recruiting & Onboarding gets devs on your team in 2 - 3 weeks without subjecting your team to lengthy screening and interviewing distractions Premium, Team-Based Tal ... read more about Admios
"The Only Crew I Trust"Matt Attaway, Chief Technology Officer at at Off the Grid$50 - $99/hr50 - 2492005San Francisco, California -
Our mission is to ensure the best quality software. We audit, plan, and implement test processes. We carry out functional, non-functional tests and automate them.We create our own proprietary tools and solutions. We use Artificial Intelligence to keep your software stable and safe. We take on the most difficult testing ... read more about B2Bnetwork
< $25/hr50 - 2492016Warszawa, Poland -
Qualitica tests desktop applications, mobile applications, websites and cloud services. Levels of testing: ● Functional testing ● Testing automation ● Performance testing ● Security testing ● Compatibility testing ● Usability testing Our process: ● Analysis of ... read more about Qualitica
< $25/hr50 - 2492019Sheridan, Wyoming -
Get clean, stress-tested code. Service so good, it’ll make you smile. And a team that will never leave you hanging. How do we differ from other design to code companies? Two important ways: 1. Quality Assurance and Testing We have a 3-layered intensive testing and quality assurance p ... read more about ReliablePSD LLC
"Reliable company with reliable chief"Albína Kaškarová$50 - $99/hr10 - 492014Athens, Georgia -
We help Product IT companies to quickly release the product. Our team introduce the synergy of freelance experience and large enterprises by selecting the right team and taking into account the individual needs of each project.
$50 - $99/hr10 - 492017Bydgoszcz, Poland -
Aspired helps its clients hire and build a remote autonomous dedicated team by carefully selecting the elite from the global pool of talent. Our team of experts identifies new & emerging tech hubs and pair our top engineers with teams engaged in solving thought-provoking problems. We provide complete opera ... read more about Aspired
"Outstanding service, exceeded my expectations. Highly recommended!"Tim Rice, Co-founding CEO at Coin Metrics at Coin Metrics$25 - $49/hr50 - 2492020West Palm Beach, Florida -
QA Experts, Practitioners, Trainers. Our team is experienced with everything from small and agile projects to huge multi-country transformations. All of this experience is here to help you make testing more efficient and effective. We are here to help you minimize project risks, control costs and reduce time to ... read more about Krone Consulting s. r. o.
NA10 - 492016Bratislava, Slovakia -
Sistema Technologies, Inc. is a global provider of IT enterprise solutions and professional services. IT Staff Augmentation and IT Project Management are our strengths and core competencies. Sistema believes in low overhead, streamlined operations and a commitment to customer service. Sistema is a HUB Certified comp ... read more about Sistema Technologies, Inc.
$50 - $99/hr50 - 2492002Austin, Texas
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Get a Personalized ShortlistRegression Testing vs. Unit Testing: Key Differences
Feature | Regression Testing | Unit Testing |
---|---|---|
Definition | Verifies that existing functionalities haven't broken due to code changes or new features. | Tests individual units of code (functions, modules) in isolation to ensure they work as expected. |
Focus | System behavior after changes, preventing regressions. | Individual code units and their correctness. |
Timing | Performed after any significant code change (bug fix, new feature) before deployment. | Usually conducted early in the development cycle, after code is written. |
Test cases | Designed to cover existing functionalities that changes might impact. | Focused on specific code units and their expected outputs for various inputs. |
Tools used | Automated testing frameworks and regression testing tools. | Automated testing frameworks, mocking frameworks. |
Outcome | Identifies regressions caused by changes and ensures existing functionality remains intact. | Determines if individual code units function as expected, catching bugs early in development. |
Example | Testing if a new login feature affects existing user functionalities like profile management. | Testing if a function calculating shipping costs produces the correct output for different addresses and weights. |
Frequency | Conducted regularly, especially after code changes, updates, or system enhancements, to detect regressions. | Typically performed whenever a unit of code is written or modified to ensure the correctness of the code. |
Dependencies | Dependent on the accuracy and completeness of the regression test suite to provide reliable results. | Dependent on the correctness and effectiveness of the unit test cases to ensure proper functioning of the code. |