List of the Best Software Testing Companies & QA Firms
QA Mentor is multi-awards winning a CMMI level 3 and ISO-certified leading software testing company founded in 2010 with headquarters in New York, USA. The company excels in delivering superior Software Quality Assurance (QA) with their 30+ QA testing services that are availed by clients like Bosch, Morgan Stanley, Ama ... read more about QA Mentor"Very professional and solid"Lindsey Allard, Co-Founder at PlaybookUX< $25/hr250 - 9992010United States, India
QualityLogic is a US-based software testing service providing turnkey testing and quality assurance solutions like regression testing, onshore automation testing, website testing services, interoperability testing, and more since 1986. Their talented and experienced QA team has served premium clientele, including HP, A ... read more about QualityLogic"Thorough and professional user acceptance testing services for software implementation"Jennifer Dunn, Co-Leader at Woligo$25 - $49/hr50 - 2491986United States, Australia
TestMatick offers end-to-end software test services to a diverse clientele. The company is a leading provider of QA testing and holds expertise in more than 20 types of testing services, such as mobile testing, functional testing, automated testing, usability testing, localization testing, and more."Successful QA Project"Mark Hamilton, Managing Director at Arthur Hamiltons LtdNA50 - 2492009United States, Ukraine
Founded in 2003, a1qa is one of the independent software testing and quality assurance (QA) companies. a1qa offers its services for all software types, including any PPAs or custom-developed software. The company has reputed certifications like ISO 9001:2015, PMI-ACP, and PMP certifications, and its premium clients inc ... read more about a1qa"Software testing professionals who helped us get ready for HIPAA certification"Shoshana Parker, Senior Computational Biologist at SBH Health System$25 - $49/hr1,000 - 9,9992003United States, United Kingdom
SHIFT ASIA is a leading software testing and quality assurance company based in Vietnam and was founded in 2016. With their team of QA experts and professional full-stack engineers, they specialize in offering a wide range of QA services, including ad-hoc testing, vulnerability testing, GUI testing, etc."Development & Testing for WordPress feature about task and Q&A management"YUSHI KODAMA, General Manager at Jienie Lab ASIA. Co., Ltd< $25/hr50 - 2492016Vietnam, Singapore
HikeQA is one of the top USA-based independent software testing services companies. This QA agency provides exceptional testing services, including Functional testing, performance testing, App testing, and Web testing. They provide 24/7 customer support and claim a money-back guarantee to dissatisfied clients.   ... read more about hikeQA"Very nice experience and quality of services is very good"Sonal Tripathi, manager at HikeQA< $25/hr10 - 492020India, United States
AllianceTek is an award-winning software company founded in 2004. They provide premium quality testing services to various sectors such as transportation, education, social networking, logistics, and many more. Their prime clientele includes Johnson & Johnson, Pacific Life, Saint Gobin, Genpact, and more. ... read more about AllianceTek"We are immensely happy with the work completed by AllianceTek Inc. "Kevin Labianco, Owner at United States Tour Operators Association$25 - $49/hr50 - 2492004United States, Canada
Packetlabs is a Canadian expert-level penetration testing services company. The company is a member of the Entrepreneur Organization, GIAC, and Retail Council of Canada. Their services include infrastructure penetration testing, Cloud penetration testing, application security testing, cybersecurity assessment, etc.$200 - $300/hr10 - 492011Canada, United States
Gearheart is a web development company that builds custom web and mobile applications for startups and mature companies. Focusing on complex long-term projects and functional solutions, we are fully responsible for the technical part, from planning a roadmap to deploying and maintaining applications. Our team does not ... read more about Gearheart"The Gearheart team met all our expectations and performed all the work we entrusted to them with all the responsibility and diligence."Javier Serrano$50 - $99/hr10 - 492012Ukraine, United States
QAlified is a software testing and quality assurance company specialized in solving quality problems by reducing risks, maximizing efficiency and strengthening organizations.An independent partner to evaluate software quality with experience in different technologies for any type of software."A Comprehensive Review of QAlified's Software Testing Partnership with Sprout"Jeremy Huffman, Director of Technology at Sprout$25 - $49/hr10 - 491992Uruguay
KiwiQA Services is an Australia based quality focused & knowledge-centric firm. KiwiQA Services, offers a wide range of testing solutions and services across industry domains, with a primary focus on risk management and implementable solutions. KiwiQA is dedicated to “Quality” to provide world-class tes ... read more about KiwiQA Services"Excellent QA Service"Scott Hunley, Devops Manager at Long Tail Technology< $25/hr50 - 2492009Australia
Testscenario, founded in 2014, is a one-stop shop for all of your QA needs and desires.We are a passionate Software testing firm that provides a wide range of customers with Quality Assurance Software testing services.Testscenario is a specialist QA and testing firm with more than 8 years of experience in the field"Testing a white screen error bug and its solution"Zahra Maher Al Namer, Product Manager at B8ak App$25 - $49/hr10 - 492014India
PFLB specializes in performance testing and performance engineering services. We help companies find and resolve performance bottlenecks such as ill-performing API calls or slow database queries.Our deep understanding of the space helps companies gain more confidence around launching apps in production. ... read more about PFLB"Load testing of our Electronic health record software"Sudhakar Akkala, General Manager at Napier Healthcare$50 - $99/hr250 - 9992008United States
Abstracta is a leading, pure-play and independent software testing services company founded in 2008 with offices in California and Latin America. We offer testing consultancy services centered on building custom, dedicated testing teams. Our teams have the added value of being able to leverage all of Abstracta’s ... read more about Abstracta"Great results and a knowledgeable team"Daniela, Business Development Associate at at wrnch$50 - $99/hr50 - 2492008United States
QAwerk is a software testing agency whose expertise is acknowledged by leading tech media like The Next Web and Tech Crunch. Since 2015, we've tested over 300 projects, helping businesses across North America, Europe, and Africa gain the world's recognition and users' love. We achieve this by co ... read more about QAwerk"QAwerk employees were always eager to help and delivered on their promises"Teo Lisitza, Software Engineer at at Evolv Technologies$25 - $49/hr10 - 492015Ukraine
QA Madness is an outsourcing QA company providing a full scope of software testing services. Covering manual and automated testing for mobile and web applications, QA engineers ensure that the software functions according to technical specifications, meets business requirements, and aligns with user preference ... read more about QA Madness"Amazing, would recommend! 10/10!"Dallas de Marr, Product Manager at Appfire< $25/hr50 - 2492013Poland
Bugraptors – Improve Your Chances of Success with QA Solutions Discover excellence in QA software testing services with BugRaptors, a renowned industry leader since 2016. Armed with ISO 9001:2018 and ISO 27001 certifications, our innovative approach to quality engineering solutions propels digital ... read more about Bugraptors"BugRaptors is an excellent partner for augmenting our test team"Brad DerManouelian, Senior QA Manager at Allego< $25/hr250 - 9992016India
We are a software testing company from Poznan, Poland. We housed QA Engineers to test client’s web or mobile application through quick Body & Team Leasing or Project-Based Outsourcing.We had a chance already to work with clients from the US, UK, Sweden, Dubai or Netherlands.And we worked for compani ... read more about Apphawks"Simple but very professional"Johan Dahl, CTO at at Barnebys$25 - $49/hr2 - 92017Poland
Why OKQA is more than just testing? We are not a company that comes and goes. We are a QA team that can become your long-term partner for on-demand software testing or ongoing QA tasks.We do not only provide manual and automation software testing services. We deliver comprehensive QA audits for e-commerce businesses ai ... read more about OKQA"Outstanding with exceptional attention to detail when it comes to testing"Leo J Barnett, Founder & CEO at Reelshot - Pro camera & video editor< $25/hr2 - 92020Ukraine
We at Codoid follow a holistic approach towards QA process and test automation. Our dream of becoming a Niche Software Testing Company 7 years ago has come to fruition in 2018. We are now rated as one of the top QA companies in India with global headquarters in Chennai.Being an Independent Software Testing firm our con ... read more about Codoid Software testing Company"Best automation software testing company in india with qualified team members"abdul ravoof, Head of Engineering at TakafulemaratNA50 - 2492012India
Krify is a bespoke mobile applications and software services provider based in UK, USA and India. Creating value for our clients is our passion and software technology is our forte. Our core competency includes Mobile App(Android, iOS, and Flutter), Web, Wearable app development and Digital marketing services. Krify ex ... read more about Krify UK Limited"The team helped me immensely, truly a gem of an organization to work with."Deepak Singla, Country Lead - Performance & Analytics Business at BMC Software< $25/hr50 - 2492005United Kingdom
A culture of innovation has enabled us to create cost-effective and highly scalable software products within budget and timeline for our clients which facilitate their progress and growth.Working as a partner with our clients, we are dedicated to developing effective outsourcing partnerships in order to reduce operatio ... read more about Devstringx Technologies Pvt Ltd"Good system development solution and good maintenance supports provided to the clients"Khounphon Philakone, IT Project Manager at TK Group/LaoWorld Public< $25/hr50 - 2492014India
Softengi is the software development company listed as one of the top 100 world's IT outsourcing service providers by IAOP. We use transformational tools, such as AI, AR & VR, Blockchain, IoT and gamification to provide businesses with the most innovative solutions. With our profound experience and ex ... read more about Softengi"Had a great experience, very professional and approachable."Igor Taranenko, Director at Eastern Radiotech$25 - $49/hr250 - 9992009Ukraine
All that we do is to deliver happy experiences for our clients and team with our quality Software Testing services. 16 years in business, 1600 successful projects, 400 customers and a team of 200 good people. We have built our legacy on the foundation of positive experiences and customer satisfaction. So much so that n ... read more about Crestech Software Systems Pvt.Ltd."CresTech is a excellent software testing company."sangram singh chauhan, Digital Marketing Specialist at 'confidential'$25 - $49/hr250 - 9992005India
PerfectQA Services is the industry-leading provider of software testing services. We are a team of highly skilled and experienced professionals who are dedicated to helping our clients achieve their testing goals. We offer a wide range of services, from traditional testing to cutting-edge automation solutions. We are c ... read more about PerfectQA Services"We're so glad to have PerfectQA as our Testing partner!"Nimesh Vora, Technical Consultant at Freshworks$25 - $49/hr10 - 492013India
Tesvan is an outsourcing company specializing in software testing and QA services. Being one of the biggest QA outsourcing companies in Armenia, Tesvan provides software testing and QA services to international and local companies.We plan, organize and maintain the whole process of software testing. Our professional te ... read more about Tesvan"Excellent team and always available !"Nina Antonyan$25 - $49/hr10 - 492019Armenia
Founded in 2010, Vervali Systems is a global software services firm dedicated to empowering our clients to develop products that make their customers' life easy, at scale.We serve product companies globally with our more than 200+ strong experienced team members of Quality Analysts, automation engineers, and mobile ... read more about Vervali Systems Pvt Ltd."A reliable and dependable team of developers"Pritha Datta$50 - $99/hr50 - 2492010India
At MeU-Solutions, we believe that a solution could bring the most success to a company. We offer cost-effective and high-quality service which employs the right people to create the right solutions in the right context. We invest much in our people in order to be the best because we understand that human resources alwa ... read more about MeU Solutions"MeU Solutions is good choice for me on performace testing"Hieu Nguyen, Test Manager at FPT Software< $25/hr50 - 2492016Vietnam
Ensuring that the value of software meets business expectations. Software Testing Bureau performs tests on software to validate that it is functional, safe and reliable. Based on a comprehensive approach, applying best practices, technology and guided by a specialized team of consultants with extensive experience ... read more about Software Testing Bureau"All the resources they've provided for us have been very competent and delivered great value to our projects."Ignacio Bazzano$25 - $49/hr10 - 491999Uruguay
QACraft was first established in 2016 and we are already growing from strength to strength. As our business continues to develop, the demand for our services means we are currently expanding our team to ensure that we are available for both short-term and long-term projects. QACraft provides several QA benefits a ... read more about QaCraft< $25/hr2 - 92016India
Testrig Technologies is a leading Software Testing Outsourcing company from Pune, India. Testrig provides Independent QA services worldwide for businesses of any size: from small startups to huge Enterprises. Our company has already been serving clients for many years to fulfill their Software Testing needs. Since t ... read more about Testrig Technologies< $25/hr10 - 492015India
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 - 2492015Egypt
We at Eminence Square (The testing hub) have great track record in handling outsourced testing assignments. We have an independent team of testers who have relevant expertise and experience in testing and can exercise the product 360 degree to ensure it not only meets functional requirements but also the non- ... read more about Eminence Square< $25/hr10 - 492014India
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 - 492019India
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 - 2492017United States
We at Bug Hunters ensure to deliver sustainable value for our customer by providing best class testing services. We believe in challenging the status and brining innovative ideas and technologies to address our client’s QA and Testing needs. Our skilled team is diligent in creating robust Test automation framewor ... read more about Bug Hunters< $25/hr10 - 492014India
We are a service provider company specializing in software quality assurance.To create top-notch solutions that are tailored to our client's individual demands, our team of professionals combines technical know-how with an eye for style.We are a service provider company specializing in software quality assurance. T ... read more about Tatylab Solutions< $25/hr2 - 92023United Kingdom
QA Notion software testing firm to grow startups, SMBs, and large enterprises with quality-driven solutions, we have extended ourselves to a trusted A++ grade software testing company.At QA Notion, we have a team of skilled QA testers. Our mission and vision are to deliver the best possible business outcomes that will ... read more about Qa Notion$25 - $49/hr50 - 249India
Clarion Technologies is a leading IT Outsourcing company with 3 state-of-the-art development centers in India. Our unique engagement model helps our clients leverage the best of outsourcing world - high-quality resources, world-class technical supervision, and infrastructure. Clarion has been innovation partner for sev ... read more about Clarion Technologies"The most bug-free code i have ever seen"Dr. Stephen Pearce, Co-founder at Xtivity Inc$25 - $49/hr250 - 9992000United States
Teksolto is a software services company working on Software Development and Products. Teksolto has its full-fledged active development center in Pune.Teksolto have adopted tangible compliance with Web Standards, leading software methodologies, architecture solution based on the customers needs, using best breed of tech ... read more about Teksolto Softwares"Teksolto, The solution at less cost "Stephane Chouapi S, Senior Technical Support Specialist at AXES Network< $25/hr10 - 492016India
Quality House provides testing services to IT companies of all sizes, having worked for both telecom giants and budding start-ups. The company has been providing behind-the-scene assistance and improving software quality since 2004. Having now conquered the Bulgarian market with two offices in Sofia and Plovdiv, &lsqu ... read more about Quality House Ltd< $25/hr50 - 2492004Bulgaria
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 - 9992000United Kingdom
Qualitrix Technologies (www.qualitrix.com) provides a complete portfolio of software quality engineering and application testing services through a flexible combination of its on-shore, off-shore and crowd sourced workforce. We integrate innovative technology solutions and user-centric testing to help you deliver a bes ... read more about Qualitrix Technologies Pvt Ltd< $25/hr50 - 2492015India
Appquarterz is a Software Testing and QA Company. We have completed over 200+ Projects and helped SMEs, Startups as well as enterprise companies in delivering quality engineering, AI Test Automation, Performance Engineering and Complete Continuous and Automated Test Services Performed throughout the Software Developmen ... read more about AppQuarterz< $25/hr10 - 492019India
With over 16 years of experience in the IT industry, Orient Software makes sure that all our services are top-notch and can fulfill all requirements - from web app and mobile app development, to AI, IoT, Machine Learning, and Data Science - we prioritize both quality and satisfaction from our global clients. Our succes ... read more about Orient Software Development Corp.$25 - $49/hr250 - 9992005Vietnam
TestCrew is Saudi based company specialized in delivering software testing services for organizations.We have intensive expertise in testing across various industries, corporate and government. We deliver service of quality, that makes you confident about your product. We provide valuable & smart feedback to satisf ... read more about TestCrew< $25/hr10 - 49Saudi Arabia
Easily managed QA team for growing dev. company
Get more from outsourced QA services – keep your software testing under control UTOR is an easily managed Software Testing company that helps growing product and development agile teams to implement their business ideas. We extend your in-house QA capabilities, automate where possible, bring in the rig ... read more about UTOR - QA services and Software Testing company"Delivered above and beyond my expectations, I look forward to our next engagement"Michael Kelly, CEO & Founder at Regenerative by Community$25 - $49/hr10 - 492016Estonia
Next Big Technology (NBT) is a premium Web & App Development firm established in 2009. NBT always uses the latest technologies for Website & Mobile App development. As an applications development company, we know how to build websites and apps that utilize proper design and programming to build products that ... read more about Next Big Technology(NBT)"Very helpful, always quick to reply and help with any problems."Andrew McIlravey, Marketing & Business Support Associate at Sonas Systems< $25/hr50 - 2492009India
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Frequently Asked Questions
What is software testing? Why is it important?
The process of examining a software product to ensure it performs its intended function and fixes the defects is termed software testing. Software testing helps developers build flawless software solutions free from data vulnerabilities. Performing rigorous software testing can improve software quality, increase user data security, enhance customer satisfaction, reduce bugs, and save money.
What are the benefits of software testing?
The benefits of software testing are identifying bugs, addressing the issues in the development cycle, ensuring the quality and the success of the product, accelerating the development process, securing compliance, reassessing the vulnerabilities, reducing the mitigated risk associated with software projects to enhance software reliability, improving the user experience, saving time and resources.
What are the different software testing methodologies?
The different software testing methodologies adopted by software testing companies are waterfall testing, sequential testing, agile testing, DevOps testing, continuous testing, spiral testing, risk-based testing, model-based testing, behavior-driven testing, and exploratory testing. Each of these testing methodologies leveraged by testing service companies has its own advantages and selecting the method is purely based on the project requirements.
What are the types of software testing?
The types of software testing are unit testing, integration testing, functional testing, non-functional testing (performance, security, compatibility accessibility, reliability, and usability testing), system testing, smoke testing, regression testing, user acceptance testing, exploratory testing, adhoc testing, and complete end-to-end testing.
There are two chief software testing types:
- Functional Testing
- Non-Functional Testing
1. Functional Testing:
Functional testing authenticates the software system against operational requirements as well as specifications. The main goal of functional testing is to verify critical system operations, basic usability, and accessibility while checking for error conditions.
The four main Functional Testing categories are as follows:
- Unit Testing: Unit Testing is a process that concentrates on individual components of the software to ensure that the system operates as expected. It assists software testers in identifying and fixing bugs and defects in the early stages of the development cycle, allowing coders to modify the code as needed.
Automated as well as manual testing can be conducted for unit testing. Testers can isolate groups of code and perform rigorous testing, which helps to identify unnecessary dependencies between the codes that should be eliminated. One of the most important benefits of unit testing is that it allows programmers to restructure existing codes to ensure the module functions flawlessly.
- Integration Testing: Integration testing logically assembles software modules in a group and tests them. This allows testing service providers to identify and resolve bugs hindering communication between the software modules. Integration testing also covers the impromptu changes made in the software, which might not have been unit tested.
Integration Testing checks data flow between software components. Two approaches are available - Big Bang or Incremental. It analyzes the interface link between the login and home pages to ensure the user is directed to the software's main page.
- System Testing: System testing validates the complete application. It ensures that the end-to-end functioning of the system meets the quality standards set by the client. System testing is generally performed by independent software testers who haven't contributed to the development of the software in any way. This ensures that the results and reports delivered are accurate and unbiased.
Automated software testing involves analyzing the outcome of every input in the system to ensure that the desired outputs are achieved and that users have a positive experience. In addition to validating business requirements, system testing verifies the application's architecture.
- Acceptance Testing: Acceptance testing, also known as User Acceptance Testing (UAT), is performed to assess whether the system is ready for deployment. Clients or end-users do these tests to ensure the integrity of the application. During software development, there are chances that specific user requirements may not be adequately communicated to the developers. This may result in developing a highly different system from what the user requested.
Acceptance testing implements the following steps.
- Analysis of Client Requirements
- Distinguish Test Scenarios
- Formulating UAT Test Plans
- Test Cases
- Record Results
- Confirm Objectives
Once this testing procedure is completed and the system passes the tests, the program is moved to production.
2. Non-Functional Testing:
Non-functional testing verifies non-operational aspects of software, such as performance, usability, and reliability. It assesses readiness beyond functional testing.
For example, Non-functional Testing checks the number of people who can simultaneously log in to an application.
The key objectives of Non-functional Testing are:
- Increase usability, maintainability, efficiency, and other criteria of the product.
- Decrease production risk and cost.
- Optimize product installation.
- Accumulate metrics for internal R&D.
The following are the different software testing types of Non-functional testing modules:
- Installation: Installation testing detects and resolves any errors during software installation.
- Localization: Software testing companies assess the software for it to work according to the culture and setting of the deployment location.
- Performance: As the name suggests, performance testing is done to warrant the smooth working of the software.
- Recovery: Software testing companies must ensure that after any sudden crash in the system, it must be easily recoverable. This is analyzed during Recovery Testing.
- Reliability: Reliability testing checks the extent of the software system to which it can continuously perform specific tasks without hindrance.
- Security: This parameter defines how software is safeguarded against sudden or deliberate attacks from internal or external sources.
- Stress: Stress testing studies the limit of the software with an increased workload to which it can operate without lagging.
- Usability: This ensures the user can learn, operate, and communicate with the system effortlessly.
- Volume: The software testing service providers maintain the system's capacity to handle massive data without affecting its response time.
Apart from the above-mentioned, testing service companies also offer Automation testing, Compatibility testing, Compliance testing, Load testing, etc.
Businesses can also opt for additional software testing tools to improve the implemented software testing techniques. Some popular software testing tools are A/B testing software, QA testing software, Beta testing software, etc.
What services do software testing companies offer?
Software testing companies offer end-to-end software performance testing services, which include functional testing, non-functional testing, next-generation testing, DevOps testing, data testing, security testing, compatibility testing, usability testing, integration testing, acceptance testing, sanity testing, and so on. They also do test consulting and specialized testing services customized as per the project. All these testing techniques have different goals and are carried out by the testing service companies to verify whether the software performs as expected and meets the end users' requirements.
Can a software testing company help to improve the performance of my software?
Software testing companies definitely help in improving the performance of your software. Quality assurance and software testing are carried out to maintain the quality of the software, improve development techniques, reduce development time, and reduce development costs. Better quality also assures customer satisfaction, user experiences, scalability, and responsiveness. Testing the software on multiple devices also ensures compliance with the industry standards.
How long does it take for software testing companies to complete testing projects?
Software testing companies take around 4-8 weeks to complete testing projects, depending upon testing algorithms, methodologies and the tester’s experience. This time varies with the coding language used, complexity and type of software, technological tools required, number of tests to run, etc. Identification and removal of issues associated with security, functionalities, platform compatibility, responsiveness, loading speed, run-time errors, etc., can also impact the software testing time.
How to choose a software testing services company?
You must consider the following crucial factors to choose the software testing services company for your software testing project needs;
- Summarize your software testing project requirements, including purpose, location, technologies & tools needed, whether your project needs automated or manual testing, budget, deadlines, etc.
- Research on the latest global market trends in software testing solutions.
- To ensure proper communication throughout the project, you must decide the preferred location for the software testing companies to match your time zone.
- Refer to the list of software testing companies from renowned listing pages like GoodFirms.
- For a better selection, filter the list on various parameters like location, services, industry, company size, reviews, and others.
- Contact the chosen software testing service providers to discuss your detailed requirements, expectations, deadlines, budget, and other preferences.
Compare the shortlisted top software performance testing services companies based on their reviews, ratings, skills, experience, and pricing to choose the software testing experts for your project.
How much does it cost to hire a software tester?
Hiring a software tester might cost you anywhere from USD 7 to USD 40 per hour. The cost of hiring a software tester fluctuates based on factors like the experience and expertise of the tester, testing tools and technologies used, complexities of the software, type of tests required, location of the tester, and employment type.