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Functional Testing Services

Outsource Functional Testing Services

Get access to high-quality and comprehensive functional testing services at prices starting at just $20/hour

Does your software not render the output you intend to get? Is your software application having conformance issues with the specified requirements? If yes, then you need to make use of the complete suite of functional testing services from Outsource2india. We provide functional testing services that are focused on testing your software applications against the required specifications that meet the defined functionality criteria.

Functional testing is an integral element for boosting your software quality. If done accurately and by professionals, it can successfully support the functionality & the quality of your system while assuring its stability. At O2I, we will engage with you in all the phases of the software testing lifecycle to align your testing objectives with your business goals.

Functional Testing Services We Offer

The main reason enterprises carry out functional testing is to effectively deal with their applications' functionality and its usability. Functional testing is performed at different levels of the software development process. At Outsource2india, we deliver a comprehensive range of manual and automated functional testing services, which is performed in all the phases of the software development life cycle. The functional testing services we offer include -

  1. Integration Testing

    Integration Testing

    When you outsource software functional testing services to us, we will make sure that you get the best software testing services and support. Our system integration testing incorporates the best testing approach while making sure that all the individual modules, product setups, batch operations, reporting functionalities, and interfaces of an application-under-test (AUT) work well.

    By executing your software module through system integration testing, we can determine the degree of conformance of an application with the functional & the technical specifications document.

  2. Regression Testing Services

    Regression Testing Services

    At O2I, we incorporate the best of expertise and methodology to render a full range of regression testing services. Our functional testing experts can execute the testing in multiple application lifecycle models, including waterfall, iterative, agile, etc.

    We will validate the functionality of the software through repetitive iteration and continuous testing. This process ensures that no repetitive defects occur and that the application is fail-safe.

  3. Web Services Testing

    Web Services Testing

    We provide comprehensive web services testing solutions to clients from across the world. We have experience and expertise in testing using SOAP, REST, and WSDL.

  4. Cloud Testing Services

    Cloud Testing Services

    Our cloud testing services include data migration testing, functionality testing, integration testing, security testing, performance testing, compatibility testing, and multi-tenancy testing.

  5. Unit Testing Services

    Unit Testing Services

    Some of the key unit testing services we provide include statement coverage testing, branch coverage testing, decision coverage testing, condition coverage testing, and finite state machine coverage testing.

  6. Sanity Testing Services

    Sanity Testing Services

    Our sanity testing services include regression testing, exploratory testing, incremental integration testing, and unit testing, among others.

  7. Exploratory Testing Services

    Exploratory Testing Services

    We provide comprehensive exploratory testing services, including defect categorization, charter development, fixed time testing, test results analysis, and test results compilation.

  8. Network Testing Services

    Network Testing Services

    We provide an entire range of high-quality network testing services, including circuits or site turn-up services, routing policy change services, and firewall rules updating services, among others.

  9. Continuous Integration Testing Services

    Continuous Integration Testing Services

    Our continuous integration testing services include performance testing services, regression testing services, scalability testing services, and load testing services.

  10. Managed Testing Services

    Managed Testing Services

    Our managed testing services include defect management performance/load testing services, application security testing services, test case documentation, and test data management, among others.

  11. Mainframe Testing Services

    Mainframe Testing Services

    Services in this category include mainframe quality assurance, application testing, user acceptance testing, test environment management, integration testing, and system testing, among others.

  12. Managed Crowd Testing Services

    Managed Crowd Testing Services

    Our services include functional testing, compatibility testing ad-hoc testing, usability testing, automation testing, user acceptance testing, localized testing, performance testing, and regression testing, among others.

  13. ETL Testing Services

    ETL Testing Services

    Our ETL testing services include source to target testing, production validation testing, testing for application upgrades, metadata testing, data accuracy testing, and data transformation testing, among others.

  14. SOA and Web Services Testing Services

    SOA and Web Services Testing Services

    Our SOA and web services testing include functional testing, regression testing, performance testing, interoperability testing, vulnerability assessment, and portal and content management testing.

  15. Test Automation Services

    Test Automation Services

    Our services in this category include building test frameworks, manual to automatic migration, testing platform migration, auto script generators, and customized and phased automation support.

  16. Independent Verification and Validation

    Independent Verification and Validation

    Our IV and V services include load testing, regression testing, system acceptance testing, requirements management, mobile platform testing, compliance testing, and structural testing, among others.

  17. Functional Test Automation

    Functional Test Automation

    O2I's software test automation services comprise the best principles of script development and documentation. Our automation testing experts are adept at meeting the test automation goals and adopt the best automation frameworks while integrating the automation tools with the test management tools.

    Our automated functional testing will help you achieve the user acceptance you intend to accomplish. Overall, it will enable you to increase your productivity, performance, functional coverage and accuracy of your software development project.

  18. User-Acceptance Testing

    User-Acceptance Testing

    User acceptance testing (UAT) is the final block in the deployment of any software. Our UAT services encompass the on-going regression testing of the proposed and maintenance releases. The process includes business process flow, interfaces, alerts, reports, and batch processing.

    When you decide on outsourcing functional testing services to O2I, we will make sure that you get hassle-free services and that your applications meet the end-user expectations for functionality.

Functional Testing Tools We Leverage

We have 25 years of experience in providing functional testing services to our clients of various industries and verticals, including retail, IT, e-commerce, manufacturing, finance, healthcare, travel, e-learning, digital technology, etc.

At O2I, we have kept pace with the growing trend in relying more on test automation, agile and DevOps methodologies. That is why we use the best and latest functional testing tools. Some of the tools we leverage for functional testing are -

Junit QTP Ranorex Selenium SoapUI TestComplete TestingWhiz ToscaTestsuite WATIR

Our Functional Testing Process

To understand your business objectives and carry out functional testing of your software application, we adopt the following 6 steps -


Recognize your business requirements and testing goals


Identify the test input


Compute the predictable results using the test inputs


Design test cases as per the data identified in the above step


Execute the test cases


Analyze the real and computed results

Other Services You Can Benefit From

Why Choose O2I for Functional Testing Services?

Over the past two decades, Outsource2india has worked with clients across the globe, ranging from small businesses, eCommerce companies, healthcare organizations, and global enterprises to educational institutions. Each functional testing project is special to us, and we can quickly adapt to the modified deliverables & specifications. Outsourcing functional testing in software testing, including functional test planning, to us can give you access to the following benefits -

  • Cost-effective Functional Testing Services

    If your in-house frameworks are rigid, and your budgets are tight, then outsource functional testing to us. At O2I, we have inculcated an omnichannel approach to functional testing, allowing you to make a high performing application. We perform strict due diligence to identify KPI targets and provide robust functional testing services that meet all the SLAs. We also have the required skills, expertise, and infrastructure to provide you with world-class and creative functional testing services at highly affordable prices.

  • 360-degree Information Risk Management

    As the proud bearer of the ISO/IEC 27001:2022 certification, Outsource2india has successfully established a robust information risk management framework that can evaluate and address all types of security risk. Also, we stringently follow ISMS safety standards to guard information resources, including tools, systems, and people.

  • Multiple Delivery Centers

    We have four different offices and over 10 delivery centers spread across the globe. It allows us to provide better support and make ourselves accessible all the time. Furthermore, our customer support teams work across all the time zones and are readily available to provide their service at a convenient time.

  • Infrastructure

    Our offices have contemporary infrastructure and state-of-the-art equipment that is essential to provide the best functional testing services. We have independent Internet Leased Circuits, built-in IT redundancies, 200% power back up, etc. We also direct our team members to strictly comply with your industry’s regulations.

  • Experience

    We have a total experience of 25 years in providing functional testing services. Our functional testing experts exceed 30 in number. Furthermore, our collective management experience exceeds 100+ man-years. So, when you outsource functional testing solutions, including software functional testing services and functional testing in agile, to us, you can be assured of highly professional services.

  • Follow-up, Maintenance, and Assistance

    O2I is one of the leading providers of functional testing services in India. Our team of functional testing professionals is always updated with the latest tools & frameworks. When you collaborate with us, we will ensure proper functioning of your application through our services.

  • Faster TAT

    When you outsource functional testing services to us, a leading functional testing company, you will see a faster turnaround for all your software testing projects as well as reap all the benefits of functional testing. We leverage the expertise of our global delivery centers' resources to deliver the industry's best customer service through modern communication channels.

  • 24/7 Availability

    We will allocate a dedicated project manager once you outsource the functional testing project to us. Our project manager, call center executives, and the testing team is always accessible, and you can give them a quick call to raise any problem or discuss your inquiries.

  • Ease of Scalability

    We are a top functional testing service provider and have the vital resource competence and wherewithal, both in terms of know-how and infrastructure, to manage any surge in your business demands so that you pay only for the services you receive.

Client Success Stories

O2I Helped a Montreal Based IT Company by Testing its 130 Websites

O2I Helped a Montreal Based IT Company by Testing its 130 Websites

The client contacted O2I and wanted to test 130 websites in four different browsers. We executed security testing and freed their website from all vulnerabilities.

Read more
O2I Provided FTE Solution to a Reputed South African Product-based Company

O2I Provided FTE Solution to a Reputed South African Product-based Company

Read how Outsource2india helped its customer with project delivery issues by creating an innovative solution, which in turn also reduced their total costs incurred!

Read more

Outsource Functional Testing Services to Outsource2india


We thank Outsource2india for the wonderful job in helping us develop our program. Everyone was professional, excellent and hard working. Thanks to them, we were able to achieve our goal on time, and we look forward to continue working with them in the future.

Leading System Integrator, EMEA Region.
More Testimonials »

Outsource2india is a leading functional testing service providing company and has an extended suite of functional testers that can provide you with a high-level of functional testing services that can be customized according to your needs. We also provide a comprehensive range of other software testing services.

With around 25 years of experience in the testing domain, we carry in-depth software testing expertise and are results-oriented. Our functional testing services will allow you to leverage the power of a robust application that evolves with your business and lays the groundwork for long-term success. Approach us now for building and driving your application towards yielding a sustained impact on the market with the help of our functional testing services.

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