# Best Testing and QA Providers - Page 17

  *By [Adam Crivello](https://research.g2.com/insights/author/adam-crivello)*

   Testing and quality assurance (QA) is an integral part of the [software development](https://www.g2.com/categories/development-services) process, during which versions of a product are examined for bugs, design flaws, and performance quality as a whole. Many [mobile app developers](https://www.g2.com/categories/mobile-app-development) and [web developers](https://www.g2.com/categories/web-developers) offer testing and QA services as a standard part of the production lifecycle, but businesses can also hire a separate provider for software testing services. Product or development teams within an organization can also perform these tasks in house using [mobile app testing](https://www.g2.com/categories/mobile-app-testing) or [software testing software](https://www.g2.com/categories/software-testing).




  ## How Many Testing and QA Providers Products Does G2 Track?
**Total Products under this Category:** 361

  
## How Does G2 Rank Testing and QA Providers Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 700+ Authentic Reviews
- 361+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

  
  
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**Sponsored**

### DeviQA

DeviQA is a multi-award-winning pure-play software testing and quality assurance company with over 16 years of experience delivering enterprise-grade QA at scale. Founded in 2010, we have evolved into a globally recognized leader in software quality, trusted by 300+ clients across 40+ industries, from high-growth startups to Fortune 500 enterprises including Abbott, Tipalti, BP, Mimecast, and Compass. Our service portfolio covers the complete quality assurance lifecycle: functional, regression, end-to-end, integration, compatibility, and user acceptance testing; exploratory, UI/UX, accessibility, and localization testing; and specialized disciplines including performance, security, penetration, API, mobile, web, IoT, cloud, AI, and blockchain testing. We also build and implement test automation frameworks tailored to each client's tech stack and release cadence. Human-led and AI-powered, DeviQA operates a proprietary AI ecosystem that enables 40% faster QA cycles, reduces post-release defects by 30%, and lowers rework costs by up to 50% through shift-left defect prevention, without sacrificing the critical thinking and contextual judgment that only seasoned engineers bring. Clients choose DeviQA for the transparency of our engagement model: full IP ownership from day one, no vendor lock-in, no hidden fees, and no ghost workers. Engineers are ready to onboard within a single day and are 40% more cost-effective than equivalent in-house hires — each supported by the collective expertise of our 4,000-strong QA community and a 96% engineer retention rate. DeviQA holds ISO 9001:2015, ISO/IEC 27001, ISO/IEC 20000-1, SOC 2, ISO 13485, HIPAA, PCI DSS, and FDA 21 CFR Part 11 certifications, with ISTQB-certified engineers at Foundation, Advanced, and Agile levels. Our team also carries AWS Certified Security Specialty, CKA, and SAFe / Scrum Alliance credentials.



[Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=1057&secure%5Bdisplayable_resource_id%5D=1057&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=1057&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=96746&secure%5Bresource_id%5D=1057&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Ftesting-and-qa%3Fpage%3D17&secure%5Btoken%5D=7fbd3d6df81c0b18eb3aff5ed6ef9b27e4bf85ca2ed7241c7503c1a8c22d88df&secure%5Burl%5D=https%3A%2F%2Fwww.deviqa.com%2F&secure%5Burl_type%5D=company_website)

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    ## What Is Testing and QA Providers?
  [Development Services Providers](https://www.g2.com/categories/development-services)
  ## What Software Categories Are Similar to Testing and QA Providers?
    - [User Experience (UX) Design Services Providers](https://www.g2.com/categories/user-experience-ux-design-services)
    - [Android Developers ](https://www.g2.com/categories/android-developers)
    - [Cross-Platform Developers ](https://www.g2.com/categories/cross-platform-developers)
    - [Internet of Things (IoT) Developers ](https://www.g2.com/categories/internet-of-things-iot-developers)
    - [iOS Developers ](https://www.g2.com/categories/ios-developers)
    - [E-Commerce Development Companies](https://www.g2.com/categories/e-commerce-development)
    - [Software Developer Services Providers](https://www.g2.com/categories/software-developer-services)