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Top Software Testing Companies in the USA

Searching for a testing service provider in the USA? If a product wants to be good for use, it has to pass multiple sets of the tests. After each series of testing, the software goes for rectification. After solving the errors, the software is rerun through the tests. This process continues until the product runs smoothly and without any errors. With the increasing number of software testing companies in the USA, it becomes hard to evaluate and select the ideal company. To help you have the best software testing solution for your business, GoodFirms has curated this list of companies after extensive research based on their quality, reliability, and ability.

List of Best Software Testing Service Provider Companies in the USA

ScienceSoft USA Corporation
Best Practices For High and Sustainable Quality

ScienceSoft is a US-based IT consulting and software development company that offers all-encompassing software testing and QA services. Backed by 30 years of experience, the company provides QA consulting and software testing services for a range of industry domains, including healthcare, banking, retail, manufacturing, telecommunications, public sector, and media. ScienceSoft’s team of ISTQB-certified testing professionals lever ... Read more

Kavitha Ganapa, PMP, CSM, Delivery Leader at Guardian Technology Group
Kavitha Ganapa, PMP, CSM, Delivery Leader at Guardian Technology Group
NA
250 - 999
1989
United StatesMcKinney, 
A1QA

2. A1QA

Software Testing and Quality Assurance Company

A1QA is an independent Software Testing and Quality Assurance Company. Headquartered in Lakewood, Colorado, A1QA has its locations across the globe. With over 600 QA professionals on board and over 15 years of experience in providing services across a range of verticals, A1QA has built up a reputation for quality and reliability. A1QA helps clients globally assure high quality of the software they develop to achieve their business goals and ... Read more

Shoshana Parker, Senior Computational Biologist  at SBH Health System
Shoshana Parker, Senior Computational Biologist at SBH Health System
$25 - $49/hr
250 - 999
2003
United StatesLakewood, 
Simform

3. Simform

Extended team that is part of your team

We’re a tech company with a mission to help successful companies extend their tech capacity. Founded in October 2010, we have helped organizations ranging from Startups that went public, to Fortune 500 companies, and WHO backed NGOs. Simform helps companies become innovation leaders by delivering software teams on demand. We help you - choose the right technologies to invest in, decide on the best architecture and processes to follow, an ... Read more

$25 - $49/hr
50 - 249
2010
United StatesSan Francisco, 
QA Mentor
CMMI appraised, ISO certified Testing Company

QA Mentor is multi-awards winning a CMMI Level 3 SVC + SSD v1.3 appraised, ISO 27001:2013, ISO 9001:2015 and ISO 20000-1 certified leading software testing company headquartered in New York. With 274 certified QA Professionals in 8 different countries offering more than 30 QA Testing Services and covering all time zones, QA Mentor is a global leader in Software Quality Assurance and Testing space. Serving 382 clients from Fortune 500 to start ups ... Read more

Dwight Lee, Partner at Division Of/
Dwight Lee, Partner at Division Of/
< $25/hr
250 - 999
2010
United StatesMiami, 
KiwiQA Services
One Click Away from finding experience QA agency

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 testing services for several years. ​ We have strong expertise in delivering cost-effective, value-added testing services t ... Read more

Scott Hunley, Devops Manager at Long Tail Technology
Scott Hunley, Devops Manager at Long Tail Technology
< $25/hr
50 - 249
2009
United StatesFairview Heights, 
DeviQA

6. DeviQA

Software Testing Company, QA Services.

DeviQA is one of the global leaders in Software Testing and Quality Assurance Services. To prove that, we propose a high level of protection for you as our potential client consisting of making a quote, providing the references, conducting a free POC, and finally a trial engagement. After these four steps, you’ll know for sure that DeviQA is a right partner. Our offerings include Automated testing for Web / Mobile and API, Full-cycl ... Read more

$25 - $49/hr
50 - 249
2010
United StatesNYC, 
Belatrix Software
Shaping ideas into great software products

BELATRIX Software is one of Latin America’s foremost agile innovators and application designers. Leveraging the benefits of the Nearshore model, Belatrix helps clients achieve the full impact of their R&D and product development capabilities developing high quality innovative software, QA, testing and mobile solutions. Applying Agile methodology (Scrum) and Design Thinking approach, the company reduces clients  time to market by of ... Read more

Jose Sabastro, CTO at Chatham Financial
Jose Sabastro, CTO at Chatham Financial
$25 - $49/hr
250 - 999
2003
United StatesRedwood City, 
Bianor

8. Bianor

Custom Software Development Since 1998

About Bianor: For about 21 years, we have been designing and developing unique software solutions for leading technology, media, and telecommunication companies. Bianor employs highly skilled staff in its Sofia and New York offices. Certifications and Awards: Bianor is NATO AQAP 2110 & 2210 and ISO 9001:2015 certified and has twice been awarded the Innovative Enterprise of the Year Award and the LISA Top Product Award, among other ... Read more

$25 - $49/hr
10 - 49
1998
United StatesLos Angeles, 
Zymr, Inc.
Agile Software Engineering Services

Zymr is a full-stack cloud software development company headquartered in Silicon Valley. Combining agile development practices and cutting-edge open source technologies, we deliver fit-for-purpose software that scales with our customers’ business needs. Founded by industry veterans with decades of technology experience, we are proficient in accelerating cloud application development. With our integrated cloud, mobility, design, DevOps, c ... Read more

Unmesh Sheth, Founder & President at SoPact
Unmesh Sheth, Founder & President at SoPact
$25 - $49/hr
50 - 249
2012
United StatesSan Jose, 
QualityLogic
Agile Software Testing and QA Services

Passion fuels perfection. It’s a fierce, relentless quest to get it right. And when there’s no room for error, there’s QualityLogic, America’s most trusted, full spectrum QA provider. We’re on-shore, on-demand, on-the-numbers QA support for clients spanning the globe and sweeping the spectrum of industry — including media & entertainment, retail & e-commerce, imaging, smart energy, virtual reality, a ... Read more

$25 - $49/hr
50 - 249
1986
United StatesSimi Valley, 
LambdaTest
Cross Browser Testing Cloud

LambdaTest is a scalable cloud-based cross browser testing platform designed to offer all website or web app testing need to cloud infrastructure. LambdaTest platform helps you to ensure your web app elements (such as JavaScript, CSS, HTLM5, Video...etc.) render seamlessly across every desktop and mobile web browser with support of manual, visual, and automated testing. With LambdaTest, you can access up to 2000+ combinations of desktop and mobil ... Read more

Amanda  Fox, Analyst at Aspirant
Amanda Fox, Analyst at Aspirant
< $25/hr
50 - 249
2017
United StatesSan Francisco, 
SimbirSoft
We create world class software products & services

SimbirSoft was founded in 2001 to create world class software products and services for our clients. We develop custom software, mobile applications, complex web services, desktop applications, client server systems, and provide quality assurance services. Our team of experienced software engineers, quality assurance engineers, and project managers solve complex business tasks for a variety of industries. Maintains high industry standards and inv ... Read more

Andrey Konushin,  at
Andrey Konushin, at
$25 - $49/hr
250 - 999
2001
United StatesBoston, 
Consagous Technologies
Award Winning Software, Web & Mobile app firm

Award-winning Software, Web and Mobile app development company in USA, Australia and India. Founded in 2008, we believe in delivering efficient and simple software solutions across various domains including Healthcare, Banking, Education, Logistics etc.  Consagous is a technology consulting company specializing in advanced business intelligence, Big Data, Artificial Intelligence, Blockchain development across USA, UK, UAE, AU, a ... Read more

Byron Gasaway LSSBB, Co-Founder at CheapEatz LLC
Byron Gasaway LSSBB, Co-Founder at CheapEatz LLC
$25 - $49/hr
50 - 249
2008
United StatesAustin, 
Redwerk

14. Redwerk

We offer quality software development outsourcing

Redwerk is committed to providing businesses of all sizes with reliable, high-quality full cycle software development and consulting services. We have been continually evolving and refining our approach to custom software development since 2005. Redwerk team has been routinely exceeding expectations with such clients as Universal Music Group and Siemens with our cost-effective approach to tackling both challenging technical and business problems ... Read more

$25 - $49/hr
50 - 249
2005
United StatesNYC, 
Aryavrat Infotech Inc.
Web, Mobile, Artificial Intelligence, Embedded Dev

At Aryavrat, with development centers in US (San Francisco) & India (Jaipur), we have partnered with some of the best companies in the world to deliver strategic software and mobile solutions to support expanding operations and maximize revenue. Clutch: https://clutch.co/profile/aryavrat-infotech

Bill Takacs, Head Of Product at  RideCare
Bill Takacs, Head Of Product at RideCare
< $25/hr
50 - 249
2007
United StatesFoster City, 
QAwerk

16. QAwerk

Software Testing Company QAwerk. QA Outsourcing

QAwerk is a reliable software testing company based in Ukraine that provides high-quality testing services for enterprises all over the world. The majority of our clients based in the US, Europe, Canada, Australia, and we expand the geographical horizons with every project. QAwerk specializes in all types of mobile, web and desktop testing, documentation design, and technical writing, so we are ready to provide the professional offshore testing t ... Read more

Alfonso Cobo, CEO at Unfold
Alfonso Cobo, CEO at Unfold
$25 - $49/hr
50 - 249
2015
United StatesNYC, 
Vyshnavi Information Technologies (India) Pvt. Ltd

Vyshnavi Information Technologies India Private Limited (VIT) is a global Information Technology Company established in the year 2001 with headquarters in Bangalore, having development centers in Bangalore, Pune, US and Canada. Our range of services includes Design, Development and Testing of software components for Product Companies, turn-key Software Solutions for Retail, e-Governance, Utility, Facilities, and Mining Industries. VIT is also a p ... Read more

Lotika Gulvadi, Director of Customer Operations at Rally.org (Formerly Piryx, Inc.)
Lotika Gulvadi, Director of Customer Operations at Rally.org (Formerly Piryx, Inc.)
$25 - $49/hr
250 - 999
2001
United StatesSan Ramon, 
Nexsoftsys
IT Partner for Global Clients

Nex is a Technological Partner for Global Enterprises and Startups with a mission to empower businesses to excellence through seamless IT solutions. Since 2002, we have provide innovative software and data-driven solutions to many companies by our presence in many different countries including USA, Australia, Asia, Africa and Europe. Our extensive services and expertise in developing software solutions for multiple verticals make us the most p ... Read more

Yagnesh Vara, SEO Expert at Aegis Softwares
Yagnesh Vara, SEO Expert at Aegis Softwares
NA
50 - 249
2009
United StatesNYC, 
Design and Test Lab
Mature Mobile Reliability Standard

The highest priority of Design and Test Lab ☆☆☆☆☆  is Mature Mobile Reliability Standard that is the development of reliable mobile applications.  But we don’t just write code.    We help our clients to build better products by walking step by step along the way and helping to refine the vision and maximize chances for success.    We apply the scientific knowledge in project planning, arch ... Read more

David Slinger, Owner at Life Energy Designs Ltd.
David Slinger, Owner at Life Energy Designs Ltd.
$25 - $49/hr
10 - 49
2005
United StatesSan Francisco, 
Mercury Development
Building Amazing Apps Since 1999

Since 1999, Mercury Development has been providing quality custom software development for a variety of platforms and industries. We develop for every major mobile platform as well as emerging platforms and web/database projects. Our extensive platform expertise makes us the ideal candidate for multi-platform, cross-platform and porting projects.

Aeron Sullivan, Director Of Audience Development at The Bible Project
Aeron Sullivan, Director Of Audience Development at The Bible Project
$50 - $99/hr
250 - 999
1999
United StatesMiami, 
Shine Infosoft
Xamarin app & Native app development company

Shine Infosoft is knowledge led, passion-driven next-generation IT company. We have very sharp teams implementing technology(Xamarin App Development, Native app development, Web App development, Software Development, Digital Marketing) services and solutions to global businesses. Technology is our life and we take our profession very personally. Our team is certified, credible, and competent and comes with global exposure. Our Vision:&nbs ... Read more

Jay, CEO at Latitude Technolabs Pvt Ltd
Jay, CEO at Latitude Technolabs Pvt Ltd
< $25/hr
10 - 49
2014
United StatesNYC, 
GOTESO

22. GOTESO

Landmark of Technology Solutions

We are custom web and mobile app development company which help entrepreneurs, business owners and investors to launch their market disruptive ideas to streamline their verticals using technology solutions. 

Khushal Sukhadia, Sr. Executive at Raychem RPG Ltd.
Khushal Sukhadia, Sr. Executive at Raychem RPG Ltd.
$50 - $99/hr
10 - 49
2013
United StatesSan Francisco, 
Espeo Software
Your project. Our developers. One team.

Espeo Software is a software lab dedicated to high-quality product development, design, and testing. For the past decade, we’ve been successfully crafting market-leading web and mobile products designed to accelerate the growth of our customers.  We excel in providing agile teams that meet the business and technical needs of our clients. Our blockchain brand, Espeo Blockchain, is a full-service partner for transforming your blockcha ... Read more

Trod Frost, CEO at OutSearching
Trod Frost, CEO at OutSearching
$50 - $99/hr
50 - 249
2008
United StatesSan Francisco, 
AppSquadz Technologies Private Limited

A fast-growing I.T. firm, proficient in android app development, Designing, iOS app development,  digital marketing, AI, VR and IOT, committed towards delivering a user centric solutions for your enterprise! Also we are one of the Top 10 Mobile Application Development Company. Who we are and what we do?  • Mobile and web application development and design company driven towards the development of creative and engaging apps f ... Read more

subhash chand, Territory Sales Executive at HP
subhash chand, Territory Sales Executive at HP
< $25/hr
50 - 249
2014
United StatesNew Jersey, 
iCoderz Solutions Pvt. Ltd.
Mobile Apps & Website Development Company

iCoderz is a full stack mobile app development company. It inaugurated its operations in the year 2009 with a few young and dynamic techno- entrepreneurs with an aim of offering customized services in the area of mobile app development in India. iCoderz sets itself apart from other Android app development companies by mixing arts with technology to deliver captivating user experience for Android users. In the present day, the company ... Read more

< $25/hr
10 - 49
2009
United StatesOxon Hill-Glassmanor, 
Terasol Technologies

Terasol's mission is to create apps that would help people learn and grow with tech. Every member of Terasol shares the same dream of working towards building apps that would not only create history but also give people the opportunity of experiencing tech they did not know could become essential part of their lives. A lot has changed since we developed our first app; we have grown with each project and refined our skills to serve nothin ... Read more

$25 - $49/hr
10 - 49
2014
United StatesNYC, 
Algoworks

27. Algoworks

Mobile App Development | Salesforce Services | BI

Algoworks is a technology company providing end-to-end product development services globally. With our product engineering and agile delivery process, we help deliver robust software products in shortest time to market. Our key IT service offerings include Mobility, Salesforce, DevOps and Enterprise Application Integration. We are recognized partners with 100+ businesses worldwide including Fortune 500 companies such as Amazon, Dell, Salesforce, ... Read more

Joe Mellet, Vice President, Technology, Product, and Operations at White Pine Diamonds
Joe Mellet, Vice President, Technology, Product, and Operations at White Pine Diamonds
< $25/hr
250 - 999
2006
United StatesSunnyvale, 
OM SOFTWARE PVT LTD
WE BUILD WEB & APPS , THAT BUILD YOUR BUSINESS

Established in 2004, OM Software is a web development firm specializing in eBusiness optimization solutions for companies across the globe. OM Software offers a complete range of web-based application services including strategic consulting, prototype development, site architecture planning, creative graphic design and photo imagery, eCommerce solutions, content management systems, content migration services, lead generation tools, advanced progr ... Read more

Mohammad Abdulla, Senior System Analyst- intel & Mobility , inform . intelligence ent Applications at Emirates Global Aluminium (EGA​)
Mohammad Abdulla, Senior System Analyst- intel & Mobility , inform . intelligence ent Applications at Emirates Global Aluminium (EGA​)
< $25/hr
50 - 249
2008
United StatesBrighton, 
Dedicated Developers
Top Rated Mobile App and Web Development Company

We’ve worked with 300+ startups, small to medium-sized enterprises and top brands from 15+ different countries. We've been empowering them with our digital intelligence and expertise over the past 10 years. We have successfully delivered 1000+ Swift and Agile web and mobile apps spread among 12+ industries. We deliver the right business outcomes 4X faster than our competitors and ... Read more

Chris Johnson, Marketing Director at Demand Products, Inc.
Chris Johnson, Marketing Director at Demand Products, Inc.
$50 - $99/hr
50 - 249
2007
United StatesSan Francisco, 
Keyideas Infotech Private Limited
Web Design - Mobile Apps - ECommerce - Enterprise

WEBSITE DESIGN AND DEVELOPMENT COMPANY We started with a small team of web designers and scaled up to a full-service digital agency with the development team based in New Delhi. with software development capabilities that involved custom design, e-commerce, and mobile apps. Design and User Experience: We specialize in building amazing web designs, providing an excellent UI and that includes Prototyping, Responsive Web Design, and WordP ... Read more

< $25/hr
50 - 249
2007
United StatesPamona, 
CodeBright
Software Made Simple

We at CodeBright believe in improving the world using technology. We work with startups, small/large companies as well as non-profit organizations to bring Minimal Viable Products (MVPs) to the market, improve/streamline/automate business processes, raise efficiency/productivity, reduce costs and more. The award winning team is capable of handling a wide variaty of complex software development projects t ... Read more

Lindsey Barrus, Field Operations Manager at US Army
Lindsey Barrus, Field Operations Manager at US Army
NA
50 - 249
2015
United StatesSan Francisco, 
Sunflower Lab
Sunflower Lab

Started on Sunflower Road in New Jersey, we saw an opportunity to create products that help companies transform how they do business. Founded in 2010, we are a fast-growing, award-winning digital product and innovations agency with offices across North America and India. With over 75+ talented engineers & designers around the world, we help growing startups and global brands build innovative, beautiful custom technology solutions. We belie ... Read more

Mari Aldrich Beckert, Board Secretary at Jovante Woods Foundation
Mari Aldrich Beckert, Board Secretary at Jovante Woods Foundation
$50 - $99/hr
50 - 249
2010
United StatesColumbus, 
WebClues Infotech
Your Vision, Our Creation

WebClues InfoTech is a one-stop IT solutions provider that specializes in creating wonderful websites and applications for various industries. Our team of brilliant individuals combines years of experience with an eye for beautiful designs to create robust, user-friendly websites and mobile applications that help businesses attract customers.  We've served many clients across the globe including enterprises.  Some of our key ente ... Read more

Thomas Peter Clausen,  at
Thomas Peter Clausen, at
$25 - $49/hr
50 - 249
2014
United StatesAtlanta, 
Prismetric
Delivering Quality Products and Premium Services

Prismetric is an ISO 9001:2015 Certified Mobile App Development Company having a development center in India with offices in USA & Saudi Arabia that offer exceptional applications development for iPhone, iPad and Android devices along with other web services to provide end-to-end solutions. We have a strength of over 90+ highly skilled and competent mobile app developers and designers working with a sole mindset of customer satisfaction. S ... Read more

Jason Holman, Co-Founder at LetGo Group Limited
Jason Holman, Co-Founder at LetGo Group Limited
< $25/hr
50 - 249
2008
United StatesSouth San Francisco, 
KitelyTech
Mobile, Web, Software & SEO Agency

The team at KitelyTech mixes together all of the ingredients required for a successful technology development company. We have highly talented and energetic developers, architects and testers, all recruited through an exceptionally rigorous process. Analytical mindsets that understand the nuances of our customer’s businesses and project scopes, methodical project managers and designers, highly driven management with a focus for quality and ... Read more

Nilesh Patel, Head - NBCU at Wockhardt Ltd.
Nilesh Patel, Head - NBCU at Wockhardt Ltd.
$100 - $149/hr
10 - 49
2009
United StatesChicago, 
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