If you want to ensure your software performs optimally, it's crucial to partner with top performance testing companies. They specialize in multiple testing services such as load testing, stress testing, and performance engineering to guarantee your software performs at its best under various circumstances. By leveraging their expertise and advanced testing tools, they can detect and resolve performance issues to prevent major software bugs and problems. Filter them by client reviews, team size and cost to narrow down the best team for your project.
Best Performance Testing Services
1,242 Companies - Rankings updated: April 01, 2026
We evaluate every agency on DesignRush for technical expertise, delivery quality, and verified feedback to help businesses find reliable software development services. Some listings may be paid.
Building Trust, Scaling Success: Your DevOps Journey Starts Here
We know for sure that the process of scaling is always a challenge, therefore we are always in touch with our clients: since the moment of infrastructure audit, during critical loads and to the successful launch of the project. We are fully responsible for the quality of our work [... see all Quema reviews ]- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Quality, Experience, Transparency, Results
Mercury Development offers best in class Software Development, Mobile Apps, UI/UX, QA, ML, Data Science and more. With over 23 years in business, and over 400 employees, Mercury has the experience required to deliver your project on time and on budget. [... see all Mercury Development reviews ]- Location
- Stuart, Florida
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Portfolios Count
- 8 Projects Listed
Software Development Team for your Business Success.
One stop shop for modern software development. [... see all Gurzu reviews ]- Location
- Boston, Massachusetts
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $35/hr
- Portfolios Count
- 13 Projects Listed
Transforming Businesses, Empowering Futures
Softnix is a forward-thinking agency dedicated to providing innovative technology solutions tailored to meet the unique needs of businesses worldwide. [... see all Softnix reviews ]- Location
- Sugar Land, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Leading the AI Revolution in Healthcare & Enterprise Solutions
Next-Generation AI Development Company - Transforming Ideas into Intelligent RealityDreamSoft4u is pioneering the future of AI-powered software development with cutting-edge Generative AI solutions that deliver measurable business impact. [... see all Dreamsoft4u reviews ]- Location
- Corona, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 18 Projects Listed
Feel like you're working with your own team.
As a web development company specializing in building high-load complex products, we are passionate about sharing our expertise and keeping you updated on the latest advancements in these key areas. [... see all Singula reviews ]- Location
- Dubai, United Arab Emirates
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Experience the Best in Mobile Entertainment
At Inventco Software, we craft top-tier media apps that redefine user engagement. Pioneers in media app development, we seamlessly blend mobility and entertainment, ensuring your brand resonates universally. [... see all Inventcolabs Software reviews ]- Location
- Somerset, Massachusetts
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 67 Projects Listed
Premium Mobile App Development and AI Solutions
We work with Startups and Businesses with enterprising new ideas. Delivering Premium Mobile app development and AI Powered Software solutions. Our agile development model ensures speed of delivery and scalability, while our AI-powered solutions enhance functionality and user experience. [... see all WDI reviews ]- Location
- Mumbai, India
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 86 Projects Listed
IT Staff Augmentation & Tech Recruitment Services
Looking for top-notch tech talents? We connect you with IT staff augmentation and tech recruiting services, ensuring you get the best-fit talent for your unique needs. [... see all JayDevs reviews ]- Location
- Vilnius, Lithuania
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 15 Projects Listed
The Development Partner for SaaS, Sport & FinTech Leaders.
Coderfy is TOP-rated full-cycle web solutions company focused on:- custom software and web applications- mobile apps and custom AI chatbots- web design and website development at a fair price - full-stack web development, CRM and ERP systems, outsourcing including PM and BA services [... see all Coderfy reviews ]- Location
- Kyiv, Ukraine
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 26 Projects Listed
We Make the Impossible Case Possible.
Matellio is a leading software engineering studio, recognized globally for delivering intelligent solutions powered by Artificial Intelligence and Machine Learning. We specialize in developing customized AI solutions tailored to various needs of businesses under different industry verticals. [... see all Matellio Inc. reviews ]- Location
- Denver, Colorado
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 26 Projects Listed
We are reliable, creative and competent.
KeySS Inc offers tailored services and solutions crafted to help your business distinguish itself in a competitive market landscape and attain its objectives effectively. With our expertise and personalized approach, we strive to empower your brand to make a lasting impact and achieve sustained success. [... see all KeySS Inc reviews ]- Location
- Austin, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $95/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Designing Products That Captivate, Innovate & Elevate.
Detekt Design Group is a leading product design agency in Austin, Texas. With over 20 years of experience, our team of engineers and designers specializes in bringing concepts to life. From electronics to embedded systems, we have successfully launched products in various sectors, including life sciences and [... see all Detekt Design Group reviews ]- Location
- Austin, Texas
- Number of Employees
- Under 49
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 15 Projects Listed
Driven by Innovation
The best eCommerce development company empowering you with the tools you need to conquer your industry. [... see all Folio3 reviews ]- Location
- Pleasanton, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 11 Projects Listed
Resource Augmentation Company For Funded Startups
Our technical excellence ensures that we ignite innovation while safeguarding your MVPs through cost-effective resources. [... see all Blue Orbits reviews ]- Location
- Kuala Lumpur, Malaysia
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $15/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 18 Projects Listed
Helping today's innovators build the tools of tomorrow
Building apps for service based SME's that automate workflows and generate revenue using custom & no code solutions, often with AI integrations. [... see all Lean Discovery Group reviews ]- Location
- Henrico, Virginia
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 6 Projects Listed
Making functional and user friendly software's for humans
Mobirevo is a Leading custom software development agency focused on web, mobile app development & saas application development, Enterprise resource planning, and management software (ERP software development). We are a team of incredible Design & Agile software development experts in all major technology [... see all Mobirevo reviews ]- Location
- Port Harcourt, Nigeria
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 2 Projects Listed
Australias Top-Rated Software & App Development Company
Vrinsoft Pty Ltd is a top software and mobile app development company in Melbourne, Australia. With over a decade of experience in the Australian market, we have demonstrated a history of success in every industry vertical. [... see all Vrinsoft Pty Ltd reviews ]- Location
- Melbourne, Australia
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 11 Projects Listed
Its Our Business to Develop Yours.
Settings Infotech emerges as a global frontrunner in IT services, offering comprehensive solutions tailored to businesses' diverse needs. Our extensive array of services spans website development, application creation, software development, and digital marketing, ensuring that businesses receive holistic [... see all Settings Infotech reviews ]- Location
- Surat, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Solving complex problems with design and technology since 2005.
We craft digital products that streamline your processes, expand your customer base, and drive business growth. Strategically located within your reach, we'll take your ambitious project from an intriguing idea to an outstanding success stories. [... see all Infinum reviews ]- Location
- Zagreb, Croatia
- Number of Employees
- 250 - 499
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 24 Projects Listed
Shaping Tomorrow with Wearable Technology
Digital Grind Agency specializes in innovative wearable technology solutions, ensuring agility and cost-efficiency. Our unique approach in software development prioritizes speed and top-tier talent while ensuring seamless collaboration. [... see all Digital Grind Agency reviews ]- Location
- Dubai, United Arab Emirates
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Portfolios Count
- 3 Projects Listed
Our experience makes it simple!
20+ Years of experience in software projects for the most sophisticated industries, covering the entire lifecycle, from requirements to deployment and support. A pool of talented professionals next door with all the benefits of the nearshore model. [... see all TXM reviews ]- Location
- La Rosa, Mexico
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $10,000 - $25,000
Shaping Visions
We Help You Build Your Vision Taking Shape in form of product which will create history with finest quality of work [... see all Borgfy reviews ]- Location
- Philadelphia, Pennsylvania
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 7 Projects Listed
The Number One in Mobile App & Web-App Development
Hello, and welcome to Lizard Global!Visit our website: https://www.lizard.global/ [... view Lizard Global profile ]- Location
- Kuala Lumpur, Malaysia
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 43 Projects Listed
Take your business, ABOVE EXPECTATIONS
When Uteek was initially launched with just three individuals who shared a vision. Today, it has evolved into an organization with over 35 talented professionals dedicated to:1. Web Design & Development2. Mobile App Design & Development3. Software Development4. Graphic Design5. Marketing [... see all UTEEK reviews ]- Location
- Toronto, Canada
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 34 Projects Listed
Cloud. AI. Development.
For 25+ years, Clarion helps enterprises, SMBs, and startups build, modernize, and scale software with results. [... see all Clarion Technologies reviews ]- Location
- White Plains, New York
- Number of Employees
- 250 - 499
- Portfolios Count
- 10 Projects Listed
New Dimension to IT World
IT Services India is a leading mobile app and web development company in India. Founded in July 2010, we have helped organizations ranging from Startups that went public, to Fortune 300+ companies. Our services include: Hire Dedicated Resources/Developers, Web Application Development and e-commerce. [... see all IT Services India reviews ]- Location
- Ahmedabad, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Your Technology Partner To Build Winning Products
We are a software development agency specializing in web and mobile application development, providing expertise to companies seeking to build or maintain their digital products. Our goal is to become your trusted partner, supporting you every step of the way on your digital journey. [... see all Outecho reviews ]- Location
- Sarajevo, Bosnia and Herzegovina
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Portfolios Count
- 4 Projects Listed
Your Digital Innovation Partners
At Rootstack, we strive for excellence every step of the way. We provide high-quality technology and software outsourcing services and create outstanding digital experiences for companies in Latin America, the United States and Canada. [... view Rootstack profile ]- Location
- Panama City, Panama
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 42 Projects Listed
Great software, zero headaches
Great software, zero headaches [... see all Altamira reviews ]- Location
- Bratislava, Slovakia
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 37 Projects Listed
We build AI-native solutions and use AI to build software better, faster, smarter.
Your AI and Data transformation partner.We help you unlock AIs value through the power of your data. [... see all HatchWorks AI reviews ]- Location
- Atlanta, Georgia
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 11 Projects Listed
Award-Winning AI-Driven Digital Product & Software Engineering Company
Apptunix is a global product engineering company founded in 2013, delivering AI-powered, enterprise-grade software for innovation and scale. With offices in the USA, UK, UAE, and India, we serve enterprises, governments, and startups in over 50+ countries. [... see all Apptunix reviews ]- Location
- New York City, New York
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 23 Projects Listed
Empowering Your Digital Future with Innovative IT Solutions
At Quantum IT Innovation, our team excels in AI, Big Data, RPA, and Mobile App Development for iOS, Android, and Cross-Platform. We also offer expert SEO, PPC, and Social Media services to drive your business forward in the USA, UK, Canada, Ireland, UAE, Australia, India, & across the globe. [... see all Quantum IT Innovation reviews ]- Location
- Noida, India
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $10/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 100 Projects Listed
We Maximize Your ROI, Trusted by 1000+ Clients ️
With over 9+ years of experience and 1000+ happy clients, we commit ourselves to your growth. Our team of 85+ of digital marketing experts has delivered:1. 493.37% Increase In Conversions2. 140.91% Increase In Purchases3. 702.60% Increase In Conversion Value4. 180.50% Increase In New Users [... see all Webspero Solutions reviews ]- Location
- Mohali, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 32 Projects Listed
Redefining Technology
"A leading global Mobile App Development Company with 500+ Apps & Websites Delivered & provides end-to-end product engineering services." [... see all Infoventive Technologies Pvt Ltd reviews ]- Location
- Noida, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Flutter App Development Company
GetWidget is a Premier Flutter app development company that delivers robust Flutter app development services with an in-house team of 50+ developers across various Tech stack like NodeJS,React,GraphQL,AWS,MicroService Architecture. We are Choice of Leading Brands and Startups across world. [... see all Get Widget reviews ]- Location
- Bengaluru, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 6 Projects Listed
Your Vision, Our Excellence.
Resourcifi is a leading outsourcing company that specializes in providing high-quality and cost-effective solutions for businesses worldwide. With a team of skilled professionals and a client-centric approach, we offer a range of services tailored to meet diverse business needs. [... see all Resourcifi reviews ]- Location
- Wilmington, Delaware
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
We are working with the Top 1% of Ukrainian Talents! Trusted Talents - Ready to Join Your Team!
Meduzzen is a results-driven IT outsourcing and outstaffing company that provides high-quality, custom software development services for startups, growing businesses, and established enterprises worldwide. [... see all Meduzzen reviews ]- Location
- Odesa, Ukraine
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 9 Projects Listed
Your E-Commerce, Our Expertise: Magento & Shopify Solutions
Your Shopify & Magento Development Experts. Site speed, conversion rate optimization, platform evaluations, platform migrations, theme development, ERP integration development, custom application development, headless development and more! [... see all Bighorn Web Solutions LLC reviews ]- Location
- Sheridan, Wyoming
- Number of Employees
- Under 49
- Average Hourly Rate
- $135/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 10 Projects Listed
Nearshore & Offshore IT Outsourcing Experts
ParallelStaff is an IT outsourcing partner helping tech leaders scale fast with pre-vetted Nearshore and Offshore developers. We deliver top-tier talent in 10 days or less, backed by guarantees for performance, security, and cultural alignment. [... see all ParallelStaff reviews ]- Location
- Dallas, Texas
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 11 Projects Listed
Exceptional Development, Affordable Rates!
Welcome to Aalpha Information Systems Pvt. Ltd., your top choice for cutting-edge software solutions. Since our establishment in 2008, we have proudly delivered exceptional software development services worldwide. With a track record of over 5,500 successful projects across 45+ countries. [... see all Aalpha Information Systems India Pvt. Ltd reviews ]- Location
- Bengaluru, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $15/hr
- Portfolios Count
- 20 Projects Listed
Let's Uncover the Next Big Cross-Platform App Together
CMOLDS is a custom software and mobile app development company specializing in digital transformation consultancy and products including websites, Android and iOS apps, mobile games, B2B portals, and SaaS [... see all CMOLDS reviews ]- Location
- San Francisco, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 20 Projects Listed
Web Design & Digital Marketing Agency Melbourne
Go Click On is a reputable web design and development Agency in Australia with a track record of over 13 years in the industry. Our committed team of experts is wholeheartedly dedicated to delivering exceptional results for our clients. [... see all Go Click On reviews ]- Location
- Melbourne, Australia
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $49/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 10 Projects Listed
Build Intelligent Apps for Web, Mobile, Data, AI and Cloud
Azumo helps businesses build intelligent apps by providing top-tier developers skilled in AI, data engineering and enterprise web & mobile applications. Our expertise has earned the trust of industry leaders like Facebook, Twitter, Discovery, Zynga, and NCSoft. [... see all Azumo reviews ]- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 9 Projects Listed
Software Development for NASDAQ & NYSE Listed Companies and Fast-growing Startups
Product engineering partner for USA startups and enterprise teams (incl. NASDAQ/NYSE). Build web & mobile apps ~30% faster at ~40% lower cost. ISO 9001:2015 + ISO/IEC 27001:2022 certified for quality and security. +1 (505) 464-6100 [... see all ATeam Soft Solutions reviews ]- Location
- Thiruvananthapuram, India
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 22 Projects Listed
Partnership that works for you
At Software Development Hub, we specialize in enterprise software development, offering expert web & mobile app solutions since 2014. Our agile approach spans various domains and technologies. Connect for a free estimate: info@sdh-it.com [... see all Software Development Hub reviews ]- Location
- Hamburg, Germany
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $38/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 17 Projects Listed
Digital Consulting That Drives Business Innovation
Robosoft Technologies is an experience engineering company trusted by large global enterprises, ambitious startups, and mid-size companies worldwide. Our mission is to simplify every aspect of digital life, from utility services to entertainment and productivity at work. [... see all Robosoft Technologies reviews ]- Location
- San Francisco, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 16 Projects Listed
Enterprise AI Solutions | Scalable . Flexible. Sustainable
Seasia, being a well-known world-class enterprise software development company, serves small, medium, and large-sized businesses in a seamless and secure manner. We enable competitive digital strategies within your organization that will boost your business. [... see all Seasia Infotech reviews ]- Location
- Emeryville, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 52 Projects Listed
Passion to Innovate
Urapptech: Where Innovation Meets Functionality. We specialize in crafting cutting-edge software solutions tailored to amplify your digital presence and streamline operations. Whether you're launching a startup or expanding an enterprise, our team of tech-savvy wizards is dedicated to transforming your ideas [... see all UrApptech, Inc. reviews ]- Location
- Karachi, Pakistan
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
MVP & Product Development Company
We are a premier global agency specializing in MVP and and Product Development, empowering groundbreaking startups to bring their ideas to fruition through cutting-edge technology. [... see all Iotric reviews ]- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $10/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 10 Projects Listed
Explore Software Development Specializations
- .Net
- Agile Consulting
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