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
561 Companies - Rankings updated: April 02, 2026
DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.
United States ×
Innovative, Reliable and Affordable
We build custom Software Solutions, Mobile Apps, Content Management Systems, Document Management Systems, Customer Relationship Management Systems (CRM), Enterprise Resource Planning (ERP), E-Commerce Software Development, Web Product Development, IT Consulting Services, Web Designing & Development. [... see all Hexagon IT Solutions reviews ]- Location
- Salt Lake City, Utah
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Reforming Tomorrow's Tech
Empowering California Businesses with Bespoke Web Design and Development Services. [... see all Tech Reforms reviews ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 11 Projects Listed
Mobile and software app development executed with perfection!
TVISHA is a dynamic technology company that envisions and crafts innovative digital solutions. With an unwavering commitment to excellence, we stand as a trusted partner on the forefront of technological evolution especially mobile and publishing app development. [... see all Tvisha Technologies reviews ]- Location
- Edison, New Jersey
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $10/hr
- Portfolios Count
- 5 Projects Listed
Lets build some tech together!
Guiding and helping businesses worldwide build solutions that sell. Genetech is an award-winning custom software development company with almost 2 decades of experience in delivering top-notch tech services, including AI, IoT, Intelligent Apps, Cyber Security, and Tech Talent. [... see all Genetech Solutions reviews ]- Location
- Ann Arbor, Michigan
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 37 Projects Listed
The undisputed authority on BLE Bluetooth IoT and AI App Development
We are the undisputed authority on Bluetooth BLE, IoT, and AI applications. Our Bluetooth and AI applications have proven to be very effective to clients across the United States and Europe. Call us for a free technical consultation and evaluation of your project. [... see all Quartus Technology, Inc reviews ]- Location
- Westport, Connecticut
- Number of Employees
- 50 - 99
- Portfolios Count
- 16 Projects Listed
Where Brands Take Flight Through Exceptional Web Design!
At Rootless Agency, we're a full-service digital agency based in the Greater Boston area, specializing in web design, social media management, digital marketing, and branding. Our mission is to craft digital experiences that boost business growth and pave the way for innovative technologies. [... see all Rootless Agency reviews ]- Location
- Hudson, Massachusetts
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 11 Projects Listed
Empowering Innovation Through IT Solutions.
iVelopment delivers cutting-edge IT solutions that drive business success. With a focus on personalized service and innovative technologies, we provide tailored software development, systems integration, and IT staffing to help companies stay ahead in a rapidly evolving digital landscape. [... see all IVelopment, Inc reviews ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Portfolios Count
- 4 Projects Listed
Transform Fast: Your App on iOS & Android Awaits!
KodersPedia is a Palo Alto, California-based mobile app development company specializing in end-to-end digital solutions. Founded in 2020, the company offers services including mobile app development, game app development, website development, and staff augmentation. KodersPedia caters to a diverse range of [... see all Koderspedia reviews ]- Location
- Palo Alto, California
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 13 Projects Listed
Infograins Software Solutions, Innovate, Automate, Dominate
Infograins Software Solutions Pvt. Ltd., established in 2013 by Ajay and Vipin Shukla, delivers innovative IT services, including blockchain solutions, mobile app development, custom software development, staff augmentation, and AI integration. Our dedicated team provides goal-oriented solutions. [... see all Infograins reviews ]- Location
- Chicago, Illinois
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Developing Partnerships
At Kaizen Softworks, were here to make your business thrive with custom software solutions. Our team is a blend of skilled designers, software engineers and scrum masters who are dedicated to transforming your business challenges and ideas into effective software solutions. [... see all Kaizen Softworks reviews ]- Location
- Boston, Massachusetts
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $25,000 - $50,000
Techforce Global: Your Catalyst for Seamless Solutions
Techforce Global: Your partner for government custom software development, React Native development and more. Offering comprehensive services across industries with a global presence and a focus on scalable, intelligent solutions. [... see all Techforce Global reviews ]- Location
- Naperville, Illinois
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $26/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 20 Projects Listed
Your AI-powered Engineering Partner
Instinctools is a leading AI and digital product engineering company with 25+ years of experience. Their services include AI-driven custom software development, advanced data analytics, and digital product engineering. Specializing in end-to-end AI integration, they help businesses harness the powe [... see all Instinctools reviews ]- Location
- Potomac, Maryland
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 61 Projects Listed
Solving Complex Problems of the World Through AI
Discover the Unlimited possibilities of innovation and cutting-edge Mobile, Web, Game, & Embedded technologies with EzappSolution. [... see all Ezappsolution reviews ]- Location
- New York City, New York
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $15/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Your links to the world of I.T | Custom Software Development and Mobile App Development Experts
Linkitsoft is a leading provider of custom software solutions and mobile app development services. With a team of highly skilled professionals, we specialize in crafting innovative and cutting-edge solutions tailored to meet the unique needs of our clients. Experience to deliver exceptional results. [... see all LinkitSoft reviews ]- Location
- Austin, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Portfolios Count
- 14 Projects Listed
Solving What Matters with AI
Ailoitte is an AI-native engineering partner helping startups and enterprises build, modernize, and scale digital products with faster, more predictable outcomes. [... see all Ailoitte reviews ]- Location
- Dover, Delaware
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 9 Projects Listed
Mobile & Web Development Company
Surf develops client and corporate solutions from scratch, covering native and cross-platform mobile apps, web apps and services, AR and ERP systems. Over 13 years, we've built apps for KFC, Mars, The Home Depot, Burger King, SAP, plus over 200 other brands. [... see all Surf reviews ]- Location
- Wilmington, Delaware
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 10 Projects Listed
Transform Your Business Ideas Into Digital Solutions
Empowering your business through custom software solutions [... see all ILeaf Solutions reviews ]- Location
- Austin, Texas
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 23 Projects Listed
We Build. You Trust.
Kodevent is a US-based software company providing top AI developers and custom solutions built with GPT-4, Claude, Gemini, and LLaMA. We deliver intelligent software to help you launch, grow, and accelerate your businessfocusing on clear communication and lasting partnerships. [... see all Kodevent reviews ]- Location
- Sheridan, Wyoming
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
Delivering On Promises
We have been around for the last 23 years offering AI-driven solutions, Custom Mobile App Development, Tailored Software Solutions, and Enterprise Web Solutions catering to clients' needs. We Care for your Success -that is our reason to exist. Let's Talk about your dreams and we will deliver! [... see all Fullestop reviews ]- Location
- Jersey City, New Jersey
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 28 Projects Listed
Strategic Technology Partner for Custom Software & Mobile Development
Techstack is a strategic technology partner with 10+ years of expertise in mobile and custom software development. We build, scale, and evolve high-quality digital products through strong engineering culture, transparency, and long-term growth focus. [... see all Techstack Company reviews ]- Location
- Bonsall, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 24 Projects Listed
Experts at Your Service
Alt Digital Technologies is a B2B service provider servicing end to end development, DevOps, Testing and e-commerce solutions for your business. We work efficiently in ATG, Java, React, Salesforce, WordPress and majorly all technologies. [... see all Alt Digital reviews ]- Location
- Florida City, Florida
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Superior Business Solutions
Sigma Software specializes in developing software and is a globally distributed team of more than 2000 skilled IT professionals, spanning 12 countries including the USA, Sweden, UK, Canada, Israel, Singapore, UAE, Australia, Austria, Ukraine, and more. With a track record of over 20 successful years, we take [... see all Sigma Software reviews ]- Location
- Bellevue, Washington
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 14 Projects Listed
Most Trusted & Award Winning IT Firm
IIH Global offers innovative web, software, and mobile app development services tailored to your needs. As a trusted UK-based agency, we deliver reliable, scalable, and client-focused solutions to transform ideas into powerful digital products that drive growth, efficiency, and success. [... see all IIH Global reviews ]- Location
- Gilbert, Arizona
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $20/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 17 Projects Listed
We provide efficient software solutions tailored to your business needs.
SmartTek Solutions is a software development company that delivers software products, biotech, managed IT outsourcing services, and solution engineering to world-renowned customers. [... see all Smart Tek SAS reviews ]- Location
- Austin, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 36 Projects Listed
Shopify/Plus | Web Development | AI Development | UX/UI design | Custom Development
DigitalSuits is a full-cycle ecommerce agency with a focus on Shopify development and extensive expertise in AI development, web development, and custom software development. [... see all DigitalSuits reviews ]- Location
- Miami, Florida
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 9 Projects Listed
HIGH QUALITY SOFTWARE COMPANY IN VIETNAM
With over 10 years of expertise, AgileTech Vietnam stands at the forefront of delivering innovative technology solutions across a wide range of industries. Our team of 300+ skilled developers has completed more than 1,000 successful projects, ranging from dynamic startups to large-scale enterprises. [... see all AgileTech reviews ]- Location
- Irvine, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 50 Projects Listed
Meet The Partner Behind Your App's Success | Make It App'n!
Meet your award-winning app development team, dedicated to turning your vision into scalable and profitable digital apps and software. [... see all Chop Dawg reviews ]- Location
- Philadelphia, Pennsylvania
- Number of Employees
- Under 49
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 52 Projects Listed
Empowering Businesses with Custom App and Software Solutions
iQlance is a leading web &mobile app development company with a strong presence in Dallas, USA. With extensive experience in crafting and deploying innovative mobile applications and software, we focus on creating customer-centric product designs that deliver seamless user experience. [... see all IQlance Solutions reviews ]- Location
- Dallas, Texas
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 21 Projects Listed
An Award-Winning Agency With 13 Years of Expertise
Red Collar digital agency was founded in 2011, now the team consists of 100+ experts. Our two main service lines are web design and end-to-end development. We were announced the best agency in the world in 2017 and 2019 by CSS Design Awards and have twice won the Webby, the 'Oscar' of the Internet. [... see all Red Collar reviews ]- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 23 Projects Listed
Build a More Technology-Driven Business With Our Developers.
Goosebelt is a premier software company specializing in custom software development and software outsourcing solutions. Our dedicated team of experts harnesses cutting-edge technology and innovative strategies to deliver tailor-made software solutions that drive business growth and efficiency. [... see all Goosebelt reviews ]- Location
- Orlando, Florida
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
Production AI That Users Actually Feel
As an AI software development company, we deliver production-ready AI features-copilots, document automation, knowledge assistants, recommendations, and voice agents-integrated into your apps to streamline workflows, enhance decision-making, and drive measurable business impact. [... see all HyperSense Software reviews ]- Location
- Chicago, Illinois
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 21 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
- San Francisco, California
- 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
- Fort Collins, Colorado
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 86 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
- North Bay Village, Florida
- 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
- Middletown, Delaware
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $15/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 18 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
- North Miami Beach, Florida
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 2 Projects Listed
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
- Miami, Florida
- Number of Employees
- 250 - 499
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 24 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
- Austin, Texas
- 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
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
- New York City, New York
- 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
Latest Trends Related to Performance Testing
-preview.jpg)
Software Development
In-House vs. Outsourcing Software Development: What to Choose for Your Company
1,995
