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
All agencies on DesignRush undergo evaluation based on professional expertise and verified client reviews. Please note that certain placements are paid partnerships.
United States ×
IT, Business, BPO, Audit, Tax and Advisory are just the beginning.
Grant Thornton LLP (US) is an IT, project management, audit, tax, AgTech, and BPO company headquartered in Chicago, Illinois with over 50 U.S. offices and access to a global network or member firms in over 135 countries. We offer a broad range of services in strategy and consulting, operations, technology and [... view Grant Thornton profile ]- Location
- Chicago, Illinois
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Overcoming challenges through apps!
Xduce is more than a technology company; we're architects of digital transformation. With an unwavering focus on innovation, we've been reshaping industries since our inception. Our influence spans across the globe, redefining businesses and markets. [... see all XDuce reviews ]- Location
- Edison, New Jersey
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Innovating with Quality and AI
We are a technology solutions company specializing in software testing, custom software development, and AI-driven software solutions. We provide top-notch, holistic solutions to enable continuous delivery of high-quality software. [... view Abstracta profile ]- Location
- Jacksonville, Florida
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $70/hr
- Portfolios Count
- 3 Projects Listed
Not Just Code - Allied Code
EMBRACING CODE AS AN ART: Our approach extends beyond the technical nuances, delving into the essence of our clients' missions. Through a deep comprehension of your business, we unveil your authentic software requirements, resulting in impactful business applications aligned with your goals. Our expertise [... view Allied Code profile ]- Location
- Phoenix, Arizona
- Number of Employees
- Under 49
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 6 Projects Listed
Enabling Excellence
iQuasar, a Northern Virginia tech leader with 20+ years of experience, specializes in Software Development, AI Integration, Web & App Development, Software Team Augmentation & More. We hold an A+ BBB rating, are verified on Clutch, and have a 97% Customer Satisfaction Rating by Dun & Bradstreet. [... view IQuasar profile ]- Location
- Sterling, Virginia
- Number of Employees
- 100 - 249
- Portfolios Count
- 5 Projects Listed
Empowering Innovations with Artificial Intelligence
Innovature is a global business consulting and technology services provider that specializes in delivering high-quality IT solutions. With a focus on digital and technology transformations, they offer custom software development and consulting services across various technology verticals, in addition to [... view Innovature profile ]- Location
- Dover, Delaware
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
AppVin | Software Development Company Netherlands, UAE, USA
AppVin Technologies excels in designing, developing, and implementing IT solutions tailored for startups, small businesses, and established enterprises. As a premier software development company, we deliver top-notch technology solutions to drive business success. Partner with AppVin Technologies to leverage [... view AppVin Technologies profile ]- Location
- New York City, New York
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $10/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
#1 in Cybersecurity, Blockchain, AI&ML, Python, NodeJS
Apriorit is a leader in smart contract development, cybersecurity services, along with advanced data management technologies. Other services offered by this IT firm include SaaS engineering, Driver development, system programming, professional reverse engineering, blockchain, AI&ML and more. [... view Apriorit profile ]- Location
- Lynn, Massachusetts
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 6 Projects Listed
Your Software Development Partner Where AI Innovation Meets Engineering Excellence
Founded in 2000, Radixweb is a global leader in AI-driven software, product engineering & digital transformation. With 25+ yrs, 650+ experts & 5,500+ projects for 3,000+ clients in 25+ countries, we deliver cloud & AI solutions across industries, driving innovation, agility & growth. [... view Radixweb profile ]- Location
- Artesia, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $25/hr
- Portfolios Count
- 24 Projects Listed
Step Towards Innovation.
Innovative software solutions for businesses of all sizes. We specialize in web and mobile development, AI, blockchain, and digital marketing, creating tailored, high-quality digital experiences to help you grow and succeed. [... view Step Tech profile ]- Location
- Prior Lake, Minnesota
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Your Vision Your Rules Your Win
JetBase helps startups and enterprises transform bold ideas into scalable digital products. From MVPs to SaaS platforms, we build software that drives growth, strengthens retention, and delivers measurable business impact with clarity, speed, and long-term value. [... view JetBase profile ]- Location
- Sheridan, Wyoming
- Number of Employees
- Under 49
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 9 Projects Listed
Premium US and Europe located team delivering tech solutions
Corpsoft.io is a seasoned team of Solution Architects, Web and Mobile Developers with over 10 years of experience. We have multiple Laravel (PHP and Custom PHP), JavaScript (React.js, Vue.js), and Flutter, Android and iOS development teams. [... view Corpsoft profile ]- Location
- Wilmington, Delaware
- Number of Employees
- 100 - 249
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 9 Projects Listed
Tailor-Made Healthcare Software!
Arkenea Inc. is a specialized healthcare software development company with 13 years of experience in the field. They offer custom healthcare software development services tailored to the specific needs of healthcare organizations and HealthTech startups. [... view Arkenea profile ]- Location
- Cary, North Carolina
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Portfolios Count
- 5 Projects Listed
Custom Software Development Company
At Frogslayer, we stabilize, build, and scale the digital products and internal systems that deliver food, fun, and unforgettable moments. [... view Frogslayer profile ]- Location
- College Station, Texas
- Number of Employees
- 50 - 99
- Minimal Budget
- $25,000 - $50,000
The Way to Quality Software
OnPath Testing provides software testing and quality assurance services for desktop, web, mobile, and IOT applications. [... view OnPath Testing profile ]- Location
- Boulder, Colorado
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Cuevasoft have dedicated team from design to deployment to grow your online business quickly.
Cuevasoft's expertise in Casino Game App Development and Satta Matka Game Development, emphasizes their commitment to innovation, customer satisfaction, and affordability. [... view Cuevasoft LLC profile ]- Location
- Wilmington, Delaware
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Digital done right.
Clockwork is an interactive design and technology consultancy. Our digital solutions transform the way businesses around the globe communicate, sell, and grow. [... view Clockwork profile ]- Location
- Minneapolis, Minnesota
- Number of Employees
- 50 - 99
The Right Software Can Change Everything
Atomic Object is a top-rated custom software design and development consultancy. Our co-located, U.S.-based team works with executives to improve their bottom line by delivering new products, enhancing existing products, modernizing legacy products, and integrating AI into their software systems. [... see all Atomic Object reviews ]- Location
- Grand Rapids, Michigan
- Number of Employees
- 100 - 249
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 1 Project Listed
Change Happens Here.
Matic is a strategy, design, and technology partner. We help teams build brands, websites, and digital products that drive growth. Trusted by GoDaddy, Nextracker, Colorado Tourism, and Toast. [... view Matic Digital profile ]- Location
- Denver, Colorado
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Propel Your Business Forward
SlickDevs is a premier custom software development company specializing in transforming innovative ideas into robust, scalable applications. With a dedicated team of experts, we provide comprehensive solutions tailored to meet the unique needs of tech startups, mid-market companies, and enterprise [... view SlickDigital profile ]- Location
- Bellevue, Washington
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $100/hr
- Portfolios Count
- 5 Projects Listed
Logic Inspired by Design
DesignersX stands tall among the leading design and development platforms headquartered in Florida, United States. Catering to businesses of all sizes, the company specializes in web apps, mobile app development, e-commerce solutions, custom Java development, and internet marketing and design services. What [... view DesignersX profile ]- Location
- Florida City, Florida
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
We're Your Partner in Your Success
Promo Design Solution is a global design company dedicated to fulfilling your software, graphic, and artwork requirements, empowering organizations to make a worldwide impact through top-notch digital experiences. As a premier provider of software engineering, software enablement, and digital transformation [... view PromoDesign Solutions profile ]- Location
- Irving, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Stop Making It Work. Start Making It Happen.
At KDG, we're your partners in growth and innovation. With our integrated approach to professional technology, accounting, and consulting services, we give modern leaders and executives control over their outcomes. [... view KDG profile ]- Location
- Allentown, Pennsylvania
- Number of Employees
- Under 49
- Average Hourly Rate
- $175/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Custom Software Solutions
Using our software solutions, our clients make smarter decisions, streamline operations, and launch scalable products tailored to their industries. Digital Mettle blends deep technical expertise with a collaborative approach, delivering custom-built tools that solve real-world problems from automation and [... view Digital Mettle, LLC profile ]- Location
- Raleigh , North Carolina
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Top Sitecore Solutions Provider
We embrace digital transformation through customer centric tactical results unleashing as a digital innovation agency.Sourceved is providing enterprise cms based solution which includes Sitecore , Umbraco , EpiServer , SiteFinity , Drupal and WordPress for all industries. [... view Sourceved Technologies Pvt Ltd. profile ]- Location
- Naperville, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
technology for innovators
Dycoders team creates solutions for tech industry from startups to businesses, and have a proven track record of providing development services to over 50 companies. Dycoders is not just a developers hub but has digital designers who can make top quality softwares including mobile apps. [... view DyCoders profile ]- Location
- Boston, Massachusetts
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 6 Projects Listed
AI Full-Stack Engineering, Automation, Machine Learning & Enterprise AI Integration
NextGen Coding Company builds custom, cutting-edge software solutions. Our mission at NextGen Coding Company is to lead the technological revolution with innovative solutions and cutting-edge expertise. We aim to empower businesses and individuals by delivering transformative digital services in Artificial [... view Next Gen Coding Company, Inc profile ]- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $70/hr
- Portfolios Count
- 6 Projects Listed
High-Level Technology for Small and Large Business.
ALFTEK offers full-service network infrastructure, system administration, network security, software development and other managed IT services. What's more, the company also integrates robust software solutions with cloud-based SaaS, PaaS and IaaS platforms for website and social & blog design. [... view ALFATEK profile ]- Location
- Concord, California
- Number of Employees
- Under 49
- Portfolios Count
- 4 Projects Listed
Giving Shape to Your Dreams
CodeAegis is a leading software development company committed to delivering excellence in every project. With a global presence in UAE, USA, Kuwait, and India and eight years of experience, we have been providing innovative digital solutions that reflect our dedication to quality. [... view CodeAegis Private Limited profile ]- Location
- Irving, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 18 Projects Listed
We build great software that builds your bottom line
Dualboot is a business and software development company. We build great software, but we base our success on whether it helps your business grow. [... view Dualboot Partners profile ]- Location
- Raleigh , North Carolina
- Number of Employees
- 250 - 499
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 3 Projects Listed
TechParrot: Where technology transforms lives.
TechParrot stands as a premier provider of Salesforce consulting services and solutions. Our comprehensive offerings encompass Salesforce implementation, integration, migration, customization, and ongoing support, all tailored to facilitate businesses in realizing their digital transformation objectives. [... view TechParrot profile ]- Location
- Florida City, Florida
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
Where Quality, Time & Accuracy are valued the most!
Founded in 2011, Serpent Consulting is an Odoo Partner with a global clientele. They offer Odoo implementation, customization, and training with a team of experienced professionals. They boast 45+ custom Odoo apps and modules, making them a leader in the Odoo space. [... view Serpent Consulting Services Pvt Ltd profile ]- Location
- Edison, New Jersey
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
Software Development Company
Artjoker is a professional software development company based in the USA, specializing in providing a wide range of digital services. We offer scalable IT solutions for businesses, including mobile application development, DevOps, and cloud services. [... view Artjoker profile ]- Location
- Texas City, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 7 Projects Listed
thoughtbot is your expert partner for product design and development.
20+ years over 1,000 clients! thoughtbot is a design and development company that helps clients lead the way through better products, faster teams, and stronger growth. [... view Thoughtbot profile ]- Location
- New York City, New York
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $175/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Tan θ Software Studio: Building the future of blockchain, one line of code at a time.
Tan θ Software Studio is a Custom Blockchain Development Company. We are a team of 30+ young engineers to build MVPs for startups and Enterprise Solutions. [... view Tantheta Software Studio profile ]- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Portfolios Count
- 1 Project Listed
Build Mobile Apps that Grow Your Business
MetaCTOÂ will transform your vision into impactful mobile apps that drive new revenue, attract more customers, and keep them coming back longer. Our mission is to make your business a technology leader in your field. [... view MetaCTO profile ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Bringing your idea to life.
We founded Create Neptune in 2015, but it was really born back when our founders were two video-game-loving kids who grew up on Neptune Avenue in Brooklyn, NY. Since founding Create Neptune we have built edutainment games for some of the largest educational institutions in the world, digital pharmaceuticals [... view Create Neptune profile ]- Location
- White Plains, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $95/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Shaping Digital Innovation.
Fusion Forge Tech crafts custom web and mobile solutions that blend sleek design with powerful functionality. We build fast, scalable, and user-friendly platforms tailored to your goals whether you're launching a startup or upgrading an enterprise system. [... see all Fusion Forge Tech reviews ]- Location
- Miami, Florida
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Nearshore Software Development
At Develop Hard we help US-based fast growing tech startups, SMBs, and Digital agencies building intelligent apps. [... view Develop Hard LLC profile ]- Location
- Albuquerque, New Mexico
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Consulting | Design | Development
Orange5 LLC is a Cincinnatibased custom software development firm specializing in .NET and Node.js frameworks. Since its founding in 201415, the agency has designed web, desktop and mobile applications tailored to small and midsize clients. With a focus on clear communication, precise execution and technical [... view Orange5 profile ]- Location
- Fairfield, Ohio
- Number of Employees
- Under 49
- Average Hourly Rate
- $85/hr
- Portfolios Count
- 1 Project Listed
Supercharge - Innovating Digital Product Development
At Supercharge, we partner with our clients to turn disruption into opportunity by creating transformative digital solutions. With over 200 digital experts across New York, London, Amsterdam, Helsinki, Vienna, and Budapest, we develop digital strategies, design delightful interfaces, and build robust software [... view Supercharge profile ]- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 6 Projects Listed
Top Mobile App and Web Development Company in Canada, USA and UK
We design highly polished iPhone, Android and Web Apps for startups and Enterprise clients. [... view MobMaxime profile ]- Location
- Sunnyvale, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $15/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
The Ultimate All-In-One Business Solution
Founded in 2007, we are a software development company that offers professional services such as project management and creative design for organizations that are open to collaboration and view vendor relationships as a value add to their company and not a mere cost center. [... view Red Hammer LLC profile ]- Location
- Tucson, Arizona
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
Precision in Software Testing, Tailored to Your World.
iBeta Quality Assurance has been a leading name in software testing since 1999, serving global clients with tailored services. We adapt to your unique needs and provide expert testers from our Aurora, Colorado lab. From flexible engagement to exceptional documentation, our customer-centric approach ensures [... view IBeta Quality Assurance profile ]- Location
- Aurora, Colorado
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $65/hr
- Minimal Budget
- $1,000 - $10,000
Solutions on Time and Within Budget
We are a highly technologically advanced company that enables the automation of business processes within various industries in a timely, innovative and reliable fashion. Our software and hardware solutions transform the world of cash and security into exceptional consumer experience. Trust Tekbees, we are [... view Tekbees profile ]- Location
- Miami, Florida
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
Smartest Software Solutions, right on time
We're a leading IT custom software firm with 30 years of experience in LATAM. Our elite 10% developer team delivers top-notch quality, speed, and affordability, as proven by clients like Motorola, Intel, IBM, and Oracle. We offer Software Dedicated Teams and Staff Augmentation to boost your project. [... view Vates profile ]- Location
- Atlanta, Georgia
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $50,000 & Up
We Are the Premier Software Consulting Firm Executives Trust To Deliver.
We are a software consulting firm that specializes in software development, DevOps, cloud services and other IT needs. Our team blends expertise to provide high-quality solutions for a variety of projects. Whether you need custom software development or help with your cloud infrastructure, CodeFutures can [... view CodeFutures profile ]- Location
- Broomfield, Colorado
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $1,000 - $10,000
Optimizing Your IT
Envision the Possibilities, Software Development. [... view Vistaar Technologies profile ]- Location
- Parsippany-Troy Hills, New Jersey
- Number of Employees
- 250 - 499
ICT Solution for World Digitalization
At Peace Global Tech, our foremost objective distinguishes us from our competitors: the unwavering pursuit of 100% client satisfaction. Our committed team of web developers and graphic designers adheres to the most exacting standards in project planning, development, and execution. We are resolutely committed [... view Peace Global Tech profile ]- Location
- Baytown, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
Engineering Partner for Grateful Outcome
Comptivia Technologies is a global IT Services and Consulting company headquarters in New Jersey USA. We work with leading companies to deliver services and technologies at scale, accelerate digital operations, develop innovative applications, and drive efficiencies throughout their organization. [... view Comptivia Technologies profile ]- Location
- Montville, New Jersey
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $70/hr
Latest Trends Related to Performance Testing
-preview.jpg)
Software Development
In-House vs. Outsourcing Software Development: What to Choose for Your Company
1,995
