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 are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.
United States ×
Upsource Your Custom Software Development.
CodeStringers is an uncommon software development firm that brings innovation, craftsmanship, and integrity to the development of best-in-class cloud, web and mobile software products. We provide end-to-end product strategy, release planning, software development and quality assurance solutions. [... see all CodeStringers reviews ]- Location
- Santa Cruz, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $50,000 & Up
Molding the Future with Big Data and Video Innovation
Trusted by industry leaders such as Orange, Discovery, and Vodafone, Oxagile specializes in developing custom AI, OTT, and AdTech solutions tailored to specific business needs. [... see all Oxagile reviews ]- Location
- New York City, New York
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Full-service Software Agency for Startups and SMBs
A full-service software development agency for startups. We build Software Products, Mobile Apps, IoT, and AI and ML products. [... see all Finoit reviews ]- Location
- Irving, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Enterprise Grade App & Web Development Services
At RichestSoft, we don't just build apps; we create seamless digital experiences that automate businesses. As a leading Mobile App and Web Development Company, we partner with visionary companies to bring their ideas to life, blending their vision with our cutting-edge technical expertise to spark future [... see all RichestSoft reviews ]- Location
- New York City, New York
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 9 Projects Listed
Web Solutions That Build Businesses
SITE IT NOW provides professional Website Designing & Development, Search Engine Optimization, Social Media Marketing, Mobile App development, and Secure Hosting Solutions. [... see all SITE IT NOW reviews ]- Location
- Chicago, Illinois
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 6 Projects Listed
The power of together
Pwrteams builds and operates tech and engineering teams for companies of all sizes. We specialize in attracting and retaining skilled experts from Central and Eastern Europe, including Poland, Bulgaria, and Ukraine. [... see all Pwrteams reviews ]- Location
- New York City, New York
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Your Partner in AI & Custom Software Excellence
Geniusee is a U.S.-based AI and software engineering company with delivery hubs in Ukraine and Poland. We help businesses modernize legacy systems and scale faster through AI-powered, cloud-native solutions. Our team of 300+ experts has delivered 200+ projects for clients like Dell and Bloomberg. We [... see all Geniusee reviews ]- Location
- Austin, Texas
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 11 Projects Listed
Leading Edge. Lasting Impact.
Troy Web Consulting is a trusted guide for organizations, delivering high-quality, practical software solutionscustom web apps, mobile apps, and websiteson time and on budget. We specialize in solving business challenges through custom tailored software development. [... view Troy Web Consulting profile ]- Location
- Cohoes, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $155/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 27 Projects Listed
Big ambition. Small steps. Great results
US based custom software development company with local presence in New York, Seattle and Bogota that has a strong industry focus on FinTech, E-Commerce and Blockchain industries. Besides being a great IT employer, we have been featured in Global Outsourcing List. [... view Altarey profile ]- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 9 Projects Listed
Your CRM Success Partners
A leading Salesforce Consulting Company with more than 2000+ projects delivered and a Salesforce Crest & MSP partner, HIC Global Solutions specializes in end-to-end Salesforce consulting and cloud-based custom solutions for growing businesses. [... see all HIC Global Solutions reviews ]- Location
- Milwaukee, Wisconsin
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 3 Projects Listed
Envision Leverage Infinite
A global technology outsourcing and custom Development Company with expertise into diverse Web Development, Custom Software and Mobile Applications. [... see all Cmarix reviews ]- Location
- Temecula, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 38 Projects Listed
Cider Is the Leading Software Development Company in the San Francisco Bay Area.
Cidersoft builds compelling apps and websites that will strengthen the success of your business. [... see all Cidersoft reviews ]- Location
- San Ramon, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $65/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Digital Product Agency Building World-Class Healthcare.
We help Digital Health Startups, Clinics, and MedTech companies ideate, design, and develop custom web & mobile applications that transform the future of the industry. [... view Light-it Health profile ]- Location
- Miami, Florida
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 12 Projects Listed
Building Software. Delivering Value
ORIL is a software development company that enable companies in Real Estate, FinTech, Transportation and Automotive, and more deliver intuitive, user-friendly digital products. Our team combines technical expertise with domain-specific knowledge to deliver high-quality digital products t [... view ORIL profile ]- Location
- Miami, Florida
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Specialized in Methodologies, Products & Services
Novacomp is a leading regional IT services company with over 25 years of experience assisting businesses in their digital transformation through solutions such as IT outsourcing, dedicated teams, IT consulting, staff augmentation, QA and software testing, app development, cloud services and more. [... view Novacomp profile ]- Location
- Miami, Florida
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
Stress-Free Website Development, Maintenance, Logo Design, Copywriting Services.
STL Website Development specializes in minimalistic website development, maintenance, logo design, and copywriting services, ensuring a professional touch in every project. The agency's approach prioritizes collaboration and creativity. As such, STL Website Development brings the client's vision to life while [... view STL Website Development profile ]- Location
- St. Louis, Missouri
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 15 Projects Listed
Trigger your Imagination!
Trigma is a leading software development company with over 15 years of industrial experience. We specialize in Custom Software Development, Mobile & Web App, Cloud Consulting, Artificial Intelligence, and AR/VR solutions. With a team of over 200 professionals, we deliver unique, cost-effective, [... see all Trigma reviews ]- Location
- Las Vegas, Nevada
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Custom Software Development
Coreteka is an IT services provider with R&D offices in Eastern Europe and 8 years of experience in custom software development. We have offices in Irvine (the USA), Wroclaw (Poland), and Kyiv (Ukraine). [... view CoreTeka profile ]- Location
- Irvine, California
- Number of Employees
- Under 49
- Portfolios Count
- 13 Projects Listed
Creating Impactful Software Solutions
Binmile is a globally recognized software engineering company that empowers businesses to excel digitally and craft successful software solutions. [... see all Binmile reviews ]- Location
- Claymont, Delaware
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 11 Projects Listed
Agile and Client Centric Software Development
Captus Technologies offers professional services since 11+ years for more than 2300+ website developed. We have worked variety of industries such as Retail, Real Estate, Logistics, Healthcare and many more. We have Developed 1100+ Brands across the world. Our certified mobile app developers is committed to [... view Captus Technologies profile ]- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $10/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 14 Projects Listed
Build Your Intelligent Enterprise Business Applications
Fingent is a global custom software development company helping businesses turn their digital ambitions into reality. With over 20 years of experience, we specialize in building scalable, secure, and innovative technology solutions that drive operational excellence and business growth. [... see all Fingent reviews ]- Location
- White Plains, New York
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Transforming Businesses Into Brands.
We are a Full Service Digital Marketing Agency! Our team is technically and professionally equipped to make every brand a success story. [... view The MediaGale profile ]- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 16 Projects Listed
Simplifying Business Needs Using Technology
At Avidclan Technologies, we are at the forefront of merging innovation with excellence, delivering cutting-edge solutions in the realm of technology. Experience the pinnacle of technological advancement and unparalleled service at Avidclan Technologies. [... see all Avidclan reviews ]- Location
- Sterling, Virginia
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
Your Technology Partner in Growth & Innovation
Quokka Labs is an AI App development company specializing in AI-native web and mobile app development, known for delivering intelligent, innovative, and custom digital solutions. [... view Quokka Labs profile ]- Location
- Austin, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 35 Projects Listed
Award Winning Software Development Company
Incorporated in 2013, axiusSoftware is an Award Winning, ISO 9001 & ISO 27001 certified Software Development & Digital Consulting company, with registered offices in India, USA, Singapore and China [... see all AxiusSoftware reviews ]- Location
- Charlotte, North Carolina
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 13 Projects Listed
Engineered for Success
BeeSoul is a creative branding and web design studio dedicated to helping purpose-driven businesses and entrepreneurs thrive through intentional design. Specializing in visual storytelling, BeeSoul crafts soulful brand identities, strategic websites, and cohesive digital experiences that align with clients [... view Beesoul profile ]- Location
- Richmond, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 12 Projects Listed
Custom Software Development, Mobile App Development and Blockchain Development Company
CDN Solutions Group is a leading Blockchain development company, Custom Software, Web and Mobile App development services in USA, AU, and India. We are an ISO 9001:2015 certified IT Solutions Provider company delivering innovative services globally. [... see all CDN Solutions Group reviews ]- Location
- Phoenix, Arizona
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 10 Projects Listed
Award-winning UI/UX design for financial apps
Devexperts develops and designs innovative financial software solutions. Their signature modern, sleek UI is used by some of the industry's largest trading platforms, including Avatrade, Deriv, FTMO, Eightcap, Freestoxx, CEX.IO, and many more. [... see all Devexperts reviews ]- Location
- Jersey City, New Jersey
- Number of Employees
- 500 - 999
- Portfolios Count
- 8 Projects Listed
We integrate, innovate, and elevate enterprise systems.
Intellectsoft, with 13 years of expertise, champions modernizing systems and enhancing app portfolios. Through our systematic development lifecycle, from planning to maintenance, we offer reliable, modern solutions. [... see all Intellectsoft reviews ]- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 7 Projects Listed
Bringing ideas to life one step at a time.
Kaizen Apps specializes in innovative application development, offering personalized consultations to turn your ideas into impactful digital solutions. Start your project with our expert guidance today. [... see all Kaizen Apps reviews ]- Location
- Vacaville, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $65/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Revolutionizing the SaaS Experience.
Welcome to AppsNative SaaS Lab, We're not just another tech company; we are your partners in digital transformation. Our cutting-edge SaaS solutions are designed to elevate your business to new heights, streamlining operations, boosting productivity, and driving growth. [... see all AppsNative SaaS Lab reviews ]- Location
- Lakeville, Minnesota
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 11 Projects Listed
Attitude. Altitude. Gratitude. Repeat
Softude Infotech Pvt Ltd, is a CMMI Level 5 appraised software development company with 19+ years of experience. [... see all Softude Infotech Pvt Ltd reviews ]- Location
- Houston, Texas
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 20 Projects Listed
Tech and Software Solutions at Best!
Velvetech, a reputable custom software development company, offers a wide range of services to accelerate project delivery. Contact us to know more! [... see all Velvetech reviews ]- Location
- Sunny Isles Beach, Florida
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 25 Projects Listed
Curl Ware, your one-stop shop for all your web development and design needs.
Our team of experts focuses on delivering top-quality services to our clients, ensuring that they receive the best results. We aim to help businesses and individuals build their online presence through effective website development, optimization, and design. Our mission is to exceed our client's expectations [... view Curlware profile ]- Location
- California City, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Portfolios Count
- 20 Projects Listed
We help business to scale!
AI & Software Development Agency. We deliver solutions across FinTech, HR & Recruitment, SportsTech, Healthcare, eLearning and others. [... see all Uinno reviews ]- Location
- New York City, New York
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $45/hr
- Portfolios Count
- 13 Projects Listed
Delivering Quality Products and Premium Services
Prismetric is a leading technology partner delivering future-ready AI-driven software solutions tailored to modern business needs. [... see all Prismetric reviews ]- Location
- Jersey City, New Jersey
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $18/hr
- Portfolios Count
- 21 Projects Listed
Software Development Company
Our company was founded in 2008 as a mobile app development agency, and after it turned into a full-cycle software engineering house that working in with web apps development, mobile apps development, QA & Testing. We offer our clients competitive rates, high expertise and reliable conditions of [... view SoftTeco profile ]- Location
- Wenham, Massachusetts
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 12 Projects Listed
Premiere Mobile Applications
We are a design and development agency specializing in mobile applications. We provide tailor-made development solutions for small businesses and enterprises looking to maximize their mobile presence. [... see all TouchZen reviews ]- Location
- Irvine, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 10 Projects Listed
Developing the best solutions for you
We at Inventix believe in enhancing the world through app-driven experiences. [... see all Inventix Labs reviews ]- Location
- New York City, New York
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 18 Projects Listed
Redefining Healthcare With Digital Transformation
Cabot Solutions Inc. is a well-established company with a decade-long track record of successful projects in the United States and Canada across various industry domains, technologies, and areas of expertise. [... see all Cabot Technology Solutions reviews ]- Location
- Cleveland, Ohio
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Portfolios Count
- 5 Projects Listed
Your Preferred IT Solutions Provider.
Webtrack Technologies comprises a team of seasoned and proficient web developers and designers. Our specialization encompasses a wide range of web development technologies, allowing us to deliver innovative and customized solutions precisely aligned with your unique requirements. [... see all Webtrack Technologies reviews ]- Location
- Phoenix, Arizona
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Portfolios Count
- 7 Projects Listed
Build Software Customers Love
Located in Boulder, CO, Meteor Labs provides high-quality UX design & software development for clients including start-ups and Fortune 100 companies. [... view Meteor Labs profile ]- Location
- Boulder, Colorado
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 11 Projects Listed
Bridge the Gap Between Ideas & Digital Experiences
Actively identify tech & product opportunities to transform your ideas into engaging and accessible digital experiences.Our clients from Africa, US or EU enjoy great returns such as 2M monthly users or 10k downloads in the first 10 days of launching their app. [... view X2 Mobile profile ]- Location
- Wilmington, Delaware
- Number of Employees
- Under 49
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 17 Projects Listed
Cause of a Kind Solves Complex Business Problems With Custom Software and Web Solutions.
Cause of a Kind is an award winning tech startup accelerator and creative studio and our mission is to help cool people, build great products. Cause of a Kind exists to solve complex business problems for entrepreneurs, innovators, and mission-driven organizations. [... view Cause Of A Kind profile ]- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 8 Projects Listed
We build apps for the future!
Nimble App Genie is a dynamic tech agency dedicated to catalyzing creative concepts into groundbreaking digital solutions. Our expertise lies in media app development and publishing app development. [... see all Nimble AppGenie reviews ]- Location
- Houston, Texas
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 10 Projects Listed
Together, beyond expectations
CHI Software is a technology solution provider that offers a full set of software-based services from custom software development to maintenance & support. Our talented team is passionate about Generative AI, Cloud Computing, Data Engineering, and IoT. CHI's success comes from care of every client [... see all CHI reviews ]- Location
- Philadelphia, Pennsylvania
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 12 Projects Listed
Technology Transforms. We Create Transformation.
UDS Tecnologia is an IT company specializing in Agile Software Development, Cloud & DevOps Consulting, IT Staffing and Staff Aurgumentation. [... view UDS Technology profile ]- Location
- Orlando, Florida
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 9 Projects Listed
We Live & Breath Shopify
eCommerce Republic is a premier eCommerce transformation partner, delivering scalable commerce platforms and high-impact digital retail experiences. We specialize in helping brands thrive online through precision engineering, design excellence, and performance marketing. [... view ECommerce Republic profile ]- Location
- New Hyde Park, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 41 Projects Listed
Leading Mobile App Development Services & Offshore Developers Provider
ManekTech has been recognised by Microsoft for offering best-in-class solutions to customers, recently announcing its achievement of Microsoft Certified Partner Gold status as a Application Development. ManekTech is a full services Mobile Apps and Software Development company, a company of humble beginnings [... view ManekTech profile ]- Location
- Texas City, Texas
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 11 Projects Listed
Giving You The Digital Edge
Nexentis is on a mission to empower organizations with cutting-edge digital solutions. We are transforming firms that are dedicated to driving growth and innovation. [... view Nexentis profile ]- Location
- Texas City, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 11 Projects Listed
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