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.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

Goji Labs
VerifiedVerified by the DesignRush team for authenticity and credibility.AI LeaderRecognized for strong visibility across AI-powered search and answer engines.+1Award WinnerRecipient of a Best Design Award for outstanding work.We Define the Right Build Before We Start It.
Goji Labs builds custom web and mobile apps, AI-powered products, and digital platforms for startups and nonprofits, with clients like WWF and WHO. It serves healthcare, fintech, and media verticals. A practical fit for early-stage startups and mission-driven organizations needing a product partner...
Top Services:
- Mobile App Development
- Software Development
- UI/UX Design
- AI Development
- Web Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 23 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGoji Labs Services
Data sourced from the agency's DesignRush profileWorld Wildlife Fund K-ID City of Los Angeles TGS Kangarootime World Health Organization Prediction Strike American Kennel Club Youth on Their Own Root Insurance
Goji Labs Reviews & Testimonials

Web Design Review from Michael Krone
We partnered with Goji Labs for a complete app build, and they delivered exactly what we needed. Their team handled the entire project professionally and with great care from start to finish. I would highly recommend Goji Labs to anyone seeking a skilled and dependable development partner.

Software Development Review from Wilson Rapp
We brought Goji Labs on board for a major migration project, and the entire experience was smooth and well-managed from start to finish. We could not be happier with the results. Their expertise gave us confidence throughout the process, and we would not hesitate to work with them again.

Mobile App Development Review from Sheila Reddy
As a founder with just an idea and a business model, I needed a partner who could turn that vision into a real product. Goji Labs guided me through every step of the process and built exactly the app we needed. Their expertise and patience made the entire journey manageable and rewarding.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Cubix
VerifiedVerified by the DesignRush team for authenticity and credibility.Building Custom Software and Game Development Solutions Since 2008
Clients cite responsive delivery and strong technical communication. Cubix ships production-ready software across React, Flutter, and enterprise ecommerce stacks, serving Fortune 500 accounts including Sony, Walmart, and PayPal since 2008.The Florida-based firm completed one mobile app in under six months...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- AI Development
- eCommerce Development
- Show more
- Location
- West Palm Beach, Florida
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 21 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCubix Services
Data sourced from the agency's DesignRush profilePolitico Big Fish Games Walmart Tissot Sapient Canon WhiteCastle Dreamworks DataStream Artizone
Cubix Reviews & Testimonials

Mobile App Development Review from Joe Foss
Cubix is a great partner and has consistently delivered high value and strong solutions for the concepts and features we look to implement into or daily workflows.The team is responsive, understands our model well, and provides a high level of quality on time. It has been a pleasure to work with them for over 5 years and counting.

iPhone Review from Omar Khaled
Team at Cubix are very professional. They are capable of developing anything and in high quality in a short amount of time. However, you need to be very clear with your expectations to avoid any delays.

Gaming Review from Jean Franco Rivera
The Domino NFT Game, also known as "Domino Earning World (DEW)," is a decentralized blockchain-based gaming platform that will bring together millions of domino enthusiasts in a community where you can buy, make your own, host games and tournaments at domino centers, with rewards such as real cash prizes, and morCubix, With its headquarters in Florida, USA, serves my company in the development of DEW for a worldwide deployment supporting innovative digital products that help me reach my goal
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsYour Custom Product Lab
We are a leading app design and development company headquartered in Texas, with a dedicated development center in India. With over 75 talented employees, we have successfully delivered 100+ projects across various industries...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Blockchain
- IoT
- Show more
- Location
- Houston, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 13 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSimublade Services
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Simublade Reviews & Testimonials

Mobile App Development Review from Undisclosed
Simublade developed a mobile application for a liquor delivery company. Their work also included design and user interface. The application is now complete and awaiting launch in the App Store. The client is happy with Simublade’s work, particularly their superior customer service and the personal touch they put on their work. The team stuck to deadlines and communicated clearly during the project.

Software Development Review from Quinn Favret
Simublade provided frontend development with React. Their team integrated the system to API endpoints. Simublade has built a functional frontend. The code has become an integral part of the business. Their team was communicative and flexible. The work was very clean and well-organized.

Web Development Review from Roy de la Rosa
From scratch, Simublade designed and developed a social justice application for iOS and Android. The team implemented a feature to temporarily maintain deleted items in the Cloud. They also developed a website. Simublade delivered a product that not only exceeded the client’s expectations but also received positive user feedback for its modern aesthetic and innovative features. The team provides guidance to support lasting collaboration. Their timeliness and commitment result in a valuable partnership.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsPowerful Tech Products Start-to-End
Proud 2024 Webby Award winner in the Responsible AI category and winner of the European Technology Awards for App Development in 2021...
Top Services:
- Mobile App Development
- Web Development
- Software Development
- Web Design
- IoT
- Show more
- Location
- Cluj-Napoca, Romania
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 68 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsWolfpack Digital Services
Data sourced from the agency's DesignRush profileNo7 Pro Derm Scan Everon Juggle Brain Capture Deezer Equality AI Citizen Mint Primary.Health Banqup Slow Delta
Wolfpack Digital Reviews & Testimonials

Mobile App Development Review from Julie Dodkins
Wolfpack Digital has skilled expertise [in] creating high-quality work. The team made the process straightforward. Their communication was top-notch. They're readily available and go above and beyond. (Verified via email)

Mobile App Development Review from Jana Kazmina
Bounce rate fell and the app received positive reviews from users. Wolfpack Digital was highly accessible via multiple modes of communication and managed the project professionally. They ensured comprehension by asking clarifying questions and demonstrated their flexibility and passion.

Mobile App Development Review from Valentin Trif
The app was launched on schedule and received positive reviews. Wolfpack Digital was highly accessible and effectively managed a changing scope, while still providing multiple options for every decision. Their deep engagement, as well as their flexibility, makes them an ideal partner for startups.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsYou Think It, We'll Build It.
Idea Maker is a U.S.-based software development agency helping businesses transform ideas into scalable digital products. Our expert team specializes equally in mobile apps, custom software, AI-powered solutions, and modern web platforms...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- AI Development
- Web Design
- Show more
- Location
- Irvine, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 10 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsIdea Maker Services
Data sourced from the agency's DesignRush profilePlane Fax Generac Politifact Outschool Advance CPE AES Blodgic Fujikikai Yellowbook CPE
Idea Maker Reviews & Testimonials

Software Development Review from Jessi Navarro
IdeaMaker supported Poynter's Digital Experience work and our PolitiFact site migration to Wordpress. The migration launched successfully, moving our infrastructure forward significantly at a pivotal time and we appreciated their help getting us onto the new system.

Web Development Review from Meghan Wallace
When you're launching a nonprofit from scratch, every resource matters and Tom stepped in with extraordinary generosity. He brought his team in to help build the Survive Out Loud website, and the result is something were genuinely proud of.Tom and his team didn't just build a site. They listened carefully, asked thoughtful questions, and translated our vision into something clean, professional, and aligned with our mission. They were patient, collaborative, and incredibly responsive throughout the entire process.For a small organization trying to get off the ground, this kind of support is transformational. We are deeply grateful for Tom and his team and would recommend them without hesitation

Software Development Review from Kevin Nagel, MBA
IdeaMaker did an amazing job developing our cutting-edge software. They took our concept and turned it into a fully functional, scalable software platform that truly brought our vision to life. Their technical expertise, clear communication, and problem-solving mindset made the entire process seamless. IdeaMaker consistently delivered high-quality work on time and with care. We couldn't have asked for a better development partner!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsMobile & Web Software Dev Team
Kernelics is a boutique web and mobile software development firmfor startups and tech companies...
Top Services:
- Mobile App Development
- Staff Augmentation
- Product Design
- Software Development
- eCommerce Development
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 18 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKernelics Services
Data sourced from the agency's DesignRush profileSmall Business Industry Fintech Industry Marketing Industry
Kernelics Reviews & Testimonials

Staff Augmentation Review from Dzmitry Novikau
I worked with Kernelics on a crypto project where we needed help with both design and development. From the beginning, the team was easy to communicate with and clearly understood what we were trying to build.The designer improved our initial ideas by making the user experience more intuitive. They suggested better ways to structure the navigation and user flow, which helped reduce friction and made the product easier to use.We also brought in one of their developers, who worked alongside our existing team member. They collaborated well, completed the work on time, and handled some challenging parts of the exchange functionality without any issues.Overall, Kernelics delivered quality work, stayed within budget, and were professional throughout the process. I’d recommend them to others looking for a reliable design and development partner, especially for crypto or fintech projects.

Web Development Review from Stsiapan Kolesau
I CEO at the construction company specializing in modular buildings and their components. With years of experience and multiple projects, we decided to expand our online presence beyond our two existing landing pages. We needed a corporate portal to showcase products, manage content easily, and dynamically calculate product costs.On a recommendation, we chose Kernelics, and their organized approach and clear task division impressed us from the start. They began with an in-depth analysis of our needs and a competitive review. For the design, we requested a minimalist style, and the results were spot on, requiring only minor tweaks to meet our expectations.For development, Kernelics selected React, Next.js, and TypeScript, with Strapi for the admin panel. They also integrated Google Sheets to handle dynamic price calculations, enabling instant updates on the site by simply modifying the spreadsheeta feature weve found incredibly useful.Now, two years later, the portal continues to support our growth, and were planning new developments for our main site.Kernelics stood out for their transparent approach and professionalism at every stage, and I confidently recommend them to anyone seeking a reliable web development partner.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsVirtual Technology Office - An extended execution arm of a CTO.
Facing challenges to scale up tech? Have a biz/tech requirement but no bandwidth to execute? Too many tech projects eating up your time to focus on core business? Connect with us. We provide fractional CTO services in build-operate-transfer models...
Top Services:
- IoT
- Software Testing
- AI Development
- Blockchain
- Mobile App Development
- Show more
- Location
- Bengaluru, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsOpenTurf Technologies Services
Data sourced from the agency's DesignRush profileZeta Terrapay DishSling Dubai Islamic Bank YouCloud Factoreal YABX Burpple Comviva Lifedata.ai
Supporting Entrepreneurs to Launch, Grow & Exit
Audax drives businesses forward with innovative, tech-driven solutions, specializing in software development, data analytics, and web and mobile app development. We partner with entrepreneurs and organizations to formulate, execute, and evaluate their digital strategies, providing cost-effective and efficient...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- UI/UX Design
- Business Consulting
- Show more
- Location
- Winnipeg, Canada
- Number of Employees
- 100 - 249
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAudax Ventures Services
Data sourced from the agency's DesignRush profileFundEze Sharp Emerson Global HVA Intel MigrateEzy The World Bank SAP United Nations
Your Prime Axis of Digital Excellence.
With Prioxis as your software development partner, every idea becomes a possibility, every vision a potential reality, and every goal an achievable milestone. Join us on this journey of innovation and excellence as we usher in a new era of tech transformation together...
Top Services:
- Software Development
- Cloud Consulting
- DevOps Consulting
- Mobile App Development
- Web Development
- Show more
- Location
- Ahmedabad, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPrioxis Services
Data sourced from the agency's DesignRush profileKunto TechMed VoiPLy
Prioxis Reviews & Testimonials
Parth Gondaliya's Review Sourced from Google
I had a wonderful experience working at Prioxis Technology. The environment was professional, collaborative, and supportive — allowing me to grow both personally and professionally.
Vishwa Trehan's Review Sourced from Google
I had a opportunity to work as a consultant with Prioxis. It was a great experience. Team is highly supportive. I am grateful for the chance to contribute.
yuva sainathareddy's Review Sourced from Google
Great place to work with- I have worked with Prioixs and had a really good experience. The opportunity to work with Fortunate 500 client base and innovative solutions has really helped me sharpen my knowledge. The management and HR team were very supportive and quick to respond to any questions. Everyone was professional and easy to work with.The team I worked with was great too. I got the chance to work closely with talented people and build good connections. Overall, it was a positive and smooth experience working at Prioixs.For any professional with instinct for continuous learning and urge for excellence, Prioxis is the perfect choice to build and grow your career
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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