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.

Azumo
VerifiedVerified by the DesignRush team for authenticity and credibility.Build Intelligent Apps for Web, Mobile, Data, AI and Cloud
Azumo builds custom web, mobile, and AI software with nearshore teams in South America, serving Meta, Omnicom, and the Discovery Channel. Its SOC 2-certified engineers delivered 40%+ search precision gains for Meta. Best fit for startups and enterprises needing U.S.-aligned nearshore development teams...
Top Services:
- AI Development
- Software Development
- Staff Augmentation
- Mobile App Development
- Big Data Analytics
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 9 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAzumo Services
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Azumo Reviews & Testimonials

Software Development Review from Michael S.
We selected Azumo to develop our software. We transitioned from another development company, so Azumo was initially responsible for migrating our existing code and environments. We are currently still working with Azumo as our nearshore software development team on adding new items to our software.

UI/UX Design Review from Anonymous
Azumo helped us migrate our existing UIs into a new framework, creating reusable components and the infrastructure needed for future development. The developer they assigned became a seamless part of our team, always punctual, responsive, and a great fit overall.

Software Development Review from Anonymous
Thanks to Azumo’s work, our product is now more scalable, optimized, and ready for a growing user base. Their team has managed the engagement effectively, keeping us updated and addressing any challenges along the way. We’ve appreciated their constant availability and proactive communication.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Groove Jones
Award WinnerRecipient of a Best Design Award for outstanding work.Award-Winning AR / VR / XR / AI / WebGl Experiences
Groove Jones is an innovative technology company that specializes in creating AI/VR/AR software solutions for a wide range of industries, including advertising, entertainment, marketing, health, and training...
Top Services:
- VR/AR
- Software Development
- Mobile App Development
- Web Development
- Web Design
- Show more
- Location
- Dallas, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 26 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGroove Jones Services
Data sourced from the agency's DesignRush profileToyota Amazon MasterCard Intel HP Comcast FX Networks Samsung AT&T Ford
Groove Jones Reviews & Testimonials

VR/AR Review from Sam Rogers
The fine folks at Groove Jones really delivered with this project!See for yourself at https://4-h.org/clover/activities/rockets-to-the-moon/Our organization had worked with them before, but this was my first time...and my first time working with an AR project at all. Giving all the stars in all the categories isn't something I do much of, but in every way Groove Jones earned it.From the beginning, they got the intention and guided us through the choices needed to keep us within our fixed budget and immovable timeline. The team consistently delivered what we needed to get approvals from our internal and external stakeholders, and worked with us when we faced unexpected delays and technical surprises. We're just launched and already looking for the next opportunities to work with Groove Jones again! Totally professional, and totally fun :) They really made our team and our brand look good.

VR/AR Review from Amy Chao, CMP
The client had an exceptionally positive experience with Groove Jones. The agency delved into new technology boosting user experience, ensuring it aligned with the existing environment and was multi-channel compatible. Groove Jones in less than 90 days unveiled an interactive platform that was not only visually captivating but also had a striking impact. Throughout the journey, it remained communicative, promptly addressing modifications and infusing their unique insights. (verified via email)

VR/AR Review from Alan Fletcher
The client collaborated with Groove Jones on a challenging initiative, marked by a lofty yet vague objective and a pressing deadline. Discovered through online research and having no prior association, the collaboration swiftly took off. In merely three months, Groove Jones conceptualized and constructed a 20x16x10 Holodeck for the client's participation in the MWC event in Barcelona. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSolving complex problems with design and technology since 2005.
We create digital products that streamline operations, grow your audience, and boost business success. Partnering with visionary brands, we transform ideas into impactful solutions using innovative design and technology. Discover how our Software Development expertise can elevate your next project...
Top Services:
- Web Development
- Web Design
- Mobile App Development
- UI/UX Design
- Software Development
- Show more
- Location
- Zagreb, Croatia
- Number of Employees
- 250 - 499
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 24 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsInfinum Services
Data sourced from the agency's DesignRush profilePorsche Nike CITI Royal Caribbean Philips Bayer T-Mobile P&G Universal Virgin Mobile
Infinum Reviews & Testimonials

Mobile App Development Review from Matic Debelak
Workstream 1: research and product strategyWorkstream 2: ETP release Technology : Vendor use Flutter framework, which allows one programming language and one codebase to create two different apps (for iOS and Android). Clearly defined roles and responsibilities, communication is clearly and respectfully, very effective project methodology, trying to understand every time how their activities fits into mission of Modra zavarovalnica, respect each member of team, etc.

Software Development Review from Claus-Peter Mueller
We have engaged Infinum to develop an app that would digitalise our leasing process. From creating the initial offer through the necessary financing application and client identification to the final signature – all the steps required to successfully lease a vehicle or other object can be performed in-app, freeing the users of friction and having to deal with tedious paperwork.The app itself in the background has 30+ integrations, while keeping a seamless and quick to follow process on the front for our users. That application is in production and Infinum is responsible for maintaining it and further improving. After the initial development, we have additionally expanded our scope from vehicles to other equipment. They have also developed a Leasing widget, product which enables quick financing model while purchasing a vehicle online on car seller marketplace pages. At this moment, we are still in partnership with Infinum, and their engagement is mainly focused on localising the app to other countries and supporting us in our further business expansion. The work performed was done in Ruby on Rails and React technology, with support of other services.
Web Design Review from Anonymous
Thanks to Infinum's website refresh, the client has seen an almost 100% improvement in their website's conversion rates. The team excels at project management, using the client's own proprietary tool and also Figma very well. Their proficiency in design, delivery, and client relations stands out.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTogether, 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...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- Web Development
- Staff Augmentation
- Show more
- Location
- Lviv, Ukraine
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 12 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCHI Services
Data sourced from the agency's DesignRush profileVodafone Lecre Media Mrkt
CHI Reviews & Testimonials
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Web Development Review from David Gornshtein
My company was looking for a development team to proceed with the development process. We needed to set up a service [that] allows our clients to monitor, control, and optimize their Cloud & SaaS spend. [The] CHI Software team delivered services and technologies we need[ed] to reach our financial goals. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsZoho consulting, development and integration services for operationally complex organizations.
CodeStringers helps growth-stage and small-to-mid-market companies implement, integrate, and operate Zoho-centered digital enablement solutions by combining senior executive consulting, cost-effective delivery teams, and custom software capabilities when needed...
Top Services:
- Software Development
- AI Development
- Web Development
- CRM Consulting
- ERP Consulting
- Show more
- Location
- Santa Cruz, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $50,000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCodeStringers Services
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CodeStringers Reviews & Testimonials

Software Development Review from Lori Feld Oakley
Our Services organization is scaling quickly and we urgently needed a custom software application to automate our workflows, without breaking our annual budget. CodeStringers was the perfect fit, supporting us from ideation through go-live and everything in between. They innovated, hit their deadlines and released an amazingly high quality application that decreases our internal costs and improves our reputation with our customers. It would not have happened without CodeStringers.

Enterprise Review from Christian Schraga
CodeStringers is the perfect outsourcer to call If you have a solid software business idea but don’t know exactly how to bring it to life. They have both a top-notch development team as well as an executive staff with expertise in marketing, finance, and general business acumen. So they can not only build a product for you but they can make sure that the product you want to build is likely to succeed in the marketplace.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsYOUR IOT PARTNER
Indeema is a global IoT engineering company. Our team works across the entire technology stack, including firmware development, electronics engineering, cloud platforms, data processing, and web and mobile applications...
Top Services:
- Software Development
- IoT
- Mobile App Development
- Wearables
- AI Development
- Show more
- Location
- Wroclaw, Poland
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsIndeema Software Services
Data sourced from the agency's DesignRush profileUDB Viking Scada Ads blocker UBreez Dol-Sensors Alice ShotKam Dog Cloud iReDS
Indeema Software Reviews & Testimonials
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Mobile App Development Review from Ted Selden
They actually suggest things to us. They find better ways of doing things, so they really strive to give their input and their suggestions, which is really nice rather than just building something we are asking them to build.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsFull Service - Mobile App, Software & Web Development Company
Mystic Media is a full-service technology agency specializing in custom software, mobile app, web, and firmware development. Our experienced team works closely with startups, growing businesses, and enterprise organizations...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- AI Development
- Cloud Consulting
- Show more
- Location
- Sandy, Utah
- Number of Employees
- Under 49
- Average Hourly Rate
- $160/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 12 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMystic Media Services
Data sourced from the agency's DesignRush profileKT Tape Tata Chemicals Won-Door BioWave QuickShot Supply Bean Trailer Bingoat Western Line Constructors Huck It Monarch Education
Mystic Media Reviews & Testimonials

Mobile App Development Review from Makaila Malungahu
Working with Chris and Mystic Media was the best decision. They designed and built our peer-to-peer wedding and event rentals app from scratch, and it looks and works great! We're super happy with our project!
Makaila Malungahu's Review Sourced from Google
Working with Chris and Mystic Media has been great for our huge app development project and excited to continue working with them. Don't hesitate to reach out to them!
Bryan Pratt's Review Sourced from Google
Mystic Media has been excellent to work with, offered great value, and their expertise and project management has been evident throughout the development process. We hired Mystic to take an idea and concept drawings through UI/UX and graphic design, programming and development, all the way to the market. They have met or exceeded all milestones, even with significant additions to scope along the way. We're currently in beta testing before release, and we are very satisfied with the entire experience. Mystic has earned my unqualified endorsement for anyone looking to develop their first app with them, as we have done.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsYour Innovation Partner
ITRex delivers end-to-end AI and data solutions from strategic planning to real-world deployment. The companys expertise spans LLM integration, RAG, copilots, SLMs, and autonomous AI agents, all engineered for reliability and scale...
Top Services:
- Software Development
- Mobile App Development
- Software Testing
- AI Development
- IoT
- Show more
- Location
- Aliso Viejo, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsITRex Group Services
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ITRex Group Reviews & Testimonials

IT Services Review from Tammy Walker
Extremely creative and awesome company name. It sounds trustworthy.

Web Development Review from Undisclosed
We are making in minutes things that our teams have been stuck with for days before.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsUnleash Your Digital Potential
We are Flying Bisons, the full-service leading digital consulting company.We craft meaningful experiences for millions of people around the globe.We help big brands and disruptive start-ups supercharge their performance with digital services...
Top Services:
- Product Design
- UI/UX Design
- Market Research
- Business Consulting
- Digital Strategy
- Show more
- Location
- Warsaw, Poland
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFlying Bisons Services
Data sourced from the agency's DesignRush profileKFC Saudi Aramco Panattoni PwC IKEA Burger King Zain Domino's Pizza Bank Pekao SA Booksy
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...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- AI Development
- Staff Augmentation
- Show more
- Location
- Raleigh , North Carolina
- Number of Employees
- 250 - 499
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDualboot Partners Services
Data sourced from the agency's DesignRush profileElevation Church Lexipol DebtBook Boardroom Insiders PrizePicks PetScreening Continental flyExclusive Jib Jab CRDN
Dualboot Partners Reviews & Testimonials
Nelson Santini's Review Sourced from Google
Phenomenal team to work with. From Sales to Engineering, Customer Service and at the highest level of leadership, the DualBoot partner team is simply great.They are consistent and interested in your success. Once their engineering team has learned your stack, you can't tell from inside to external resources. Work just gets done. I recommend them w/o reservations; start-up or well established firm, you are in great hands with the DualBoot team!
Geoff Eloge's Review Sourced from Google
Dualboot has been a great partner for our fintech startup. Their knowledge and expertise have been critical in guiding us towards launch. We'd highly recommend them for anyone who needs a trusted technology partner.
Dan Sperau's Review Sourced from Google
We have been working with Dualboot for close to a year and the process is perfect. The team is responsive, knowledgeable and talented. The Dualboot team has taken the idea of software and allowed it to be simplified for non-tech minded people. I would recommend them to anyone.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe deploy secure AI solutions that deliver positive ROI within weeks.
NineTwoThree AI Studio is a Boston-based AI agency that builds secure, production-grade AI and ML solutions with measurable ROI. Founded in 2012, our Ph.D.-level engineers and certified product managers have delivered 150+ projects for enterprise brands and startups alike...
Top Services:
- AI Development
- Mobile App Development
- IoT
- Software Development
- DevOps Consulting
- Show more
- Location
- Danvers, Massachusetts
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsNineTwoThree Services
Data sourced from the agency's DesignRush profileFanDuel Consumer Reports VSAC Skylight Raycon K&L Wines Prisonology Dataflik Wheels Now Amerit Fleet
Precise Engineering. Here.
At LKICORP®, we provide expert engineering services to clients across a range of industries. Our team of skilled engineers has experience in mechanical, electrical, and environmental engineering, among others. We work closely with our clients to understand their unique needs and develop customized solutions...
Top Services:
- Mobile App Development
- Software Testing
- VR/AR
- Blockchain
- Software Development
- Show more
- Location
- Pittsburgh, Pennsylvania
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $300/hr
- Minimal Budget
- $50,000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsLKICORP Services
Data sourced from the agency's DesignRush profileHigher Education Industry Finance Industry Government Industry Agriculture Industry Fintech Industry Automotive Industry Construction Industry Consumer Goods Industry Entertainment Industry eCommerce Industry
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