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

7 Companies - Rankings updated: September 03, 2026

We evaluate every agency on DesignRush for technical expertise, delivery quality, and verified feedback to help businesses find reliable software development services. Some listings may be paid.

Performance Testing
Performance Testing × Pets × Sort by: Top Rated × Clear Filters
  • Zudu

    Award Winner Recipient of a Best Design Award for outstanding work.

    Dreams Have No Limits In A Digital World

    Why not try some top quality UK delivery. Zudu is an award-winning, industry-leading, software development agency based in London and Dundee. Our specialist team create jaw-dropping digital experiences and develop successful products...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • UI/UX Design
    • IoT
    • Show more
    Location
    Dundee, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    20 Projects Listed

    Zudu Services

    • Mobile App Development
    • Web Development
    • Software Development
    • UI/UX Design
    • IoT
    • Product Design
    • Digital Services
    • SEO
    • PPC
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • NHS
    • Asahi
    • Weir
    • Wood
    • Autins
    • Aviagen
    • Scottish Social Services Council
    • Restructa
    • LAT Water
    • University of Dundee
    Data sourced from the agency's DesignRush profile

    Zudu Reviews & Testimonials

    • Scott Taylor
      Scott Taylor Training and Development Instructor at Wiltshire and Swindon Fire Authority
      5.0

      Web Development Review from Scott Taylor

      Zudu provided me with a bespoke app for our fire safety business. It was a simple, clear and straight forward process which was completed quickly. I intend on using them further!

    • James Cadwaladr
      James Cadwaladr Co-Founder at Invive Resourcing
      5.0

      Product Design Review from James Cadwaladr

      I have been extremely impressed with Zudu’s product development, ongoing and almost immediate support at all times and also genuine understanding and commerciality of both Rik and James which has meant being able to easily translate concepts into product. Excellent UX, UI and Customer support. We look forward to a long and fruitful relationship.

    • Danny Kelly
      Danny Kelly Harm Reduction Manager at Hillcrest Futures (Previously Cair Scotland)
      5.0

      Web Development Review from Danny Kelly

      Zudu supported our organisation to develop a web app to benefit local staff working with people who use substances. Zudu went above and beyond to understand the concept by speaking with staff and visiting our service to see where the app would have the most impact. It was clear Zudu were motivated and passionate about what they do and so for us were the obvious choice for this project.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Turning your imagination to reality.

    iB Arts Pvt. Ltd., an ISO 9001:2015 certified IT services provider, has been powering global businesses to success for more than seven years! Our specialized spectrum of offerings from web design & development and mobile app development to digital marketing and branding solutions caters to all types of...

    Top Services:

    • UI/UX Design
    • Web Design
    • Web Development
    • eCommerce Development
    • Software Development
    • Show more
    Location
    Pune, India
    Number of Employees
    50 - 99
    Average Hourly Rate
    $15/hr
    Minimal Budget
    Under $1,000

    iB Arts Pvt. Ltd. Services

    • UI/UX Design
    • Web Design
    • Web Development
    • eCommerce Development
    • Software Development
    • Mobile App Development
    • SEO
    • Graphic Design
    • Digital Marketing
    • Branding
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Nano Hearing Aids
    • Beyond Basics Physical Therapy
    • Bidets Plus
    • Gamedaymenshealth
    Data sourced from the agency's DesignRush profile

    iB Arts Pvt. Ltd. Reviews & Testimonials

    • Christopher Achkar
      Christopher Achkar Founder and Employment Lawyer at ACHKAR LAW
      5.0

      Software Development Review from Christopher Achkar

      We partnered with IB ARTS to build a custom software solution tailored to our business needs. Our existing tools were inefficient, and we needed a platform to manage projects, clients, and internal workflows more effectively. IB ARTS started with a deep understanding of our processes and delivered a user-friendly system that included a project dashboard, client portal, task automation, and integrated reporting tools. They followed an agile approach, kept us involved throughout, and delivered everything on time. Since launching the software, our productivity has improved significantly, and our clients have noticed smoother communication and faster service. IB ARTS mix of technical skill and business insight made them the ideal development partner. We really enjoy our engagement with them and i highly recommend them.

    • Mandy Schwerendt
      Mandy Schwerendt CEO at LYNQTECH
      5.0

      Web Development Review from Mandy Schwerendt

      The three dashboards we developed in partnership with iB Arts Pvt LtdAdmin, Users, and Nurses helped to significantly increase operational efficiency. Throughout the process, the iB Arts team's professionalism and knowledge were clear to see. Because each application was customized to meet our unique needs, the overall experience was smooth and easy to use. We were able to launch all three applications on time and within budget because to their painstaking attention to detail and dedication to perfection. The effects were felt right away: we saw a notable increase in user engagement and operational efficiency. Our service delivery is more efficient than ever, and departmental communication has improved.

    • Lex Suurland
      Lex Suurland Co-Founder at GYLD
      5.0

      Web Development Review from Lex Suurland

      We partnered with IB ARTS to develop a responsive, high-performance website for our gaming company. Their team provided expert front-end and back-end development, ensuring seamless integration with our game servers, user accounts, and live updates. Their work helped enhance user experience, improve load times, and deliver a modern design aligned with our gaming brand. Working with IB ARTS was a highly positive experience. They were professional, responsive, and technically skilled. The team understood our gaming industry needs and delivered a sleek, functional website on time. Communication was clear throughout the project, and they quickly addressed feedback and made necessary changes. Their support post-launch was also excellent, ensuring a smooth transition and ongoing performance.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Bighorn Web Solutions LLC

    Verified Verified by the DesignRush team for authenticity and credibility.

    Your E-Commerce, Our Expertise: Magento & Shopify Solutions

    Your Shopify & Magento Development Experts. Site speed, conversion rate optimization, platform evaluations, platform migrations, theme development, ERP integration development, custom application development, headless development and more!...

    Top Services:

    • eCommerce Development
    • Web Development
    • Software Development
    • CRO
    • Web Design
    • Show more
    Location
    Sheridan, Wyoming
    Number of Employees
    Under 49
    Average Hourly Rate
    $135/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    10 Projects Listed

    Bighorn Web Solutions LLC Services

    • eCommerce Development
    • Web Development
    • Software Development
    • CRO
    • Web Design
    • IT Services
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • INTEGRATED MEDICAL SYSTEMS, INC. (IMS)
    • PSP PHARMA
    • SWOON
    • BRUMATE
    • LEVIN FURNITURE & MATTRESS
    • REP FITNESS
    • SELDENS
    • DONOVAN MARINE
    • JOHN V SCHULTZ FURNITURE
    • RACE DAY QUADS
    Data sourced from the agency's DesignRush profile

    Bighorn Web Solutions LLC Reviews & Testimonials

    • Jessica Grant
      Jessica Grant Ecommerce Director at Sports Basement
      5.0

      Shopify Plus eCommerce Review from Jessica Grant

      Bighorn has been an exceptional partner to our organization here at Sports Basement. They supported us through multiple legal and regulatory accessibility matters with a steady, knowledgeable approach, translating complex requirements into clear, actionable guidance. Throughout these engagements, their team demonstrated a strong understanding of both the legal landscape and the practical realities of building and maintaining accessible digital experiences, which gave us confidence at every step. What truly distinguishes them is that their work goes well beyond compliance. In addition to helping us identify and prioritize accessibility issues, they invested time in educating our teams on how to design and develop accessibility into our site from the start. Their recommendations are thoughtful, pragmatic, and focused on real user impact, enabling us to move from a reactive posture to a more proactive, sustainable accessibility practice. Most importantly, they operate as true partners rather than transactional consultants. Their work is clearly driven by a genuine commitment to making the web usable by all, not simply meeting minimum standards or checking a box. We would strongly recommend them to any organization looking for a strategic accessibility partner who combines expertise, integrity, and a long-term perspective.

    • Mahesh Reddy
      Mahesh Reddy Sr. Exec at Ingest Labs
      5.0

      Shopify Review from Mahesh Reddy

      BigHorn Solutions entire team is professional and easy to work with. You can easily trust them as your great partner all your you E-commerce technology needs. They are experts in Shopify and Magento solutions. My team relies on their tech expertise. We have released multiple apps on Magento and Shopify in the last 1 year. We'll continue to do so in future. Thank Calen, Chris and all the developers!! Mahesh R.

    • Tiffany Asamoah
      Tiffany Asamoah Sales Operations Manager at Martal Group
      5.0

      Software Development Review from Tiffany Asamoah

      As a lead generation agency, we required custom software development to streamline our operations and enhance our capabilities. Bighorn Web Solutions far exceeded our highest expectations. Their team's hands-on, white-glove approach was evident from the start, and their level of competency truly set them apart. Working with a global team, they delivered tailored solutions that perfectly aligned with our business needs. Their responsiveness and attention to detail made the entire process smooth and efficient. Thanks to their expertise, weve gained not only a top-tier software solution but also a valuable long-term partner. We couldn't be more satisfied with the outcome and highly recommend Bighorn Web Solutions for their superior service and dedication.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Vention

    Verified Verified by the DesignRush team for authenticity and credibility.

    Engineering peace of mind

    Vention builds custom software across fintech, healthtech, and eCommerce, for clients like ClassPass, Mount Sinai, and Slice. Its ISO 27001-certified team serves 30+ industries and over 500 clients. With 20+ years of experience, the software development firm is best for businesses needing scalable...

    Top Services:

    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Software Testing
    • Web Development
    • Show more
    Location
    New York City, New York
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    15 Projects Listed

    Vention Services

    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Software Testing
    • Web Development
    • Blockchain
    • AI Development
    • Cloud Consulting
    • CRM Consulting
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • IBM
    • PayPal
    • Cuvva
    • Costa Coffee
    • Memrise
    • Urban
    • Tailored Dog Food Delivery
    • RealVNC
    • Label on a Cable
    • ClassPass
    Data sourced from the agency's DesignRush profile

    Vention Reviews & Testimonials

    • Lee Tupper
      Lee Tupper CTO at Remotiv (formerly Financial Soundings)
      3.8

      Mobile App Development Review from Lee Tupper

      Vention has delivered excellent design prototypes and accurate time estimates. The app is still in beta mode, and the partnership with [...] Vention will [continue] until the release of the next version. Vention is a reliable team that offers quality service. (Verified via email)

    • Jon Wade
      Jon Wade CTO & Founder at Union54
      5.0

      Staff Augmentation Review from Jon Wade

      Vention’s efforts allowed the successful development of the product, resulting in new customers. They provided backend developers, business analysts, UI designers, and QA testers to develop our solution. Vention cultivated a seamless partnership through constant updates and a collaborative approach. Overall, their team’s well-rounded expertise was impressive.

    • AJ Canty
      AJ Canty CTO and Co-Founder at Primer
      5.0

      Web Development Review from AJ Canty

      We’ve been working with Vention for quite some time and consider them an extension of our team, rather than an offshore vendor. We needed solid mobile developers to work with our in-house engineers to build our Primer SDKs on both mobile platforms. This was not a trivial thing as it required a lot of cross-functional communication, but the Vention team was up to the challenge. They quickly adopted the best practices we follow at Primer and proved to be effective and proactive.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Enterprise Software Development That Reaches Production

    Redlio Labs is an Ahmedabad, India-based enterprise software development company founded in 2014. The company develops custom software and ERP systems for mid-size and large organizations and provides dedicated senior engineering teams and IT staff augmentation. It serves clients globally and reports 12+...

    Top Services:

    • Web Design
    • Web Development
    • Digital Marketing
    • Software Development
    • CRM Consulting
    • Show more
    Location
    Ahmedabad, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed

    Redlio Labs Services

    • Web Design
    • Web Development
    • Digital Marketing
    • Software Development
    • CRM Consulting
    • ERP Consulting
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Leo's Paw
    • HIKEit
    • DIG Options
    • Trak Racer
    • Pawrti
    • Bookscribs
    Data sourced from the agency's DesignRush profile

    Redlio Labs Reviews & Testimonials

    • Ruchi Hansaliya
      Ruchi Hansaliya Review from Google
      1.0

      Ruchi Hansaliya's Review Sourced from Google

      The worst experience I have had with this company. When a candidate comes for an interview, she/he will not provide a proper PC screen. So how can a candidate complete his interview? And also the hiring process is too slow.

    • TUSHAR KANJARIYA
      TUSHAR KANJARIYA Review from Google
      5.0

      TUSHAR KANJARIYA's Review Sourced from Google

      As a full stack developer at Redlio Designs, I can confidently say that this company is an absolute dream to work for. The working environment is top-notch, providing the perfect balance of professionalism and comfort. What truly sets Redlio apart, though, is its incredible team. From day one, I've been surrounded by colleagues who are not only talented but also incredibly supportive. Our seniors lead by example, offering guidance and mentorship that has been instrumental in my growth and development. Working here feels like being part of a family where everyone is genuinely invested in each other's success. If you're looking for a workplace where you can thrive both personally and professionally, look no further than Redlio Designs.

    • Angad Thakar
      Angad Thakar Review from Google
      5.0

      Angad Thakar's Review Sourced from Google

      As the Business Development Manager at Redlio Designs, I can confidently say that this is a company that prioritizes excellence and innovation in the IT industry. Working here has been an enriching experience, thanks to the supportive team, forward-thinking leadership, and exciting projects we undertake.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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

    Dualboot Partners Services

    • Software Development
    • Mobile App Development
    • Web Development
    • AI Development
    • Staff Augmentation
    • UI/UX Design
    • IT Services
    • Cloud Consulting
    • DevOps Consulting
    • Blockchain
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Elevation Church
    • Lexipol
    • DebtBook
    • Boardroom Insiders
    • PrizePicks
    • PetScreening
    • Continental
    • flyExclusive
    • Jib Jab
    • CRDN
    Data sourced from the agency's DesignRush profile

    Dualboot Partners Reviews & Testimonials

    • Nelson Santini
      Nelson Santini Review from Google
      5.0

      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
      Geoff Eloge Review from Google
      5.0

      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
      Dan Sperau Review from Google
      5.0

      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 Reviews
  • Sketch Development Services

    Verified Verified by the DesignRush team for authenticity and credibility.

    Build it. Run it. Own it.

    Sketch delivers AI-enabled custom software and DevOps via a subscription model with two-week delivery cycles, citing zero missed deadlines. Its team serves Fortune 500 clients and is best suited for product teams needing a transparent, agile dev partner without long-term contracts...

    Top Services:

    • Software Development
    • Cloud Consulting
    • UI/UX Design
    • eCommerce Development
    • DevOps Consulting
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Minimal Budget
    $50,000 & Up

    Sketch Development Services Services

    • Software Development
    • Cloud Consulting
    • UI/UX Design
    • eCommerce Development
    • DevOps Consulting
    • Staff Augmentation
    • AI Development
    • Software Testing
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • U.S. Bank
    • Centene Corporation
    • Maritz
    • Change Healthcare
    • Stifel
    • Reinsurance Group of America (RGA)
    • bioMerieux
    • CareSource
    • CENTEGIX
    • Purina
    Data sourced from the agency's DesignRush profile

    Sketch Development Services Reviews & Testimonials

    • Monica
      Monica Review from Google
      5.0

      Monica's Review Sourced from Google

      Amazing and talented people. I’ve worked for both client and agency side and can can say their partnership is amazing. They truly care about ongoing operations and not just ending it at a project level. Highly recommend! Message me if you want specifics.

    • John Andesilich
      John Andesilich Review from Google
      5.0

      John Andesilich's Review Sourced from Google

      I own a marketing firm in Troy MO and I recently met with Calvin at Sketch Development Services to discuss a software development project I have been thinking about pursuing. He was very nice, easy to speak to and even though his field is a bit out of my knowledge base, he was able to explain things in a way that made perfect sense. I look forward to working with him and his team in the future and recommend anyone looking for a software or app development company to give them a try.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews

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