Best Performance Testing Services

4 Companies - Rankings updated: April 03, 2026

DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.

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United States × Washington DC × Washington DC ×

  • Surf

    Mobile & Web Development Company

    Surf develops client and corporate solutions from scratch, covering native and cross-platform mobile apps, web apps and services, AR and ERP systems. Over 13 years, we've built apps for KFC, Mars, The Home Depot, Burger King, SAP, plus over 200 other brands.  [... see all Surf reviews ]
    Location
    Washington DC, Washington DC
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    10 Projects Listed

    Surf Services

    • Mobile App Development
    • Software Development
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • Two Native Apps for an Online Fashion Shop
      App Development Project Two Native Apps for an Online Fashion Shop
    • An App for a Luxury Clothing Brand
      App Development Project An App for a Luxury Clothing Brand
    • Digital Transformation Package For KFC
      App Development Project Digital Transformation Package For KFC
    • Family Banking App for SBI Group
      App Development Project Family Banking App for SBI Group
    • App Design for Pizza House
      App Development Project App Design for Pizza House
    • Banking App For Société Générale
      App Development Project Banking App For Société Générale
    View Full Portfolio
    Comprehensive analysis done by DesignRush Agency Experts.

    Surf Reviews & Testimonials

    • Ann Jerovski
      Ann Jerovski Bussiness director at SAP
      5.0★
      Mobile App Development Review from Ann Jerovski

      The goal was to create an AR application that helps third-party clients see the entire business process.The end deliverable was a success. Third-party clients were able to see the whole business process and decide if they needed solutions from the client. The communication with the client was smooth. Overall, the team made the corrections and implemented solutions to enhance the client's services.

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    • Anne Diganova
      Anne Diganova Business director at Love Republic
      5.0★
      Mobile App Development Review from Anne Diganova

      A women's clothing retailer hired Surf to assist in the development of their app. Thanks to Surf’s efforts, the client was able to release the app on Black Friday, saving 40% of their budget. The team was communicative, responsive, and professional throughout the engagement. They worked in a very organized way, taking into account all business needs.

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    • David Dilson
      David Dilson Delivery manager at Perfume & Cosmetics Company
      5.0★
      Mobile App Development Review from David Dilson

      Thanks to Surf's efforts, they successfully created a functional app. As a result, the volume of downloads was over 500 thousand with great ratings in the app store. Moreover, the conversion rates were excellent. Their communication skills and expertise in the industry stood out in the partnership.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Societe Generale
    • KFC
    • Burger King
    • Mars
    • The Home Depot
    • Dodo pizza
    • SAP
    • TAG
    • Twim
    • Henderson
    Data sourced from the agency's DesignRush profile
    View Profile
    4.9 4.9 (12)

  • Chop Dawg

    Meet The Partner Behind Your App's Success | Make It App'n!

    Meet your award-winning app development team, dedicated to turning your vision into scalable and profitable digital apps and software.  [... see all Chop Dawg reviews ]
    Location
    Washington DC, Washington DC
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    52 Projects Listed

    Chop Dawg Services

    • Mobile App Development
    • Software Development
    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • Web Design
    • UI/UX Design
    • Software Testing
    • Wearables
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • Dance Workout App & eCommerce Platform Revamp
      App Development Project for Consumer Goods Company Dance Workout App & eCommerce Platform Revamp
    • Real-Time Ice Cream Truck Locator App & Admin App
      App Development Project for Consumer Goods Company Real-Time Ice Cream Truck Locator App & Admin App
    • Unome VIP Membership App & Admin Portal
      App Development Project for Food and Beverage Company Unome VIP Membership App & Admin Portal
    • Slay by Mari Fitness Mobile App & Admin Platform
      App Development Project for Wellness & Fitness Company Slay by Mari Fitness Mobile App & Admin Platform
    • Smart City Mobile App & Admin Platform
      App Development Project for Government Company Smart City Mobile App & Admin Platform
    • AI-Powered List Management Platform
      App Development Project for AI Company AI-Powered List Management Platform
    View Full Portfolio
    Comprehensive analysis done by DesignRush Agency Experts.

    Chop Dawg Reviews & Testimonials

    • Angela Odden
      Angela Odden Owner of Aok at Aok File Away
      4.8★
      Mobile App Development Review from Angela Odden

      Partnering with ChopDawg was hands down one of the smartest moves I've made. From day one, Joshua and Leo Lopez treated my idea with the kind of care and creativity you dream of finding in a development team. What started as a simple concept quickly became something visually stunning beyond anything I imagined.They never made me feel like just another client. Every question we had big or small was met with patience and insight. Their feedback was always honest, their communication consistent, and their commitment unwavering. Weekly Zooms were productive and on point, and their follow through was exceptional. It's clear they don't just build products, they build relationships. And were so grateful for that.

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    • Jeff Gillis CEO at Winelikes
      5.0★
      Mobile App Development Review from Jeff Gillis

      Chop Dawg did an amazing job on not only my app design, but my overall business plan when I hired them. Being a novice in the app world and coding world, they helped me understand what my business plan and app needed to be successful. When it is your baby, you get overprotective and think you are right, but they say when starting a business always surround yourself with experts in the field you are entering, because you are no expert. Chop Dawg and CEO Joshua are experts. They know how design a beautiful app and make sure it is competitive in the marketplace and show you all the intricacies of development to launch. They are great at what they do...just look at their apps! They walk you through the whole process, hold your hand and make sure you are happy with the final product. Any problems that do arise, they are always available and work side by side with you. Not only is your app your baby / business, but it is Chop Dawgs as well!

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    • Think Big
      Think Big Review from Google
      5.0★

      Think Big's Review Sourced from Google

      Your company is being targeted with fake 1-star reviews by an overseas group.The same thing happened to me. Reach out to support. They were able to remove all of mine.You don’t deserve this. What they’re doing is wrong.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Alpha Paw
    • Big Brothers Big Sisters
    • Choice Home Warranty
    • City of Peachtree Corners, Georgia
    • City of Philadelphia, Pennsylvania
    • City of Springboro, Ohio
    • CRBO
    • FlynnO'Hara
    • Hilton
    • Innovative
    Data sourced from the agency's DesignRush profile
    View Profile
    4.4 4.4 (2)
    4.8 4.8 (70)

  • Orases

    Custom Software to Reach Your Vision

    We create custom software solutions that transform your process, empower your people, and help you reach your vision. Our team of experts partner with you in a radically transparent process to understand your unique needs, then build a powerful software solution that is scalable, efficient, and cost  [... see all Orases reviews ]
    Location
    Washington DC, Washington DC
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Portfolios Count
    3 Projects Listed

    Orases Services

    • AI Development
    • Software Development
    • Mobile App Development
    • IT Services
    • Cybersecurity
    • Big Data Analytics
    • UI/UX Design
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • Mobile App Development
      App Development Project Mobile App Development
    • Services .NET Software Development
      .Net Development Project Services .NET Software Development
    • Application Support
      App Development Project Application Support
    View Full Portfolio
    Comprehensive analysis done by DesignRush Agency Experts.

    Orases Reviews & Testimonials

    • Jonathan Gessert
      Jonathan Gessert CEO at 321 Web Marketing
      5.0★
      Software Development Review from Jonathan Gessert

      We partnered with Orases to develop and maintain a multi-tenant workflow management system and customer portal, tailored to streamline our customers and internal team's creation processes. Our previous systems used dated technologies, but Orases stepped in with a PHP and React solution that transformed how we plan, write, edit, review, and publish content at substantial scale. The system now fully supports our end-to-end workflow, allowing for seamless collaboration across teams while significantly improving overall efficiency.Orases exceeded our expectations by delivering a demo in just six months, with the full application live within eight months. Their attention to detail, consistent communication, and ability to stay on schedule were remarkable throughout the project. Their project management approach was highly effective, ensuring that every stage of development was completed with precision and aligned with our needs.The results have been outstanding. The new system has enabled us to increase productivity, handle more complex projects, and reduce the time spent in content quality assurance and client feedback loops. This has directly contributed to our companys growth and enhanced our ability to scale operations efficiently.What stood out most was Orases's methodical and thoughtful approach. They took the time to deeply understand our goals and delivered a solution that met both our immediate needs and long-term business objectives. Their commitment to excellence and alignment with our vision truly made a difference.Working with Orases has been an incredible experience, and their ability to provide innovative solutions, paired with their outstanding teamwork, has been a major asset. We look forward to continued collaborations with their talented team.

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    • Tiffany Thomas
      Tiffany Thomas Review from Google
      5.0★

      Tiffany Thomas's Review Sourced from Google

      Working with Orases has been a game-changer. From day one, they understood our goals and challenges, then delivered a custom solution that streamlined our operations, improved the customer experience, and helped grow our bottom line.

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    • Nema Semnani
      Nema Semnani Review from Google
      5.0★

      Nema Semnani's Review Sourced from Google

      I'm way overdue in leaving this review. The team at Orases are the best in the biz when it comes to all aspects of app/software development, especially AI software dev. They've been instrumental in helping guide us through the ever-changing landscape of AI, since it definitely feels like if we blink, what we thought was cutting-edge in AI, becomes "old news." Orases helps us stay ahead of the curve...plus on a personal level, they're a genuine joy to work with. Highly recommend!

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    Reviews verified by DesignRush and sourced from the agency's profile
    • NFL Foundation
    • MLB Pitch, Hit & Run
    • NFL Flag Football
    • NFL Punt, Pass & Kick
    • K2M
    • Mental Health Association
    • José Andrés
    • Academy90
    • American Society of Interior Designers
    • American Kidney Fund
    Data sourced from the agency's DesignRush profile
    View Profile
    4.3 4.3 (1)
    4.9 4.9 (35)

  • Grant Thornton

    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
    Washington DC, Washington DC
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed

    Grant Thornton Services

    • Accounting
    • Business Consulting
    • Market Research
    • HR Outsourcing
    • Software Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Grant Thornton Reviews & Testimonials

    • Theodore Mall
      Theodore Mall Review from Google
      4.0★

      Theodore Mall's Review Sourced from Google

      One of the world’s leading organizations of independent audit, tax and advisory firms. Grant Thornton has revenues in excess of $1.9 billion and operates more than 50 offices.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Financial industry
    • Real estate industry
    • Media and Entertainment industry
    Data sourced from the agency's DesignRush profile
    View Profile
    4.5 4.5 (13)

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