Best Performance Testing Services

4 Companies - Rankings updated: April 01, 2026

All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.

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United States × Maryland × Baltimore ×

  • ELEK+RIK

    High Voltage Code Since 2010

    ELEK+RIK: Web App Development, Mobile App Development for iOS & Android, AI Integration & Development Experts for Long-Term US Projects since 2010  [... see all ELEK+RIK reviews ]
    Location
    Baltimore, Maryland
    Number of Employees
    Under 49
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    18 Projects Listed

    ELEK+RIK Services

    • Mobile App Development
    • Software Development
    • Web Development
    • Blockchain
    • VR/AR
    • AI Development
    • eCommerce Development
    • Software Testing
    • IT Services
    • WordPress Website Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • Sky Therapist Website Development
      Artificial Intelligence Project for Health Care Company Sky Therapist Website Development
    • Doctor on Demand
      App Development Project Doctor on Demand
    • NFL Premium streaming platform
      App Development Project NFL Premium streaming platform
    • Automotive Mobile App Development
      App Development Project for Automotive Company Automotive Mobile App Development
    • BMW Driver's Guide
      App Development Project BMW Driver's Guide
    • Mercedes-Benz Guides Mobile App
      App Development Project Mercedes-Benz Guides Mobile App
    View Full Portfolio
    Comprehensive analysis done by DesignRush Agency Experts.

    ELEK+RIK Reviews & Testimonials

    • Philip Wilson
      Philip Wilson Managing Director at Premier Automation Ltd
      5.0★
      Web Development Review from Philip Wilson

      ELEK+RIK team provided a streamlined process that was both simple and enjoyable. They kept to the budget and communicated well throughout the project. ELEK+RIK comes highly recommended and we would work with ELEK+RIK again if given the opportunity.

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    • George McKerrow
      George McKerrow CEO at Ted's Montana Grill
      5.0★
      Mobile App Development Review from George McKerrow

      ELEK+RIK has worked on improving our React Native mobile app. We had the skeleton of an app, but they were able to do an end-to-end re-design of each of the main pages. Since then, they`ve successfully implemented around ~20 different features on our mobile app. We share a spec and design, they provide an estimate and occasionally some design options, then when completed create a PR on GitHub. Their code is well-organized, easy to follow, and rarely do we have to go back-and-forth about bugs. They are also excellent communicators - carefully following threads on Slack, effectively communicating design and engineering tradeoffs, and even producing a 10m Loom video walking through a diagram. Their communication is top-notch. They are super easy to work with even though we are on very different time zones. And, I am impressed at the speed and execution of their development.

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    • John Riley
      John Riley Executive Vice President at MediaCentric
      5.0★
      Web Development Review from John Riley

      ELEK+RIK was tasked with creating a website for our company from scratch. They were professional, communicative, and dedicated to delivering an exceptional website that perfectly captured the essence of our company while exceeding our expectations. They are a talented, reliable, and customer-focused web design and development company that I would highly recommend to anyone.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Coca - Cola
    • Mercedes
    • BMW
    • VeChain
    • Sony
    • Nike
    • Toyota
    • Hyundai
    • McDonald's
    • Chang
    Data sourced from the agency's DesignRush profile
    View Profile
    4.9 4.9 (19)
    5.0 5.0 (2)

  • Azumo

    Build Intelligent Apps for Web, Mobile, Data, AI and Cloud

    Azumo helps businesses build intelligent apps by providing top-tier developers skilled in AI, data engineering and enterprise web & mobile applications. Our expertise has earned the trust of industry leaders like Facebook, Twitter, Discovery, Zynga, and NCSoft.  [... see all Azumo reviews ]
    Location
    Baltimore, Maryland
    Number of Employees
    100 - 249
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    9 Projects Listed

    Azumo Services

    • AI Development
    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Big Data Analytics
    • DevOps Consulting
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • Web Application Development and Software Staffing
      Software Development Project for Health Care Company Web Application Development and Software Staffing
    • Advisory Firms Software: Full Transition and Modernization
      Software Development Project for Corporate Services Company Advisory Firms Software: Full Transition and Modernization
    • Generative AI Enterprise Search
      Artificial Intelligence Project for Entertainment Company Generative AI Enterprise Search
    • Divining Cultural Trends with AI
      Artificial Intelligence Project for AI Company Divining Cultural Trends with AI
    • Generating Stock Market Alpha with AI
      Artificial Intelligence Project for Finance Company Generating Stock Market Alpha with AI
    • AI-Powered Skill for Alexa and Google Home
      Artificial Intelligence Project for Entertainment Company AI-Powered Skill for Alexa and Google Home
    View Full Portfolio
    Comprehensive analysis done by DesignRush Agency Experts.

    Azumo Reviews & Testimonials

    • Michael S.
      Michael S. Director at Software Development Company
      5.0★
      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.

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    • Anonymous
      Anonymous CTO at Healthcare Company
      5.0★
      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.

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    • Anonymous
      Anonymous VP Product & Engineering at Sales & Mktg Software Company
      5.0★
      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.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Discovery Channel
    • Meta
    • Zynga
    • Jostens
    • Assembled Brands
    • NGL
    • NCSoft
    • Twitter
    • Horoscope.com
    • Bento
    Data sourced from the agency's DesignRush profile
    View Profile
    4.8 4.8 (12)
    4.6 4.6 (24)

  • 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
    Baltimore, Maryland
    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)

  • Sketch Development Services

    Better Teams // Better Software

    Sketch provides software development services for Fortune 500 clients and startups alike. We specialize in product delivery consulting, software development services, and cloud consulting services.  [... view Sketch Development Services profile ]
    Location
    Baltimore, Maryland
    Number of Employees
    Under 49
    Minimal Budget
    $50,000 & Up

    Sketch Development Services Services

    • Software Development
    • Cloud Consulting
    • UI/UX Design
    • eCommerce Development
    • Mobile App 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

    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.

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    • 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.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • 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
    View Profile
    4.8 4.8 (8)

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