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Top IT Services Companies in the USA

871 IT service providers ranked by rating, review volume and listing quality.

IT services is the broadest label in this directory and covers, at different firms, entirely different work: managed infrastructure and helpdesk, project-based software delivery, cloud migration, security, procurement, or some combination sold as one relationship. Two providers under this heading may have almost nothing in common.

Because the label is wide, the useful filter is the engagement model rather than the capability list. Is this a retained relationship with a service-level agreement and a monthly cost, or project work quoted per piece? Who is accountable when something breaks at two in the morning, and what does the contract actually promise? A provider that answers those precisely is describing a real service; one that answers in capabilities is describing a brochure.

Between them, the 600 best-ranked of these 871 IT service providers cover web development (463), web design (434), eCommerce (355) and iOS app (310). They also list work in United Kingdom. 594 of them have written a profile you can read before you get in touch.

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  1. Parallels logo

    Web Development · Web Design · iOS App

    Parallels Inc., a global leader in cross-platform solutions, makes it simple for customers to use and access the applications and files they need on any device or operating system.

  2. CloudBlue logo

    Web Development · Web Design · iOS App

    CloudBlue, an independent Ingram Micro business, is dedicated to helping service providers of all kinds build, scale and monetize cloud and digital services in the as-a-service…

  3. Virtuozzo logo

    Web Development · Web Design · iOS App

    Virtuozzo is a leading hyper-converged infrastructure software provider with integrated containers, virtual machines, and storage solutions.

  4. Digital Realty logo

    Web Development · Web Design · iOS App

    Digital Realty powers global IT strategies for companies of all sizes, enabling them to scale digital business with a fit for purpose data center platform that delivers a…

  5. Mitel logo

    Web Development · Web Design · iOS App

    Powering more than 2 billion connections every day, Mitel helps businesses connect, collaborate and take care of customers. Smarter and faster?

  6. Equiinet logo

    Web Development · Web Design · iOS App

    Equiinet is a telecommunications company that offers innovative phone and network solutions to businesses that look for excellent service at a lower cost.

  7. NetBase logo

    Artificial Intelligence - AI · Web Development · Web Design

    NetBase is the next-generation artificial intelligence-powered social analytics platform that global companies use to run brands, build businesses, and connect with consumers every…

  8. Leadtail logo

    Social Media Marketing · Web Development · Web Design

    Leadtail came about from our desire to help B2B marketers tap into the power of social media to get closer to target buyers and radically improve their marketing strategies.

  9. RiskIQ logo

    Web Development · Web Design · iOS App

    RiskIQ is the leader in attack surface management, providing the most comprehensive discovery, intelligence, and mitigation of threats associated with an organization’s digital…

  10. Kenna Security logo

    Web Development · Web Design · iOS App

    Kenna is a software-as-a-service Risk and Vulnerability Intelligence platform that accurately measures risk and prioritizes remediation efforts before an attacker can exploit an…

  11. Modern Data Analytics logo

    Software Development · Data Analytics · eCommerce

    Modern Data Analytics is a consulting firm that helps organizations maximize the value of data through modernization.

  12. Avalara logo

    Custom Software Development · E-Commerce Development · Automation Engineer

    Avalara solves Tax. But it's not like you may think. Imagine every product you buy, every service you subscribe to, every transaction you make. It all needs to be taxed.

  13. OurCrowd logo

    Web Development · Web Design · iOS App

    OurCrowd is the leading crowd investing platform for accredited investors.

  14. PTC logo

    Web Development · Web Design · iOS App

    PTC (NASDAQ: PTC) unleashes industrial innovation with award-winning, market-proven solutions that enable companies to differentiate their products and services, improve…

  15. Aurea Software logo

    Social Media Marketing · Web Development · Web Design

    Aurea is the technology behind some of the world’s greatest customer experiences, for the largest and most successful brands.

  16. Perceptyx, Inc. logo

    E-Commerce Development · Software Testing · eCommerce

    Perceptyx is revolutionizing the employee survey and people analytics industry, delivering enterprise-level employee surveys and people analytics to more than 25% of the Fortune…

  17. Workgrid Software logo

    Web Development · Web Design · iOS App

    Our intelligent digital workplace platform integrates across the common systems and tools found in the workplace to deliver personalized and contextual information to each employee…

  18. ShopKeep logo

    Web Development · Web Design · iOS App

    Born out of frustration with the traditional cash register business, ShopKeep's iPad-based point of sale system was designed by a retailer with a noble aim: ..to rescue independent…

  19. FrontM logo

    Web Development · Web Design · UI/UX Design

    FrontM is a UK headquartered technology startup with the team spread between London, SFO and Bangalore.

  20. AppDirect logo

    Web Development · Web Design · iOS App

    AppDirect provides the only end-to-end cloud commerce platform for succeeding in the digital economy.

  21. Hortonworks logo

    Artificial Intelligence - AI · Software Development · E-Commerce Development

    At Cloudera, we believe that data can make what is impossible today, possible tomorrow. We empower people to transform complex data into clear and actionable insights.

  22. Blue J Legal logo

    Artificial Intelligence - AI · Software Development · Machine Learning

    We are a market leader in developing legal technology powered by machine learning, helping tax practitioners gain unparalleled visibility into challenging areas of law.

  23. Zymewire logo

    Software Development · E-Commerce Development · Machine Learning

    Zymewire is a digital sales research assistant that helps companies uncover new opportunities for sales growth without having to rely on untrustworthy analyst-populated…

  24. Teqfocus logo

    Artificial Intelligence - AI · E-Commerce Development · Business Intelligence

    “TeqFocus” specializes in building, managing and integrating technologies on Cloud & Mobile to digitalize customer experience journey using the right combination of people, process…

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