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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.

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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. SS

    Synchrony Systems

    Web Development · Web Design · iOS App

    Synchrony Systems has been helping companies modernize their legacy, mission-critical applications for over 20 years.

    Write a review
  2. TT

    Troposphere Technologies LLC

    Web Development · Web Design · Cloud Security

    We are your on-demand cloud computing experts with a mission to help grow your business. Our cloud infrastructure and the tech-spirited team are here to help you move to the cloud.

    Write a review
  3. SL

    Sauce Labs

    Web Development · Web Design · Software Testing

    Sauce Labs ensures the world’s leading apps and websites work flawlessly on every browser, OS and device.

    Write a review
  4. I

    IoTium

    Web Development · Web Design · IT Networking

    IoTium provides a secure managed software-defined network infrastructure for industrial IoT to securely connect legacy and greenfield mission-critical on-site machinery and…

    Write a review
  5. F

    ForgeRock

    Web Development · Web Design · iOS App

    ForgeRock®, the leader in digital identity, delivers modern and comprehensive Identity and Access Management solutions for consumers, employees and things to simply and safely…

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  6. T

    TeleSign

    Web Development · Web Design · PHP

    TeleSign connects and protects online experiences with sophisticated customer identity and engagement solutions.

    Write a review
  7. GL

    Grafana Labs

    Social Media Marketing · Web Development · Web Design

    Grafana Labs is the company behind Grafana, the leading open-source software for visualizing time series data.

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  8. M

    Macoscope

    Mobile App Development · Web Development · Web Design

    We deliver award-winning apps! We're an experienced team of 30+ senior developers and designers that will build your app with you.

    Write a review
  9. T

    ThoughtWorks

    Web Development · Web Design · Data Analytics

    Founded over 25 years ago, we’ve grown from a small team in Chicago to a leading global software consultancy of more than 6000 employees.

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  10. S

    SpringAhead

    Web Development · Web Design · iOS App

    SpringAhead is an online time tracking, billing and expense reporting solution that is fast, easy and fully integrated with your accounting system.

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  11. M

    Marchex

    Artificial Intelligence - AI · Social Media Marketing · Web Development

    As the leading provider of call analytics solutions, Marchex knows that your best customers are calling.

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  12. I

    Invoca

    Social Media Marketing · Web Development · Web Design

    Invoca is an AI-powered call tracking and conversational analytics company that brings the depth of marketing analytics traditionally limited to digital consumer interactions to…

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  13. VT

    Velluto Tech Incubator

    Web Development · Web Design · iOS App

    YOU, MULTIPLIED. Marketing Software to Spread Your Message. When you surround yourself with talented individuals, you rise up to their level. None of us are perfect.

    Write a review
  14. M

    Modelo

    Web Development · Web Design · iOS App

    At Modelo, we are building a platform for architects and designers who already work with complex 3D design software like Rhino or Revit.

    Write a review
  15. Z

    Zipcar

    Web Development · Web Design · iOS App

    Hi there. We’re Zipcar, the world’s leading car-sharing network, driven to make cities better places to live.

    Write a review
  16. FA

    Fishtown Analytics

    Web Development · Web Design · iOS App

    Fishtown Analytics is an analytics consultancy serving high-growth, venture-funded startups. We give companies access to top-tier data talent on a fractional basis.

    Write a review
  17. C

    Commvault

    Web Development · Web Design · iOS App

    Commvault's data protection and information management solutions provide mid- and enterprise-level organizations worldwide with a significantly better way to get value from their…

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  18. E

    ExaGrid

    Web Development · Web Design · iOS App

    ExaGrid provides intelligent hyper-converged storage for backup.

    Write a review
  19. AI

    Anaconda, Inc.

    E-Commerce Development · Big Data · Data Analytics

    With more than 20 million users, Anaconda is the world’s most popular data science platform and the foundation of modern machine learning.

    Write a review
  20. DN

    Diebold Nixdorf

    Artificial Intelligence - AI · Web Development · Web Design

    Consumer behavior is changing rapidly; people are empowered, connected and expect an unprecedented level of service and convenience.

    Write a review
  21. I

    Instana

    Mobile App Development · iOS App · UI/UX Design

    Instana is changing the way that IT organizations think about monitoring, especially their applications and application infrastructure.

    Write a review
  22. CT

    Computer Troubleshooters

    Web Development · Web Design · iOS App

    Computer Troubleshooters is the world’s largest computer and technology services franchise network.

    Write a review
  23. PS

    Picus Security

    E-Commerce Development · IT Networking · Network Security

    As the pioneer of Breach & Attack Simulation technologies, Picus developed a novel and holistic approach to IT security: Continuous Security Validation.

    Write a review
  24. EO

    Enea Openwave

    Web Development · Web Design · IT Solution

    Openwave Mobility, an Enea company, empowers mobile operators to manage and monetize encrypted traffic.

    Write a review

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