Top Software Development Companies in the USA

Between them, the 524 software development companies on this page cover web development (205), mobile app development (169), android (159) and web design (150). They also list work in Ahmedabad, California, New York and Florida. 524 of them have written a profile you can read before you get in touch.

1. Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
2. –

   

   inoday consultancy services Pvt. Ltd.

   Cloud · Manufacturing · Outsourcing · Also in India

   ERP and digital transformation consultancy specialising in NetSuite, Microsoft Dynamics and Infor for growing businesses

   Write a review

   On record: Office in United States

3. –

   

   INPHANTRY

   INPHANTRY is an experiential design agency in the San Francisco Bay Area. It builds live and digital brand experiences by combining creative concepts with custom technology.

   Write a review

   On record: Based in San Francisco Bay Area, USA

4. –

   

   INT9 Solutions

   Software Development · Big Data · Machine Learning · Also in Newark

   INT9 Solutions is a data and cloud consultancy that helps companies turn their data into something they can act on. It lists offices in California and in India.

   Write a review

   On record: Office in United States

5. –

   

   Integ Enterprise Consulting

   Analytics · Learning · Utilities

   Integ Enterprise Consulting develops software for the electric power industry, with an office in Newark, New Jersey.

   Write a review

   On record: Based in Newark, New Jersey

6. –

   

   Integral IT Services

   Information Technology · IT Services · Education · Also in Salt Lake City and Utah

   Integral IT Services acts as an outsourced IT department for companies that have none of their own.

   Write a review

   On record: Based in Salt Lake City, Utah

7. –

   

   Inter-Tech

   Software Development · Business Services · Financial Services

   Inter-Tech is a web design and development company in Las Vegas, Nevada. It serves the city and the surrounding area.

   Write a review

   On record: Based in Las Vegas, Nevada, USA

8. –

   

   InteractiveWest

   Custom Software Development · Search Engine Optimization · Web Development · Also in Denver and Colorado

   InteractiveWest now trades as TechnologyWest, LLC, after a change of name and business focus that took effect on 1 January 2022.

   Write a review

   On record: Based in Denver and Grand Junction, Colorado, USA

9. –

   

   InterNative Labs, LLC

   Outsourcing · Creative · Branding

   InterNative Labs, LLC is a digital agency in Lawrenceville, Georgia.

   Write a review

   On record: Based in Lawrenceville, Georgia, United States

10. –

    

    IntuitSolutions

    eCommerce · SEO · Backend

    IntuitSolutions is an e-commerce agency that designs, builds and supports online stores. It centres its work on the BigCommerce platform and also builds on Shopify.

    Write a review

    On record: Address in United States

11. –

    

    Inv3rsion LLC

    Business Services · Medical

    Inv3rsion LLC is a custom software company in New Hampshire, United States, working in virtual reality, augmented reality and medical devices.

    Write a review

    On record: Based in New Hampshire, United States

12. –

    

    Inverse-Square

    Mobile App Development · Web Development · iOS App · Also in United States of America

    Indianapolis firm building custom software, web applications, integrations and mobile apps for businesses with complex workflows

    Write a review

    On record: Based in Indianapolis, USA

13. –

    ID

    IT Dev Group

    Mobile App Development · ERP Software Development · Web Development · Also in Ukraine

    IT Dev Group is a software development company based in New York City. It builds bespoke enterprise software and websites, and continues to support projects after launch.

    Write a review

    On record: Based in New York City, USA

14. –

    

    IT Elite Inc

    Information Technology · Inc · Also in New Jersey and York

    IT Elite Inc is an information technology services and staffing company with offices in New Jersey and New York City, plus satellite offices offshore.

    Write a review

    On record: Based in New Jersey and New York City

15. –

    

    Itexus

    Custom Software Development · Web Development · Web Design · Also in United States of America

    Itexus is a technology team covering custom applications as well as big data and machine learning. It describes flexibility toward the client as its working principle.

    Write a review

    On record: Address in United States

16. –

    

    ITsGuru - Managed IT Services

    ITsGuru - Managed IT Services is an outsourced IT support provider in Houston, Texas.

    Write a review

    On record: Based in Houston, Texas

17. –

    

    IWS Design

    JavaScript · Creative · Advertising

    IWS Design works out of Anchorage, Alaska, where its designers and developers build brand identities and websites for businesses and organisations.

    Write a review

    On record: Based in Anchorage, Alaska, USA

18. –

    II

    ixStrata, Inc.

    Arts, Entertainment & Music · Information Technology · Financial Services

    ixStrata, Inc. is a technology engineering firm with staff in eight US states and three countries in Eastern Europe.

    Write a review

    On record: Office in United States

19. –

    

    Jadin Tech LLC

    Government · Goals · Security · Also in San Antonio

    Alaska Native-owned contractor providing cybersecurity, logistics and security assistance to US defence and federal agencies

    Write a review

    On record: Address in United States

20. –

    

    Javelin Design

    WordPress · simple · Property

    Javelin Design is a small design and development studio in Philadelphia, with roots going back to 1996.

    Write a review

    On record: Based in Philadelphia, Pennsylvania

21. –

    

    JAZ Design Company, Inc

    Video · Internet · Branding

    JAZ Design Company, Inc is a web and marketing agency in Harrisburg, Pennsylvania.

    Write a review

    On record: Based in Harrisburg, Pennsylvania

22. –

    

    Jumpyr

    Supply Chain, Logistics, and Transport · Consumer Products & Services · Arts, Entertainment & Music

    Jumpyr is a digital agency based in San Francisco, California.

    Write a review

    On record: Based in San Francisco, California

23. –

    KT

    KaaIoT Technologies, LLC

    IoT · Medical · Cloud · Also in Fleet

    KaaIoT Technologies, LLC develops the Kaa IoT platform, software for connecting and managing devices and making sense of the data they produce.

    Write a review

    On record: Address in United States

24. –

    

    Kapstone Technologies

    Kapstone Technologies, Inc. is a woman-owned small business that provides information technology services to federal, state and local government bodies.

    Write a review

    On record: Based in Chantilly, Virginia, USA

25. –

    

    Kirkwork LLC

    Android · Engineering · Property

    Kirkwork LLC is a software development company from Syracuse, New York.

    Write a review

    On record: Based in Syracuse, New York, USA

Articles

Related reading

Articles on this subject first, then the newest.

All articles

IT Services

6 Oct 2026 · TrustList Editorial

Of 39 software deals we covered, only 9 said what happens to customers

Our desk logged 39 software and IT-services deals and 12 vendor layoff announcements in two weeks: 19 deals had closed, 17 awaited…

United States

6 Oct 2026 · TrustList Editorial

Flai raises $27m Series A led by Base10 for dealership AI agents

The US start-up founded in 2025 also launched an AI-native service and sales CRM, and says revenue grew more than 20 times in its first…

United States

6 Oct 2026 · TrustList Editorial

OpenAI to watermark ChatGPT and Codex text in the EU

The textGrain mark is off by default for API customers elsewhere, and OpenAI's own tests show light editing sharply cuts detection, from…