Top App Development Companies in the USA

Between them, the 600 best-ranked of these 781 app development companies cover eCommerce (187), medical (160), information technology (146) and business services (141). They also list work in California, London, York and Ahmedabad. 600 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. –

   EG

   eMedia Germany oHG

   Search Engine Optimization · Responsive · simple · Also in Germany

   eMedia Germany oHG is an IT company that builds and looks after websites, online shops and apps.

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   On record: Based in Germany, with a presence in the USA and Bangladesh

3. –

   

   Emerald Studio

   Arts, Entertainment & Music · Financial Services · eCommerce · Also in Cleveland and Florida

   Emerald Studio is a software development and digital agency that builds mobile apps, enterprise dashboards and e-commerce platforms.

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   On record: Address in United States

4. –

   

   Engage Web Design

   Business Services · Legal Cannabis

   Engage Web Design is a web design and online marketing business based in Detroit, Michigan. It also names offices in Novi and Plymouth.

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   On record: Based in Detroit, Michigan

5. –

   

   Enget Marketing Group

   Tampa agency designing, building and promoting websites, with search optimisation and paid advertising for small businesses

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   On record: Based in Tampa, Florida

6. –

   

   Engine Room

   Philadelphia-based Engine Room takes on website design and construction, then looks after security, uptime and performance.

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   On record: Based in Philadelphia, Pennsylvania

7. –

   

   ENO8

   Energy & Natural Resources · Mobile App Development · Advertising & Marketing · Also in United States of America

   Dallas-Fort Worth is where ENO8 works, helping companies take web and mobile applications from idea to launch.

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   On record: Based in Dallas-Fort Worth, US

8. –

   

   Enterlogix

   Cloud · simple · Automation · Also in Texas and Austin

   Houston consultancy specialising in Microsoft Dynamics and Salesforce CRM projects for sales, service and marketing teams

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   On record: Based in Houston, Texas

9. –

   

   Envision Dennis Romano

   Envision Dennis Romano is a small web and marketing business with headquarters in Ocean, NJ.

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   On record: Address in United States

10. –

    

    EPixelSoft®

    Supply Chain, Logistics, and Transport · Arts, Entertainment & Music · Advertising & Marketing · Also in Delhi NCR

    Working from India and the United States, EPixelSoft engineers software around artificial intelligence.

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    On record: Office in United States

11. –

    

    Epsilonium Systems Inc.

    eCommerce · Android · Creative · Also in Arizona and Phoenix

    In Phoenix, Arizona, Epsilonium Systems Inc. designs and develops websites and software.

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    On record: Based in Phoenix, Arizona, United States

12. –

    

    Equ@tions INC

    eCommerce · Creative · Cloud · Also in San Francisco and California

    Equ@tions INC is a technology research and development lab in San Francisco that creates its own startups.

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    On record: Based in San Francisco, USA

13. –

    

    Equilibrium

    Equilibrium, trading as equ, is a digital agency in Western Australia.

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    On record: Address in United States

14. –

    

    Escalate Technologies LLC

    Government · Analytics · Partnership

    Service-disabled veteran-owned contractor providing analytics, program management and defence support to US government agencies

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    On record: Address in United States

15. –

    

    Esco Logics, LLC

    Web Development

    Based in Chicago, Illinois, Esco Logics designs and develops websites, mobile apps, software platforms and brand systems, and it offers marketing and AI services alongside them.

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    On record: Based in Chicago, Illinois, USA

16. –

    

    Essen International

    With offices in New York and Stockholm, Essen International is a boutique branding and design agency that develops and manages brands for ambitious owners and teams.

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    On record: Office in United States · Boutique

17. –

    

    eTecc / Interactive

    Supply Chain, Logistics, and Transport · Consumer Products & Services · Advertising & Marketing

    eTecc / Interactive is a digital creative studio based in Naperville, Illinois. It produces brand identities, websites, software and mobile apps.

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    On record: Based in Naperville, Illinois

18. –

    

    ETNA Software

    Information Technology · Business Services · Financial Services

    Trading and wealth management software sold under other firms' names comes from ETNA Software.

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    On record: Address in United States

19. –

    EC

    Eucalipse.com

    Eucalipse.com builds AI operations systems for professional services businesses.

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    On record: Address in United States

20. –

    

    Euphoria XR

    Education · Gaming

    An American studio, Euphoria XR builds virtual reality, augmented reality and AI applications for businesses.

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    On record: Based in United States

21. –

    

    Eureka Software

    Consumer Products & Services · Arts, Entertainment & Music · Mobile App Development · Also in Austin

    Custom software for start-ups and enterprises, and expert witness work in intellectual property disputes, come from Eureka Software in Austin, Texas.

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    On record: Based in Austin, Texas, US

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    Extractable

    From San Francisco, Extractable works on digital strategy and user experience.

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    On record: Based in San Francisco, USA

23. –

    

    Exultancy, Inc

    Information Technology · Non Profit · Medical

    Boutique IT consultancy in New Jersey providing software development, testing and mobile apps for finance and other sectors

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    On record: Based in Princeton, New Jersey, United States · Boutique

24. –

    

    Eztechstack

    Cloud

    EzTechStack is a technology company based in California. It builds and supports websites, web applications, software, mobile apps and databases for businesses that need dependable…

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    On record: Based in California, United States

25. –

    

    F&S Digital

    Arts, Entertainment & Music · Hospitality & Leisure · Business Services

    F&S Digital is a technology consultancy based in New Jersey. It designs, develops and installs custom software for businesses, whatever their level of technical knowledge.

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    On record: Based in New Jersey, United States

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