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
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   DataGenius Technologies LLC

   Consumer Products & Services · Business Services · Financial Services

   Working from Connecticut, DataGenius Technologies LLC presents data engineering as its core skill: building the systems that gather company information, move it between…

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   On record: Based in Connecticut

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   DealerApp Vantage

   DealerApp Vantage develops mobile apps for car dealerships and dealer groups.

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   On record: Address in United States

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   Decklaration

   Goals · Security · Also in New York and York

   Decklaration is a digital product agency in New York that pairs software delivery with strategy work modelled on big-four consultancy practice.

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   On record: Based in New York, USA

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   Demic Apps LLC

   Demic Apps LLC is the app development business of Stephen Spann, an iPhone, iPad and Android developer based around Atlanta.

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   On record: Based in Atlanta area

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   DENMARK

   Consumer Products & Services · Financial Services · Non Profit · Also in Denmark

   DENMARK is a marketing agency based in Atlanta that helps brands reach consumers who are busy and easily distracted.

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   On record: Based in Atlanta

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   Denovo Studios

   Supply Chain, Logistics, and Transport · Financial Services · Legal Cannabis

   Denovo Studios builds software for manufacturers, and its work usually starts with the systems a plant or company already runs.

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   On record: Based in Park Ridge, Illinois, USA

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   Depeche Code

   Depeche Code designs new websites and rebuilds existing ones, with the aim of producing sites that turn visitors into inquiries.

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   On record: Address in United States

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   Designli.co

   Custom Software Development · Web Development · iOS App · Also in United States of America

   Designli.co is a software development company in Greenville, South Carolina.

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   On record: Based in Greenville, South Carolina

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    Designs Raptor

    Businesses across the United States are the market for Designs Raptor, a web developer whose designers work from Tampa.

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    On record: Based in USA, with designers in Tampa

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    Devathon

    Consumer Products & Services · Information Technology · Web Development · Also in Silicon Valley and Hyderabad

    Devathon designs and develops web and mobile products, with a focus on funded startups and growing businesses.

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    On record: Based in Hyderabad, San Francisco and London

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    Devs Core

    Consumer Products & Services · Information Technology · Business Services

    Devs Core builds AI agents, integrations and automation that plug into a company's existing software, such as ERP, CRM, inventory and helpdesk systems.

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    On record: Based in Geneva, Florida, United States

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    Dewyngaert Design

    Responsive · simple · Also in Georgia

    Dewyngaert Design is a multidisciplinary design practice in Atlanta, Georgia.

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    On record: Based in Atlanta, Georgia

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    DianApps

    Supply Chain, Logistics, and Transport · Consumer Products & Services · Energy & Natural Resources

    DianApps designs and builds mobile apps, websites and wider software for businesses, and now puts AI tools at the centre of its work.

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    On record: Address in United States

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    Digital EYE Media

    Creative · SEO · Analytics · Also in Nelson and Southern California

    Working out of Southern California, Digital EYE Media handles a broad mix of digital work for brands and organizations.

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    On record: Based in Southern California, United States

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    Digital Function

    Web Development · .NET · Partners

    Digital Function is a Houston web and mobile design and development firm.

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    On record: Based in Houston

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    Digital Radium

    Business Services · Financial Services · Digital Marketing · Also in Missouri

    Manufacturers, distributors and suppliers that sell to other businesses are the customers Digital Radium now puts at the center of its work. The St.

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    On record: Based in St. Louis, Missouri

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    Digital Trooper Inc

    Hospitality & Leisure · Custom Software Development · Web Design

    Digital Trooper Inc is a web and app development company in Charlotte, North Carolina.

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    On record: Based in Charlotte, North Carolina

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    Digital Vertex

    eCommerce · SEO · WordPress · Also in Los Angeles

    Based in Los Angeles, Digital Vertex combines website design and development with online marketing.

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    On record: Based in Los Angeles, United States

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    DigitalAppStudio

    Information Technology · Business Services · Financial Services · Also in India

    Trading as Digital App Studio, DigitalAppStudio assists startups and app owners in clearing store review, then publishing across Google Play and the Apple App Store.

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    On record: Address in United States

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    DigitalCobb Pvt. Ltd.

    Consumer Products & Services · Arts, Entertainment & Music · Hospitality & Leisure · Also in Delhi

    From a base in Florida, USA, DigitalCobb Pvt. Ltd. is a design agency that brings together brand strategy, interface design and software development.

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    On record: Based in Florida, USA

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    Dimension Software

    Business Services · eCommerce · Creative · Also in Dortmund and Los Angeles

    Los Angeles studio Dimension Software describes itself as a software architecture, engineering and creative design firm.

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    On record: Based in Los Angeles, United States

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    DKS Systems

    Consumer Products & Services · Information Technology · Web Development · Also in United States of America

    DKS Systems is a Minneapolis technology firm that builds websites, online shops and business integrations.

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    On record: Based in Minneapolis, Minnesota, USA · Boutique

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    doodleblue Innovations

    Supply Chain, Logistics, and Transport · Mobile App Development · Advertising & Marketing · Also in Mumbai and Chennai

    doodleblue Innovations is a digital transformation firm that designs and builds software products for enterprises.

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    On record: Address in United States

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    Dot Dot Data

    Dot Dot Data is a software company in McAllen, Texas. It builds custom applications for businesses, from web apps to mobile apps, and has a particular focus on proximity-based…

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    On record: Based in McAllen, Texas, United States

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