Top App Development Companies in San Diego

Between them, the 7 app development companies on this page cover web design (3), eCommerce (3), education (3) and mobile app development (2). They also list work in United States of America. 7 of them have written a profile you can read before you get in touch.

1. =1

   

   IntelliSparx

   Web design, hosting and search work come from IntelliSparx LLC, a San Diego agency.

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   Why #1 (shared): Based in San Diego, California, USA · In business 20+ years, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

2. =1

   

   Dog and Rooster, Inc.

   Web Design · Education · Goals

   For more than two decades, a team in San Diego has designed and built websites and business software for companies that sell to other businesses, particularly in engineering,…

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   Why #1 (shared): Based in San Diego · In business 20+ years, as stated on its own website, read 29 Sept 2026

   Not yet on record: client reviews, vetting.

3. 3

   

   App Design Company

   Mobile App Development · Web Design · E-Commerce Development · Also in United States of America

   App Design Company, often shortened to ADC, is a mobile app design and development company based in San Diego, California.

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   Why #3: Based in San Diego, USA · Founded 2011, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

4. 4

   

   kromeon

   Mobile App Development · E-Commerce Development · iOS App · Also in United States of America

   Working from San Diego, California, kromeon builds software for startups and larger enterprises, covering mobile apps, software-as-a-service platforms and custom systems.

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   Why #4: Based in San Diego, California · AWS partner, as stated on its own website, read 28 Sept 2026

   Not yet on record: client reviews, vetting.

5. 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
6. –

   

   ArteDigital

   Financial Services

   ArteDigital provides on-demand software developers to extend client teams.

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   On record: Based in San Diego, California, with delivery in Tijuana, Mexico

7. –

   

   Brand New Box

   eCommerce · Education

   When a client cannot find an off-the-shelf tool for its problem, Brand New Box builds one.

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   On record: Based in San Diego, California

8. –

   

   Green Bird Media

   Web Design · Goals · Internet · Also in Virginia

   Green Bird Media is a web design firm that says it started in San Diego and now operates from Virginia. It builds websites for businesses and nonprofit organisations.

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   On record: Based in Virginia, USA, with San Diego origins

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