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Top App Development Companies in San Diego

4 of 7 app development companies ranked on evidence in the Q4 2026 edition.

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.

TrustList ranking

Q4 2026 edition

4 of 7 app development companies ranked on evidence held on 12 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

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All app development companies 4 ranked SMEs 4 ranked

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IntelliSparx
IntelliSparx LLC is a web agency based in San Diego, California. It designs and programs websites, hosts them, and handles online marketing and search optimisation.
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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.
Dog and Rooster, Inc.
Web Design · Education · Goals
Dog and Rooster, Inc. is a San Diego technology firm that designs and builds websites, web applications and mobile apps.
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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.
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.
kromeon
Mobile App Development · E-Commerce Development · iOS App · Also in United States of America
kromeon is a software development firm in San Diego, California.
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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.
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
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
Brand New Box
eCommerce · Education
Brand New Box is a digital product studio in San Diego, California.
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On record: Based in San Diego, California
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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Top App Development Companies in San Diego

IntelliSparx

Dog and Rooster, Inc.

App Design Company

kromeon

ArteDigital

Brand New Box

Green Bird Media

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