Top App Development Companies in Seattle

Between them, the 16 app development companies on this page cover information technology (8), eCommerce (7), android (6) and web development (5). They also list work in United States of America. 16 of them have written a profile you can read before you get in touch.

1. 1

   

   Savvy Apps

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

   Savvy Apps is a creative agency that designs, builds and grows software for Android, iOS and the web.

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   Why #1: Office in Seattle · Founded 2009, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

2. 2

   

   DevelopersTroop

   Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing · Also in Auckland

   DevelopersTroop- Website App Seo & Software development company is a digital agency building websites, apps and custom software, and running online marketing, since 2014.

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   Why #2: Address in Seattle · Founded 2014 · Team of 20+, as stated on its own website, read 29 Sept 2026

   Not yet on record: client reviews, vetting.

3. =3

   

   Mobcoder LLC

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

   Mobcoder LLC develops mobile apps, web software and AI products for startups, app publishers and larger enterprises.

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   Why #3 (shared): Address in Seattle · In business 10+ years, as stated on its own website, read 6 Oct 2026

   Not yet on record: client reviews, vetting.

4. =3

   

   LiftUp

   Supply Chain, Logistics, and Transport · Consumer Products & Services · Information Technology · Also in Europe

   LiftUp is an international IT consultancy that supplies software teams to companies.

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   Why #3 (shared): Based in Seattle, USA · In business 10+ years, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

5. =3

   

   GenUI

   Supply Chain, Logistics, and Transport · Information Technology · eCommerce

   GenUI is a Seattle software development firm that works with organisations as their technical co-founder.

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   Why #3 (shared): Based in Seattle, USA · In business 10+ years, as stated on its own website, read 29 Sept 2026

   Not yet on record: client reviews, vetting.

6. 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
7. –

   

   Indeema Software Inc.

   Supply Chain, Logistics, and Transport · Arts, Entertainment & Music · Mobile App Development · Also in Lviv and Nice

   Indeema Software Inc. is an engineering company that develops connected devices and the software behind them, with a focus on combining AI and the Internet of Things.

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   On record: In business 15+ years · Project numbers stated on its own website, as stated on its own website, read 28 Sept 2026

8. –

   

   CVI Technologies

   Branding · Auditing · Analytics

   CVI Technologies is a software development company that says it employs staff only in the United States.

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   On record: In business 10+ years, as stated on its own website, read 28 Sept 2026

9. –

   

   Greyloops

   Information Technology · eCommerce · Android

   Greyloops is a software development company. It says it has more than fifty engineers and over ten years of experience delivering products for start-ups and for firms with older…

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   On record: In business 10+ years, as stated on its own website, read 29 Sept 2026

10. –

    

    Blockbeta Marketing

    Shopify · Analytics

    Marketing strategy consultancy offering SEO, content, websites and fractional marketing direction for niche service businesses

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11. –

    CS

    Chalosoft Systems Hub

    Supply Chain, Logistics, and Transport · Information Technology · Financial Services

    Chalosoft Systems Hub is a software developer in Kenya that sells enterprise management and point-of-sale systems.

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12. –

    

    Darpy Solutions

    Android · Branding · Also in India

    Darpy Solutions is a software development company that builds custom applications for businesses.

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13. –

    

    Data Warehouse Labs, Inc.

    Data Warehouse Labs, Inc., which trades as DWLABS, is an IT consulting and services company based in Seattle, in the United States.

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    On record: Based in Seattle, United States

14. –

    

    FDG Web, Inc

    Arts, Entertainment & Music · Search Engine Optimization · Information Technology

    FDG Web, Inc is a digital agency based just outside Seattle, Washington, in the Everett area.

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    On record: Based in Everett and Seattle area, Washington, USA

15. –

    

    gotomedia

    Consumer Products & Services · Information Technology · Education

    gotomedia is a user experience consultancy that researches, designs and prototypes digital products.

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    On record: Office in Seattle

16. –

    

    Helpful Human

    Consumer Products & Services · Search Engine Optimization · Advertising & Marketing · Also in United States of America

    Helpful Human is a design and development studio from Seattle that builds web and mobile applications and digital platforms.

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    On record: Based in Seattle, USA

17. –

    

    ITIRRA

    ITIRRA is a boutique software development and consulting firm in Seattle, Washington.

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    On record: Based in Seattle, Washington · Boutique

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