Top App Development Companies for SaaS

Between them, the 62 app development companies on this page cover eCommerce (26), medical (24), business services (23) and financial services (21). They also list work in Europe, New York and York. 62 of them have written a profile you can read before you get in touch.

1. 1

   

   creativio

   Android · Goals · Accounting

   The work of creativio, a digital product development firm, spans native apps, web platforms and software for connected devices.

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   Why #1: In business 20+ years · Client numbers stated on its own website, as stated on its own website, read 28 Sept 2026

   Not yet on record: client reviews, vetting.

2. =3

   

   GEM Custom Apps

   Mobile App · Backend · Creative

   GEM Custom Apps is a software development business that has built web and mobile applications since 2004.

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   Why #3 (shared): Founded 2004, as stated on its own website, read 29 Sept 2026

   Not yet on record: client reviews, vetting.

3. =3

   

   Dworkz

   Financial Services · Medical · Education

   Dworkz is a design and development firm in San Francisco. It works with B2B SaaS product management teams that want software people can pick up and use easily.

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   Why #3 (shared): Founded 2004, as stated on its own website, read 29 Sept 2026

   Not yet on record: client reviews, vetting.

4. 5

   

   Simpleweb

   Mobile App Development · Web Development · Web Design · Also in United Kingdom

   Simpleweb is a digital studio based in Bristol. It makes software-as-a-service and mobile applications, and says each product combines strategy, engineering and design.

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   Why #5: Founded 2007, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

5. 6

   

   Inncrewin Technologies

   Advertising & Marketing · Hospitality & Leisure · Business Services · Also in Dubai

   Inncrewin Technologies says it has built seven successful SaaS products and many other applications in fifteen years, and offers to help clients create their own products.

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   Why #6: In business 15+ years, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

6. 7

   

   Bitscorp

   Advertising & Marketing · Information Technology · eCommerce

   Engineering studio offering AI agents, data pipelines, full-stack rebuilds, mobile launches and DevOps for product companies

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   Why #7: Founded 2012, as stated on its own website, read 28 Sept 2026

   Not yet on record: client reviews, vetting.

7. 8

   

   Devico

   Advertising & Marketing · Software Development · Mobile App · Also in Silicon Valley

   Devico is a software development company that has spent about ten years building custom software for companies in many countries.

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   Why #8: In business 10+ years, as stated on its own website, read 29 Sept 2026

   Not yet on record: client reviews, vetting.

8. 9

   

   GegoSoft Technologies

   Consumer Products & Services · Advertising & Marketing · Business Services

   Founded in 2017 in Madurai, Tamil Nadu, GegoSoft Technologies starts most engagements from code that already runs in production.

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   Why #9: Founded 2017 · Team of 18+, as stated on its own website, read 29 Sept 2026

   Not yet on record: client reviews, vetting.

9. =10

   

   iqcode

   Advertising & Marketing · Real Estate · eCommerce

   iqcode is a software house in Warsaw, Poland, founded in 2018.

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   Why #10 (shared): Founded 2018, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

10. =10

    

    Fively

    Custom Software Development · Business Services · Financial Services · Also in Belarus

    Fively has been building bespoke B2B software since 2018. It focuses on custom development for startups, taking products from early idea to prototype, MVP and full release, and…

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    Why #10 (shared): Founded 2018, as stated on its own website, read 28 Sept 2026

    Not yet on record: client reviews, vetting.

11. 12

    

    AppLogiQ

    Advertising & Marketing · Information Technology · Mobile App

    An Indian engineering firm that has moved towards agentic AI and enterprise SaaS Founded in India in 2019, AppLogiQ is an engineering firm for digital products.

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    Why #12: Founded 2019, as stated on its own website, read 28 Sept 2026

    Not yet on record: client reviews, vetting.

12. =13

    

    kromeon

    Mobile App Development · Business Services · Financial Services · 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 #13 (shared): AWS partner, as stated on its own website, read 28 Sept 2026

    Not yet on record: client reviews, vetting.

13. =13

    

    3PRIME LLC

    Responsive · Internet · SEO

    3PRIME LLC, which trades as 3PRIME Web Solutions, is a web design, development and marketing agency in Hamden, Connecticut.

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    Why #13 (shared): Google partner, as stated on its own website, read 28 Sept 2026

    Not yet on record: client reviews, vetting.

14. 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
15. –

    1T

    12 Tech

    Medical · Android · Cloud · Also in New York and York

    12 Tech, trading as 12 TECH LLC, builds custom software and runs cloud services for small and medium-sized enterprises.

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16. –

    

    2V Modules

    Consumer Products & Services · Advertising & Marketing · Financial Services

    2V Modules is a software development team that designs and builds digital products from scratch and says it uses AI across its whole workflow.

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17. –

    

    App3null

    Supply Chain, Logistics, and Transport · Consumer Products & Services · Arts, Entertainment & Music

    App3null is a software developer within the Prestele Group that builds custom Android and iOS apps together with their backends.

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18. –

    

    AppEvolve

    CRM

    AppEvolve is a software consultancy in Boise, Idaho, in the United States.

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19. –

    

    Applicable Limited

    Consumer Products & Services · Business Services · Information Technology

    Applicable Limited is a New Zealand software development company that consults on, builds and then runs custom software for Kiwi businesses.

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20. –

    

    Artisan IT Solution

    Cloud · AWS

    Artisan IT Solution is a software development company in Kuala Lumpur, Malaysia.

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21. –

    

    Bean Machine

    Android · React · Learning

    The studio writes its name as BeanMachine and describes itself as a full-cycle design and development shop.

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22. –

    

    Big Digitals

    Consumer Products & Services · Arts, Entertainment & Music · Business Services

    Big Digitals, registered as Big Digitals Ukraine LLC, is a web and mobile development company that designs, builds and maintains websites and apps for clients around the world.

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23. –

    

    BigStep Technologies Pvt. Ltd.

    Arts, Entertainment & Music · Advertising & Marketing · Business Services

    BigStep Technologies Pvt. Ltd. is a software company that builds custom products and digital platforms for startups, enterprises and fast-growing technology businesses around the…

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24. –

    

    Binary Works IO, Inc.

    Agile · Cloud · Engineering

    Binary Works IO, Inc. develops custom software and digital products using Agile and DevOps practices to shorten time to market.

    Write a review
25. –

    

    BIT Studios

    Consumer Products & Services · Energy & Natural Resources · Advertising & Marketing · Also in Chicago

    Custom software developer offering web, mobile, QA, outsourcing and team augmentation services to startups and businesses

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