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Top App Development Companies for API

45 of 149 app development companies ranked on evidence in the Q4 2026 edition.

Between them, the 149 app development companies on this page cover eCommerce (71), android (64), medical (45) and information technology (43). They also list work in Ahmedabad, Nice, United States and Asia. 149 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

45 of 149 app development companies ranked on evidence held on 6 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.

How this is ranked About this edition

All app development companies 45 ranked SMEs 44 ranked

Filter by fitbudget, engagement, size and more

Bit Zesty
Consumer Products & Services · Information Technology · Business Services
Bit Zesty is a UK software firm that builds, rescues and maintains complex web applications, with Ruby on Rails as its core technology.
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Why #1: Founded 2009 · ISO 27001, Cyber Essentials, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Cyrus Technoedge Solutions Pvt. Ltd.
Information Technology · Business Services · Financial Services · Also in Jaipur and Africa
Cyrus Technoedge Solutions Pvt. Ltd. is a software company in Jaipur, India, founded in 2010.
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Why #2: Founded 2010 · ISO 9001, ISO 27001, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Finetech Consultancy
Cloud · Government · Video · Also in Bangladesh
Finetech Consultancy is a cloud consultancy based in Rajagiriya, Sri Lanka.
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Why #3: In business 15+ years · Google partner, Microsoft partner, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
BDSD Technology Pvt Ltd
Supply Chain, Logistics, and Transport · Information Technology · Booking
BDSD Technology Pvt Ltd is a software and app development company in Noida, India, working with startups and established businesses since 2016.
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Why #4: Founded 2016, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Dream Warrior Group
Mobile App · SEO · Creative · Also in Lincoln
Dream Warrior Group designs and builds custom websites, web applications and digital platforms from Los Angeles.
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Why #5: Founded 1994, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
GP Solutions
Mobile App Development · Hospitality & Leisure · Custom Software Development · Also in Warszawa and Berlin
GP Solutions builds custom software and has a long history in travel technology, having started in 2002.
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Why #6: Founded 2002, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
GEM Custom Apps
Mobile App · Backend · SEO
GEM Custom Apps is a software development business that has built web and mobile applications since 2004.
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Why #7: Founded 2004, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
DESSS, Inc.
Consumer Products & Services · Advertising & Marketing · Mobile App Development · Also in Mexico
DESSS, Inc. is an IT services and software company serving businesses in Houston, Austin, Dallas and further afield.
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Why #8: In business 21+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Cooperativa de Trabajo Equality Ltda
Swift
Cooperativa de Trabajo Equality Ltda is a worker-owned software cooperative in Argentina that analyses systems and develops software for the financial sector and industry.
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Why #9 (shared): In business 20+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Ideo Software
Information Technology · Financial Services · Software Development
Ideo Software is a Polish software house that builds bespoke web applications and e-commerce systems.
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Why #9 (shared): In business 20+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
genijalno.ba
Android · Agile · React
Operating from Sarajevo since 2007, genijalno.ba is an independent engineering practice that designs, builds and keeps production software running.
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Why #11: Founded 2007 · Team of 16+, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
KEYSYS
Information Technology · Business Services · Non Profit
KEYSYS is a software engineering company based in Birmingham, Alabama, active since 2007.
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Why #12 (shared): Founded 2007, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
CYCLE Interactive
Responsive · Backend · React
CYCLE Interactive builds custom software and has done so since 2007.
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Why #12 (shared): Founded 2007, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Big Kitty Labs
Software Development · Mobile App · Android · Also in Ohio
Big Kitty Labs is a software design and development agency in Columbus, Ohio.
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Why #14 (shared): Founded 2008, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Godelm
Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing
Godelm is a custom software development company that started in Delaware, USA, and says it has worked in technology since 2008.
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Why #14 (shared): Founded 2008, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
gloversure
Information Technology · Business Services · eCommerce
gloversure is a digital agency with offices in Welshpool and Chester.
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Why #14 (shared): In business 18+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
CONTUS MirrorFly
Cloud · Video · Security
CONTUS MirrorFly sells communication building blocks for software teams: APIs and SDKs that add chat, voice calling, video calling and AI agents to web and mobile apps.
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Why #14 (shared): In business 18+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Inventif Web LLP
Search Engine Optimization · Mobile App · Web Design · Also in Australia
Inventif Web LLP is a digital marketing agency in Mumbai, India.
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Why #18 (shared): Founded 2009, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Firethorne Design
Medical · Responsive · WordPress · Also in California and Asia
Firethorne Design is a Sacramento web marketing and development studio founded in 2009 by Don Huntley.
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Why #18 (shared): Founded 2009, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Darwoft
Supply Chain, Logistics, and Transport · Consumer Products & Services · Gps, Navigation & Gis · Also in Argentina
Darwoft is a full-cycle software development company that presents itself as US-based and serves American businesses.
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Why #20 (shared): Founded 2010 · Team of 250+, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Canvas Web Design
Web Development · Mobile App · App Development · Also in Indonesia
Canvas Web Design, trading as Canvasweb under the company PT Canvas Sistem Solusi, is a Jakarta web design and development studio that has been building digital systems since 2010.
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Why #20 (shared): Founded 2010, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Caddiesoft Development
Data Mining · Analytics · Full-stack
Caddiesoft Development, trading as Caddiesoft AS, has spent 16 years as a Norwegian development partner for small and medium businesses.
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Why #22 (shared): In business 16+ years, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Evolution Infosystem
Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing
Evolution Infosystem is a software development company that has operated since 2010.
Write a review
Why #22 (shared): Founded 2010, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Digiteum
Consumer Products & Services · Advertising & Marketing · Information Technology · Also in Oxford
Digiteum is a custom software development company that has run full-cycle projects since 2010 and also supplies teams that scale up or down on demand.
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Why #22 (shared): Founded 2010, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.

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Top App Development Companies for API

Bit Zesty

Cyrus Technoedge Solutions Pvt. Ltd.

Finetech Consultancy

BDSD Technology Pvt Ltd

Dream Warrior Group

GP Solutions

GEM Custom Apps

DESSS, Inc.

Cooperativa de Trabajo Equality Ltda

Ideo Software

genijalno.ba

KEYSYS

CYCLE Interactive

Big Kitty Labs

Godelm

gloversure

CONTUS MirrorFly

Inventif Web LLP

Firethorne Design

Darwoft

Canvas Web Design

Caddiesoft Development

Evolution Infosystem

Digiteum

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