For startups, building a mobile app is a major growth opportunity. According to Grand View Research, the U.S. market is expected to expand rapidly with a 14.1% annual growth rate by 2030.
However, one major challenge remains: not every mobile app development company truly understands startups. After working with 30+ startups, we have seen a clear pattern in what founders truly need from a mobile app development company.
Startups look for a team that can build quickly without high costs, deliver an MVP within a few weeks, and still maintain strong code quality that can scale when real users arrive.
For a startup, a partner who understands startup pressure, including tight timelines, pivots, investor demos, and limited budgets, while ensuring clear communication, regular updates, and honest expectations throughout the journey, is what leads to a successful outcome.
To help you choose when there are countless companies out there, this guide is created to help you make that decision with confidence. Inside, you will find a clear list of the top 10 mobile app development companies for USA startups.
What is Mobile App Development?
Mobile app development is the process of building software applications that run on smartphones and tablets. It involves designing the user interface, writing code for functionality, connecting to backend servers, and deploying apps to the Apple App Store (iOS) or Google Play Store (Android).
In 2026, most startups choose cross platform development using frameworks like React Native or Flutter, which allow one codebase to work on both iOS and Android, cutting development time and costs by 40 to 60 percent.
For startups, mobile app development means turning an idea into a working product that users can download, test, and provide feedback on, ideally within 4 to 8 weeks for an MVP.
How We Selected the Best Mobile App Development Companies for USA Startups
After working with startups for over 5 years, we know exactly what founders actually need, and it is rarely what large agencies with 100+ employees and strong social media presence typically offer.
Instead of focusing on company size, award counts, or how many industries they claim to serve, we looked at what genuinely matters for startups, and below are the factors we prioritised.
Team Size & Approach:
We focused on companies that treat startups as long-term partners, not just one-time projects. This includes agencies with around 20 to 50 employees where founders can directly connect with leadership, as well as mid-sized firms with about 100 to 300 employees that offer dedicated startup teams and clear communication processes so you never feel like just another ticket.
Verification & Reviews:
We checked their Clutch ratings and verified reviews (not just the quantity, but reading actual feedback from startup founders)
We also considered whether these companies are recognized on trusted industry platforms such as GoodFirms and Mobile App Daily, which helps validate their credibility through independent reviews and real client experiences.
Tech Stack Expertise:
Every company claims expertise on their website, but we looked deeper into their past work, including real projects built with React Native, Flutter, Node.js, and modern cloud infrastructure, as well as their hiring practices and team experience to understand how they actually solved technical challenges.
Startup-Specific Focus:
Most importantly, we filtered for companies with proven startup experience, including clear case studies, founder testimonials, and strong team support even after launch.
This is not about the biggest names. It is about finding the right fit for startups building their first product or upgrading an existing one with a long term partnership in mind.
At a Glance: Top 10 Mobile App Companies for USA Startups
Before exploring the detailed profiles, review this quick comparison table designed for fast evaluation. It includes only the key metrics that matter when choosing a mobile app development service provider for your startup in the USA.
Complete details are available in the section below for each company.
10 Best Mobile App Development Companies for USA Startups
Below is our carefully vetted list of the top 10 mobile app development companies trusted by USA startups to deliver complete solutions from iOS and Android native apps to cross platform development.
1. MTechZilla
Website: www.mtechzilla.com
Company Overview
MTechZilla is a startup-focused company located in India that specializes in mobile app development for USA and European startups. Led by Sharvin Shah, CEO with over 10 years of experience in software development, the team of more than 30 engineers delivers applications using React Native.
Recognized for a highly responsive support team and top 3% talent, startups choose MTechZilla for its fast onboarding, allowing engineers to be added within 48 hours and projects to begin within one week, along with cost-effective and transparent pricing.
With experience supporting more than 30 startups and helping clients raise funding after launch, MTechZilla provides complete support from initial planning to post-launch support. The company maintains a 98% client satisfaction rate and is featured on credible platforms such as MobileAppDaily and GoodFirms, holding a strong reputation in the app industry.
Tech Stack
React Native, Node.js, AWS, Stripe
Core Services
Mobile app development, custom software development, AI development, website development, cloud application development, legacy app modernisation, UI/UX design, and payment gateway integration.
Industry Experience
Travel & Hospitality, Renewable Energy, Electric Vehicles, Insurance, Real Estate, Education, and Government and Public Sector (SLED and Federal).
Engagement Models
Dedicated teams, project-based, staff augmentation
Founded: 2021
Team Size: 30+
Location: Pune, India
Minimum Project: $10,000+
Clutch Rating: 5.0
2. TechGropse
Website: www.techgropse.com
Company Overview
TechGropse has become a top Mobile App Development firm in Atlanta helping startups, midsize businesses, and large corporations gain competitive advantages with all-round digital initiatives.
With 100% client satisfaction rate and 92% client retention rate, TechGropse has widespread recognition for its holistic app development capabilities, modern-day AI integration, and end-to-end post-delivery support and maintenance services. Along with the competitive advantages, the company sustains the brand ethics with the highest standard of data protection and compliance measures.
Showcasing a global presence for more than a decade, TechGropse offers both onsite, remote, and offshore development at your preferred location and preferred time zone.
Tech Stack
Flutter, React Native, NestJS, Spring Boot, Google Cloud, Microsoft Azure
Core Services
AI app development, ERP/CRM, Cloud Solution, Legacy App Modernization, Website Development, Custom Software Development, Native & Hybrid App Development, Cross Platform Solution
Industry Experience
Manufacturing, Pharmaceutical, Healthcare, eCommerce, Retail, Gaming, Digital Marketing, Media & Entertainment, FinTech, and Government sectors
Engagement Models
Staff augmentation, onsite development, remote development, offshore development
Founded: 2015
Team Size: 250+
Location: Atlanta, Georgia, USA
Minimum Project: $10,000+
Clutch Rating: 4.8
3. Designli
Website: www.designli.co
Company Overview
Designli is a mobile app and custom software development company based in Greenville, South Carolina, focused on helping non-technical founders turn their ideas into real products.
Led by CEO and co-founder Keith Shields, the company has grown to a team of more than 250 professionals who build applications using modern technologies such as React Native, AWS, and other cross-platform frameworks.
Startups choose Designli for its dedicated product team approach, where each client receives a full-time, founder-aligned team that includes product owners, designers, engineers, and quality assurance specialists who work like co-founders without taking equity. The company follows a two-week agile sprint process with biweekly demos and continuous feedback to ensure steady progress and transparency.
Tech Stack
Node.js, AWS, React Native, Google Cloud Platform
Core Services
Mobile app development, custom software development, web app development, UX/UI design, cross-platform development
Industry Experience
Consumer Products & Services, Education, Financial Services, Manufacturing, Medical/Healthcare, Supply Chain & Logistics, Transportation, and Other Industries.
Engagement Models
Dedicated product teams, two-week solution labs (prototyping sprints), project-based, ongoing product development
Founded: 2013
Team Size: 250-999
Location: Greenville, South Carolina, USA
Minimum Project: $10,000+
Clutch Rating: 5.0
4. AppMakers
Website: www.appmakersla.com
Company Overview
AppMakers USA is a Los Angeles-based mobile app development company that builds high-quality apps for startups and established businesses across the United States.
Founded in 2014 by Daniel Haiem, the company is known for its award-winning approach that blends strong technical expertise with genuine client relationships. The team has delivered successful apps for major brands as well as many startup projects from solo entrepreneurs, and it maintains a 5.0 rating on Clutch.
AppMakers USA stands out for its US-based team, offering real-time communication, transparent fixed-rate pricing, and complete support from design to post-launch maintenance, while ensuring clean code practices and strong security standards.
Tech Stack
React Native, Flutter, Swift, Android
Core Services
Custom Software Development, Mobile App Development, Web App Development, Artificial Intelligence, Low-Code/No-Code, iOS Development, Android Development, Staff Augmentation
Industry Experience
Education, Healthcare, Retail, E-Commerce, Entertainment, Gaming, Dating, Fashion, Business Services, Financial Services, Information Technology, Manufacturing
Engagement Models
Fixed-rate projects, dedicated teams, staff augmentation
Founded: 2014
Team Size: 10-49
Location: Los Angeles, CA (Headquarters: 1250 S Los Angeles St) + New York, NY
Minimum Project: $10,000+
Clutch Rating: 5.0
5. Goji Labs
Website: www.gojilabs.com
Company Overview
Goji Labs is a digital product agency headquartered in Los Angeles that focuses on helping startups, Fortune 500 companies, and nonprofits successfully launch mobile and web applications. Founded in 2014 by David Barlev, the company has delivered products across a wide range of industries.
Goji Labs is known for its strategic and risk focused approach to product development. Instead of creating simple prototypes, the team builds production ready platforms designed to scale from the very beginning.
With consistently positive client feedback, many startups choose Goji Labs for its consultative partnership model where the technical team works as an extension of the founding team and provides both development expertise and strategic product guidance.
Tech Stack
React Native, iOS (Swift), Android (Kotlin)
Core Services
Agile software development, Android app development, custom mobile app development, custom web app development, dedicated development team, digital product audit, UI/UX design, product strategy consulting
Industry Experience
Business Services, Consumer products & services, Education, Medical, Non-profit
Engagement Models
Full product development, dedicated product teams, MVP builds, product rescue and modernization
Founded: 2014
Team Size: 50-249
Location: Los Angeles, California, USA
Minimum Project: $25,000+
Clutch Rating: 5.0
6. Cheesecake Labs
Website: www.cheesecakelabs.com
Company Overview
Cheesecake Labs is a nearshore software development and AI integration company with offices in San Francisco, California, and Florianópolis, Brazil. The company specializes in custom software development for U.S. startups and Fortune 500 organizations and brings over 10 years of proven industry experience.
Led by CEO Marcelo Gracietti, Cheesecake Labs has grown to a team of more than 100 employees. Startups and enterprises choose Cheesecake Labs for its flexible collaboration models, including staff augmentation, dedicated development teams, and end-to-end product development services.
The company follows agile development with structured project management, providing full-cycle support from product strategy to post-launch maintenance, and has earned multiple awards recognizing its strength in AI, blockchain, and mobile solutions.
Tech Stack
React Native, Flutter
Core Services
Mobile app development (iOS & Android), custom software development, web app development, AI software development, data modernization & engineering, blockchain development, UX/UI design, product strategy, DevOps & cloud services, backend development, IoT development, IT staff augmentation, and dedicated development teams.
Industry Experience
Financial services, healthcare, education, blockchain and cryptocurrency, consumer products and services, e-commerce, nonprofit organizations, real estate, automotive, and technology startups.
Engagement Models
Project-based outsourcing, IT staff augmentation, dedicated teams
Founded: 2013
Team Size: 50-249
Locations: San Francisco, CA (USA) & Florianópolis, Brazil
Minimum Project: $50,000+
Clutch Rating: 4.9
7. LeanCode
Company Website: https://leancode.co/
Company Overview
LeanCode is a full cycle mobile app and software development company based in Warsaw, Poland, and recognized as an official Flutter consultant by Google.
Founded in 2016 by Łukasz Kosman and Jakub Wojtczak, the company brings over nine years of experience and a team of more than 80 technology experts, including skilled Flutter engineers and Google Developer Experts.
LeanCode supports startups and established businesses across Europe, the United States, China, and Australia by delivering secure and scalable digital products and guiding the entire product lifecycle from strategy and design to development, launch, and long term growth, helping founders validate ideas, speed up time to market, and scale with confidence.
Tech Stack
Flutter, .NET, React
Core Services
Mobile App Development, Flutter App Development, Custom Software Development, Web App Development, UX/UI Design, Product Discovery and Scoping Workshops, IT Consulting, AI-Assisted Development, Staff Augmentation, DevOps and Infrastructure Support.
Industry Experience
FinTech, Banking, Healthcare, Retail, PropTech, Food & Beverage, HR & Enterprise Systems, Manufacturing, Sports
Engagement Models
Full project ownership with end to end development, and staff augmentation or team extension.
Founded: 2016
Team Size: 50-249
Location: Warsaw, Poland
Minimum Project: $25,000+
Clutch Rating: 5
8. Droids On Roids
Website: www.thedroidsonroids.com
Company Overview
Droids On Roids is a mobile and web app development company based in Wrocław, Poland, founded in 2011 and led by co-founder and CEO Wojciech Szwajkiewicz.
With more than 13 years of experience and over 130 delivered projects for global brands and startups, the company helps businesses build scalable digital products across mobile, web, and desktop platforms.
Recognized among the fastest-growing technology companies in Central and Eastern Europe and now part of the Apadmi group, Droids On Roids is known for its structured team and process methodology, agile execution, and data-driven product improvement that ensures reliable delivery, strong collaboration, and long-term product success for founders.
Tech Stack
Flutter, Kotlin, Swift, React Native, Kotlin Multiplatform, iOS, Android, Dart, Objective-C, Java, C (NDK)
Core Services
Product strategy and discovery, product design, mobile and web app development, cross platform and native app development, Flutter and Kotlin Multiplatform development, UI and UX design, backend and API development, quality assurance and testing, maintenance and support, and technology consulting.
Industry Experience
Finance, eCommerce App Development, Healthcare App Development, Internet of Things, Business, Lifestyle
Engagement Models
Dedicated feature teams, time and material for continuous development, fixed-price for MVPs and well-bounded projects, team extension
Founded: 2011
Team Size: 50-249
Locations: Wrocław, Poland
Minimum Project: $75,000+
Clutch Rating: 4.9
9. DBB Software
Website: https://dbbsoftware.com/
Company Overview
DBB Software (Driven By Business) is a custom software development company headquartered in Kraków, Poland, with additional operations in Dnipro, Ukraine. The company specializes in full-cycle software development for U.S. startups and enterprises.
Startups and enterprises choose DBB Software for its proprietary pre-built solutions library, which accelerates development timelines by up to 50 percent, reduces POC and prototype stages by 30 percent, and cuts planning time by 50 percent.
The company is a certified AWS Select Tier Partner and holds Microsoft Azure and MongoDB certifications. It operates through flexible engagement models, including dedicated teams, team extension, and project-based services. With over 10 years of industry experience, DBB Software has completed 100+ projects for industry leaders such as JLL, WeWork, and RedAlpine.
Tech Stack
Kotlin, Swift, Flutter
Core Services
Product discovery, MVP development, web development, mobile app development (iOS & Android), AI development, ML development, testing & QA, DevOps services, infrastructure services, digital transformation, UI/UX design, IT consulting, IT support, dedicated development teams, software integration (CMS/CRM/ERP), and AWS integration.
Industry Experience
E-commerce, Real Estate, Transportation & Logistics, Travel & Hospitality, EdTech, HR Platforms, Social Networks, Healthcare & Biotech, and FinTech.
Engagement Models
Fixed-price commitment, time and material flexibility, exclusive dedicated teams
Founded: 2015
Team Size: 50-249
Locations: Kraków, Poland (Headquarters) & Dnipro, Ukraine
Minimum Project: $25,000+
Clutch Rating: 5.0
10. Code Brew Labs
Website: www.code-brew.com
Company Overview
Code Brew Labs is a custom software and mobile app development company headquartered in Dubai, United Arab Emirates, with additional operations in Chandigarh, India. Founded in 2013, the company focuses on AI-powered and future-ready digital transformation solutions for U.S. startups and enterprises.
Startups and enterprises choose Code Brew Labs for its broad expertise in business analytics, IoT, cloud computing, artificial intelligence, blockchain, AR, VR, and immersive digital experiences. The company follows a design-first approach that prioritizes user experience and maintains a strong commitment to client satisfaction.
With more than 13 years of experience, Code Brew Labs has served thousands of businesses, including well-known global brands. The company holds a strong presence on Clutch with verified client reviews and has supported startups in securing over $50 million in funding.
Tech Stack
Swift, Objective-C, Kotlin, Java, Flutter, React Native, Progressive Web Apps
Core Services
Ideation and design, mobile app development (Android, iOS, Flutter, and cross-platform), web and custom software development, AI and ML development, blockchain solutions, testing and QA, DevOps and infrastructure services, UI/UX design, API and e-commerce development, IoT and fintech solutions.
Industry Experience
Food & Beverage, E-commerce, Real Estate, Transportation & Logistics, Travel & Hospitality, EdTech, HR Platforms, Social Networks, Healthcare & Biotech, FinTech, Entertainment, On-Demand Services, Dating & Social Media, Fantasy & Betting, and Fitness.
Engagement Models
Dedicated development teams, time-and-materials, fixed-scope project delivery
Founded: 2013
Team Size: 250-999 (250+ engineers)
Locations: Dubai, UAE (Headquarters) & Chandigarh, India
Minimum Project: $10,000+
Clutch Rating: 4.2
Ready to Build Your Mobile App? Here's What to Do Next
We hope this list of the top 10 mobile app development companies helps you find the perfect partner for your startup.
While choosing any company from this list puts you in good hands, there are a few critical factors you should consider before making your final decision:
Technical expertise alignment: Ensure they specialize in your required tech stack.
Industry experience: Look for proven success in your specific industry.
Communication & transparency: Strong project management and clear communication channels are essential.
Budget & timeline fit: Confirm their pricing models align with your startup's budget and launch goals.
Post-launch support: Verify they offer ongoing maintenance, updates, and scaling support.
Once you have shortlisted a few companies, we highly recommend reading our latest guide, How to Hire Mobile App Developers for Your Startup in 2026. This guide explains different engagement models, whether you are hiring freelancers, building an in-house team, or choosing software outsourcing. It will help you make an informed decision based on your specific needs, budget, and long-term vision.
Reach out to these top-rated companies, request proposals, and start building your mobile app today!
Frequently Asked Questions
Which is the best mobile app development company for USA startups?
If you are at an early startup stage and looking for strong expertise with cost effective solutions, MTechZilla is a solid choice, while TechGropse and LeanCode are also reliable options depending on your product needs and technology focus.
How much does it cost to develop a mobile app for a startup?
We recommend reading our comprehensive guide, How Much Does It Cost to Develop a Mobile App for a Startup?
This detailed pricing guide explains the cost differences across major hiring models, including:
In-house teams
Freelancers
Staff augmentation
Agency outsourcing
How long does it take to build a mobile app?
An MVP typically takes around 2 to 4 months to develop, while a standard mobile app usually requires 4 to 6 months. More complex applications with advanced features, integrations, or scalability needs can take 6 to 12 months or longer to complete.
What tech stack should I use for my mobile app?
In 2026, React Native remains the most popular choice for cross platform mobile app development, followed by Flutter for building fast and scalable applications across devices.