Flutter has rapidly become one of the most powerful frameworks for building high-performance, cross-platform applications — enabling businesses to deliver seamless experiences across mobile, web, and desktop with a single codebase. As the ecosystem matures and more enterprises adopt Flutter for mission-critical products, choosing the right development partner becomes essential.
To help companies navigate this landscape, we’ve compiled a list of the top Flutter development agencies known for their proven track records, technical expertise, and ability to deliver scalable digital products. These five companies consistently demonstrate excellence in engineering, design, and product strategy — making them reliable partners for startups and global enterprises alike.
1. LeanCode
LeanCode is our own choice for a top-tier Flutter development agency. They’re officially recognised by Flutter as a recommended consultant, offering cross-platform solutions (mobile, web, desktop) for enterprise clients. Their team of 80+ engineers — including two Google Developer Experts — brings together strong technical expertise and business thinking.
LeanCode prides itself on delivering secure, scalable, high-performance software, guiding projects from strategy and design through development, launch, and support. Their track record includes enterprise-grade apps and collaborations with globally recognized brands.
Website: https://leancode.co/
Location: Warsaw, Poland
Year founded: 2016
Hourly rates: $50 – $99 / hr
Clutch rating: 5.0
2. Cheesecake Labs
Cheesecake Labs is a global software design and engineering agency with strong expertise in mobile and web applications — and a solid track record in delivering cross-platform projects. They combine creative design, responsive development, and modern technologies (including Flutter) to build polished products tailored for startups and established companies alike.
Their client-centred, collaborative approach and emphasis on transparent communication help them act as an extension of their customers’ teams rather than just an external vendor.
Website: https://cheesecakelabs.com/
Location: San Francisco, United States
Year founded: 2013
Hourly rates: $50 – $99 / hr
Clutch rating: 4.9
3. GeekyAnts
GeekyAnts is another strong contender for Flutter-based and cross-platform development. Known for delivering cost-effective solutions and aligning well with client budgets, GeekyAnts serves clients globally from several offices. Their flexibility makes them a solid fit for small to medium-sized projects, especially when budget constraints are a factor.
Website: https://geekyants.com/
Location: Bengaluru, India
Year founded: 2006
Hourly rates: $25 – $49 / hr
Clutch rating: 4.9
4. Ptolemay
Ptolemay is a full-cycle IT development company, headquartered in Walnut, California, with a focus on cross-platform apps using Flutter — particularly for startups and growing companies. They emphasise flexibility, speed and agile delivery, offering services from project discovery and strategy to back-end integration, UI/UX design, and AI/ML features.
Their lean, remote-friendly team model caters well to clients seeking fast turnarounds or MVPs without unnecessary overhead.
Website: https://www.ptolemay.com/
Location: Walnut, CA
Year founded: 2020
Hourly rates: $50 – $99 / hr
Clutch rating: 5.0
5. Konstant Infosolutions
Konstant Infosolutions is a seasoned, globally present software development firm offering mobile, web, and custom development services — including Flutter and cross-platform solutions. With decades of experience and hundreds of completed projects, they provide a cost-effective option for companies seeking offshore or mixed-team approaches.
Their broad service portfolio (cloud, IoT, full-stack, enterprise mobility) makes them suitable for large-scale projects and clients from various industries.
Website: https://www.konstantinfo.com/
Location: Jaipur, India
Year founded: 2003
Hourly rates: $25 – $49 / hr
Clutch rating: 4.8
Summary
Selecting the right Flutter development partner can significantly influence the performance, scalability, and long-term success of your product. The agencies highlighted in this list stand out for their deep technical knowledge, strong delivery processes, and commitment to innovation. Whether you’re building a complex enterprise platform, a customer-facing mobile app, or an MVP to validate your idea, these companies bring the expertise needed to turn your vision into a robust, high-quality digital solution.
No matter which agency you choose — from specialized boutique studios to globally established engineering teams — each has a strong reputation within the Flutter community and a history of building impactful products. With the right partner by your side, you can confidently leverage the power of Flutter to accelerate development, reduce costs, and deliver outstanding user experiences.
