We're Formidable-

The JavaScript Experts.

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A JavaScript Consultancy Built for the Modern Web

Formidable is a Seattle and London-based engineering consultancy and open source software organization, specializing in React.js, React Native, GraphQL, Node.js, and the extended JavaScript ecosystem.

Since 2013, our agile team has worked with companies ranging in size from startups, to Fortune 100s, to build quality software and level up engineering teams.

Launching a new JavaScript Product? Need Help with an Existing Project?

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Starbucks Progressive Web App

Universally accessible ordering for established and emerging markets

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Starbucks ordering interface on a mobile device

Prix.ai Pricing Dashboard

User-friendly data visualization for complex dynamic pricing models

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Prix.ai pricing dashboard interface on a laptop

Walmart React Native Pharmacy

Improved performance, speed and user experience on mobile apps with React Native.

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Walmart pharmacy interface on a mobile device

What can we do for your company?

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We approach each project with a long-term view, ensuring that sustainability, maintainability, and stability are always at the core of our decisions. Our objective is to help you create quality software that scales well, performs better, improves user satisfaction, and helps you achieve your business goals.

Formidable utilizes agile methodologies to ensure an efficient, adaptable process that helps clients meet their project goals and objectives. We quickly identify solutions (no 10-week discovery phases here) and work with you to create an efficient plan to ensure that we’re always delivering. Embedding with your team, we also teach best practices to ensure that your developers can carry each project into the future once our work is done.

Ready to get started?

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Our team of JavaScript experts is deeply invested in the JavaScript community. We are React core contributors, open source advocates, and creative thinkers devoted to improving the modern web. Our team is well-known for our contributions to the open source software community, creating software used by everyone from Airbnb to USAFacts. We regularly speak at conferences to share our expertise with the JavaScript community, and attend even more to keep at the forefront of the newest frameworks and technologies.

Get to know our team