Your Rails app isn't done yet. Neither are we.
Your Rails application has history. Features added over time. Integrations layered in. Years of decisions have shaped how the system works today.
After working on hundreds of Rails applications over the past two decades, we’ve learned how to help teams evolve what they already have. We combine deep Rails experience with modern tools, including AI-assisted workflows, to help teams modernize, maintain, and improve the applications their business depends on.
Every month your Rails app goes without attention, technical debt compounds, making future changes slower and more expensive.
Wherever your app is in its lifecycle, we help you plan the changes that will make the biggest impact next.

Even if you're not sure what your app needs...
Let's chat about your options.
Some of the wonderful clients who have trusted us
Here's how we can help
Flexible Capacity
Scale up or down as your needs change
Future-Proofing
Stop dreading your next Rails upgrade
Modernization
Make your app feel new again
Business Planning
Get a technical roadmap you can actually act on
Strategic Technical Consulting
Make confident tech decisions without hiring a CTO
AI-Augmented Development
AI-augmented development that ships faster
Expertise and experience.
We've been a part of the Ruby on Rails community since 2004, and we've worked with over 100 delighted clients. Our seasoned team of consultants will help you modernize your existing software, making it faster, safer, and more reliable.
Cost savings.
We help you get more from the software you already have. AI-assisted workflows help us identify issues sooner and move faster, reducing costly surprises for your team and your users.
A no-risk partnership.
We offer a 30-day money-back guarantee for all of our new client engagements, so you can try Planet Argon's services risk-free!
Fractional development services.
Not looking for a full-time team? We offer fractional, part-time Rails consulting services. Enjoy the benefits of an entire development team without the overhead of recruiting and managing one.

What our clients are saying about us
Adriel Henderson
Web Applications Supervisor at Screaming Circuits
Planet Argon has been an incredible stabilizing force for our web platform. We needed a partner who could plug the holes in our web environment and provide the tools needed for smooth development, testing and deployment. Planet Argon has more than met that need. They are without a doubt the most professional and adept development team I have worked with.
Daniele Volpe
General Manager at The Gnomon Workshop
Working with Planet Argon has been a great experience. The transition from our previous provider to them was very smooth, and they took care of everything within a very short period of time. Moreover, our engagement has been successful because, thanks to them, our platform keeps growing. We’ve assigned them some development tasks, and we’ve been very pleased by how our site has been growing.
Twila Rios
Manager of Digital Information Systems at Office of the General Convention
Planet Argon is consistently responsive and delivers their tasks on time. They contact me when aspects of the project need to be discussed and provide me with a detailed approach to their plans and actions.
I am impressed at their ability to take on our multiple, complicated existing apps and learn them quickly and well, and quite happy with the numerous improvements they have made for us. Also, their attention to maintenance and support tasks, in addition to development, has been great.
Jonathan Silver
Digital Marketing Director at West Dermatology
While their approach to customer serivce and client relations is great, what I actually found most impressive was their ability to help develop solutions in creative ways. None of the complex content issues were a problem, and the team was always open to new information/new requirements regardless of where we were in the process.