- Year established
- 2003
- Team size
- 50–249
- Hourly rate
- $150 – $199/hr
- Typical budget
- Starts at $10,000
- Notable clients
- Mailchimp, Kickstarter, Vimeo, Harvard Business Review, Postmates, DigitalOcean, MoMA, Disney
- Best for
- Companies that want a small senior team embedded alongside their own people, especially on Rails codebases or an MVP that needs to be built properly the first time.
About thoughtbot
A consultancy rather than a conventional agency: the model is small teams of designers and developers embedded with the client, and the site is explicit that engagements run at every stage from early startup to scaling enterprise. The Rails specialism is the strongest differentiator, and Rails maintenance is offered as a standing service, which makes this one of the few records we hold with a genuine ongoing support line.
Stated sector focus is healthcare, finance and insurance. The client list is broad and recognisable, spanning Mailchimp, Kickstarter, Vimeo, Harvard Business Review and Disney.
Two gaps to close before this is used in a location filtered list. The site states no headquarters, describing teammates across the Americas, Europe, West Asia and Africa, so `location` is deliberately blank rather than guessed. It also states no team size, founding year or pricing.
The Rails specialism is the deepest thing here and it shapes the work. If your stack is committed elsewhere, ask early which of their teams would actually take your project and what they have shipped on it.
Featured work
British Business Bank — Guarantees Portal
thoughtbot built the API and application architecture behind the UK state bank's Coronavirus loan guarantee portal, then migrated it from a UK cloud host to Azure with minimal downtime. The portal handled over £78bn of loan distribution and was shortlisted at the 2021 Banking Tech Awards. It shows the firm can take on regulated, high-volume public financial infrastructure rather than only greenfield startup work.
- Ruby on Rails
- API
- Azure
CloseKnit Health — virtual urgent care platform
A multi-platform virtual primary and urgent care application built in Rails with Hotwire, integrating several healthcare providers. CloseKnit's product manager reports release speed improved eight to ten times over a year, and the Android and iOS teams inherited web features with little extra code. Demonstrates a deliberate bet on server-rendered Hotwire to avoid maintaining three separate clients.
- Ruby on Rails
- Hotwire
- Healthcare
Folio — hotel procurement marketplace MVP
thoughtbot took Folio from nothing to a paying-customer Rails MVP in under a year, covering product management, UX and engineering. Folio went on to 200 hotel clients and a $14M Series A, and used the engagement's hand-off process to stand up its own in-house engineering team. Useful evidence for founders who want a build partner that plans its own exit.
- Ruby on Rails
- MVP
- Marketplaces









