37 Signals- Online office

Basecamp™—Our flagship product!
Project management and collaboration

Collaborate with your team and clients. Schedules, tasks, files, messages, and more.

Highrise™—Our newest product!
Online contact manager and simple CRM

Keep track of who your business talks to, what was said, and what to do next.

Backpack™ —Just updated!
Information organizer and calendar

Gather your ideas, to-dos, notes, photos & files online. Set email and mobile reminders.

Campfire™—iPhone Compatible!  
Real-time group chat for business

It's like instant messaging, but optimized for groups. Especially great for remote teams.