Manage projects, track time, and bill your clients with one easy‑to‑use collaboration tool.
We are A51, the company behind Active Collab. We're privately owned, 30 people strong, and have 8 years of experience in project management software. As simple as that.
Active Collab began as a successful open-source project, which later grew to be a very successful commercial product. All we care about is developing exceptional software and making Active Collab the best project management tool in the world.
At your service! Check out our Help guides or get support via email, chat or phone every workday in English.
A51 d.o.o., Novosadskog sajma 4A/30
21000 Novi Sad, Serbia