An up to date and manually curated list of top data annotation companies from all over the world. Grouped by annotation type.

I’ve been looking for data labeling for computer vision data. There are a lot of good companies offering services. Most of them follow similar principles such as outsourcing to countries with a cheaper labor cost. From my experience, there are mostly differences in the data type they focus on (images vs audio vs text) as well as the way they work.

Unfortunately, the pricing isn’t always transparent. Usually, they charge per hour. For computer vision data this is usually around $1-$5 per hour per worker.

If you want to set up your own data annotation pipeline don’t forget to have a look at my blog about tools and frameworks.

List of Data Annotation Companies

Do you know another company, not on this list of data annotation companies or additional information I should add? Please, don’t hesitate to add a comment or drop me a message.