Appen | Company Profile - Revenue, Headcount, Tech Stack, Contacts

Appen is a global leader in providing high-quality, human-annotated datasets for machine learning and artificial intelligence. Founded in 1996 in Australia by Dr. Julie Vonwiller and Chris Vonwiller, the company has over 25 years of experience in AI training data. The organization serves major technology companies and governments, helping to enhance AI interactions across various applications.

Specializing in collecting, annotating, and labeling vast datasets—including images, text, speech, audio, and video—Appen leverages a global crowd of over 1 million contributors to efficiently support tasks like tagging and evaluation. Its solutions include crowd-sourced data annotation and expertise-driven services, which are essential for training AI models in search relevance, generative AI, and machine learning. The company serves eight of the top ten global technology companies and various government entities.