Appen

Appen is a publicly listed (ASX: APX) data company that has supplied human-labeled and human-evaluated datasets for machine learning since 1996. Its current services span frontier-model alignment (RLHF, SFT, red-teaming), speech and audio collection across 500+ locales, multimodal vision-language annotation, and LiDAR/sensor-fusion labeling for physical AI and robotics.