annotation
(5)
Marker.io
Capture website feedback, bug reports, and visual feedback faster - without endless emails, PDFs, or screenshots.
BugHerd
Getting client feedback on websites - made ridiculously easy. Clients point and click on a live site, and BugHerd turns every comment into a developer-ready task.
Labelbox
Labelbox is a San Francisco-based AI data factory that helps frontier AI labs and enterprises generate, label, and evaluate the high-quality training data their models need. Its platform combines annotation tools, model-assisted automation, and a global expert network (Alignerr) to power post-training, RLHF, and multimodal reasoning workloads.
Datasaur
Datasaur builds secure, private AI infrastructure for regulated enterprises - starting with one of the most loved NLP data labeling platforms and evolving into LLM Labs, a workbench for building custom, on-prem ChatGPT-style assistants on a company's own data.
Scale AI
Scale AI is a San Francisco-based AI infrastructure company founded in 2016 by Alexandr Wang and Lucy Guo. It provides the data engine, evaluation tools, and AI deployment platforms that power the world's leading AI labs, Fortune 500 enterprises, and US government agencies. By combining a massive distributed workforce with proprietary tooling, Scale accelerates AI development through high-quality data labeling, RLHF, model evaluation, and agentic platforms — making it one of the most consequential picks-and-shovels companies in the modern AI boom, with a $29B valuation as of mid-2025.