Enterprise & Managed Data Labeling Platforms
8 entriesEnterprise & Managed Data Labeling Platforms vendors and products.
01AppenDelivers expert human data for frontier AI, with 30 years of data excellence helping teams build, train, and deploy trustworthy AI models across 500+ locales.
02SuperAnnotateEnd-to-end platform to annotate, version, and manage ground truth data for your AI, ranked the #1 data annotation platform on G2.
03TELUS DigitalFormerly TELUS International; enriches data with a global range of human-annotation services at scale, spanning generative AI, physical AI, and robotics data.
04Scale Data EngineFormerly marketed as Scale Rapid; collects, curates, and annotates data to train and evaluate models with high-quality labels from domain experts.
05LabelboxNow positioned as an RL data engine for AI teams, partnering with leading AI labs on environments, custom evaluations, and enterprise agent training.
06Kognic (formerly Annotell)Human-in-the-loop annotation platform for safety-critical perception systems, built for autonomous driving and ADAS. Trusted by Continental, Qualcomm, Zenseact, and Bosch.
07DatasaurA leading NLP data-labeling platform, with annotation, collaboration, and automation at its core, offered through Datasaur's Data Studio product.
08Hasty (via CloudFactory)Hasty's data-centric ML platform for building and deploying vision AI applications faster and more reliably, now offered as part of CloudFactory's managed workforce and labeling solution.
Cloud & Vision-Specific Annotation Platforms
5 entriesCloud & Vision-Specific Annotation Platforms vendors and products.
09Amazon SageMaker Ground TruthFormerly SageMaker Data Labeling; helps build highly accurate training datasets and now includes hands-on support to fine-tune generative AI models.
10DataloopAn enterprise-first AI development platform combining data management, models, pipelines, and human feedback in one unified, ready-to-go environment.
11Deepen AIMulti-sensor LiDAR annotation and calibration tools to accelerate computer vision training for autonomous vehicles, robotics, and physical AI.
12understand.aiAutomation engine for computer vision data annotation, built to cut costs and accelerate training and validation of autonomous driving technology.
13V7 DarwinThe AI data engine to manage your datasets — solve labeling tasks faster with an API for image, video, and medical annotation and dataset management.
Open Source & Self-Hosted Annotation Tools
5 entriesOpen Source & Self-Hosted Annotation Tools vendors and products.
14Label StudioThe most flexible open-source data labeling and AI evaluation platform, supporting agent traces, LLM evals, RLHF, computer vision, and NLP.
15CVATA leading platform for building high-quality visual datasets, now maintained under the independent cvat-ai GitHub org (moved from Intel's OpenVINO Toolkit).
16LabelImgA graphical image annotation tool; now archived and part of the Label Studio community, with the repository preserved under HumanSignal's GitHub org.
17SlothA tool for labeling image and video data for computer vision research, built in Python with a lightweight, extensible design. The GitHub repository's last commit was in June 2017, so check its activity before relying on it.
18tagtogAn AI-enabled text annotation tool at its core for NLP, supporting PDF, Markdown, CSV, HTML, and tweets to create labeled datasets.
Related Pages
4 entriesRelated directories on this site.
Frequently Asked Questions
What is Data Labeling and Annotation Software?
Data labeling software helps teams annotate images, text, audio and video to create training data for machine learning.
How do I choose Data Labeling and Annotation Software?
Compare vendors on supported data types, quality control, workforce options, model-assisted labeling and security.
Which vendors are listed for Data Labeling and Annotation Software?
This directory lists 18 products and vendors, including Appen, SuperAnnotate, TELUS Digital, Scale Data Engine, Labelbox.
What other directories relate to Data Labeling and Annotation Software?
See MLOps Platforms, Agentic AI Observability Platforms, Feature Store Solutions.
How current are the listings?
Links were rechecked in October 2026. Vendors rename, merge and retire products often, so confirm details on the vendor's site; renamed products note where their old address now leads.