Data annotation services

Every service runs on the same foundation: labelers certified on your guidelines, two-stage review and transparent quality reporting.

AI-generated image annotation visual
01 / Vision

Image annotation

For object detection, segmentation and classification models.

  • Bounding boxes and polygons
  • Semantic and instance segmentation
  • Keypoints and landmarks
  • Image classification
AI-generated video annotation visual
02 / Temporal data

Video annotation

For tracking, activity recognition and autonomous systems.

  • Object tracking across frames
  • Event and action tagging
  • Interpolated keyframe boxes
AI-generated text and NLP visual
03 / Language AI

Text & NLP

For search, support automation and language models.

  • Intent and topic classification
  • Named entity recognition
  • Sentiment and toxicity
  • English, Swahili and Sheng
AI-generated audio and speech data visual
04 / Speech

Audio & speech

For speech recognition, call analytics and conversational systems.

  • Verbatim and clean transcription
  • Speaker diarization
  • Accent and language tagging
AI-generated LLM evaluation visual
05 / Generative AI

LLM evaluation & RLHF

For teams training and testing language models.

  • Response rating against rubrics
  • Pairwise preference data
  • Prompt writing and red-teaming
AI-generated document processing visual
06 / Documents

Document processing

For OCR, extraction and finance workflows.

  • OCR verification and correction
  • Key-value extraction
  • PII redaction
AI-generated LiDAR annotation visual
07 / 3D data

LiDAR annotation

High-precision 3D labeling for autonomous vehicles, robotics, mapping and perception.

  • 3D bounding boxes
  • Object classification and tracking
  • Semantic and point-level labeling
  • Lane and road marking
AI-generated 2D and 3D computer vision visual
08 / Computer vision

2D / 3D Computer Vision

Visual annotation for models that need to detect, recognize, locate and understand objects and scenes.

  • 2D bounding boxes and 3D cuboids
  • Keypoints and object attributes
  • Polygons, polylines and tracking
AI-generated segmentation visual
09 / Pixel-level data

Image & Video Segmentation

Pixel-precise annotation that helps models distinguish objects, regions and scene elements.

  • Semantic, instance and panoptic segmentation
  • Polygon annotation and mask creation
  • Scene segmentation
AI-generated model-assisted pre-annotation visual
10 / Automation

Model-assisted pre-annotation

Use machine-generated labels as a starting point, with humans validating and correcting the final output.

  • Pre-label review
  • Confidence-based routing
  • Human verification
Quality you can audit

Two-stage review on every delivered batch.

Every batch is labeled, then reviewed by a senior QA reviewer, then spot-checked by a project lead before delivery. Items that fail go back to the original labeler with written feedback.

Pricing

Per item, per hour or per dedicated team, depending on task complexity.

Minimums

No minimum for pilots. Production projects are scoped around volume and workflow.

Turnaround

Agreed per batch, typically 24–72 hours for standard production work.

Tools

Our platform or yours — we work in common labeling tools and client environments.

Weekly reporting can include accuracy by label class, reviewer comments, throughput and audit samples.
AI-generated visualization of annotation production
From dataset to delivery

A structured workflow for every project.

1. Understand

Review the dataset, taxonomy, annotation guidelines and acceptance criteria.

2. Train & align

Prepare and qualify annotators around the project workflow.

3. Annotate

Produce labels using your preferred tools and project standards.

4. Review & improve

Identify inconsistencies, return failed items and incorporate feedback.

Try us on your own data.

Send a sample and your guidelines. We will help scope a practical pilot and production workflow.

Request a pilot →