Data Annotation & Labeling

Training data your models can trust

Image, video, text, audio and LLM annotation with multi-layer quality assurance — delivered by managed expert teams.

Annotated street scene

01 — Services

Everything your data pipeline needs

Quality Assurance

Multi-level review, consensus labeling and quality metrics.

Consensus
Gold sets
Audit
Inter-annotator agreement

Data Collection & Preparation

Collection, cleaning, deduplication and structuring of datasets.

Collection
Cleaning
Deduplication
Formatting

LLM Data Annotation

Instruction authoring, RLHF ranking and model response evaluation.

RLHF
Preference ranking
Red teaming
Evals

Audio Annotation

Transcription, speech, speaker and sound event labeling.

Transcription
Speaker diarization
Sound events

Text Annotation

Classification, NER, data extraction and NLP labeling.

NER
Classification
Sentiment
Relation extraction

Video Annotation

Frame-by-frame annotation and object tracking, events and actions.

Object tracking
Action labels
Frame interpolation

Image Annotation

Bounding boxes, polygons, semantic and instance segmentation, keypoints.

Bounding box
Polygon
Segmentation
Keypoints

02 — Interactive Demos

See annotation in action

Image annotation demo
car 0.98
car 0.95
person 0.97

03 — Data Annotation Solutions

Industry expertise, domain-trained annotators

Healthcare

Medical imaging segmentation, clinical text de-identification, radiology labeling.

Finance

Document extraction, KYC, fraud signal labeling and sentiment analysis.

Automotive

LiDAR, camera and radar annotation for ADAS and autonomous driving.

E-commerce

Product tagging, catalog enrichment, visual search and review classification.

AI & LLM

RLHF, preference ranking, evaluation sets and red-teaming for foundation models.

04 — Data Annotation Process

A transparent process with quality built in

01

Scoping

We define taxonomy, guidelines, volumes and accuracy targets.

02

Pilot

A small calibrated batch validates instructions and tooling.

03

Production

Trained annotator teams label at scale in secure workspaces.

04

Quality Assurance

Consensus review, gold sets and audits keep accuracy above target.

05

Delivery

Datasets delivered in COCO, YOLO, JSON, CSV or your format.

99%+
Target label accuracy
3 levels
Review & QA layers
NDA
Signed before data access
Annotation team at work

05 — Why work with us

From raw data to trained model — under one roof

  • Managed, NDA-bound expert teams
  • Scalable from pilot to millions of items
  • Secure environments and data residency options
  • Custom tooling and API/SDK integrations
  • Transparent per-task or per-hour pricing
  • Direct pipeline into our GPU training clusters

06 — Request Data Annotation Quote

Scope your labeling project

Describe your dataset, label taxonomy and volume. We reply within one business day with a scoped proposal, and we agree a pilot batch before production starts.

  • Scope and timeline confirmed in writing
  • NDA signed before your data is accessed
  • Delivery in the format your pipeline already reads

Request Data Annotation Quote

Tell us about your workload — we respond within one business day.

Requests are delivered to office@hubblegroup.tr