Data Labeling & Annotation

Data labeling that gives AI its ground truth

Aarvexa delivers accurate, consistent training data for images, video, text, audio and 3D, labeled by trained teams, pre-labeled by AI and verified through multi-layer quality assurance.

  • Every data type
  • Multi-layer QA
  • Secure by default
Annotators

Trained · NDA-bound

Gold-standard check

Running

What we label

Eight services around one quality core

Pick a service on the ring. Every one runs through the same annotation, review and QA engine.

Image annotation

Bounding boxes, polygons, keypoints and pixel-perfect segmentation for vision models.

  • Boxes & polygons
  • Semantic & instance masks
  • Keypoints & landmarks
Data types

Every kind of data, labeled the way your model needs

Image annotation

Pixel-accurate ground truth for vision models

From fast bounding boxes to detailed segmentation masks, with class taxonomies and attribute tags built around your model.

Used for
Detection, segmentation, inspection, retail recognition
Bounding boxPolygonKeypointsSegmentation
Our workflow

From raw data to model-ready labels in six stations

Work moves down the line. Nothing ships until it has been annotated, reviewed and audited.

Station 1

Ingest & scope

Data is received securely, sampled and profiled. We agree the taxonomy, edge cases and accuracy targets.

Station 2

AI pre-label

Models propose first-pass labels so people verify and correct instead of starting from zero.

Station 3

Human annotate

Trained annotators label to your written guidelines, with domain specialists for complex data.

Station 4

Peer review

A second pair of eyes checks every task type, and disagreements go to a reviewer.

Station 5

QA audit

Gold-standard checks and statistical sampling measure accuracy against your threshold.

Station 6

Deliver & learn

Data ships in your format. Model feedback and error analysis sharpen the next batch.

Quality assurance

Quality is measured at four levels, not promised

Typical targets shown. Final thresholds are agreed per project after the pilot.

98%target accuracy

Gold-standard checks

Hidden pre-labeled tasks measure each annotator continuously, so drift is caught within hours rather than at delivery.

94%inter-annotator agreement

Consensus voting

Ambiguous items are labeled by several people. Agreement is measured and disagreements are resolved by a senior reviewer.

100%tasks reviewed

Multi-layer review

Annotate, review and audit are separate roles. The person who labeled a task never approves it.

90%issues fixed in one cycle

Feedback loop

Error patterns feed guideline updates and annotator coaching, and your model's failures guide what we relabel.

Industries

Built for the teams shipping real-world AI

Scroll through the stack. Each industry has its own taxonomy, edge cases and review rules.

01 / 06

Autonomous driving

Every lane, light and pedestrian, labeled

Camera, LiDAR and radar labeling for perception teams, with sequence-level consistency and rare-scenario mining.

Typical labels
  • 3D cuboids
  • Lane lines
  • Traffic signs
  • Free space
02 / 06

Healthcare & medical imaging

Clinician-guided annotation

Segmentation and classification of scans and records by trained reviewers, under strict privacy controls.

Typical labels
  • Organ segmentation
  • Findings
  • Report entities
  • De-identification
03 / 06

Retail & e-commerce

Catalogues machines can understand

Product attributes, shelf recognition, visual search and review sentiment labeled at catalogue scale.

Typical labels
  • Attributes
  • SKU boxes
  • Taxonomy
  • Sentiment
04 / 06

Agriculture & geospatial

Crops, fields and land from above

Satellite and drone imagery labeled for crop health, yield, land use and change detection.

Typical labels
  • Crop types
  • Field boundaries
  • Disease spots
  • Land use
05 / 06

Finance & insurance

Documents and claims, structured

Forms, invoices, statements and claim photos labeled for extraction, fraud and risk models.

Typical labels
  • Key-value
  • Tables
  • Damage areas
  • Entities
06 / 06

Manufacturing & robotics

Defects and grasps, defined precisely

Defect classes, part positions and grasp points labeled to teach inspection and robotics models.

Typical labels
  • Defects
  • Part pose
  • Grasp points
  • Assembly steps
Why outsource to Aarvexa

In-house, crowd or a managed team?

A fair look at the trade-offs, based on what AI teams usually tell us.

In-house teamCrowd marketplaceAarvexaRecommended
Domain expertise

Strong, but pulled from core work

Anonymous and uneven

Trained and specialised per project

Consistency

Varies with workload

Low, many contributors

High, stable core team

Data security

Controlled

Hard to control

Secure environments and NDAs

Speed to scale

Slow to hire

Fast to start

Fast ramp with a managed team

Quality assurance

Ad hoc

Basic checks

Multi-layer QA and audits

Cost control

Fixed headcount

Hidden rework

Predictable per-unit pricing

Delivery formats

Labels delivered in the format your pipeline already reads

Pick a format to see a sample of what lands in your storage or API.

annotations.jsonjson
{
  "images": [{ "id": 1, "file_name": "street_0042.jpg", "width": 1280, "height": 720 }],
  "annotations": [
    { "id": 7, "image_id": 1, "category_id": 3,
      "bbox": [412, 288, 164, 120], "area": 19680, "iscrowd": 0 }
  ],
  "categories": [{ "id": 3, "name": "car" }]
}
  • Works in
  • CVAT
  • Label Studio
  • Labelbox
  • SuperAnnotate
  • Prodigy
  • V7
  • Scale-compatible APIs
  • Custom tooling
How to start

Start with a free pilot, scale when the numbers convince you

1Week 1

Pilot batch

Send a sample. We label it to your spec and share the accuracy report, so you judge quality before committing.

  • Free sample on request
  • Guideline draft
  • Accuracy report
2Week 2

Calibrate

Guidelines, edge cases and QA thresholds are tuned with your team until the labels match what your model needs.

  • Edge-case library
  • Agreed thresholds
  • Tool setup
3Week 3–4

Ramp the team

A trained, dedicated team scales up, with team leads and reviewers tracking quality daily.

  • Dedicated annotators
  • Daily quality reports
  • Weekly sync
4Ongoing

Scale & optimise

Volume grows while per-unit cost and error rates fall, driven by pre-labeling and feedback from your model.

  • Model-assisted labeling
  • Throughput planning
  • Continuous audits
Security & trust

Your data is handled like it is ours

Encrypted transfer

Data moves over encrypted channels and rests encrypted

Vetted, NDA-bound team

Background-checked annotators under confidentiality agreements

Role-based access

People see only the projects and data they need

Audit logs

Every access and label change is recorded

Privacy-aligned

Processes designed to align with GDPR and your policies

Secure environments

Work happens in controlled workspaces with no local copies

FAQ

Frequently Asked Questions

Straight answers on data labeling: applications, technology, safety, cost and timelines.

Data labeling, or annotation, is the process of adding meaningful tags to raw data such as images, video, text, audio and documents, so machine learning models can learn from examples and be evaluated against ground truth.

Model quality depends on training data quality. Accurate, consistent labels improve accuracy, reduce bias and cut the time spent debugging models that learned from noisy data.

Managed data labeling and annotation across images, video, text, audio, 3D and documents, with pre-labeling, multi-layer quality assurance, secure delivery and ongoing feedback from your model results.

Machine learning and AI teams, product companies adding AI features, start-ups preparing training data and enterprises that need consistent, secure labeling at scale.

Book a free consultation and share a sample. We label a pilot batch to your guidelines and report the accuracy before you commit to a larger volume.

Send a sample. Get it labeled free.

Share a few hundred items and your guidelines. We return a labeled pilot batch with an accuracy report, so you decide with evidence.

What can we help with?

We'll only use these details to reply to your inquiry.