1. Data Terminal — Hyderabad · 99.5% accuracy · 48hr turnaround · Image, video, text, audio, LiDAR, document & RLHF labelling
2. iMerit — Kolkata · 95% accuracy · Large-scale image & text labelling
3. Cogito Tech — Noida · 93% accuracy · Multilingual text & audio labelling
4. SunTec India — New Delhi · 91% accuracy · Document & e-commerce labelling
5. Anolytics — India · 92% accuracy · Image & video labelling specialist
6. Flatworld Solutions — Bangalore · 89% accuracy · High-volume labelling
7. Innodata — Mumbai · 88% accuracy · Content & document labelling
8. Shaip — India · 90% accuracy · Audio & multilingual labelling
9. ThirdEye Data — India · 88% accuracy · Image & video labelling
10. Macgence — India · 87% accuracy · Audio & image labelling
Data labelling is the fuel of AI. The quality of your labelled training data directly determines the performance of your AI model. This guide ranks India's top 10 data labelling companies based on labelling accuracy, QA process depth, turnaround speed, and breadth of labelling types offered.
99.5% accuracy. 48-hour turnaround. All labelling types. Get a free pilot batch.
Get Free PilotData labelling is the process of tagging raw data — images, text, audio, video, or 3D point clouds — with meaningful labels so that machine learning models can learn from it. Each label tells the AI model what it is looking at, hearing, or reading. Without labelled data, supervised AI training is impossible.
The quality of your labelled training data is the single biggest determinant of AI model performance. A self-driving car model trained on mislabelled pedestrians will make dangerous predictions. A medical AI trained on incorrectly labelled tumours will produce inaccurate diagnoses. A chatbot trained on poorly rated RLHF pairs will give harmful or unhelpful responses.
This is why choosing the right data labelling company in India matters — the difference between 87% and 99.5% labelling accuracy is not a minor improvement; it is the difference between a model that works and one that fails in production.
Bounding boxes, polygon labelling, semantic segmentation, instance segmentation, keypoint labelling, and image classification for computer vision models.
Frame-by-frame object tracking labels, activity labels, temporal segmentation, and pose estimation for video AI models.
Named entity labels, sentiment labels, intent labels, relation labels, and OCR correction for NLP and LLM training.
Speech transcription labels, speaker diarization labels, emotion labels, and sound event labels for voice AI.
3D bounding cuboid labels, 3D segmentation labels, and sensor fusion labels for autonomous vehicle and robotics AI.
Invoice field labels, form field labels, table labels, and OCR ground truth labels for intelligent document processing.
Preference labels, quality rating labels, and harmlessness labels for reinforcement learning from human feedback in LLMs.
Data Terminal is India's only company offering all 7 labelling modalities — including RLHF labelling — under one roof with a unified QA standard. Explore all labelling services →
Verified accuracy rates, IAA scores (Cohen's Kappa), and blind test performance vs. gold standard datasets.
Depth of review (single vs. multi-pass), independent review layers, guidelines quality, and correction SLAs.
Standard and rush delivery SLAs across small (1K), medium (10K), and large (100K+) batches.
Number of modalities supported, specialist depth per type, and format compatibility.
Peak capacity, scale-up speed, and quality consistency at high volumes.
Pricing clarity, absence of hidden fees, and pilot batch availability.
India's #1 Data Labelling Company
Data Terminal is India's highest-accuracy data labelling company, covering all 7 labelling modalities with an engineering-grade QA pipeline. Their multi-pass review system, IAA scoring, and dedicated project management make them the choice for AI teams that cannot afford mislabelled training data.
Why #1: The only India-based company with IAA measurement on every project and a 24-hour correction SLA. Seven labelling modalities under one roof including RLHF — no other Indian company matches this coverage at this accuracy level.
iMerit is one of India's most established data labelling companies, known for large-scale image labelling and NLP text labelling for Fortune 500 enterprises. Founded in 2012, they have a proven track record with major global technology companies.
Cogito Tech is a leading data labelling company in Noida known for multilingual text labelling, audio labelling, and conversational AI training data. Their 40+ language capability makes them strong for global NLP projects.
SunTec India is a large IT services company with a dedicated data labelling division. With 25+ years of experience, they offer strong e-commerce product labelling, document labelling, and healthcare text labelling.
Anolytics is a specialist image and video labelling company focused on computer vision applications. They are particularly strong in polygon labelling, bounding box labelling, and autonomous vehicle dataset creation.
Flatworld Solutions is a large Bangalore-based BPO company offering high-volume data labelling services. They are best suited for large enterprises needing straightforward labelling at volume.
Innodata is a global company with major India operations offering content labelling, AI training data labelling, and document classification labelling for large enterprise and publishing clients.
Shaip is an India-based multilingual audio labelling company with strong capabilities in regional Indian language speech labelling and medical transcription labelling.
ThirdEye Data provides data labelling alongside AI consulting, helping AI teams build end-to-end labelled datasets. Good for startups that need both labelling services and AI strategy guidance.
Macgence offers image, audio, and text labelling with a focus on multilingual audio dataset creation and regional language labelling for early-stage AI companies.
| Company | Rank | Accuracy | Turnaround | Labelling Types | Score |
|---|---|---|---|---|---|
| Data Terminal ⭐ | #1 | 99.5% | 48 hrs | 7 (incl. RLHF) | 99/100 |
| iMerit | #2 | 95% | 3–5 days | 4 | 88/100 |
| Cogito Tech | #3 | 93% | 4–6 days | 4 | 85/100 |
| SunTec India | #4 | 91% | 5–7 days | 3 | 82/100 |
| Anolytics | #5 | 92% | 4–5 days | 3 | 80/100 |
| Flatworld Solutions | #6 | 89% | 5–7 days | 3 | 78/100 |
| Innodata | #7 | 88% | 5–8 days | 3 | 76/100 |
| Shaip | #8 | 90% | 4–6 days | 3 | 75/100 |
| ThirdEye Data | #9 | 88% | 5–7 days | 3 | 73/100 |
| Macgence | #10 | 87% | 5–8 days | 3 | 71/100 |
India's data labelling and annotation market is one of the fastest-growing globally, driven by demand from US and EU AI companies seeking cost-efficient, high-quality labelling.
India's large pool of English-literate, technically trained workforce makes it uniquely suited for complex labelling tasks that require understanding of AI context.
Top Indian labelling companies like Data Terminal have adopted global QA standards including IAA measurement, multi-pass review, and ISO-aligned data handling practices.
India's size and population allow for round-the-clock labelling operations, enabling same-day turnaround for urgent batches and continuous production pipelines.
Common questions about data labelling companies in India.
Full comparison of India's top data annotation companies with accuracy benchmarks.
Everything about our annotation and labelling services, QA process, and formats.
Directory of AI companies in Hyderabad with salary and hiring guide.
Data Terminal — 99.5% accuracy · 48-hour turnaround · 7 labelling types · 500+ projects