NLP Annotation Services

NLP annotation services for language data your models can learn from.

NLP annotation services covering entities, sentiment, intent, relationships and classification — labeled by trained linguists and domain SMEs across 25+ languages, checked against a gold standard.

Graveiens labelsentitiesforsentimentandintent
25+
Languages
700+
Linguists & SMEs
98%
Post-QA accuracy
4-stage
QA workflow
Why it matters

NLP annotation services that capture nuance

Language is full of edge cases — sarcasm, nested entities, code-switching — that generic pipelines miss. Our NLP annotation services put trained linguists and domain SMEs on your text, labeling entities, sentiment, intent and relationships to your taxonomy with measured agreement. The same team supports broader data annotation services and conversational AI training data.

Start an NLP labeling pilot
Graveiens labelsentitiesforsentimentandintent
What we label

NLP annotation services across the full range of tasks

From named entities to nuanced sentiment, we produce the labeled text that trains and evaluates language models.

Named-Entity Recognition

  • People, places & orgs
  • Domain entities
  • Nested & overlapping spans
  • Custom taxonomies

Sentiment & Intent

  • Polarity & emotion
  • Aspect-based sentiment
  • Intent classification
  • Sarcasm & nuance

Classification & Tagging

  • Topic & category labels
  • Multi-label tagging
  • Toxicity & safety
  • Content routing

Summarization & Q&A

  • Extractive & abstractive
  • Question-answer pairs
  • Instruction data
  • Reference answers

Relationships

  • Relation extraction
  • Coreference
  • Dependency labeling
  • Event extraction

Multilingual

  • 25+ languages
  • Native review
  • Code-switching
  • Cross-lingual parity
In practice

How our NLP annotation services work

Our NLP annotation services turn raw text into structured training data: named-entity recognition, intent and sentiment, classification, span and relationship labeling, and summarization or Q&A pairs. Linguists and domain SMEs label to your guidelines in 25+ languages, and a four-stage QA workflow with inter-annotator agreement keeps tags consistent as volumes scale. Because the same bench also delivers data annotation services, conversational AI training data and LLM fine-tuning, you can move from labeled text to a tuned, evaluated model with one partner.

Start an NLP pilot
Graveiens labelsentitiesforsentimentandintent
Why Graveiens

Why teams choose our NLP annotation services

Compliance-first delivery and a pay-on-approval model that de-risks every engagement.

SME judgment

Domain experts for the subtle calls.

Deep language coverage

Native linguists in 25+ languages.

Measured quality

Gold sets and agreement scoring.

Pay on approval

Invoiced only for approved deliverables.

FAQ

Questions, answered

What NLP annotation services do you offer?
Named-entity recognition, sentiment and intent, classification and tagging, summarization and Q&A, and relationship extraction — labeled by linguists and SMEs to your schema across 25+ languages.
Can you handle custom label schemas?
Yes — we work to your taxonomy for entities, sentiment, intents and relations, or help you design one.
Do you support low-resource languages?
We cover 25+ languages with strong Indic depth and native-speaker review; ask us about a specific language.
Can you build instruction and Q&A data?
Yes — instruction-response and question-answer pairs for training and evaluation.
How do we start?
A short paid pilot against your schema and quality bar.

Related services

Get NLP data labeled by experts

Send us a sample task. You only pay for deliverables you approve.

Book a pilot