Text Annotation and Labelling Services

Unleash the power of accurately annotated text at scale to supercharge your AI and ML models

Image Annotation and Labelling Services

From powering chatbots to refining machine translation algorithms, Natural Language Processing (NLP) models rely on accurately annotated text data. However, handling language complexities and large datasets remains a major challenge for AI companies globally.

HitechDigital, India’s top text annotation company, provides scalable, precise, and cost-effective text annotation services to boost your AI and ML models. Our expert annotators blend automated workflows with human intelligence to extract insights from vast, unstructured, and multilingual text data. Whether fine-tuning text classification, entity labeling, or comprehensive document annotation, our diverse techniques serve various applications and industries.

Our annotation processes enhance your machine learning systems’ comprehension of data by accurately interpreting responses, semantics, and sentiments. We also enrich datasets with metadata, simplifying visualization and enhancing decision-making.

Through specialized audit systems and rigorous validation techniques, we ensure the delivery of highly optimized training datasets that you can trust. Our text annotation processes integrate seamlessly into your existing workflows, maximizing efficiency and effectiveness.

Create high quality training datasets to power your AI and ML models

Discover More →

Our Text Annotation Services .

Tailored text annotation techniques to power your AI and ML models for diverse needs.

Text Classification & Categorization

Text Classification & Categorization

Assign predefined categories to text data for information retrieval, sentiment analysis, and organizing content for efficient processing and analysis.

Entity Recognition

Entity Recognition

Identify and classify named entities in text, link them to a knowledge base, and annotate for enhanced data analysis and information extraction.

Semantic Annotation

Semantic Annotation

Enrich text by linking its elements to concepts in a knowledge base, improving machine understanding of context and relationships within the content.

Linguistic Annotation

Linguistic Annotation

Tag textual data with language-specific information, such as syntax, semantics, and phonetics, to aid in natural language processing and analysis.

Intent Annotation

Linguistic Annotation

Determine intent from user’s text or speech for virtual assistants, chatbots, customer support systems, and interactive voice response (IVR) systems.

Phrase Chunking

Phrase Chunking

Segment text into syntactically correlated parts like nouns or verb phrases, to enhance language processing by structuring information for more effective analysis.

Success Stories.

More than 95% of our clients are recurring, a testament to the unwavering trust and satisfaction our services consistently deliver.

HitechDigital’s annotation and labeling solutions worked wonders for us. They not only provided high-quality text annotations, but also saved us time and resources.

Operations Head, Construction Technology Company, Germany

Thanks, HitechDigital, for best-in-class text annotation services moving through multiple stages of audit and review of labeled data.

Vice President, Operations, Californian Technology Company

Our Customers.

How we annotate data.

Understanding the process

Data Annotation and Labelling Process Click to view in PDF →

Applications of Text Annotation.

Diverse Use Cases of Text Annotation across Industries


  • Annotate data for voice commands
  • Develop in-car NLP systems
  • Deploy interactive interfaces


  • Detect fraudulent transactions
  • Monitor regulatory materials
  • Supervise customer interactions


  • Label documents for case preparation
  • Annotate facts, arguments, citations.
  • Discover case documents


  • Annotate academic text
  • Label learning material
  • Develop educational tools

Media & Entertainment

  • Annotate reviews and metadata
  • Identify trends and sentiments
  • Enhance content recommendation

Real Estate

  • Annotate listings and descriptions
  • Strengthen property evaluation
  • Support real estate market analysis

Text Annotation FAQs.

What types of text annotation services do you offer?

We offer a range of text annotation services, including entity recognition, text categorization, sentiment analysis, coreference resolution, and intent recognition, among others.

How is the quality of annotated data ensured?

We employ a combination of experienced annotators, rigorous quality control processes, and annotation guidelines to ensure high-quality labeled data. Regular audits and feedback loops are also used to maintain quality standards.

What languages do you support for text annotation?

We provide text annotation services for various languages, including but not limited to English, Spanish, French, German, Chinese, Japanese, and Arabic.

Can you annotate domain-specific or industry-specific texts?

Yes, we can annotate domain-specific texts. We customize annotation guidelines and train annotators specifically for industry-specific projects, ensuring accurate labeling of domain-specific terms and contexts.

What is the turnaround time for text annotation projects?

Turnaround time depends on the complexity and volume of the project. We work closely with clients to establish realistic timelines, ensuring timely delivery without compromising quality.

Is my data secure and confidential during the annotation process?

Yes, we take data security and confidentiality seriously. We have strict security measures in place, including secure data transfer protocols and confidentiality agreements with our annotators, to protect your data throughout the annotation process.

Can you handle large-scale text annotation projects?

Yes, we have the capacity to handle large-scale projects. Our scalable infrastructure and skilled workforce enable us to annotate large volumes of text data efficiently without compromising accuracy.

What formats can I receive the annotated data in?

We can deliver annotated data in various formats, including JSON, CSV, XML, or directly integrated into your database via APIs, based on your specific requirements.

Do you provide customized text annotation solutions for specific industries or applications?

Yes, we offer tailored text annotation solutions to meet the unique requirements of different industries, such as healthcare, finance, legal, and e-commerce, among others.

What annotation guidelines do you follow for text annotation?

We develop custom annotation guidelines based on project requirements, industry standards, and specific use cases to ensure consistency and accuracy in annotations.

Do you offer ongoing support and maintenance for annotated datasets?

Yes, we provide ongoing support and maintenance services, including dataset updates, re-annotation, and model retraining, to keep your AI and ML applications up-to-date and accurate.

Can you annotate text data from unconventional sources like social media or customer reviews?

Certainly, we have experience in annotating text data from diverse sources, including social media platforms, customer reviews, and other unconventional sources, enhancing the versatility of your AI models.

Do you offer quality assurance and validation processes for annotated data?

Yes, we have stringent quality assurance processes in place, including double-annotation, inter-annotator agreement checks, and continuous quality monitoring, to validate the accuracy and reliability of annotated data.

What is the cost structure for your text annotation services?

Our pricing depends on factors such as project complexity, annotation type, volume, and required turnaround time. We offer competitive and transparent pricing tailored to specific project needs.

Share your Challenges Email us!

Call us now!


Connect with us

Facebook Icon linkedin icon twitter icon