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Data Annotation Services

Boost your AI with human-guided, scalable data annotation and labelling.

Data annotation & labelling

Get your machine learning models firing on all cylinders with Wolfestone's data annotation services.

Our accurate, multilingual human labelling ensures exceptional accuracy and efficiency, empowering your AI to make sharper decisions, faster.

Get a free quote today or book a consultation below.

Get a free quote for AI data annotation

  • Unmatched security: We take data privacy seriously. Industry-leading, ISO 27001-certified practices keep your information safe.
  • Scalable solutions: Our experienced project managers adapt to your project size, ensuring smooth growth, efficient allocation and timely delivery.
  • Exceptional accuracy: Our expert-led labelling guarantees the highest level of data quality.
  • Multilingual expertise: Through our linguists, we can annotate data in any language.

Our process: Transforming raw data into smart AI

From project scoping to labelling, we employ a proven methodology to ensure your multilingual data fuels your machine learning.

1. Scoping & preparation:

We start by working with you to understand your project goals and the specific use case for your model. Once the project scope is defined, we securely acquire your raw data and ensure it's formatted for efficient annotation.

2. Data labelling:

Our team of labellers leverages specialist tools to accurately label your data according to the agreed-upon scheme. This might involve identifying images, transcribing audio recordings or classifying sentiment in text.

3. Project completion:

Upon successful completion, your data is delivered securely in a format compatible with your AI development tools. We provide clear documentation and are happy to answer any questions you may have about the labelled data.

How it works

Data annotation is the process of adding labels or tags to raw data to make it meaningful and understandable for machine learning algorithms.

The process is the bridge between your raw data and the ability of your model to use it effectively and intelligently.

Text annotation

Need sentiment analysis for customer reviews, topic labelling for articles or entity recognition for documents? We'll ensure your AI grasps the complexities of human language - in any language.

Image & video annotation

Through object detection and image segmentation, we transform raw visuals, images and videos into valuable data for your AI to interpret the world with precision.

Audio annotation

Our expertise extends to audio annotation, including tasks like multilingual speech-to-text transcription, speaker identification and sentiment analysis for voice calls.

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Contact us today for a free quote or consultation.

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Wolfestone: Your source for trusted data annotation


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Founded in 2006, Wolfestone offers a comprehensive range of solutions in over 220 language pairs, covering translation, localization, voice overs, subtitles, proofreading, multilingual content creation and more.

With a mission to enable global trade and communication, we have served organisation from various markets and sectors, from life sciences and healthcare to manufacturing and legal.

Global reach: Take your business to any market, big or small. Our language services employ linguists who specialise in dozens of subjects, including medical, legal, marketing, software and eLearning.

Tailored language solutions: We customise quotes for your specific needs and budget. Wolfestone is proud to collaborate with both major corporate clients and small businesses alike.

Rapid and responsive: We are proud of the speed of service we can offer to customers. Contact us and you will hear back within hours. You will then meet your dedicated account manager or specialist on your project, with our rapid translation being delivered within 24 hours.

Highest standards of accuracy: We are committed to providing the most accurate translation and localization possible. Our rigorous editing and quality control process involves multiple rounds of human and AI checks to ensure your content is suitable for multiple metrics, including meaning, tone, cultural sensitivity and more.

Backed by security and technology: We are one of the few translation agencies in our sector to have our commitment to data security and translation management internationally recognised by the prestigious ISO 9001:2015, ISO 17100:2015, and ISO 27001:2013 standards.