Data Annotation Services
Data Annotation Services for AI and Machine Learning
Wolfestone Group provides professional data annotation services to help organizations train, evaluate, and improve artificial intelligence and machine learning models. Built for enterprise environments, our services focus on accuracy, consistency, and governance, ensuring annotated data is reliable, well-structured, and fit for purpose.
We support data annotation across text, multilingual content, audio, and speech datasets, applying clear annotation guidelines and structured quality assurance to deliver high-quality training data.
Designed to scale, our data annotation services support high-volume datasets and ongoing annotation programs, with secure handling of data, dedicated project management, and ISO-aligned quality and information security processes.
Contact us today for a free quote or consultation.
Trusted by Global Organizations & Brands
Data Annotation Services Built for Enterprise AI Programs
Wolfestone Group delivers structured, high-quality data annotation services designed to support the training, validation, and continuous improvement of AI and machine learning models.
Multilingual and Linguistic Data Annotation
We specialize in text and language-focused data annotation, including multilingual datasets where linguistic accuracy and cultural nuance are critical.
Native-language annotators apply consistent guidelines to label, classify, and structure data used in natural language processing (NLP), conversational AI, search, and content moderation models.
Audio, Speech, and Language Data Annotation
Our services extend to audio and speech data annotation, supporting use cases such as speech recognition, voice-enabled systems, and language understanding models.
Annotation is carried out using defined schemas and quality controls to ensure reliability across accents, languages, and regional variations.
Scalable Delivery and Ongoing Annotation Programs
Our data annotation services are designed to support high-volume datasets and long-term annotation programs, with centralized coordination, dedicated project management, and the ability to scale resources as requirements evolve.
This enables organizations to maintain consistency and control as AI models are refined over time.
Contact us today for a free quote or consultation.
Data Annotation FAQs
Wolfestone Group: Your Global Language Services Partner
220+
Language Pairs
24/7
Project Support
99.2%
Customer Satisfaction
Wolfestone Group is a global family of specialist language service providers delivering translation, localization, interpreting, transcription, multimedia, and other language solutions to organizations worldwide.
With teams and offices across the globe, we combine native-tongue, qualified linguists, advanced technology and dedicated account management to help clients communicate confidently across every market and culture.
Specialist expertise across every sector: Work with native-speaking linguists who understand your industry and compliance requirements, from finance and law to life sciences, technology, and manufacturing.
Dedicated project and account management: Every client is supported by a personal account team, ensuring fast responses, transparent communication, and continuity from project to project.
Tailored, scalable solutions: From technical translation to multimedia localization, we adapt our workflows to your systems, deadlines, and budget.
Uncompromising quality and data security: Certified to ISO 17100 (Translation Services), ISO 9001 (Quality Management), and ISO 27001 (Information Security), we guarantee high-quality services and confidentiality across every project.
Built for enterprise and global growth: With AI-enhanced tools, Translation Memory, and an integrated client portal (included at no additional fee), Wolfestone Group delivers efficient solutions for global enterprises.