AI Training Data and Annotation from South Africa — 11 Languages, Top 5 Globally
Corpshore is ranked Top 5 AI outsourcing globally by Outsource Accelerator. We provide human-annotated training data for LLMs, computer vision, speech AI and RLHF — including rare South African language datasets.
The only provider with native-speaker annotators in all 11 official South African languages.
What We Annotate
Full-service annotation across every data modality. All annotation is performed by trained human annotators and verified by a senior QA layer.
Text and NLP
- Sentiment analysis
- Named entity recognition (NER)
- Intent classification
- Relation extraction
- Text summarisation
- Question and answer pairs
Image and Video
- Bounding box annotation
- Semantic segmentation
- Object detection
- Keypoint annotation
- Video frame labelling
- Scene classification
Audio and Speech
- Speech transcription (11 SA languages)
- Speaker diarisation
- Emotion tagging
- Phoneme labelling
- Audio classification
- ASR evaluation
RLHF and Evaluation
- Response ranking and comparison
- Preference annotation
- Safety and harm annotation
- Factuality scoring
- Instruction following evaluation
- Red-teaming and adversarial testing
South African Language Annotation — A Unique Advantage
South Africa's 11 official languages are severely under-represented in global AI training corpora. Corpshore is one of the world's only annotation providers with native-speaker capacity across all of them.
Languages like Zulu, Xhosa and Sesotho have tens of millions of speakers but minimal digital training data. AI models built with Corpshore annotations perform significantly better on Southern African users — a market that has been historically ignored by NLP providers.
Our Quality and Compliance Framework
Human-Only Annotation
No AI pre-labelling passed off as human annotation. Every label is created by a trained annotator and independently reviewed.
Two-Pass QA
Each annotation batch goes through a primary annotator, a QA reviewer and a final spot-check by a senior linguist or domain expert.
POPIA and GDPR
All client data is processed under a signed data processing agreement. Role-based access, encrypted storage and audit logs as standard.
Scalable Teams
Start with a small pilot batch. Scale to hundreds of annotators with consistent quality controls as your data needs grow.
Secure Data Handling
Data can remain in South Africa or be processed under EU-equivalent protections for European AI clients with data residency requirements.
Domain Expertise
Specialist annotators across legal, medical, financial, agricultural and general-purpose domains. No generic crowd-workers for sensitive data.
AI Annotation South Africa — FAQ
What AI data annotation services does Corpshore offer?
Corpshore provides text and NLP annotation, image and video labelling, audio transcription and annotation, structured data classification, RLHF (Reinforcement Learning from Human Feedback) and sentiment analysis. All annotation is performed by human annotators, quality-checked by senior reviewers.
Can Corpshore annotate in South African languages?
Yes. Corpshore has native-speaker annotators for all 11 official South African languages: Zulu, Xhosa, Afrikaans, Sepedi (Northern Sotho), Setswana, Sesotho, Tshivenda, Siswati, isiNdebele, Southern Ndebele and English. This makes Corpshore one of the world's only providers of training data in under-resourced African languages.
Is Corpshore's AI annotation service POPIA compliant?
Yes. All data handling follows POPIA (Act 4 of 2013) and GDPR-equivalent standards. Data is processed under strict data processing agreements (DPAs), with role-based access controls, audit logs and optional in-region processing.
Why is South Africa a competitive location for AI annotation?
South Africa combines a large graduate talent pool, native English fluency, competitive labour costs and unique access to 11 official languages that are underrepresented in most global AI training datasets. Corpshore is ranked Top 5 AI outsourcing globally by Outsource Accelerator.
Build Better AI with South African Training Data
Share your annotation requirements. We reply within one business day with a sample plan and rate card.