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Localization & Multilingual

Global human intelligence for AI.

Build multilingual AI with native speakers & real cultural context.

HumanSignal helps AI teams collect, annotate, and validate multilingual data across global languages and markets. From frontier model training to product localization, we recruit the right people, manage the operations, and deliver production-ready datasets.

Localization & Multilingual Data Services Consultation

91
Countries
Nigeria
Global annotators
Commuter reading her phone on a platform at Tokyo Station
Who does the work

Native speakers in the right places

Successful localization depends on people who understand language in context. We recruit native speakers by language, region, dialect, profession, age, and other demographic requirements to match your project.

Whether you need conversational speech from Mexico, healthcare professionals in Germany, or multilingual evaluators across Southeast Asia, we build teams around your requirements.

  • Language
  • Region
  • Dialect
  • Profession
  • Age
  • Education
  • Demographics
Conversational speech Mexico
Healthcare professionals Germany
Multilingual evaluators Southeast Asia
What we deliver

Localization capabilities

The full lifecycle of multilingual data: recruiting, collection, annotation, evaluation, and validation. Expertly managed by our data scientists and project managers against your taxonomy and your quality bar.

Language data collection

Capture speech, text, images, video, and multimodal data from native speakers worldwide.

Translation

Translate prompts, datasets, product content, documentation, and evaluation materials.

Transcription

Produce accurate transcripts for conversational speech, interviews, meetings, customer support, and domain-specific audio.

Annotation

Label multilingual text, audio, image, and video using customer-defined taxonomies and quality standards.

Prompt & response evaluation

Evaluate multilingual model outputs for correctness, helpfulness, safety, tone, and cultural appropriateness.

Preference data

Collect comparative rankings and human judgments for RLHF, reward modeling, and benchmarking.

Linguistic validation

Review translations for accuracy, terminology, fluency, and regulatory requirements before release.

Cultural adaptation

Adapt prompts, creative assets, interfaces, and evaluation tasks for local markets while preserving intent.

Domain experts

Recruit clinicians, engineers, educators, financial professionals, legal reviewers, and other specialists alongside native speakers.

Where our people are

Languages and regions

Our global contributor network spans major world languages as well as lower-resource languages and regional dialects. We build custom recruiting pipelines when projects require specialized populations or hard-to-find language expertise.

TanzaniaCanadaUnited StatesKazakhstanUzbekistanIndonesiaArgentinaChileKenyaDominican RepublicNorwaySouth AfricaMexicoBrazilPeruColombiaPanamaCosta RicaNicaraguaHondurasEl SalvadorGuatemalaFranceEcuadorJamaicaZimbabweBotswanaNigeriaCameroonGhanaIvory CoastZambiaMozambiqueIsraelTunisiaAlgeriaJordanUnited Arab EmiratesThailandVietnamSouth KoreaMongoliaIndiaBangladeshNepalPakistanSwedenPolandAustriaHungaryMoldovaRomaniaGermanyBulgariaGreeceTurkeyCroatiaSwitzerlandNetherlandsPortugalSpainIrelandNew ZealandAustraliaSri LankaChinaItalyDenmarkUnited KingdomIcelandGeorgiaPhilippinesMalaysiaSloveniaFinlandSlovakiaCzech RepublicJapanSaudi ArabiaCyprusMoroccoEgyptEthiopiaUgandaRwandaBosnia and HerzegovinaNorth MacedoniaSerbiaTrinidad and TobagoSingaporeHong Kong
Where it fits

Built for modern AI workflows

Localization today extends far beyond translation. AI systems need multilingual data throughout development — from training to evaluation to production monitoring.

We support projects including
  • Foundation model training
  • RLHF and preference collection
  • Prompt evaluation
  • Benchmark creation
  • Agent evaluation
  • Search relevance
  • Speech recognition
  • Text-to-speech
  • Computer vision
  • OCR validation
  • Multimodal datasets
  • Product localization
  • Safety and policy evaluation
How we work

From scoping call to production dataset

  1. 01

    Define the project

    We work with your team to understand languages, target populations, data specifications, annotation guidelines, quality requirements, and delivery format.

  2. 02

    Recruit contributors

    We source qualified native speakers and domain experts who match your geographic, demographic, and professional requirements.

  3. 03

    Collect and annotate

    Our managed teams capture data, perform annotation, and execute evaluation workflows using customer-defined instructions and quality controls.

  4. 04

    Validate quality

    Every project includes structured QA with reviewer calibration, spot checks, consensus workflows, and measurable acceptance criteria.

  5. 05

    Deliver production-ready data

    Receive validated datasets, annotations, documentation, and ongoing operational support as your program scales.

Why HumanSignal

The expertise for demanding data sets.

Built for AI

Every workflow is designed around AI data creation, annotation, evaluation, and benchmarking.

Human expertise

Recruit native speakers and subject matter experts with cultural expertise.

Flexible operations

Support everything from focused pilot studies to global, multi-country collection programs.

Quality first

Structured review processes, measurable quality standards, and transparent reporting throughout every project.

Custom by default

Every engagement is tailored to your languages, markets, taxonomy, security requirements, and delivery needs.

FAQ

Frequently asked questions

Which languages do you support?

We regularly support projects across major global languages and can recruit speakers for many lower-resource languages and regional dialects.

Can you recruit specialized participants?

Yes. We recruit contributors by profession, education, demographics, geography, and other project-specific criteria.

Can you work inside our security environment?

Yes. We regularly support secure collection and annotation workflows that meet customer security requirements.

Do you only provide annotation?

No. We support the full lifecycle, including participant recruitment, data collection, translation, annotation, evaluation, quality assurance, and ongoing operations.

Can projects scale over time?

Yes. Many customers begin with a pilot and expand into long-running collection and evaluation programs.

Ready to build multilingual AI?

Whether you're collecting new datasets, evaluating frontier models, or launching products in new markets, HumanSignal provides the people and operational expertise to deliver high-quality multilingual data.

Localization & Multilingual Data Services Consultation