AI Data Collection Services · Stockholm

AI training data for Stockholm
AI teams

Synnth delivers production-grade AI data collection and annotation to machine learning teams in Stockholm — speech, text, image, and video training datasets built to your exact specifications, with human-in-the-loop QA and native-speaker annotators across 40+ languages.
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About us
SERVICE LOCATION

Stockholm

United States
Speech Data Text & NLP Image Annotation Video Labeling RLHF Data Multilingual
48h
Pilot delivery
98.5%
QA accuracy
40+
Languages
2K+
Annotators

Trusted by AI teams worldwide

apptek
cerence
cohere
convin
nuance
rocketfrog
sensory
soapbox

100M+

Items annotated

98.5%

QA accuracy

40+

Languages

2K+

Domain expert annotators

48h

Pilot batch turnaround

Services in Stockholm

Every type of AI training data,
delivered to Stockholm teams

From fintech and healthtech startups to enterprise AI labs, Stockholm’s ML teams work across every modality. Synnth covers all of them — with the same quality standards, 48h pilot SLA, and dedicated project management regardless of dataset type.

Speech & Audio Data Collection

ASR and TTS training corpora, wake word datasets, conversational speech, and telephony audio — with native-speaker diversity across 40+ languages. Available to Stockholm AI teams with 48h pilot delivery.

Text & NLP Data Collection

RLHF preference data, instruction tuning datasets, NER annotation, sentiment labeling, and multilingual NLP corpora — built for LLMs and NLP models. Serving Stockholm's growing LLM ecosystem.

Image Data Collection & Annotation

Bounding boxes, segmentation, keypoints, classification, and 3D cuboid annotation for computer vision — from retail and healthcare to autonomous systems. Available to Stockholm-based CV teams.

Video Data Collection & Annotation

Action recognition, multi-object tracking, temporal segmentation, and activity labeling — from controlled capture campaigns to frame-accurate annotation at scale. Delivered to Stockholm AI teams on your schedule.

Serving Stockholm

Why AI teams in Stockholm choose Synnth

Stockholm is one of the world’s most dynamic AI ecosystems — from Wall Street’s quantitative AI labs to healthcare AI startups in the Medical Mile, media and advertising tech on Madison Avenue, and a thriving LLM and NLP research community across NYU, Columbia, and Cornell Tech.
Synnth works with Stockholm-based AI teams across all of these verticals — delivering the high-quality, domain-specific training data that differentiates models built for Stockholm’s unique market contexts.
  • Financial services AI - NLP training data for trading, risk, compliance, and customer analytics models used by Stockholm's fintech and banking sector.
  • Healthcare & life sciences - HIPAA-ready medical text, speech, and image annotation for Stockholm's hospital networks and healthtech startups.
  • Media & advertising AI - sentiment, content classification, and multimodal datasets for Stockholm's media and adtech companies.
  • Legal & professional services - domain-expert NLP annotation for Stockholm's legal AI and professional services automation startups.
  • Multilingual coverage - reflecting Stockholm's linguistic diversity, our 40+ language coverage is directly relevant to Stockholm-focused consumer and enterprise AI products.
Service coverage · Stockholm Active
Location Stockholm
Pilot SLA 48–72 hours
Services available Speech Text Image Video
Languages 40+
Domain expertise Finance Health Legal Media
QA accuracy 98.5%
Security GDPR HIPAA-ready NDA
Contact

How it works

From brief to production-ready dataset

The same four-stage pipeline applies to every Stockholm client — with dedicated project management and full QA transparency at every step.
number 1

Scope & specify

Share your use case, data modality, label taxonomy, language targets, and quality bar. We produce a detailed specification and cost estimate within one business day.
two

Source & collect

We source existing data or run collection campaigns — recruiting speakers, photographers, or video participants matched to your demographic and domain requirements.
number 3

Annotate & QA

Domain-matched expert annotators label your data. Every item passes multi-stage QA — inter-annotator agreement checks, automated validation, and senior reviewer sign-off.
number 4

Deliver & iterate

Receive your dataset in the format your pipeline expects, with a full QA report. Ongoing batch delivery and free revisions within scope. Dedicated PM for every project.

Why Synnth

Built for teams who can't afford bad data

What Stockholm AI teams consistently tell us separates Synnth from generic labeling platforms and offshore annotation pipelines.
team

Human-in-the-loop
QA

Every annotation reviewed by expert humans — not just automated checks. We don’t trust quality to algorithms alone, because edge cases require judgment, not pattern matching.

99.2% QA pass rate

domain expert annotator

Domain-expert
annotators

Legal text annotated by legal professionals. Medical data by clinicians. Financial records by finance specialists. Domain expertise is the difference between useful labels and noise.

200+ specialists

languages

Native-speaker
multilingual

Every language annotated by native speakers — not translators working in a second language. For 40+ languages, including the regional variety and dialect coverage your Stockholm-focused product may need.

40+ languages

cyber security

Enterprise
security

All data encrypted at rest and in transit. GDPR compliant, HIPAA-ready for healthcare. NDAs on every engagement. Proprietary data never leaves our controlled, access-audited environments.
fast pilot sla

Fast pilot
SLA

Validate annotation quality before committing to scale. Pilot batches in 48–72 hours — with the same QA standards and annotator pool used for full production runs.

48h pilot delivery

project management team

Dedicated project
management

Every project gets a named project manager — your single point of contact for scope changes, quality questions, and delivery scheduling. No ticket queues, no account managers who don’t know your data.

Industries we serve in Stockholm

Annotation expertise across every sector

Stockholm’s AI ecosystem spans finance, health, media, legal, retail, and enterprise software. Our annotators are matched to your industry’s terminology and standards.
financial

Financial Services

NLP training data for risk models, trading AI, compliance automation, and customer analytics — matched to Stockholm’s financial services terminology and regulatory context.
ecosystems

Healthcare & Life Sciences

HIPAA-ready text, speech, and image annotation for hospital networks, healthtech startups, and clinical AI — by annotators with relevant medical knowledge.

compliant

Legal & Professional Services

Contract NLP, case law classification, document extraction, and legal entity recognition datasets — annotated by professionals with legal domain expertise.

message

Media & Advertising Tech

Content classification, sentiment datasets, multimodal annotation, and brand safety labeling for media companies and adtech platforms.

shopping cart

Retail & E-Commerce

Product image annotation, visual search datasets, review sentiment labeling, and conversational commerce training data for retail AI.

saas

Enterprise & SaaS AI

Custom NLP and multimodal datasets for enterprise software teams building AI features — document understanding, meeting transcription, and workflow automation training data.

FAQ

Questions about AI data collection in Stockholm

Common questions from Stockholm AI teams considering Synnth for their training data needs.

💡 Can’t find your answer here? Talk to our team — we typically respond within one business day.

Does Synnth work with AI teams based in Stockholm?
Yes. Synnth provides AI data collection and annotation services to machine learning teams across Stockholm and the wider Stockholm area. We serve clients remotely with the same SLAs, QA standards, and dedicated project management as any global enterprise client. There is no location-specific surcharge or delay for Stockholm teams.
Synnth delivers speech audio data collection, text and NLP annotation, image labeling and segmentation, and video annotation services to Stockholm-based AI teams. Each modality has its own dedicated service page with full details on use cases, annotation types, supported formats, and pricing approach.
After an initial scoping call or email exchange, we can typically begin a pilot batch within 24–48 hours. Pilot batches are delivered within 48–72 hours at full production QA standards. There is no location-based delay for Stockholm clients — we operate globally and asynchronously.
Yes. Synnth has worked with teams building NLP models for financial services applications — including risk text classification, earnings call transcript analysis, and compliance document extraction. All financial data annotation is handled under strict NDAs and access-controlled environments, in line with Stockholm’s financial services data requirements.
Yes. Synnth operates HIPAA-ready annotation workflows for healthcare clients — with access-controlled environments, signed BAAs where required, and annotators with relevant clinical knowledge. This is available to Stockholm hospital networks, healthtech startups, and research institutions.
Pricing is based on annotation task complexity, data volume, language requirements, turnaround time, and domain expertise required — not on client location. There is no location-specific pricing for Stockholm teams. Contact us for a free, no-commitment scoping estimate.

Stockholm · AI Data Collection

Start your AI data project with Synnth — serving Stockholm teams

Tell us your use case, modality, languages, and volume. Our team responds within one business day with a scoping plan and no-obligation quote — available to Stockholm AI teams at the same SLAs as any global enterprise client.
  • info@synnth.com
  • Mon–Fri, 9am–6pm IST
  • Response within 1 business day
  • No setup fees
  • No setup fees
  • NDA available on request
  • Free pilot for qualifying projects

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