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 * Home
 * Services
   * Services Overview
   * Data Strategy
   * Data Sourcing
   * Data Annotation
   * Human in the Loop
 * Case Studies
   * Case Studies Overview
 * Resources
   * Blog
   * Open Datasets
   * Whitepapers
   * Why Sigma
 * Company
   * About Us
   * FAQs
   * Ethical AI
   * Security and Privacy
   * Partners
   * Careers

Menu
 * Home
 * Services
   * Services Overview
   * Data Strategy
   * Data Sourcing
   * Data Annotation
   * Human in the Loop
 * Case Studies
   * Case Studies Overview
 * Resources
   * Blog
   * Open Datasets
   * Whitepapers
   * Why Sigma
 * Company
   * About Us
   * FAQs
   * Ethical AI
   * Security and Privacy
   * Partners
   * Careers

CONTACT


YOUR EXPERIENCED PARTNER FOR HIGHEST QUALITY AI TRAINING DATA

Create smarter AI with better training data. We source and annotate highest
quality training data at scale with teams, processes and tech curated to fit
your project.

CONTACT


300+

Languages and dialects supported


4

Out of 5 global tech titans are long-term clients


99.99%

Accuracy available – 98% accuracy guaranteed


WE HELP SOLVE YOUR MOST COMPLEX DATA ANNOTATION CHALLENGES

Training data makes or breaks an AI. As AI application complexity continues to
grow, it takes experience to find the right approach to training data. We tap
into 30+ years of expertise in the data annotation space to cut through the
complexity and deliver training data with guaranteed accuracy, at scale.




HIGHEST-QUALITY DATA THROUGH THE RIGHT MIX OF PEOPLE AND TECHNOLOGY


DATA STRATEGY SERVICES

When you need support to find the best approach to training your AI, we offer
consulting across the data preparation process. We cut through the complexity,
assessing your unique needs and identifying the tools, processes and teams that
will deliver you the best data collection and annotation results. Your toughest
challenges are our favorite projects.
Data strategy services


DATA SOURCING

We collect, curate, and augment data with a focus on quality. Within the
dataset, we assure optimal balance and coverage to train your AI efficiently and
effectively while reducing bias. In edge cases where real-world data is too
expensive, time consuming or difficult to obtain, we augment the dataset with
synthetic data.
Data sourcing services


DATA ANNOTATION

Across speech and text, image and video, and any other kind of structured or
unstructured data, we provide highest quality annotations — for even the largest
and most complex datasets. We strive to find the ideal mix of automation,
machine-learning assisted annotation, and human-in-the-loop annotation for each
individual case. From teams to processes to tooling, every aspect of the
approach is curated to deliver your the best possible results, on deadline.
Data annotation services


HUMAN-IN-THE-LOOP

Data quality improves immensely with humans in the loop. We curate a team of
project managers, annotators and subject matter experts for each individual
project. Continuous feedback loops between project managers, annotators and the
client throughout serve to catch inconsistencies early, iterate on guidelines
and processes, and greatly improve quality and efficiency.


Human-in-the-Loop services


HOW SIGMA DELIVERS


GUARANTEED ACCURACY

Through our experience, proven processes, professional annotators and quality
assurance, we guarantee 98% accuracy - 99.99% if needed.


PROBLEM SOLVERS

We thrive on complexity and love a challenge. Come to us with your toughest
annotation projects and we’ll help you find the right approach.


ANNOTATION EXCELLENCE

We vet and train our own diverse workforce of 25,000+ annotators, linguists,
project managers and subject matter experts across 5 continents.


SECURITY COMMITMENT

World leaders in secure facilities design, implementation and operation, we are
ISO 27001 and SOC-2 certified and 100% GDPR compliant.


CUSTOMERS FIRST

We custom-fit our processes to fit your unique project - from curated annotator
teams down to our data labeling and process automation tools.


QUALITY AT SCALE

Covering 300+ languages and dialects, our annotators and linguists analyze 200+
million video frames and over a million words a day.


WANT MORE REASONS FOR CHOOSING SIGMA? LEARN MORE


WHY INCLUSION HELPS BUILD BETTER AI

Human-in-the-loop annotation creates training data with nuance and context that
only people can provide. But representation within annotator teams matters —
otherwise biases can creep into the data. This is why we personally vet, hire
and train our growing workforce of 25,000+ annotators, linguists and subject
matter experts with a focus on inclusion and suitability for each unique
project.

Working from 100+ countries across 5 continents, we employ over 70% women,
collaborate with the Juan XXIII Foundation to engage employees with
disabilities, and provide living-wage, remote jobs to annotators in low-income
and rural areas. We’re committed to creating a human-centric culture that
fosters respect, dignity and meaningful opportunities.

Read more about our approach to Ethical AI


CASE STUDIES


LAUNCHING AND SCALING VIDEO TRANSCRIPTION IN 24 LANGUAGES AND DIALECTS

Automated transcription is becoming more and more prevalent. It’s now a standard
component in many audio and video creator tools,…
Read More


DESIGNING SECURE FACILITIES FOR SENSITIVE DATA ANNOTATION

AI and machine learning algorithms are built into an increasing number of
products — all of which need training data…
Read More


PIXEL-PERFECT ANNOTATION FOR RECOGNIZING PRODUCTS IN IMAGES

Recognizing objects is a complex process. As humans, we can rely on years of
casual practice and implicit understanding when…
Read More


LET’S WORK TOGETHER TO BUILD SMARTER AI

Whether you need help sourcing and annotating training data at scale, or you
need a full-fledged annotation strategy to serve your AI training needs, we can
help. Get in touch for more information or to set up your proof-of-concept.

CONTACT



Sigma.AI is a global training data collection, preparation and annotation
services company. For companies building the next generation of AI, we provide
highest quality training data at scale, with a human touch.

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SERVICES

Services Overview

Speech & Text

Data Annotation

Image & Video

Human in the Loop

RESOURCES

Blog

Open Datasets

Whitepapers

Why Sigma

Case Studies

COMPANY

About Us

FAQs

Ethical AI

Security & Privacy

Partners

Careers

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