Our mission is to deliver the best in class GenAI services to meet our client challenges by blending the right people, technology, and processes into each project. With a top team of Phd's, Engineers, Evaluators and problem-solvers, we can provide high quality data sourcing, labelling, Evaluation, compliance and advisory services for companies shaping the next generation of AI.
Let's get started →Sigma co-founder and CEO Daniel Tapias researched the speech recognition and natural language processing fields for over 18 years. In the '90s, he made great strides in a groundbreaking project: applying automatic speech recognition to telephone services.
As AI innovations started to impact everyday life, it became clear that AI models could only be as good as the data they were trained on. From Daniel's perspective, data quality had to be more than just accuracy — it should also involve creating balanced datasets with adequate coverage and following consistent annotation rules.
In 2008, Daniel partnered with Nuria Gómez and founded Sigma AI to help companies source, prepare, and annotate better data for better AI.
Over the years, Sigma AI has grown into a diverse, highly-trained workforce of 25K+ annotators, linguists, project managers, and subject matter experts spanning 5 continents and covering 500+ languages and dialects.
4 out of 5 global tech titans among our long-term clients.
Headquartered in Madrid, with offices in London and Miami.
World leader in designing & operating secure facilities for annotating confidential data.
ISO 27001 and SOC-2 Type 2 certified, and 100% GDPR compliant.
Sigma's core values are infused into our teams, our relationship with clients, and the way we operate in the world at large.
Humans are at the heart of AI — and everything we do.
Complex problems motivate us to do our best work.
Our teams thrive when we understand each other's perspectives.
We are mindful of the impact of our actions. We hold ourselves accountable.
Diverse teams make a greater impact on the community and the planet.
Sigma Cognition is an AI consultancy and full-service proof-of-concept and solutions provider. For companies venturing into AI, Cognition extends in-house AI capabilities and supports teams in developing, training, and delivering custom AI solutions that solve the most complex and unique problems.
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Serial AI entrepreneur and researcher with over 30 years of experience. With a focus on speech and language technologies, Daniel pioneered some of the first real-world applications of speech recognition in telephone services in the early 1990s. Ph.D. in electrical engineering from Universidad Politécnica de Madrid.
Over 25 years of experience in business consulting for taxation, accounting, and M&A. Expert in domestic taxation in Spain, double taxation treaties, audit processes, and international accounting principles. Leads Sigma's internationalization efforts.
Deep background in speech recognition, IoT, and insurance telematics. Leads Sigma's product teams in creating the suite of machine learning and automation technologies that power high-quality annotation at massive scale. Ph.D. in IoT from Universidad Politécnica de Madrid.
Leads the multinational project management teams that deliver high-quality annotation to Sigma's clients. Expert at data-driven process optimization and problem-solving. Master's in Mathematics, executive MBA in Economics, postgraduate in Corporate Finance.
Over 25 years as a global executive in the US, Europe, and Japan. Former VP of Panasonic R&D for North America. Inventor or co-inventor of more than 100 patents and author of 100+ peer-reviewed articles and 3 books.
Over 25 years managing, scaling, and transforming companies across retail, health, and hospitality, implementing IoT, Big Data, and AI. Industrial Engineer with an MBA from Instituto de Empresa Madrid.
Strategic marketing leader with 20+ years of B2B marketing experience building high-growth, globally distributed teams for SaaS brands and professional services. Author of 15 books and a frequent international speaker on tech, marketing, and publishing.
Over 20 years working with corporations and startups on innovative technologies. Expert in telecommunication and new technology law, corporate law, data protection, IP rights, and international contracting. Law degree from Universidad Autónoma de Madrid.