About

Solitek combines an excellent understanding of the diversity of the solid form landscape exhibited by small APIs with the experience and the practical know-how to add value to new chemical entities, thus increasing their chances of making it all the way to the market.

Solitek combines an excellent understanding of the diversity of the solid form landscape exhibited by small APIs with the experience and the practical know-how to add value to new chemical entities, thus increasing their chances of making it all the way to the market.
We focus solely on what you need here and now, to help you move to the next stage in your development strategy. We offer stage appropriate development for each programme, focusing on problem solving to help our clients reduce the risk of failure during the later development stages and maximising the returns from potential in-licensing partners.

Solitek was launched in 2021 and is located in the Parc Cientific of Barcelona, a major scientific hub in the heart of Barcelona, Spain. We are a small, agile team, we promote collaboration over competition, and we believe in the synergy of two teams working together towards a common goal. Our studies carry the inherent flexibility associated to early development programmes. We offer the best value for money available anywhere in the world.

The founders have a combined experience of over 50 years in the pharmaceutical industry, working in the discovery, early development and manufacturing phases of small molecule active ingredients. This includes a combined experience of over 40 years in the world of solid state research and crystallization development, leading some of the largest teams in Europe dedicated to the provision of solid state services, and being involved in over a thousand development programs, many of which have now reached market status.

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Operations Director & Co-founder

Víctor holds a PhD in Organic Chemistry from the University of Seville and has over 20 years of experience across medicinal chemistry, solid-state science and pharmaceutical development. Before co-founding Solitek, he led large solid-state teams supporting biotech and pharmaceutical companies in the development of small molecule APIs. His work focuses on helping clients reduce development risk, strengthen decision-making and move projects forward with clear, science-driven strategies.
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Víctor M. Díaz Pérez

Scientific Director & Co-founder

Stephen holds a PhD from the University of Cambridge and began his career in asymmetric organic synthesis before moving into solid-state development. He has broad experience across the full product development pathway, from discovery to manufacturing, with particular expertise in crystallization process development, polymorphism and particle size control. As Scientific Director, he helps ensure that Solitek’s work is grounded in deep technical understanding and practical development experience.
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Stephen Winter

Lead Scientist

Rosa María holds a master’s degree in Solid Form in the Chemical Industry from the Autonomous University of Barcelona. She has more than 10 years of experience in solid-state science, working with leading pharmaceutical companies and specialist solid-state providers in both the UK and Spain. Her expertise includes physicochemical characterization, compound selection support and crystallization process development across early and late-stage pharmaceutical projects.
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Rosa María Espinosa Ferrer

Technical Leader

Joan holds a master’s degree in Solid Form in the Chemical Industry from the Autonomous University of Barcelona and has more than 8 years of experience in pharmaceutical solid-state services. His expertise includes polymorphism studies, cocrystal and salt formation, and API physicochemical characterization. At Solitek, he supports clients by generating clear, reliable data to guide solid form decisions during small molecule development.
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Joan Benet Congost

Technical Leader

Raquel holds a PhD in Organic Chemistry from the Autonomous University of Barcelona and brings more than 15 years of experience across the pharmaceutical and chemical industries. Her expertise covers solid form selection, structural elucidation and physicochemical characterization, supporting the development of robust and well-understood small molecule APIs.
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Raquel Enrech López

Delivering Solid Form Solutions with Decades of Expertise – Your Partner for Solid State and Preclinical Formulation Services.

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With funding from Empresa Nacional de Innovación S.A. (Enisa). Ministry of Industry, Commerce and Tourism.
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Solid Technologies has participated in the ICEX-Next Export Initiation Program, and has had the support of ICEX, as well as the financing of European ERDF Funds, having contributed to the economic growth of this company, its region and Spain as a whole.

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