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Lek Pharmaceuticals, a Sandoz company, is a pioneer in the pharmaceutical industry with a rich history dating back to 1946. Headquartered in Ljubljana, Slovenia, Lek is a global development and manufacturing center for Sandoz, specializing in Active Pharmaceutical Ingredients (APIs), finished dosage forms of generic medicines, and complex biosimilars. Lek's commitment to innovation, quality, and accessibility makes it a crucial contributor to Sandoz's mission of providing patients worldwide with affordable, high-quality medicines. Their operations span research and development, vertically integrated manufacturing, and supply to global markets.
The Ljubljana headquarters houses key corporate functions, research and development laboratories, and manufacturing facilities. It serves as the central node for Lek's operations within Sandoz and its strategic development in generics and biosimilars.
The headquarters and associated sites feature state-of-the-art R&D centers, advanced pharmaceutical production units, and quality control laboratories. The BioCampus Mengeš is particularly notable for its cutting-edge biosimilar development and manufacturing capabilities.
The work culture at Lek emphasizes scientific excellence, innovation, quality, and collaboration. As part of Sandoz, employees benefit from a dynamic international environment that integrates Slovenian pharmaceutical expertise with global best practices, fostering continuous learning and impactful contributions to healthcare.
Lek's headquarters and its Slovenian operations are highly significant as a major R&D and manufacturing hub for Sandoz globally. It represents a long-standing tradition of pharmaceutical innovation in Slovenia and is a key employer and contributor to the national economy.
Lek Pharmaceuticals, as a Sandoz company, plays a crucial role in Sandoz's global operations. Its development centers and manufacturing sites in Slovenia are integral to Sandoz's worldwide production of active pharmaceutical ingredients (APIs), generic medicines, and biosimilars. These products are distributed across numerous countries, supporting Sandoz's mission to provide patient access to high-quality, affordable medicines globally. Lek's expertise in areas like biosimilar development and vertically integrated manufacturing contributes significantly to Sandoz's competitive edge in international markets, reaching patients in over 100 countries.
Verovškova ulica 57
Ljubljana
N/A
Slovenia
Address: Kolodvorska cesta 27, 1234 Mengeš, Slovenia
Serves as a global center of excellence for biosimilar development and production within the Sandoz network.
Address: Trimlini 2D, 9220 Lendava, Slovenia
Key API production site ensuring vertical integration and supply chain security for Sandoz globally. Expanding into biologics manufacturing.
Address: Perzonali 2, 2391 Prevalje, Slovenia
Important site for the global supply of antibiotics, contributing to Sandoz's portfolio in treating bacterial infections.
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As of April 2025, Lek, a Sandoz company' leadership includes:
Lek, a Sandoz company has been backed by several prominent investors over the years, including:
The primary executive developments impacting Lek Pharmaceuticals over the past 12-18 months relate to the successful spin-off of Sandoz from Novartis in October 2023. This established Sandoz as an independent public company with its own governance and executive leadership team. Robert Ljoljo continues to lead Lek d.d. within the new Sandoz structure. Most C-suite changes were at the Sandoz Group AG level to steer the newly independent entity.
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As Lek Pharmaceuticals is a Sandoz company, employees typically use Sandoz email addresses. The most common format is firstname.lastname@sandoz.com.
firstname.lastname@sandoz.com
Format
jane.doe@sandoz.com
Example
85%
Success rate
Sandoz Press Release • November 21, 2023
Sandoz announced a USD 90 million investment to build a new biosimilar technical development center in Ljubljana, Slovenia. This investment aims to strengthen Sandoz's end-to-end biosimilar capabilities and support its pipeline expansion, reinforcing Slovenia's role as a key hub for biosimilar development within Sandoz....more
Sandoz Press Release • April 24, 2024
Sandoz reported strong Q1 2024 financial results, with net sales up 8% and core EBITDA margin reaching 20.9%. The company highlighted growth in both Generics and Biosimilars divisions and reaffirmed its full-year 2024 guidance, demonstrating positive momentum as an independent company....more
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