Ensuring reliable supply of drug products with our CDMO services
Committed to delivering even the most challenging projects
Our experienced team is highly dedicated to taking our customers’ precious innovations on an industrial scale. Across our global network, our team of experts is committed to going above and beyond to ensure on-time, in-full delivery.
Impeccable quality track record over multiple decades
Siegfried stands out when it comes to exceptional quality and regulatory compliance in drug manufacturing. All Siegfried sites are focused on the highest cGMP standards and are approved by national and international authorities, including the U.S. Food and Drug Administration (FDA), Swissmedic, Japan’s Pharmaceuticals and Medical Devices Agency (PMDA), Spanish Agency of Medicines and Medical Devices (AEMPS), the German Health Authority, and more.
State-of-the-art development centers for drug products
We operate two well-established development centers for drug products. In Barcelona, our facility focuses on oral solids including highly potent drug products and offers a broad range of development services and flexible pilot capacities. Meanwhile, the Hameln site specializes in the development of aseptic and sterile injectables, supporting formulation and scale-up under strict compliance standards.
Extensive expertise in handling highly potent APIs
Siegfried is one of the most trusted partners for highly potent oral solid dosage forms.projects. Our team has multiple decades of experience handling highly potent APIs, offering development and manufacturing services with facilities and equipment in containment with WIP/CIP system. Our facilities safely process complex compounds with strict Occupational Exposure Limits (OEL) reaching as low as 0.1 μg/m³.
Expert insights on drug product manufacturing
Siegfried's centers of excellence for drug products
Europe
Zofingen
Zofingen is the headquarters of the Siegfried Group and one of Siegfried’s two launch sites for newly developed processes. The production site specializes in the development and commercial manufacturing of active pharmaceutical ingredients (APIs) and intermediates, including high potency APIs. Founded in 1873, the site has a broad portfolio of technological capabilities including hydrogenation, organometallic and hydride chemistry, halogenation, methylation, milling and micronization and more. All activities are conducted in strict compliance with quality standards (GMPs) and with safety, health protection and environmental standards.
Competencies
- Active pharmaceutical ingredients (API) and intermediates
- Highly active and controlled substances
- Custom synthesis

4800 Zofingen Switzerland
Evionnaz
Siegfried Evionnaz is one of Siegfried’s two launch sites for newly developed processes. It specializes in custom synthesis of active ingredients and intermediates for the pharmaceutical industry. With an R&D Center housing advanced chemical and analytical facilities, state-of-the-art laboratories, and cutting-edge technologies, it offers chemical process R&D and analytical development services for Siegfried’s global Drug Substances network. Established in 1957, the site has a broad portfolio of technologies including micronization, azide chemistry, hydrogenation, halogenation, organometallics, cryogenics, and more. Focused on niche technologies, the facility possesses development capacity from 1 gram to industrial-scale production. All activities are conducted in strict compliance with quality standards (GMPs) and with safety, health protection and environmental standards.
Competencies
- Active pharmaceutical ingredients (API) and intermediates
- Custom synthesis

1902 Evionnaz
Switzerland
Zurich
DINAMIQS, a Siegfried company, is a science-driven Contract Development and Manufacturing Organization offering end-to-end viral vector manufacturing solutions to accelerate gene therapy projects from DNA design to commercial scale. DINAMIQS offers a comprehensive and customized range of manufacturing services, process development, quality control and analytics solutions for genetic medicine companies.
Competencies
- Viral vectors

Hameln
Siegfried Hameln is one of Siegfried’s six Drug Products sites globally. It is a leading manufacturer of parenteral solutions, producing a wide range of aseptic and terminally sterilized products in ampoules and vials, with a dedicated development center for sterile injectables. Its specialization lies in the production of complex formulations, including anesthetics, flammable substances, oxygen-sensitive liquids, and cold chain products, all while ensuring strict compliance with quality standards (GMPs) and with safety, health protection and environmental standards. The site has a broad portfolio of technological capabilities including cold-chain handling, automated visual inspection and packing and more. All activities are conducted in strict compliance with quality standards (GMPs) and with safety, health protection and environmental standards.
Competencies
- Sterile and aseptic filling of ampoules and vials
- Biologics and small molecules

Minden
Siegfried Minden is one of Siegfried’s five run and deliver sites for established processes. It specializes in synthesis of active ingredients and intermediates for the pharmaceutical industry. Established in 1935 and focused on efficient operations and special technologies, the facility possesses production capacity from approximately 25 kilograms to multi-100-ton-scale production. The site has a broad portfolio of technological capabilities such as hydrogenation, organometallic and hydride chemistry, milling and micronization, halogenation and more. All activities are conducted in strict compliance with quality standards (GMPs) and with safety, health protection and environmental standards.
Competencies
- Active pharmaceutical ingredients (API) and intermediates
- Highly active and controlled substances
- Custom synthesis

Karlstrasse 15
32423 Minden
Germany
St.Vulbas
Siegfried St.Vulbas is one of Siegfried’s five run and deliver sites for established processes. It specializes in synthesis of active ingredients, intermediates and custom synthesis for the pharmaceutical industry. Established in 1993, the site has a broad portfolio of technological capabilities such as organometallic and hydride chemistry, phosgenation, hydrogenation, halogenation and more. All activities are conducted in strict compliance with quality standards (GMPs) and with safety, health protection and environmental standards.
Competencies
- Active pharmaceutical ingredients (API) and intermediates
- Custom synthesis

530 Allée de la Luye
01150 Saint Vulbas
France
Barberà del Vallès
Siegfried Barberà is one of Siegfried’s six Drug Products sites globally. It specializes in manufacturing and packaging solid oral dosage forms (OSD), including high-potency and inhalation capsules for treating respiratory diseases. Established in 1994, the site supplies products worldwide including Japan and the USA. It has a dedicated Development Center offering development and scale-up services for solid dosage forms and inhalation capules. The site has a wide range of equipment to produce solid formulations on a small and large scale, with blister, bottle and wallet/Shellpak packaging forms. Its state-of-the-art production equipment integrates Industry 4.0 technologies, such as digitization, system integration, robotics, and automation, ensuring precise processes. All activities are conducted in strict compliance with quality standards (GMPs) and with safety, health protection and environmental standards.
Competencies
- Bulk manufacturing and packaging of solid dosage forms for oral applications including high potency
- Inhalation capsules for medical devices to treat respiratory diseases

08210 Barberà del Vallès (Barcelona)
Spain
El Masnou
Siegfried El Masnou is one of Siegfried’s six Drug Products sites globally. It has a long track record of expertise in manufacturing aseptic products, with the site established in 1925. It is the largest factory in Spain specialized in ophthalmic products, both eye drops and sterile eye care ointments, as well as products for nasal and otic use. It has a dedicated Development Center offering development and scale up services focused on sterile ophthalmic products. The site’s technological capabilities include ball milling molturation, pre-use post sterilization integrity testing, and multi-dose round, oval and preservative-free bottles. Processes are fully automated and use cutting-edge technology, embracing Industry 4.0 technologies like system integration, robotics, and extensive automation. All activities are conducted in strict compliance with quality standards (GMPs) and with safety, health protection and environmental standards.
Competencies
- Bulk manufacturing and packaging of sterile ophthalmic products, including eye drops, eye ointments, otic/nasal sprays

08320 El Masnou (Barcelona)
Spain
Hal Far
Siegfried Malta is one of six Siegfried’s Drug Products sites globally. It specializes in the manufacturing of oral solid dosage forms (OSD), encompassing tablet and capsule formulations with diverse release profiles (IR, SR, DR), formulations and technologies. Established in 2007 as one of the first OSD sites within the Siegfried network, technologies range from dry blends, aqueous and organic – wet/dry granulation (bottom with Wurster technology and top spray), tableting, encapsulation, coating and blister packaging. The facility has the ability to produce manufacturing batch sizes on a mid – large scale, with a focus on tech transfer and scale up activities. All operations comply strictly with quality standards (GxPs), safety, health protection and environmental standards.
Competencies
- Bulk manufacturing and packaging of solid dosage forms for oral applications

Hal Far BBG 3000
Malta
USA
Irvine
Siegfried Irvine is one of Siegfried’s six Drug Product sites globally. It is a sterile drug product manufacturing site, specializing in innovative and difficult to manufacture pharmaceuticals, ophthalmics, and drug delivery devices. It provides cGMP sterile drug product fill and finish of biologics, suspensions, emulsions, ointments, and gels in a fully compliant manner. Established in 2002, the site’s technological capabilities include state-of-the-art filling lines for vials, droptainers and prefilled syringes; bulk filling capabilities; and low oxygen, light sensitivity, low humidity and non-aqueous product handling. All activities are conducted in strict compliance with quality standards (GMPs) and with safety, health protection and environmental standards.
Competencies
- Sterile and aseptic filling of large and small molecules

Pennsville
Siegfried Pennsville is one of Siegfried’s five run and deliver sites for established processes. It is Siegfried’s drug substance manufacturing site for the US market and provides spray drying operations globally. Established in 1928, its main activities are pilot and commercial manufacturing of drug substances (APIs) and intermediates, in a fully cGMP and SHE compliant manner. The site has a broad portfolio of technological capabilities including spray drying, organometallic and hydride chemistry, hydrogenation, milling and micronization and more.
Competencies
- Active pharmaceutical ingredients (API) and intermediates
- Highly active and controlled substances
- Custom synthesis

Pennsville, NJ 08070
USA
Grafton
The Siegfried Acceleration Hub in Grafton specializes in early-phase development and manufacturing. Established in 1998, the site offers phase-appropriate analytical and development services, regulatory expertise, and regulatory-compliant quality systems — all with the capability to manage highly potent and controlled substances. The Acceleration Hub provides end-to-end life cycle management with services from preclinical through commercial, including scale-up, tech transfer, validation and launch, with seamless transfer into Siegfried’s global network. The site has a broad portfolio of technologies and capabilities, including phase-appropriate preclinical process development, advanced filtration technologies, CMC sections of DMFs, alternate synthesis, route scouting and more. All activities are conducted in strict compliance with quality standards (GMPs) and with safety, health protection and environmental standards.

Athens

Wilmington
Siegfried Wilmington, is one of Siegfried’s five run and deliver sites for established processes. It is a large-scale commercial manufacturing facility for innovative products and controlled substances, supporting a wide range of therapeutic applications. Established in 1979, the multi-purpose site today offers 150 cubic meters of reactor capacity with a wide range of technologies, operating to the highest regulatory and quality standards.
Competencies
- Active pharmaceutical ingredients (API), Intermediates, Controlled Substances

Wilmington, DE 19801
USA
Asia
Nantong
Siegfried Nantong is one of Siegfried’s five run and deliver sites for established processes. It specializes in custom synthesis of active ingredients and intermediates for the pharmaceutical industry. Established in 2013, the chemical plant’s technological capabilities include organometallic chemistry, hydrogenation, alkylation, amination, chlorination and milling. All activities are conducted in strict compliance with quality standards (GMPs) and with safety, health protection and environmental standards.
Competencies
- Active pharmaceutical ingredients (API) and intermediates
- Custom synthesis

Nantong City, Jiangsu Province
P.R.C. (post code: 226017)
Australia
Westbury

FAQ: drug product manufacturing
What is a drug product CDMO?
A drug product Contract Development and Manufacturing Organization (CDMO) provides services that support the development, manufacture, packaging, and lifecycle management of pharmaceutical drug products. These services typically include formulation development, clinical trial supply, process scale-up, commercial manufacturing, and regulatory support to help pharmaceutical companies bring medicines to market efficiently.
What is drug product manufacturing in pharma?
Drug product manufacturing refers to the process of transforming a formulated active pharmaceutical ingredient (API) into a finished dosage form (such as a tablet, capsule, or injection) that is ready for patient use. It includes blending, granulation, compression or filling, coating, packaging, and testing under cGMP.
What types of drug products can Siegfried manufacture?
Siegfried manufactures a broad range of dosage forms, including oral solids (tablets, capsules, pellets), sterile injectables and other liquid forms, ophthalmics, and capsule-based dry powder inhaler (DPI) products.
Can Siegfried support the development and manufacturing of highly potent drug products?
Yes. Siegfried has decades of experience handling highly potent active pharmaceutical ingredients (HPAPIs) and drug products. Its facilities and expert teams support the safe development, scale-up, and commercial manufacturing of highly potent medicines using advanced containment technologies and robust quality systems.
What is the difference between a drug substance and a drug product?
In pharmaceutical manufacturing, a drug substance (also known as an API) is the active chemical or biological ingredient that provides the intended therapeutic effect. A drug product refers to the final, finished dosage form that contains the drug substance along with excipients and is ready for patient use.
How are drug products manufactured at Siegfried?
Drug products at Siegfried are manufactured under stringent cGMP conditions, using harmonized processes that ensure quality, safety, and scalability. Siegfried supports the full lifecycle, from formulation development and clinical trial supply to commercial production and packaging.
Where are drugs manufactured at Siegfried?
Siegfried manufactures drug products at multiple GMP-certified sites across Europe and the US: Hal Far, Malta; Hameln, Germany; Zurich, Switzerland; El Masnou, Spain; Barberà del Vallès, Spain; and Irvine, California, US. Siegfried produces drug substances (APIs) at its other locations in Europe, the US and Asia.
How does Siegfried ensure quality and regulatory compliance in drug product manufacturing?
Quality is embedded throughout Siegfried’s global manufacturing network. Its sites operate according to current Good Manufacturing Practice (cGMP) standards and are regularly inspected and approved by leading international health authorities, including the U.S. FDA, Swissmedic, PMDA, AEMPS, and other regulatory agencies.




