
About us
Who We Are:
An end-to-end, multi-modality CDMO
OneSource is India’s first specialty pharma pure-play CDMO, focused on the development and manufacturing of complex pharmaceutical products across multiple technology platforms and therapeutic modalities.
With more than three decades of experience in specialized drug development and manufacturing, we deliver integrated solutions spanning development, manufacturing, and commercialization. Our capabilities are built to support technically demanding programs requiring deep scientific expertise, operational precision, and scalable infrastructure.
Our team of over 1,700 professionals, including more than 100 techno-commercial specialists, works closely with partners to transform complex concepts into commercially successful products.
At OneSource, we believe CDMOs should accelerate innovation, not slow it down. That’s why we operate with agility, transparency, and a highly collaborative approach designed to help partners move programs forward with confidence.
We are redefining what pharmaceutical companies should expect from a CDMO partner.
Speak with our teamWhat we do
Biologics
Integrated development and manufacturing capabilities supporting complex biologics from early development through commercial supply.
● Recombinant proteins
● Monoclonal antibodies and biosimilars
● Cell and gene therapies
● RNA-based products
Drug-device combinations
Integrated development and manufacturing of drug-device combination products designed to improve delivery, usability, and patient outcomes.
● Prefilled syringes and safety systems
● Fixed- and variable-dose pen injectors
● Pull-push pen systems
● Autoinjectors and self-administration platforms
Sterile injectables
End-to-end development and manufacturing of sterile injectable products requiring advanced formulation, analytical, and sterile manufacturing expertise.
● Formulation and analytical development
● Lyophilization cycle optimization
● Sterile manufacturing and fill-finish
● Commercial-scale supply
Our journey
OneSource, a Strides Pharma initiative, is built on a strong legacy of pharmaceutical and biotechnology manufacturing excellence, supported by decades of development, operational, and regulatory experience.
Our values
Integrity
We adhere to ethical practices and maintain transparency in our conduct, fostering a culture of trust and integrity in the organization.
Competency
We develop and effectively apply our knowledge, abilities and skills to successfully and consistently deliver desired outcomes.
Efficiency
We are agile and collaborative to deliver quicker and better results.
End-to-end services across multiple modalities
From early-stage development through commercialization and lifecycle management, OneSource provides integrated support across complex pharmaceutical modalities.
By aligning development, analytical, manufacturing, and device capabilities within a connected operating model, we help partners reduce handoffs, simplify execution, and accelerate progress.
Customer-first. Always.
We believe strong partnerships are built on transparency, responsiveness, and execution.
Dedicated project management and tech transfer teams work closely with clients throughout the product lifecycle, ensuring clear communication, rapid decision-making, and alignment across development and manufacturing activities.
Unique breadth of technical expertise
Our teams bring deep expertise across multiple drug product formats, drug substance technologies, and specialized delivery systems.This includes extensive experience in formulation development, biologics, sterile injectables, drug-device combinations, and oral delivery technologies, supported by decades of operational and manufacturing experience.
Robust quality and compliance standards
Quality, compliance, and confidentiality are embedded across all OneSource operations.
From globally approved manufacturing facilities to integrated Quality Management Systems and a strong inspection track record, our infrastructure and processes are designed to support reliable execution and sustained regulatory readiness.
State-of-the-art facilities:
A foundation for scalable Execution
OneSource’s facilities are designed to support complex pharmaceutical development and manufacturing at global standards.
Across our network, facilities are equipped with advanced technologies and specialized infrastructure supporting biologics, sterile injectables, drug-device combinations, and oral technologies. All operations are aligned with stringent global regulatory expectations and inspected by leading regulatory authorities, including the US FDA, EMA, MHRA, Health Canada, TGA, WHO GMP, ANVISA, and MCC. We currently operate five state-of-the-art facilities in Bengaluru, India, with future expansion planned to support continued growth and evolving market needs.
Discover more about our facilitiesLeadership team
Our board of directors
Advisory team

Carl-Åke Carlsson
Mr. Carlsson, with over 30 years in the pharmaceutical industry, has a strong Scandinavian background. Born in Norway with Swedish roots and having worked in Denmark, he led Xellia Pharmaceuticals as CEO for 15 years, growing the company to $300 million in annual sales and managing 1,800 employees.

Dr. Aleksandar Danilovski (Sasa)
Dr. Danilovski, with nearly 30 years in pharma, is the founder of DALISCO d.o.o. and advises companies in Europe and the U.S. He has been Chief Scientific Officer at Xellia Pharmaceuticals, VP of European R&D at Barr Laboratories, and on the Management Board at PLIVA Pharmaceuticals.
Environmental, Social and Governance (ESG) Standards
Sustainability is embedded in the way we operate, innovate, and grow. At OneSource, we are committed to minimizing our environmental footprint while creating lasting value for our stakeholders and the communities in which we operate.
Today, approximately 80% of our energy requirements are met through renewable sources, including solar and wind power. We are progressing toward ambitious sustainability goals:
Our commitment extends beyond environmental stewardship. We actively support community development through initiatives focused on infrastructure, education, and access to clean water in the regions where we operate. For us, ESG is not a standalone program—it is an integral part of our long-term commitment to responsible, sustainable growth.
To further reduce our environmental impact, we have implemented LPG-based boiler systems, water recycling initiatives, and desilication processes that maximize water recovery and reduce raw water consumption.












