We are a fill finish service offering the highest level of sterility assurance and quality achievable.

Sterile Filling

Our isolator-based flexible fillers offer you container choice in your drug product. We fill vials, syringes, cartridges, and we lyophilize.

Stability Programs

Our expert quality team will develop and execute robust stability protocols to determine your drug product’s stability.

Analytical Services

We will transfer your methods and develop more reliable and durable methods to ensure your testing meets cGMP standards.

Whatever your project may need, we can fill it

Vial Filling
Flexibility and Quality Catered to You
Syringe Filling
Unmatched Sterility Assurance
Cartridge Filling
A fill you can trust
Lyophilization
Controlled Freeze-Drying

Why BSM?

Quality
70% of contaminated drug product is due to human contamination. At BSM, we use isolators to remove the manufacturer from the filling process and dramatically reduce your product’s risk
Flexibility
Most manufacturers may not fill your container choice. Our state-of-the-art flexible fillers are capable of filling syringes, cartridges, and vials as well as specialty containers. We give you options.
Expertise
BSM has experience in complex formulations, ranging from viscous filling and formulation to conjugant formulation. We will tackle complex formulations where others may shy away.
Communication
We welcome our clients onsite to watch their fill and speak with the staff directly involved in their drug production process. You will find full transparency throughout your project.

Watch a Fill from Start to Finish!

News and Events

CMO Works Around the Clock to Produce COVID-19 Meds
09 Apr 2020
CMO Works Around the Clock to Produce COVID-19 Meds
BSM staff fill COVID-19 drug into vials.   Wednesday, April 8, 2020 ...
Lee biopharmaceutical company manufactures treatments to aid in fight against coronavirus pandemic
09 Apr 2020
Lee biopharmaceutical company manufactures treatments to aid in fight against coronavirus pandemic
Brittney White, a microbiologist at Berkshire Sterile Manufacturing and resident...
Berkshire Sterile Manufacturing, working on coronavirus meds, plans $20M expansion
07 Apr 2020
Berkshire Sterile Manufacturing, working on coronavirus meds, plans $20M expansion
Berkshire Sterile Manufacturing in Lee continues to work on COVID-19 treatments ...