Facilities
Our Manufacturing Campus
Argonaut’s manufacturing campus was intentionally designed to support sterile injectable programs from early clinical development through commercial manufacturing. Our three facilities, located within five miles of one another in Carlsbad, California, combine fill-finish operations, analytical testing, and warehouse space into a coordinated manufacturing campus that scales with your program.
Whether you need a small clinical batch or commercial-scale manufacturing, our campus provides the infrastructure, technology, and expertise to support your program at every stage.
Three Facilities. One Campus
Argonaut’s 90,000 ft2 manufacturing campus spans three facilities in Carlsbad, CA.

Loker Facility
2841 Loker Ave E, Carlsbad, CA
Manufacturing & Analytical Labs | ~30,000 sq ft
- Formulation Suite
- Filling Line #1 (Vials)
- QC Analytical Labs
- QC Microbiology Labs
- Stability Storage
- Short-term GMP Storage
- Visual Inspection Suite

Aston Facility
1900 Aston Ave, Carlsbad, CA
Manufacturing | ~30,000 sq ft
- Two Formulation Suites (including an explosion-rated room)
- Filling Line #2 (Vials, Syringes, Cartridges)
- QC Microbiology Lab
- Stability Storage
- Short-term GMP Storage
- Visual Inspection Room

Priestly Warehouse
5925 Priestly Drive, Carlsbad, CA
Warehouse | ~35,000 sq ft
- cGMP material & chemical receiving/storage
- Barcode-tracked inventory
- Secure quarantine area for incoming materials pending QA approval
- Locked, segregated areas for expired and non-conforming materials pending disposition

Explore our facility without leaving your office
Get a virtual tour of our Aston facility to explore the cleanrooms including the formulation suites, filling suite, inspection suite and ancillary suites as well as the isolator based filling line while learning more about our capabilities, equipment, and quality systems.
Loker Facility


The Loker facility is home to Argonaut’s first isolator-based aseptic fill-finish line.
Filling Line #1 is a fully automated vial filling line featuring 100% real-time, non-destructive weight verification and single-head filling. Designed to maximize product yield, the line incorporates a segregated chamber for capping to reduce particulate, and can restrict line loss to as low as 25 mL (excluding sterile filtration and PUPSIT). It is ideally suited for small scale clinical and commercial manufacturing.
Manufacturer
Variosys® (Bausch+Ströbel in SKAN isolator)
Batch Size
100 to 20,000 vials*
Formulation Volume
250 mL to 200L
Regulatory Phase
RTU Vial: 2R – 30R
Fill Volume
0.25 to 30mL
Pump
Peristaltic
Gas Overlay
Nitrogen
Weight Checks
100% non-destructive
*Based on 2R vials. Batch sizes outside this range may be accommodated on a case-by-case basis.
The Loker facility also houses analytical, microbiology, and stability testing laboratories, along with short-term GMP storage, stability chambers, and a dedicated visual inspection suite.
Aston Facility


The Aston facility houses Argonaut’s second isolator-based aseptic fill-finish line.
Filling Line #2 is a flexible, fully automated fill-finish line capable of handling vials, prefilled syringes, and cartridges with up to four filling heads. The line features 100% real-time, non-destructive weight verification and is engineered to maximize product yield through a no glass-to-glass contact design and low-loss processing. Line loss can be as low as 100 mL when operating with all four filling heads or 25 mL in single-head mode (excluding sterile filtration and PUPSIT). It is ideally suited for mid-scale clinical and commercial manufacturing.
Manufacturer
Optima Multi-Purpose L6000 with Optima Isolator
Batch Size
200 to 100,000 units*
Formulation Volume
1L to 800L
(An explosion-rated formulation suite is available at Aston.)
Regulatory Phase
RTU Vial: 2R – 30R
RTU Syringe: 1mL standard, 1mL long, 2.25mL, 3mL
RTU Cartridge: 3mL
Fill Volume
0.25 to 30mL
Pump
Peristaltic
Gas Overlay
Nitrogen
Weight Checks
100% non-destructive
*Based on 2R vial. Batch sizes outside this range may be accommodated on a case-by-case basis.
The Aston facility also houses microbiology testing laboratories, along with short-term GMP storage, stability chambers, and a dedicated visual inspection room.
Explore Our Aston Facility
Schedule a live virtual tour with an Argonaut team member and explore our manufacturing campus from anywhere. Walk through our GMP cleanrooms, see our Aston fill-finish line up close, visit analytical laboratories and visual inspection suites, and learn more about our manufacturing capabilities.