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Upstream Processing
Enable stepwise, risk-controlled scale up of microbial bioprocesses, from benchtop through to commercial scale fermentation with flexible capacity that grows alongside your program.
Downstream Purification
Deliver target yield, purity, and performance through custom downstream solutions, engineered to align with your specifications and optimize every stage of your process for consistent, reliable results.
Analytical Testing
Ensure confidence at every stage with structured, risk-managed transfer, qualification, and validation of analytical assays for raw material inspection, in-process analysis, and final product release.
Formulation & Final Product Processing
Streamline production with integrated formulation, bulk lyophilization, and fill-finish services, enabling efficient progression from pilot batches to high-volume output with consistent quality and reliability.
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EKF Diagnostics
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Formulation & Final Product Processing

From pilot batches to commercial supply, we deliver scalable formulation and fill–finish solutions for reagents, kits, and diagnostic products

Scalable diagnostic fill and finish solutions
with low MOQs, from development to
commercial manufacture

Nexus Bioworks provides pilot‑to‑commercial‑scale formulation, fill, and finish services for bulk reagents, diagnostic kits, and molecular assays, helping ensure products are manufactured consistently and released with confidence. Based at our Boerne, Texas facility, we support flexible batch sizes and custom kit configurations, enabling programs to scale
in line with demand.

Operating from FDA-registered facilities in the U.S., and under ISO 13485:2016 and ISO 9001:2015 certified quality management systems, our formulation and fill–finish activities are aligned
with cGMP requirements.

Overview Capabilities Key benefits

One partner for critical raw material fermentation, formulation, and kitting

We specialize in the contract manufacture of bulk reagents and diagnostic kits across a wide range of applications and industry sectors, supporting both pilot‑scale and high‑volume commercial production.

Our experienced scientific teams manage both bulk hazardous materials and small‑volume, high‑value ingredients, supporting controlled scale‑up from benchtop development through to 800 L production volumes.

Our flexible manufacturing model enables low‑MOQ pilot batches through to routine commercial supply, supporting evolving product demand across the lifecycle.

Capabilities
Clinical chemistry reagents
Calibrators
Quality control controls
Reagents for molecular kits
Molecular transport media

Capabilities
PCR kits (RT‑PCR and qPCR)
DNA/RNA extraction kits
Sequencing kits
Genotyping kits
Protein assay kits
Gene editing kits (CRISPR)
Diagnostic IVD test kits

Capabilities
Clinical chemistry reagents
Calibrators
Quality control controls
Reagents for molecular kits
Molecular transport media

Capabilities
PCR kits (RT‑PCR and qPCR)
DNA/RNA extraction kits
Sequencing kits
Genotyping kits
Protein assay kits
Gene editing kits (CRISPR)
Diagnostic IVD test kits

Tailored Work Plans

Our technical team collaborates closely with you to design customized, staged work plans to transition projects from development to pilot production or full-scale manufacturing.

Low MOQ Flexibility

Low MOQ Flexibility: We offer low minimum order quantities (MOQs) for formulation and kitting services, supporting early-stage development projects.

Collaborative Process Optimization

We work as an extension of your team, optimizing processes for efficiency, scalability, and quality.

Comprehensive Project Management

We oversee the entire value chain, from onboarding and qualifying suppliers to inventory management and coordinating outsourced activities with third parties.

Partner of choice for commercial scale kit manufacturing

See how our flexible final product manufacturing solutions help our clients take their diagnostic products from
discovery to commercial scale manufacture.