Custom DNA
Manufacturing

Services for plasmids and Minicircles

An employee working in the lab

At PlasmidFactory, we provide custom DNA manufacturing services for clients in life sciences, biotechnology, gene therapy, and pharmaceutical research. Our advanced platform delivers high-quality, custom plasmid DNA and Minicircle DNA, tailored to your exact specifications – whether for research, preclinical studies, or clinical applications.

Unlike standard DNA services, we use a biotechnological DNA production process based on E. coli replication, ensuring high sequence fidelity, minimal impurities, and a scalable workflow. Our DNA is not synthesized chemically but amplified biologically – producing highly pure, supercoiled DNA free from synthetic enzyme residues.

Whether you need expression vectors, therapeutic constructs, or gene editing components, PlasmidFactory delivers precision-engineered DNA constructs from Research to GMP Grade, optimized for your application.

Why Chose PlasmidFactory

  • Custom plasmid and Minicircle DNA with scalable production up to GMP grade
  • High-purity, supercoiled DNA using proprietary purification technologies
  • Fast turnaround, transparent timelines, and regulatory-ready documentation
  • Enabling cell & gene therapy (e.g. in vivo, ex vivo, virus-free), viral vector production (e.g. AVV, LVV), vaccine development (e.g. mRNA templates) and beyonds

Application Highlights

  • Cellular therapies (e.g., CAR-T)
  • Viral vector development (e.g., AAV & LVV)
  • Vaccine DNA production (e.g., mRNA templates)
  • In vivo end ex vivo transfections
  • Virus-free gene delivery
  • Protein expression
  • Cell and gene editing (e.g., CRISPR)

Chose your product

Plasmid DNA helix schematic

Plasmid DNA

Explore our pDNA services

Plasmid DNA helix schematic

Minicircle DNA

Explore our mcDNA services

Advanced quality control

Quality management at PlasmidFactory

All custom DNA undergoes stringent in-house quality controls, with the option to include additional, project-specific tests, including:

  • DNA purity
  • DNA topology: supercoiled vs open circular
  • Endotoxin levels
  • DNA yield and concentration
  • NGS sequencing
  • Host cell protein (via ELISA)
  • Residual chromosomal DNA (via qPCR)
  • RNA contamination analysis
  • Many more

All tests are documented in a batch-specific report.

Our quality grades

Scalable plasmid and Minicircle DNA — from research to clinical manufacturing.

PlasmidFactory offers clearly defined quality grades to support every stage of your project — ensuring regulatory alignment, performance consistency, and seamless scale-up within one trusted CDMO.

Scientific Quality (SQ) Grade

Advanced research standard

  • Research Grade – reliable DNA for routine and advanced laboratory applications
  • CCC Grade – ≥95% supercoiled DNA for performance-critical and topology-sensitive workflows

High Quality (HQ) Grade

Highest non-GMP standard

  • EMA guideline-based manufacturing with validated methods and full traceability
  • Ideal for preclinical and early clinical starting material
  • Also available as HQ in GMP: produced in dedicated GMP facility using end-to-end single-use processes

GMP Grade

Clinical & commercial compliance

  • Manufactured in a dedicated EU GMP (Annex 1 & 2) compliant facility
  • End-to-end single-use USP & DSP processes and in-house QP release
  • Various fill & finish options
  • Designed for late-stage clinical trials and commercial supply

Get in touch!