Capsid Biotechnology

Antibodies | Biosimilars | ELISA Kits | Inhibitors & Activators | Peptides | Biochemicals | Compound Libraries | Custom Synthesis

Capsid Biotechnology is a UK-based life science supplier giving research groups a single, documented route to the reagents their programmes depend on. Its catalogue holds 34,000+ unique products across more than 70,000 purchasable pack sizes, spanning antibodies, small-molecule inhibitors and activators, ELISA kits, biochemicals, peptides, natural products and screening libraries for academic laboratories, biotech companies, pharmaceutical R&D teams and CROs.

Antibodies are Capsid’s largest line, with over 18,000 catalogue products including primary and phospho-specific antibodies, biosimilar and reference antibodies, in vivo grade antibodies, isotype controls and secondaries, validated for WB, IF, IHC, ELISA and flow cytometry. The wider catalogue includes 6,100+ inhibitors and activators for key pathways such as protein tyrosine kinase, PI3K/Akt/mTOR, apoptosis, cell cycle, epigenetics, neuronal signalling, immunology and inflammation, metabolism, DNA damage and repair, GPCR and NF-κB, plus 1,900+ ELISA and assay kits and 4,300+ biochemicals.

Every catalogue compound ships with a Certificate of Analysis, MSDS and full technical datasheet carrying solubility data, stock-solution tables, biological activity with Ki and IC50 values, and referenced in vitro and in vivo protocols. HPLC and NMR traces are available on request. More than 37,000 products have batch documentation on file.

Beyond the catalogue, Capsid supports discovery through custom small-molecule synthesis from milligram to kilogram scale, viral vector engineering for AAV, lentivirus and retrovirus workflows, bespoke compound library design, and assay development and CRO support. Its scope is strictly preclinical and basic research use: Capsid supplies researchers and does not handle GCP or clinical-grade regulated materials.

In the BeNeLux region, Capsid products are available through Bio-Connect, giving researchers and R&D teams local access to Capsid’s broad research-use catalogue, supported by Capsid’s EU presence in Zagreb and experience with European supply.

Unique Selling Points

  • 34,000+ research-use catalogue products across antibodies, inhibitors, activators, ELISA kits, biochemicals, peptides, natural products and screening libraries.
  • 18,000+ antibodies, including primary, phospho-specific, biosimilar and reference antibodies, in vivo grade antibodies, controls and secondaries.
  • Technical documentation available, including CoA, MSDS, datasheets, analytical traces and batch documentation where applicable.
  • Practical datasheet information, including solubility data, stock-solution guidance, Ki/IC50 values and referenced protocols where available.
  • 85 curated screening libraries, including focused sets and a 99,000+ compound HTS library.
  • Custom small-molecule synthesis, viral vector engineering, bespoke library design and assay/CRO support.
  • EU presence in Zagreb and European supply experience, with Capsid products available in the BeNeLux through Bio-Connect.
  • Scientific account management and regulatory support for research-use and development-stage workflows.

Major product lines

  • Antibodies: 18,000+ products, including primary, phospho-specific, biosimilar and reference antibodies, in vivo grade antibodies, controls and secondaries.
  • Small-molecule inhibitors and activators: 6,000+ products across kinase signalling, epigenetics, apoptosis, autophagy, PI3K/Akt/mTOR, GPCRs, ion channels and transporters.
  • Biochemicals: 4,000+ products, including buffers, salts, detergents, stains, dyes, substrates, lipids, markers and click-chemistry reagents.
  • ELISA and assay kits: cytokine, growth factor and biomarker kits, plus cell health, viability and cell-signalling assays.
  • Natural products: plant extracts, alkaloids, polyphenols, terpenoids and secondary metabolites for screening applications.
  • Peptides: bioactive peptides, peptide building blocks, fragments, tags, controls and blocking peptides.
  • Molecular biology and research tools: extraction, cDNA synthesis, PCR, library preparation, cloning, enzymes and CRISPR reagents.
  • Compound libraries: 85 curated collections, including HTS, bioactive compound, inhibitor, anti-cancer, FDA-approved drug and focused research libraries.
  • Labware and consumables: pipettes and tips, plates, tubes, vials, slides, cassettes, racks and PPE.
  • Instruments: nucleic acid extractors, luciferase assay systems, centrifuges and PCR instrumentation.
  • Plant health: tissue culture media, agars and supplements.

Research areas covered

  • Oncology and cell cycle: protein tyrosine kinase, PI3K/Akt/mTOR, MAPK, Ras, CDK, apoptosis, autophagy, DNA damage and repair.
  • Epigenetics: HDAC, histone methyltransferase, epigenetic reader domains, DNA/RNA synthesis.
  • Immunology and inflammation: interleukins, CD markers, NF-κB, TGF-β/Smad, JAK, TNF-α biosimilars.
  • Neuroscience: 5-HT and adrenergic receptors, AChR, GPCR and G protein, ion channels and transmembrane transporters.
  • Metabolism and endocrinology: dehydrogenases, estrogen and progestogen receptors, metabolic and anti-diabetic compound sets.
  • Microbiology and infectious disease: antibacterials, antifungals, antivirals and anti-infection libraries.
  • Cytoskeletal signalling and cell biology: ROCK, PKC, cytoskeletal pathway tools and stem cell reagents.

Custom services

Capsid’s custom services start where the catalogue stops. The team supports custom small-molecule synthesis from milligram to kilogram scale, based on defined requirements for structure, purity, quantity, delivery format and timeline, with analytical documentation available for each batch.

For gene therapy and gene-editing research, Capsid designs and produces AAV, lentiviral and retroviral vectors. For screening projects, Capsid can develop bespoke compound libraries, including focused oncology sets, diversity libraries or selections from its 85 curated collections, plated to your specifications.

Capsid also supports assay development and CRO work, helping researchers move from hit identification toward validated leads. Additional support is available for biotech customers working toward GMP-grade requirements.

Every project is scoped by a scientist to ensure the proposed solution matches the experimental need.

Interested in a custom solution? Submit your custom services request and our team will help you with the next steps.

  • Custom small-molecule synthesis: milligram to kilogram scale, with analytical documentation
  • Viral vector engineering: AAV, lentiviral and retroviral vector design and production
  • Compound library design: bespoke screening sets, plated to specification
  • Assay development and CRO support:  from hit identification to validated lead
  • GMP support: for biotech customers scaling toward GMP-grade requirements

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