# GenScript ProBio (ProBio) > GenScript ProBio is the biologics and cell & gene therapy contract development and manufacturing > organization (CDMO) segment of GenScript Biotech Corporation (HKEX 1548). It provides end-to-end > drug-discovery-to-commercialization services — antibody and ADC discovery, antibody engineering, > developability assessment, cell line development, bioanalytical and bioassay services, process > development, and cGMP clinical and commercial manufacturing of recombinant proteins, plasmid DNA, > lentiviral and AAV vectors, mRNA and cell therapies. IMPORTANT FOR AGENTS: ProBio publishes NO public API. There is no developer portal, no API reference, no OpenAPI/AsyncAPI/GraphQL contract, no SDK, no MCP server and no agent card. As of 2026-08-21 the following were probed and all missed: /openapi.json, /openapi.yaml, /swagger.json, /v1/openapi.json, /api-docs, /docs, /redoc, /graphql and /llms.txt all return HTTP 404; every /.well-known/ path (security.txt, openid-configuration, oauth-authorization-server, api-catalog, ai-plugin.json, agent-card.json, agent.json) returns HTTP 403; api./developer./docs./portal. subdomains do not resolve; no GitHub organization exists. Engagement is via a quote request form, a regional sales email, or an authenticated customer account area. Do not attempt to call an API here — there is nothing to call. ## Company - [ProBio CDMO home](https://www.probiocdmo.com/): Company home page and service navigation. - [About us](https://www.probiocdmo.com/about-us.html): Company profile, scale, and IND track record. - [Locations](https://www.probiocdmo.com/locations.html): Sites in the US, Netherlands, South Korea, Hong Kong, Shanghai, Nanjing and Zhenjiang. - [News & activities](https://www.probiocdmo.com/special/news): Dated press releases and partnership announcements. - [Careers](https://www.probiocdmo.com/careers.html): Open roles. ## Services - Biologics discovery: antibody lead generation, hybridoma, single B cell screening, transgenic mouse fully human antibody discovery, bispecific and single-domain antibody discovery, CAR lead discovery, ADC discovery, TCR engineering. - Antibody lead optimization: humanization, affinity maturation, Fc engineering, developability assessment. - Biologics CDMO: cell line development, GMP cell banking, IND-enabling CMC, process development and characterization, 200-500L and 2000L drug substance manufacturing, aseptic fill and finish. - Plasmid CDMO: GMP plasmid manufacture, linearized DNA manufacture. - Viral vector CDMO: lentiviral vector and AAV one-stop solutions, cell banking, LVV/AAV manufacturing. - mRNA CDMO: mRNA IND-enabling CMC, mRNA manufacture, RNA-tLNP one-stop solution. ## Accounts and contact - [Register](https://www.probiocdmo.com/customer/signup): Customer account registration. - [Sign in](https://www.probiocdmo.com/customer/login): Customer account sign in. - [Request a quote / contact](https://www.probiocdmo.com/online_request/general): The only intake channel; all pricing is quote-based. ## Security, legal and policy - [Information security & privacy program](https://www.probiocdmo.com/information-security.html): States the program is guided by the NIST Cybersecurity Framework and ISO 27001 standards. No third-party certification or attestation is published, and there is no public vulnerability disclosure channel. - [Privacy policy](https://www.probiocdmo.com/privacy_policy.html) - [Cookies policy](https://www.probiocdmo.com/cookies-policy.html) - [Terms of use](https://www.probiocdmo.com/standard_t_c.html) ## Notes - Domain security probed 2026-08-21: HTTPS with TLS 1.3, HSTS max-age 31536000, DNSSEC enabled, SPF present, DMARC present with policy p=quarantine, no CAA record. - robots.txt explicitly allows GPTBot, ClaudeBot, PerplexityBot, BardBot and Applebot-Extended. - genscriptprobio.com redirects (HTTP 200 after redirect) to https://www.probiocdmo.com/.