Best CDMOs in China — Ranked by Signal Score · 2026
CDMO Signal tracks 19 biopharma CDMOs with confirmed China manufacturing facilities, of which 7 are fully scored across the four-pillar composite Signal Score. Across all modalities, WuXi Biologics, GenScript ProBio, and GenScript lead the China ranking by composite score. Signal Score integrates FDA inspection history, EMA/MHRA GMP certificate density, ClinicalTrials.gov sponsor footprint, and monitored capacity signals. For modality-specific rankings within China — AAV, cell therapy, biologics, and 10 other tracked modalities — see the modality-region breakdown below. Full methodology at cdmosignal.com/methodology.
China-based CDMOs ranked by CDMO Signal's composite Signal Score, filtered to manufacturers with confirmed Chinese facilities. China's CDMO sector has scaled dramatically over the past decade, with substantial commercial capacity across biologics, small molecules, and viral vectors. NMPA has significantly strengthened its GMP framework, and Chinese CDMOs supplying global markets typically hold FDA and EMA certifications alongside NMPA. US sponsors should evaluate recent regulatory developments (1260H list, BioSecure Act considerations) as a distinct decision layer alongside capability assessment. This ranking includes any CDMO with a Chinese manufacturing site.
| # | CDMO | Signal Score | Quality | FDA · GMP | Capacity | Programs |
|---|---|---|---|---|---|---|
| 1 |
WB2
WuXi Biologics
Shanghai, CN · Wuxi, CN
|
83.7 | 100.0 | 0 insp · 4 GMP | — | 0 programs |
| 2 |
GS
GenScript ProBio
Piscataway, NJ · Nanjing, CN
|
79.5 | 100.0 | — | Constrained | 0 programs |
| 3 |
GenScript
Piscataway, NJ (US HQ); Nanjing, China (primary operations)
|
65.5 | — | — | — | 0 programs |
| 4 |
UB
uBriGene Biosciences
Shanghai, CN · Boston, MA
|
60.5 | — | — | — | 0 programs |
| 5 |
CoJourney Inc.
Horsham, PA (US HQ); Hangzhou, China (primary GMP manufacturing)
|
60.0 | — | — | Limited | 0 programs |
| 6 |
RR
RiboBio
Guangzhou, China
|
59.0 | — | — | — | 0 programs |
| 7 |
HB
Hongene Biotech
Union City, CA (US operations); Shanghai, China (primary manufacturing)
|
56.5 | — | — | — | 0 programs |
| — |
WuXi XDC
Shanghai, China
|
Profiled | — | — | — | 0 programs |
| — |
Altruist Biologics
Suzhou, China
|
Profiled | — | — | Available | 0 programs |
| — |
AsymBio
Shanghai, China
|
Profiled | — | — | — | 0 programs |
| — |
Sirio Pharma
Shantou, China
|
Profiled | — | — | — | 0 programs |
| — |
Healsun Biopharm (Hangzhou Healsun Biopharm Co., Ltd.)
Hangzhou, China
|
Profiled | — | — | — | 0 programs |
| — |
Chime Biologics
Wuhan, China
|
Profiled | — | — | — | 0 programs |
| — |
Canton Biologics Co., Ltd.
Foshan (Shunde District), China
|
Profiled | — | — | — | 0 programs |
| — |
Canton Biologics
Guangzhou, China
|
Profiled | — | — | — | 0 programs |
| — |
Asymchem / AsymBio
Tianjin, China (primary manufacturing); Morrisville, NC (US HQ)
|
Profiled | — | — | — | 0 programs |
| — |
Jiangsu Hengrui Pharmaceuticals (Hengrui Pharma)
Lianyungang, China
|
Profiled | — | — | — | 0 programs |
| — |
WuXi STA (Shanghai SynTheAll Pharmaceutical Co., Ltd.)
Shanghai, China
|
Profiled | — | — | — | 0 programs |
| — |
Zencore Biologics
Shanghai, China (R&D facility: Maryland, USA)
|
Profiled | — | — | — | 0 programs |
How do the BioSecure Act and 1260H list affect Chinese CDMO selection for US programs?
Chinese CDMOs with FDA and EMA inspection posture
Which modality classes have the strongest Chinese CDMO capability?
Browse by modality within China
Modality-specific rankings for China-manufactured programs. Each page filters the modality's global ranking to CDMOs with confirmed China facilities.