| Company Name | City | State | Country/Region | Website | Service Type | 
|---|---|---|---|---|---|
| Oragenics, Inc. | Sarasota | Florida | United States | oragenics.com | Core Company | 
| Orchard Therapeutics NA | Boston | Massachusetts | United States | orchard-tx.com | Core Company | 
| Oregon Bioscience Association | Portland | Oregon | United States | oregonbio.org | State Affiliate | 
| Organon & Co. | Jersey City | New Jersey | United States | organon.com | Core Company | 
| OriCiro Genomics | Tokyo | Japan | www.oriciro.com | Core Company | |
| Origenis Gmbh | Planegg | Germany | origenis.com | Core Company | |
| Origin Biosciences, Inc. | Palo Alto | California | United States | https://www.origintx.com/ | General Company | 
| Orlance, Inc. | Seattle | Washington | United States | orlance.com | Core Company | 
| Orna Therapeutics, Inc. | Cambridge | Massachusetts | United States | https://www.ornatx.com/ | Core Company | 
| Orphagen Pharmaceuticals, Inc. | San Diego | California | United States | orphagen.com | Core Company | 
| OrphAI Therapeutics | Guilford | Connecticut | United States | ai-therapeutics.com | Core Company | 
| Orpheris, Inc. | Redwood City | California | United States | orpheris.com | Core Subsidiary | 
| Oryn Therapeutics | Redwood City | California | United States | oryntherapeutics.com | Core Company | 
| OS Therapies | Grasonville | Maryland | United States | ostherapies.com | Core Company | 
| Osmol Therapeutics, Inc. | New Haven | Connecticut | United States | elmvc.com | Core Company | 
| Outer Biosciences LLC | Malden | Massachusetts | United States | outerbio.com | Core Company | 
| Outlook Therapeutics, Inc. | Iselin | New Jersey | United States | outlooktherapeutics.com | Core Company | 
| Ovid Therapeutics Inc. | New York | New York | United States | ovidrx.com | Core Company | 
| Pacylex Pharmaceuticals Inc. | Edmonton | Alberta | Canada | pacylex.com | Core Company | 
| Paint Therapeutics LLC | Atlanta | Georgia | United States | painttherapeutics.com | Core Company | 
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