| Company Name | City | State | Country/Region | Website | Service Type |
|---|---|---|---|---|---|
| Protagonist Therapeutics, Inc. | Newark | California | United States | protagonist-inc.com | Core Company |
| Protara Therapeutics | New York | New York | United States | protaratx.com | Core Company |
| Protein Sciences Corporation | Meriden | Connecticut | United States | proteinsciences.com | Core Subsidiary |
| Proteologix US Inc. | Redwood City | California | United States | proteologix.com | Core Company |
| ProteoNic BV | Leiden | Netherlands | proteonic.nl | Core Company | |
| Proterris, Inc | Sudbury | Massachusetts | United States | www.proterris.com | General Company |
| Prothena Biosciences Inc. | South San Francisco | California | United States | prothena.com | Core Subsidiary |
| Prothena Corporation | Dublin | Dublin | Ireland | prothena.com | Core Company |
| Provention Bio, Inc. | Oldwick | New Jersey | United States | proventionbio.com | Core Company |
| PSC Biotech Corporation | Pomona | California | United States | www.biotech.com | BBS Vendor |
| PSC Investments | Pomona | California | United States | Finance | |
| Psilera | Tampa | Florida | United States | psilera.com | Core Company |
| PsychoGenics Inc. | Paramus | New Jersey | United States | psychogenics.com | Core Company |
| PtBio Inc. | Higashi-Hiroshima, | Japan | pt-bio.com/?lang=en | Core Company | |
| PTC Therapeutics, Inc. | Warren | New Jersey | United States | ptcbio.com | Core Company |
| PumpKin | Princeton | New Jersey | United States | pumpforourkin.com | Core Company |
| Purnovate, LLC | Charlottesville | Virginia | United States | Core Company | |
| PWR, LLP | Washington | District of Columbia | United States | pwr.com | Legal |
| Pyrojas Inc. | New York | New York | United States | www.pyrojas.com | Core Company |
| Q32 Bio Inc. | Cambridge | Massachusetts | United States | https://www.q32bio.com/ | Core Company |
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