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  7. Eisai Inc
Eisai Inc logo

Eisai Inc

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Exton, PA 19341
201-692-1100
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At a glance

Headquarters
Exton, PA

About

Eisai Inc. is the U.S. pharmaceutical business of Eisai, conducting research, development and manufacturing in the United States for nearly 40 years. Its work includes biologic medicines and treatments in neurology and oncology, with U.S. operations spanning discovery through manufacturing and distribution.

Capabilities and markets

Products

Manufacturing processes

Materials worked

Service offerings

Economic activities

End markets served

Directory supply chains

Classification

NAICS codes

Certifications and registrations

Certifications

  • LEED certification

  • Good Manufacturing Practice (GMP) standards

    Compliance program

  • GMP

    Quality certification

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  • Pfizer Inc logoPfizer IncPfizer Inc. is a biopharmaceutical company that discovers, develops, manufactures, and markets medicines and vaccines. The company operates multiple manufacturing sites in the U.S. and globally, producing active pharmaceutical ingredients, drug products, and medical devices, and serves healthcare markets worldwide.NEW YORK, NY
  • Aurobindo Pharma USA, Inc logoAurobindo Pharma USA, IncAurobindo Pharma USA, Inc. manufactures and distributes generic pharmaceuticals as part of a vertically integrated pharmaceutical operation. Incorporated in the United States in 2004, it lists product manufacturing facilities in New Jersey and emphasizes a broad generic-drug portfolio supplied to wholesalers and retail chains.PEARL RIVER, NY
  • Bristol Myers Squibb logoBristol Myers SquibbBristol Myers Squibb is a global biopharmaceutical company that discovers, develops and delivers medicines for serious diseases. Its research and manufacturing network is especially focused on oncology, hematology and cell therapy, including personalized CAR T therapies made at facilities in Washington and New Jersey. The company traces its scientific legacy to the early 1800s and has maintained continuous operations at its New Brunswick site since 1905.NEW YORK, NY
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Contact information

Website

us.eisai.com

Emails

  • EisaiUSAFoundation@eisai.com
  • esi_medinfo@eisai.com

Phone numbers

  • 201-692-1100
  • 201-746-2600

Social

Locations

Eisai Inc location map for 215 WELSH POOL RD

215 Welsh Pool Rd

Exton, PA 19341

Chester County

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Static map unavailable for this location.

200 Metro Blvd

Nutley, NJ 07110

Eisai Inc location map for 1310 G ST NW

1310 G St Nw

Washington, DC 20005

District of Columbia

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Eisai Inc location map for 210 WELSH POOL RD

210 Welsh Pool Rd

Exton, PA 19341

Chester County

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Eisai Inc location map for 4130 PARKLAKE AVE

4130 Parklake Ave

Raleigh, NC 27612

Wake County

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Directory source

Source
us.eisai.com
Updated
Sep 2026