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Sumitomo Pharma America, INC.

Doing business as Sepracor Inc. (Previous Legal)
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At a glance
EmployeesNot reported
In business sinceNot reported
HeadquartersMarlborough, MA
US patents2
SAM.gov UEIHASGGMWUKAZ5
CAGE code0RFU3
Incorporated inDE
LISTED ON FACTORYREGISTRY100%SOURCE COVERAGE

Open positions

Openings read from Sumitomo Pharma America, INC.’s own job board on Workday, last checked OCT 29, 2026. FactoryRegistry does not host applications — each title opens the posting where the company published it.

31 more on the company’s board

Supplier designations

For Profit OrganizationManufacturer of Goods

Self-certified by the company in its SAM.gov registration

Patents

2 US patents granted in 2024, 2 of them in the five years to SEP 2025.

Organic fine chemistry 1Pharmaceuticals 1

Granted to Sumitomo Pharma America, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0

Their plant

FacilityCityStateEmployeesStatus
Sumitomo Pharma America, INC.MarlboroughMA— ACTIVE

WARN Act notices

Filed with the state under the federal WARN Act · WARN Act notices feed, CC BY 4.0

Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.