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S.E. Massengill Company

For profit

Phase 1 Phase 2 Phase 3 Phase 4

Acquired by Beecham → SmithKline Beecham → GlaxoSmithKline on Jan 1, 1971

Timeline

1890s

Jan 1, 1898
S.E. Massengill Company— Founded

1970s

Jan 1, 1971
Beecham— Acquired By

2000s

Jan 1, 2000
GlaxoSmithKline— Now

Details

Founded: Bristol, TN, US Jan 1, 1898