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Mapp Biopharmaceutical

San Diego, United StatesFounded 2003Industry

Mapp Biopharmaceutical develops antibody therapeutics against Ebola and other biothreat viruses. CBRNE-relevant work is a primary business line according to its website.

What it does

monoclonal antibodiesmedical countermeasuresantibody

Threats covered

Ebola/filovirusesviral hemorrhagic feversbotulinum toxin
Categories

Profile

Mapp Biopharmaceutical is a privately held San Diego biotechnology company founded in 2003 that develops antibody treatments for infectious diseases, with its commercial arm LeafBio. It is best known for ZMapp, a three-antibody, plant-made Ebola treatment developed with LeafBio, Defyrus, the US government and Canada.

More profile

In 2014 the US Department of Health and Human Services contracted it to develop the drug, with an 18-month value of 24.9 million dollars extendable to 42.3 million. In 2017 the Biomedical Advanced Research and Development Authority made a Project BioShield award of about 46 million dollars to move ZMapp toward licensure.

A 2020 BARDA contract for a pan-botulinum antibody was terminated in March 2026. An NIH success story describes its broader neglected-disease work.

Ownership

Privately held; LeafBio is its commercial arm

Parent: none identified

Sources (5)
Not verified or not found
  • Ownership and investors: not found.
  • The March 2026 botulinum termination appeared in one search summary of a federal record and was not opened.
  • Whether ZMapp is licensed: not found.
Questions

What does Mapp Biopharmaceutical do?

Mapp Biopharmaceutical develops antibody therapeutics against Ebola and other biothreat viruses. CBRNE-relevant work is a primary business line according to its website.

Where is Mapp Biopharmaceutical based?

HQ (as found): San Diego. HQ country: US.

Who owns Mapp Biopharmaceutical?

Privately held; LeafBio is its commercial arm. Parent: none identified

Profiles are compiled from public sources and sampled-checked, not fully audited. Last verified 17 October 2026. Report a correction