Third Harmonic Bio, Inc., a biopharmaceutical company, focuses on the development of the medicine for the treatment of allergic and inflammatory diseases.

It develops inflammatory diseases, including dermal, respiratory, and gastrointestinal diseases. The company was formerly known as Project IGE, Inc. and changed its name to Third Harmonic Bio, Inc. in June 2019.

Third Harmonic Bio, Inc. was incorporated in 2019 and is headquartered in Cambridge, Massachusetts.