Expedition Medicines
Expedition Medicines is a biotechnology startup using AI for small molecule drug discovery, focusing on oncology and immunology. The company has raised $50M in Series A funding and employs 51 people.
The growth story
Expedition Medicines grew from 14 to 51 employees between 2023 and 2026, raising $50M along the way, most recently a Series A in October 2025.
About
Expedition Medicines develops an AI platform for designing small molecule drugs, targeting proteins that were previously inaccessible. Their approach combines quantum chemistry AI with chemoproteomics data to create potential first-in-class drug candidates, primarily for cancer and immune-related diseases.
The company, founded in 2022, has grown to 51 employees and secured $50M in Series A funding led by Flagship Pioneering. Their rapid hiring and substantial funding suggest an aggressive push into drug discovery.
Founders and leadership
Research is the largest function at Expedition Medicines, with 23 employees dedicated to this area. The company is led by a team likely drawn from Flagship Pioneering's network, given the investor's strong influence.
The Expedition Medicines org chart
Molly Gibson (CEO) leads 15 mapped leaders with 5 direct reports. Click +N to expand a team; names link to the person’s public profile.
Talent flow
Expedition Medicines recruits heavily from Flagship Pioneering, Vividion Therapeutics, and major pharmaceutical companies like Pfizer and Merck. Employees often hold degrees from MIT, Northeastern University, and Boston University.
Most common previous employers of Expedition Medicines staff: Flagship Pioneering (5), Vividion Therapeutics (4), Pfizer (3), Harvard Medical School (3), Dana-Farber Cancer Institute (3), Merck (3). Former Expedition Medicines employees most often moved to Flagship Pioneering (1), Merck (1).
What this company is made of
Most common skills at Expedition Medicines: Data Analysis (17), Biochemistry (16), Research Skills (15), Drug Discovery (14), Cell Culture (14), Molecular Biology (13), Python (Programming Language) (12), High-Performance Liquid Chromatography (HPLC) (12).
Where the team actually sits
Expedition Medicines people are concentrated in Massachusetts, United States (24), Greater Boston (8), United States (6), California, United States (4).
Search footprint
Expedition Medicines attracts about 4 organic search visits a month, traffic worth roughly $0K a month if bought through ads. It gained 16 ranking keywords and lost 2 in the last period.
Frequently asked
Expedition Medicines has 51 employees as of September 2026.
Expedition Medicines has raised $50M in total, most recently a Series A round in October 2025.
Expedition Medicines was founded in 2022 by Marie Yurkovich, PhD, Nathan Stebbins.
Molly Gibson (CEO) sits at the top of Expedition Medicines's reporting structure, with 5 direct reports.
The most common previous employers of current Expedition Medicines staff are Flagship Pioneering (5 people), Vividion Therapeutics (4 people), Pfizer (3 people).
Former Expedition Medicines employees most often move to Flagship Pioneering (1), Merck (1).
Expedition Medicines attracts about 4 organic search visits a month, worth roughly $0K a month in equivalent ad spend.
The most common skills among Expedition Medicines staff are Data Analysis, Biochemistry, Research Skills, Drug Discovery, Cell Culture.
Expedition Medicines staff are concentrated in Massachusetts, United States (24), Greater Boston (8), United States (6).
Expedition Medicines has about 33 people in Research, up 27% over the past year, as of September 2026.
Expedition Medicines has about 6 people in Business Development, up 50% over the past year, as of September 2026.
Computed from 45 current and 5 former Expedition Medicines profiles, as of September 2026. Source: Crustdata.
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