Excelsior Sciences

Excelsior Sciences leverages blocc chemistry — automated, AI-friendly small molecule synthesis — to accelerate drug discovery and scale from molecule to manufacturing.

Health and bioManufacturing and industrial

TIMELINE · MONEY RAISED

Excelsior Sciences | 692 days from website to first raise on record

Raised $165M in 2 sourced rounds·1 signal before the first raise

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

1. December 3, 2025
   Round · $95M
   Source: fundraisingfox.com
2. December 3, 2025
   Series A · $70M
   DDeerfield (lead), KKhosla Ventures (lead), SSofinnova Partners (lead), CCornucopian Capital, EEli Lilly, IIllinois Ventures, MMassachusetts Institute of Technology (MIT)
   Source: fundraisingfox.com
3. January 11, 2024
   Website created

Founders and team

• BG
  Bartosz Grzybowski Founder
• JJ
  Jana Jensen Founder

  LinkedIn
• MB
  Martin Burke Founder

  LinkedIn
• MF
  Michael Foley Founder

  @foley_mfoley · LinkedIn
• MF
  Marc Feiglin CTO & Head Corporate Development
• BG
  Brian Goldman Vice President AI And Data Sciences

Investors

• CCornucopian Capital
• DDeerfieldlead investor
• EEli Lilly
• EEmpire State Development
• IIllinois Ventures
• KKhosla Ventureslead investor
• MMassachusetts Institute of Technology (MIT)
• SSofinnova Partnerslead investor

Companies like Excelsior Sciences

• IInductive Bio$25M Series A · May 2025
• IIktos$16M Series A · Mar 2023
• DDenovo Sciences
• HHotSpot Therapeutics$100M Series B+ · Nov 2021
• JJnana Therapeutics$107M Series B+ · Nov 2022
• TTerray Therapeutics$120M Series B+ · Oct 2024

Other companies backed by Deerfield

• SSetara Biosciences$90M Series A · Oct 2026
• MMMI$125M Series B+ · Oct 2026
• AAtlas Data Storage$6M Seed · Mar 2026
• AActio Biosciences$66M Series B+ · Jun 2025
• PPetfolk$36M Series B+ · Oct 2024
• LLumeris$100M · Apr 2024

Deerfield portfolio →