These 5 Boston Tech Companies Raised a Combined $1.4B+ in September

Learn how the companies that secured last month’s highest venture funding rounds are investing their fresh capital.

Written by Ashley Bowden
Published on Oct. 02, 2023
The Boston skyline is pictured.
Photo: Shutterstock

Venture funding activity in Boston soared last month with companies in sectors spanning biotech, agriculture and more pulled in nine-digit funding rounds. Find out how these platforms are growing following their sizeable investment rounds.

Top Boston Tech Funding Rounds, September 2023

  1. Ascend Elements
  2. Boston Metal
  3. Indigo
  4. Apollo Therapeutics
  5. Nimbus Therapeutics

 

#5. $210 million, September 6

Biotech company Nimbus uses its drug discovery engine to design and develop medicines. The company announced a round of private financing co-led by Google Ventures, SR One and Atlas Venture. The new funding will help Nimbus advance its next wave of tech-enabled small molecule medicines.

 

#4. $226.5 million, September 6

Patient Square Capital led the latest round of funding for a company that offers an R&D platform for discovering and developing new medicines. Following a hefty round of Series C funding, Cambridge-based biopharma Apollo Therapeutics plans to advance its programs through clinical development while furthering its drug discovery and development efforts.

 

#3. $250 million, September 15

Agriculture tech company Indigo secured a hefty round of Series E capital for its marketplace solution that lets grain buyers and sellers transact directly to save on supply chain costs. Indigo’s new funding will help it execute on its product portfolio, with an emphasis on growing its marketplace platform.

 

#2. $262 million, September 6

Metal technology company Boston Metal pulled in a round of Series C funding from investors including Aramco Ventures, M&G Investments, Goehring & Rozencwajg and Baillie Gifford. The round will help Boston Metal open a new manufacturing facility for its technology that aims to decarbonize the steelmaking process. It’s on track to ship its first products in 2024.

 

#1. $460 million, September 6

Headquartered in Westborough, Ascend works to develop sustainable battery materials for electric vehicles. The company pulled in a round of Series D funding led by Decarbonization Partners, Temasek and Qatar Investment Authority. Ascend will put the money toward building a  commercial-scale manufacturing facility in Kentucky.

Methodology: Built In tracked the largest funding rounds of the month using previous reporting, data from Crunchbase and articles from other publications and companies. This list highlights the five largest funding rounds raised in September by tech companies with a headquarters in Boston. We only include venture capital and equity raises and do not include debt or post-IPO funding rounds in this list.

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