Ian S. Chasse Osborn

Associate - Boston

Chasse Osborn
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Contact Information

Chasse Osborn is an associate in Foley Hoag's Business Department and Tax Group. He advises clients on domestic and cross-border business tax planning matters. Chasse also regularly advises public and private companies on a wide range of general corporate matters, including formation, financing, mergers and acquisitions, licensing and strategic alliances, and general corporate governance.


  • Georgetown University Law Center, J.D., cum laude, 2017
  • Clemson University, B.S., 2009



Representative Experience

  • Represented ConstructSecure, provider of an SaaS platform that leverages leading risk and financial indicators to accurately pre-qualify subcontractors and vendors to improve safety, in a growth equity investment by Summit Partners. 
  • Assisted biotechnology ecosystem company Alloy Therapeutics, Inc. with the formation of Broadwing Bio LLC, a joint venture with Maze Therapeutics, Inc., to develop targeted antibody therapies for the treatment of ophthalmic diseases. 
  • Represented Entegris, a leader in specialty chemicals and advanced materials solutions for the microelectronics industry, in its $36 million acquisition of Global Measurement Technologies.
  • Represented LevelUp, a leader in mobile diner engagement and payment solutions for restaurants, in its $390M sale to online and mobile food-ordering and delivery marketplace Grubhub Inc.
  • Foley Hoag webinar, "Cannabis Businesses: Essential Tax Planning Considerations," Foley Hoag webinar, September 2020
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Bar Admissions

  • Massachusetts