Byron S. Kalogerou is the founder of the Firm’s Life Science Industry Group and the senior attorney in the Boston Corporate Practice. He focuses his practice on domestic and cross-border mergers and acquisitions, finance, and joint ventures and alliances. He has substantial on-the-ground experience structuring mergers, acquisitions, divestitures and joint ventures on six continents. Byron has extensive industry background in the life science, industrial and manufacturing sectors. He also acts as outside general counsel to a number of companies.

Show More


  • Represented Straumann AG, a global leader in tooth replacement solutions, in its acquisition of ClearCorrect, LLC, a leading manufacturer of clear aligners, for $150 million.
  • Represented Anvil, LLC, a leading North American manufacturer and supplier of products that connect, hang and support piping systems, in various acquisitions, including Flexhead Industries, Sprinkflex, Basic-PSA and Megawatt Machine.
  • Represented Take 5 Media Group, a leading consumer information aggregation and advertising company, in the sale of its business to Advantage Solutions, a leading North American provider of business solutions to consumer goods manufacturers and retailers.

Show More


  • The Legal 500 United States 2012 to 2018
  • Acritas Stars 2019, listed among independently rated lawyers
  • LMG Life Sciences, Life Science Star 2016, 2018


  • American Bar Association, Committee on Mergers and Acquisitions, co-chair, Task Force on Legal Project Management


Vermont Law School, JD, 1986
Harvard Business School, Advanced Management Program Certificate, 2001
Dartmouth College, BA, 1983
Phillips Exeter Academy, 1979