Middlesex Gases has over 35 years of experience manufacturing and analyzing specialty gases for biotechnology and life science companies. From start-ups to Fortune 100 companies, Middlesex Gases offers customized solutions for all applications. Gas products include: High Purity, Ultra High Purity, Research Grade and over 50 custom blends. Explore the full list of specialty gases that we supply to commercial customers in Massachusetts, New Hampshire, Rhode Island, Connecticut and throughout New England.