M33 Growth | 3,289 followers on LinkedIn. M33 Growth is a venture and growth stage investment firm that seeks to partner with founders and CEOs to rapidly scale their companies and break through as industry leaders. With deep experience fueling sales and marketing engines, driving acquisitions and building value through data assets, M33 Growth aims to propel portfolio companies to success in their markets. Founded by veterans of renowned investment firms with considerable operational experience, the Boston-based firm focuses on companies in the software, healthcare and services sectors in North America.