M33 Growth

M33 Growth is a venture and growth-stage investment firm founded in 2017, headquartered in Boston, Massachusetts. Named after Mach 33 — the speed needed to reach escape velocity — it partners with ambitious, bootstrapped founders and CEOs ready to scale into industry leaders. Beyond capital, M33 provides deep operational support in sales and marketing, M&A execution, talent recruiting, and AI adoption, intentionally maintaining a concentrated portfolio of around 19 active companies so each gets meaningful attention and resources. The firm targets B2B vertical software and healthcare services companies across the US and Canada, excluding Silicon Valley-based firms. Notable investments include Contruent, GoDocs, PerformLine, Pediatrica, and Titan EV, with a 2025 exit from Yapi. Typical investments range from $10 to $40 million, seeking meaningful ownership in capital-efficient, profitable companies with strong organic growth and retention.