2026 #20 Fastest Growing Company: Cornerstone Business Services

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Industry: Mergers & acquisitions

Led by: Scott Bushkie, founder & managing director

Headquarters: Green Bay

Number of Employees: 18

cornerstone-business.com


Services in 2001 to serve businesses in the lower middle market that were too big for traditional brokers and too small for larger investment banks.

Twenty‑five years later, his Green Bay‑based M&A advisory firm has grown to 18 employees with reach across North America. Cornerstone maintains an 85% closing ratio and was ranked No. 13 on Axial’s 2025 Top 25 Lower Middle Market Investment Banks list.

The firm’s growth stems from proprietary processes like Assurance 360 and the Power of Multiple Offers, plus platforms such as The Cornerstone Advisory Partners Exit Program and Cornerstone International Alliance, which has grown to 35 member firms. “Business owners need better information and better relationships before they are ready to sell,” Bushkie says. “That shift helped us build long‑term relationships instead of waiting for one transaction at a time.”


Cornerstone Business Services

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