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Robert Mahon Named a Top M&A Provider in St. Louis

January 14, 2026

St. Louis Small Business Monthly has recognized Spencer Fane attorney Robert Mahon as one of its 2025 Top M&A Providers.

This reader-nominated distinction honors 10 of St. Louis’ leading mergers and acquisitions attorneys for their proven dedication to advancing the success of small businesses. Rob and his fellow honorees were spotlighted in the publication, each sharing insights on M&A challenges for business owners, key considerations, common mistakes, and the current and future environment for the industry. Rob emphasized the importance of building the right team of advisors for a potential deal.

“Business owners need a team of advisors experienced in M&A involved in the transaction, including, as applicable, legal, tax, accounting, and investment banking/business broker, and they need to involve such advisors early in the deal process – generally before any letter of intent, term sheet, or memorandum of understanding is signed,” Rob said. “Having handled hundreds of M&A deals with a wide variety of legal counsel representing the counterparty, it’s crucial that the attorneys representing the buyer and the seller are attorneys experienced in M&A, which often leads to a ‘win-win’ scenario for the buyer and the seller, with a more favorable outcome for each party.”

At Spencer Fane, primarily serves as outside general counsel and lead mergers and acquisitions counsel for clients. He regularly represents private and public companies; family offices, private equity firms, and their portfolio companies; and startups, search funds, and self-funded entrepreneurs, for which he’s handled billions of dollars of transactions.

Read Rob’s full 2025 Top M&A Provider profile here.

Spencer Fane
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