Derek is an Investment Partner at MavenHill. Derek’s primary responsibilities include business development, acquisition searches, and coordinating due diligence on prospective investments.
Derek Oster is a Vice President with Argonite Partners, where he focuses on M&A advisory (buy- and sell-side), private placements of debt and equity, and strategic consulting.
Derek began his career in the Valuation Advisory group at Stout, following which he served as a Manager within Marcum LLP’s Valuation, Litigation & Transaction Services group concentrating in business valuation, litigation advisory, complex damages analysis and modeling, strategic/exit planning, and M&A (including buy- and sell-side due diligence). Derek has earned the Accredited Senior Appraiser (ASA) professional license through the American Society of Appraisers (designated in business valuation), as well as the Certified Valuation Analyst (CVA) credential through the National Association of Certified Valuators and Analysts.
Derek majored in Finance at Miami University’s Richard T. Farmer School of Business. He resides in Shaker Heights, Ohio, where he enjoys spending time with his family (including his dog, Tartan), golfing and NBA teambuilding.

