Jonathan Goldenstein

Jonathan Goldenstein is a co-founder and Partner of Kingfish Group, the private equity advisory and investment firm he helped establish in 2004 alongside Kevin Macdonald and Christian Dubiel. At Kingfish he leads firm strategy and organizational development, with a particular emphasis on assembling and guiding high-performing teams. He has grown the firm from a startup into an organization of more than 40 people across five offices (San Francisco, Boston, Denver, Washington DC, and Pune, India). According to the firm, Kingfish has advised on more than $10 billion in private equity transactions over the past decade-plus and has made direct equity investments into a large number of private companies.

Before Kingfish, Goldenstein co-founded Tropos Networks, a wireless mesh networking company later acquired by ABB, where he defined the sales, marketing, and product strategy that brought a category-defining product to market — with systems eventually deployed at more than 1,000 customers across 50+ countries. He also worked as an investment professional at JAFCO America Ventures, an early-stage venture capital firm, and earlier served as a consultant/business analyst at McKinsey & Company, where he developed distribution and sales strategies for Fortune 500 companies.

Goldenstein earned a B.A. in Economics and English from Brandeis University, graduating summa cum laude and Phi Beta Kappa. He brings more than 20 years of combined experience across private equity investing, venture capital, and operating company-building.

• Invests primarily in middle-market private equity rather than classic angel/seed deals; Kingfish Capital Partners assembles diversified portfolios of middle-market PE investments across industry, style, and manager.
• Sector breadth: technology, healthcare, business services, industrials, transportation, consumer/retail, and financial services.
• Geography: focused on U.S.- and Canada-based companies.
• Model: Kingfish works with a select group of private equity managers to evaluate, co-invest in, and accelerate deals — supplying diligence, board members, and operating partners. It describes its edge as "relationships that drive systematic advantage in private equity."
• Scale: the firm reports having made direct equity investments into 25–55+ private companies and engaging in hundreds of private transactions each year through its executive network.