Winterberry Group

About Us / Petsky Prunier LLC

Petsky Prunier LLC is Winterberry Group’s investment banking affiliate. Working together, the two firms serve the technology, media, marketing, eCommerce, and healthcare industries, a powerful combination of strategic insight, transactional expertise and a results-oriented commitment to success—heightening the value every client stands to realize through our engagements.

Above all else, Petsky Prunier’s M&A and private placements advisory services reflect a unique blend of product specialization and industry expertise.


Petsky Prunier brings extensive knowledge and experience and a tailored approach to M&A and capital markets and private placements transactions for their entrepreneur, investor and strategic acquirer client base and relationships. They own one of the most comprehensive databases in the business with more than 25,000 company profiles. Their knowledge of transaction histories, strategic priorities, relevant partnerships and executive profiles grows daily—resulting in deep, informed relationships within their industry network. They regularly share their expertise through the quarterly Deal Notes publication, periodic white papers and invitation-only events.  In addition, Petsky Prunier offers international reach through their partnership with investment bank Altium. Founded more than 20 years ago and privately owned, Altium operates from eight offices across Europe.


Petsky Prunier is singularly focused on understanding the economic and strategic needs of their clients, and endeavor to produce outcomes that often exceed their goals through an optimal match and an efficient process. At Petsky Prunier, senior partners are personally invested in every opportunity. The firm has as many partners and managing directors as junior associates and analysts, ensuring that every client gets the benefit of senior-level strategic thinking, oversight and accountability.


When Petsky Prunier engages a client, it’s because they believe in them. They work hard to make sure their clients can have the same trust in them. Seeing a deal through from start to finish is what Petsky Prunier does. Every deal is important, because, for every client they take to market, they take their name, too. The Petsky Prunier brand is aligned with each and every client. They are involved, attentive and dedicated to every engagement.

View Petsky Prunier Deal Notes