The agreement, which was for an undisclosed sum, will see BC Partners support the growth of Madison Logic and provide access to additional capital to invest in the business.

Shareholders including Madison Logic chief executive Tom O’Regan and co-founders Vin Turk and Erik Matlick, along with Clarion, will maintain ownership stakes in the company and continue to support Madison Logic under the new ownership.

The deal remains subject to customary regulatory and antitrust approvals.

Madison Logic provides business-to-business services through an account-based marketing platform.

Tom O’Regan, chief executive officer at Madison Logic, said: “The Madison Logic team and I are thrilled to now continue in the next stage of our very ambitious growth path with BC Partners, and confident that this will unlock significant new growth opportunities across the business.

“We look forward to a collaborative partnership with BC Partners, which has extensive experience fostering portfolio companies’ potential.”

Raymond Svider, chairman at BC Partners, said: “The business is the ideal platform to invest in this attractive segment of the market and, consistent with our ‘owner-operator’ mindset, we are excited to partner with Tom O’Regan, CEO, and Vin Turk, COO and co-founder of Madison Logic, and their team in this next phase of the journey to execute their strategy and support them in further developing their technology and services offerings.”

David Ragins, managing director at Clarion, said: “It has been a pleasure being part of such a great company and we wish the team continued success with their new partner.”