ACG New York, an association for middle-market dealmaking professionals, announced the appointment of four new board members and creation of a new vice president-international position.

The new board members are David Acharya, partner, Ascend Global Investments; David Hellier, partner, Bertram Capital; Michael D. Schwamm, partner, Duane Morris; and Jonathan Flaks, leadership coach, Jonathan Flaks Coaching Associates, Inc.

The board appointed Tanya Marvin-Horowitz to fill the new position of vice president-international.

The board appointments are for three-year terms and are effective as of September 1, 2013. Flaks, who is based in Dobbs Ferry, NY, is the organization’s vice president for Westchester programming. He and Marvin-Horowitz are members of ACG New York’s operating committee.

ACG New York also reappointed its chairman, president, secretary and treasurer to an additional one-year term. They are, respectively, Stephen V. Prostor, a director, senior credit officer and head of loan syndications at Citi Private Bank; Martin Okner, managing director, SHM Corporate Navigators; Michael Kliegman, partner, PricewaterhouseCoopers LLP; and Maureen McCarthy, principal, Law Offices of M.W. McCarthy.

ACG® New York, the founding chapter of The Association for Corporate Growth, is a leading membership organization in New York that facilitates relationship building and focused education for middle market deal-making professionals.