Meet the Board

Sameera Troesch


Associate General Counsel at Triton International Limited. Former Counsel at Mitsubishi Corporation (Americas). Formerly a Corporate Associate, in Sullivan & Cromwell LLP’s New York and London offices. Graduate, Governing for Nonprofit Excellence program at Harvard Business School. 

Jonathan Bailey Holland

Vice Chair

Professional Affiliation: Composer. Chair of Composition, Contemporary Music, and Core Studies at Boston Conservatory at Berklee; Founding Faculty of composition at Vermont College of Fine Arts; Advisory Board Member for New Music USA



Frederick Wertheim 

Immediate Past Chair

Attorney-Partner, Sullivan & Cromwell LLP; Former music teacher, American School of Tangier, Morocco; Secretary, Peoples’ Symphony Concerts; Board Member, The Martina Arroyo Foundation, Inc

Michael Fehrman 


Managing Director and Head of Americas Accounting Policy, Deutsche Bank AG; former Vice President for Finance, Goldman Sachs & Co.; former Executive Director for Accounting, UBS AG

Marilyn Go


United States Magistrate Judge for the Eastern District of New York from 1993 to 2018.

Astrid Baumgardner


President, Astrid Baumgardner Coaching + Training; Faculty, Yale School of Music; Affiliate Partner, ars prudentiae; former Deputy Executive Director, French Institute Alliance Francaise; Attorney & Former Partner, Gide Loyrett Nouel; President, Musica Viva of New York; Chair, Opera Council, Manhattan School of Music

Derek Bermel

Artistic Director

Composer and clarinetist, former ACO Artistic Advisor; former artist in residence, Institute for Advanced Study at Princeton University.

Jane Cavalier


Founder & CEO, BrightMark Consulting; former Executive Vice President for Strategic Planning Worldwide, McCann-Erickson Advertising; Board of Directors, Pardee RAND Graduate School of Policy Analysis; Member, NationSwell Council

Philip Glass


Composer; Board of Directors, The Kitchen; Board of Directors, Tibet House

Augusta Gross


Clinical Psychologist; Composer; former Board member ARCO Collaborative, founded by Jennifer Koh; former Board Member, Concert Artists Guild  

Benjamin Hildner


Vice President, Investment Management Division, Goldman Sachs & Co. Previously Cellist, Deutsche Oper Berlin. Co-Chair of Council of the Phil at the New York Philharmonic, Board Member of Long Beach Opera, Salastina Music Society, and the American Friends of Philharmonia Orchestra.

Chris Lando


Professional Affiliations: Vice President of Rhône, Former Director at Lazard in New York, Former investment banking Analyst at Atlas Advisors in New York, Received an A.B. in Economics and a Certificate in Finance from Princeton University.

Tess Mateo


Managing Director, CX Catalysts. Former professional: Director, PricewaterhouseCoopers; Executive Committee, Friends of Inner City Scholarship Fund; Member, Patrons Council of Carnegie Hall; Advisory Council of World-Links.

Annette McEvoy 


Founder & President, Envision Retailing LLC & Epic Beauty LLC; Past Vice President and General Manager Personal Care, The Gap. past Executive Vice President, Bath & Body Works (Limited Brands); director, Grosvenor Neighborhood House YMCA; Action Council Committee, Fashion Institute of Technology

Samir Nikocevic


Received his music degree in piano performance and piano pedagogy from the Music Academy at the University of Zagreb.  Resident of Savannah and New York City. Former Chairman, Savannah Philharmonic. Board Member, American Traditions Vocal Competition. 

Geoffroy van Raemdonck


Chief Executive, Neiman Marcus Group. Former professional: President, Ralph Lauren Europe; CEO, St. John Knits; President, Louis Vuitton Southern Europe; and VP, Louis Vuitton North America. Senior Manager, The Boston Consulting Group; board member, Eos Orchestra

Michael Russell


Partner, TimesSquare Capital Management; Former media equity analyst at Morgan Stanley where he was a multiple year member of Institutional Investor All-America Research Team; Leadership Council, Americares, a disaster relief and global health organization; Board member of Perrot Memorial Library

Deborah Sherman 


Professional Affiliation: Yale alumna, Life and health insurance broker

Karen Slack


Professional Affiliation: Soprano, Artistic Advisor for Portland Opera, Co-Director Opera Program at the Banff Centre for the Performing Arts, Co-Chair of the Women’s Opera Network with OPERA America.

Toyin Spellman-Diaz


Oboist; Founding Member of Imani Winds. Faculty, Curtis Institute of Music, NYU Steinhardt, Brooklyn College.

Melinda Wagner


Pulitzer Prize-winning composer and Chair of Composition, The Juilliard School

Our Mission & Vision

American Composers Orchestra (ACO) is dedicated to the creation, celebration, performance, and promotion of orchestral music by American composers. With commitment to diversity, disruption and discovery, ACO produces concerts, pre-college and college education programs, and emerging composer professional development to foster a community of creators, audience, performers, collaborators, and funders.

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