Louise Williams

Research Analyst

After six years of retirement, which consisted almost entirely of volunteer work, Louise has rejoined the workforce as what she calls a “senior experience researcher.” Louise has worked as a marketing professional with GE Medical Systems, Latin American Division, and as a marketing consultant with Technomics, and Booz Allen Hamilton. She has also been a newspaper reporter, a teacher of English as a second language, and an administrative professional.

With a MA in English from SUNY Albany, Louise loves to write and has co-authored four novels. She is an experienced communications professional, who enjoys editing, proofreading, and developing web content. Louise currently lives in South Florida.


Josie Cummings

Research Analyst

Josie is an incoming sophomore at Yale University who is currently taking a leave of absence due to the Covid-19 pandemic. Prior to joining the Trewstar team, she worked as a research intern in the international department at Realty Income Corporation, an S&P 500 real estate investment trust. During the early months of the pandemic, she helped raise $50,000 for Montefiore Medical Center by making and selling tie dye clothing products. She has also worked in the marketing department of the African Leadership University in Mauritius and at Mercury Capital Advisors in New York City.


Beth Warner

Director of Administration

Beth joined Trewstar with twenty-five years of experience working in various administrative capacities in finance, recruiting, consulting and real estate. She was raised in Brazil and graduated from The American University in Washington D.C. with degrees in Communications and Economics. She has lived most of her life overseas and is fluent in Portuguese and French.

Beth is dedicated to helping structure and grow Trewstar as the firm places more outstanding directors on boards. With both her sons in college, Beth and her husband split their time between New Jersey and Florida. 


Maggie Salisbury


Maggie joined Trewstar in 2021 from Cadwalader, Wickersham & Taft LLP, a New York based law firm, where she worked as a legal assistant. At Cadwalader, Maggie supported the Corporate Practice Group, conducting legal research for corporate governance matters and activist investor campaigns. Prior to Cadwalader, Maggie worked as a Business Operations Associate at LISC Small Business, a mission-based lending organization offering loans and financial services to underserved communities. In 2015, Maggie was awarded a fellowship position as part of Princeton University’s Project 55 program, which places recent graduates at non-profit organizations throughout the country.

Maggie graduated from Princeton University with a bachelor’s degree in History, focusing on mid-twentieth century American studies. She lives in Brooklyn, NY and enjoys running, crosswords and cooking.


Claire Merrill


Claire joined Trewstar in 2021 from Columbia Law School, where she designed and implemented streamlined procedures and systems to support the diverse faculty in areas of recruitment, hiring, retention, and data management. As a Society for Human Resource Management Certified Professional, Claire is driven by a passion for understanding others’ strengths and interests as they relate to organizational goals.

Claire graduated with high honors from Wellesley College and has a master’s degree in Social-Organizational Psychology from Columbia University Teachers College. She also has a Business Certificate from Columbia University and a Diversity, Equity, and Inclusion in the Workplace Certificate from the University of South Florida Muma College of Business. Based in New York, Claire enjoys the rich cultural life of the city with concerts, theater, and museums, especially the Morgan Library and Museum where she serves on the Young Fellows Steering Committee. 


Dami Chen


Dami joined Trewstar in 2021 from J.P. Morgan Chase, where she was an Analyst. During her time at J.P. Morgan, she worked in the Investment Banking and Asset Management practices working with senior leaders on various internal and external client engagements. She has prior experience working at Goldman Sachs and in China at Jin Yuan Management.

Dami graduated from Macaulay Honors College in 2019 with a bachelor’s degree in International Business and minors in Finance, Interdisciplinary Studies, and Japanese. She is fluent in various Asian languages and studied abroad at Yonsei University in Seoul, South Korea.


Colleen Woods


Colleen joined Trewstar in 2021 with more than twenty years of professional experience, having worked in a variety of industries. Most recently, Colleen worked in higher education at the State University of New York College at Old Westbury. 

Prior to her time with the College, she worked as a solo practitioner, providing market research, website quality assurance testing, and vendor contract negotiation services to clients including a professional services firm and an endurance sports travel company. Her favorite client assignment allowed her to travel to a number of incredible locales including California’s Death Valley and the Sahara Desert. Colleen started her career at Mercer Human Resource Consulting. Joining as a financial analyst, she went on to become a team supervisor and finally a global project manager.   

Colleen completed her undergraduate studies at Georgetown University and more recently, she earned a Master of Science in Human Resource Management at Stony Brook University. Colleen is proud to serve on the board of the Love Your Neighbor Project, a non-profit founded during the COVID-19 pandemic. 


Annie-Gray Burge


Annie-Gray joined Trewstar in 2021 from Heidrick & Struggles, a global executive search firm, where she was an Analyst. Annie-Gray worked within the Financial Officers Practice placing Chief Financial Officers and senior-level finance leaders at public, private and pre-IPO companies across a variety of sectors including industrial, life sciences, software and consumer products.

Annie-Gray graduated from Boston College in 2019 with a bachelor’s degree in English. While at BC she was a Columnist for the school newspaper, and Leader for the Prison Arts Outreach Program, a group of students that traveled to a nearby women’s prison facility every week to lead engaging arts workshops for the residents. Annie-Gray spent a semester abroad in Stellenbosch, South Africa studying Literature and International Relations.


Jana Wilson


Jana graduated from the University of Michigan in 2019 with a major in Communications and a minor in Writing. While at Michigan, Jana was the Creative Director of a fashion organization on campus that raised money for arts programming in Detroit. She also studied abroad in Paris during her Sophomore year to hone her French. 

Prior to joining Trewstar, Jana worked on the production team for ABC's television show, The View, and at BBDO, a large New York City-based advertising agency. 


Chelsey Baturin

Engagement Manager

Chelsey joined Trewstar in 2019 and has worked on dozens of placements for pre-IPO and public companies across all sectors. Prior to joining Trewstar, she taught high school French at Boston Latin Academy and then at the Kent School in Connecticut. While at Kent, she also taught West African dance after competing in a national dance competition during her college junior year abroad in Cameroon. Chelsey has also consulted on several community development projects in NYC and rural India to support marginalized communities.

Chelsey graduated from Wellesley College with a bachelor’s degree in French Cultural Studies and Peace & Justice Studies. She also completed her MPA in International Economic Policy from Columbia University.


Antonia Bullard

Managing Director

Antonia has managed operations, made and integrated acquisitions, grown businesses, and provided strategic consulting in the energy, manufacturing, business intelligence, and financial sectors. She began her career with the British multinational Consolidated Gold Fields and has worked in companies as diverse as a food equipment manufacturer in Chicago and an insurance start-up in the Russian Federation.

Antonia was Vice President of the Energy and Natural Resources team for the global information and solutions company, IHS Markit. In that role, she was a regular presenter at the world’s premier energy event, CERAWeek, and a founder organizer of its Women in Energy stream. Antonia was Chief Operating Officer of PFC Energy prior to its acquisition by IHS.

Antonia holds a degree in Philosophy, Politics, and Economics from Oxford University and did graduate work at MIT in economics and business as a Kennedy Scholar. She lives in northern New York with her husband of over 40 years.



Heather Wolf

Managing Director

Heather joined Trewstar from Allegis Partners, a boutique search firm where she specialized in board placements. She previously spent 15 years with the Financial Times, where she developed events and publications for corporate directors and executives. Under her leadership, the FT Outstanding Directors Exchange (ODX) conference series and awards program became the gold standard for director education, providing a platform for advancing corporate governance. Heather also developed and launched the FT Global CFO Forum and FT US Banking Forum. 

Prior to working with the Financial Times, Heather was a director at Wolff Olins, a leading strategic branding firm. She started at the London headquarters and was part of the small team that launched the US business in NY and San Francisco. She was previously a principal at Capgemini, where she led business transformation projects in the US (Equity Life, Texaco, Unocal), Europe (Amerada Hess, AXA, Hill Samuel, Mobil Europe) and South Africa (Fedsure/Investec, McCarthy Motor Holdings, Southern Life, South African Telkom). She began her career in a business development role at Aon in Chicago and LA. 

A native of Ann Arbor, Michigan, Heather has a BA from Tulane University and a Masters of International Management from Thunderbird School of Global Management. She was elected four times to the board of her Long Island public school district, serving on the Board of Education for 12 years. She currently sits on the board of the Directors Academy, a national non-profit dedicated to identifying, developing and placing diverse corporate directors. 


Holly Hegener

Managing Director

Holly joined Trewstar in 2017 from Gravitas, a purpose-driven e-commerce fashion company based in NYC, where she was a founding team member and Director of Corporate Social Responsibility. After law school and a federal clerkship in Chicago, Holly worked in the litigation department of O’Melveny & Myers in Washington, DC. She relocated with her husband to Johannesburg, South Africa, where she worked with the Justice Department and ANC legislators on efforts related to justice reform and reconciliation during the dynamic post-apartheid years. She was also one of the first outside directors of a 95,000 acre, big-five game reserve, the first-private South African reserve of its kind. During her tenure, she helped transition management from the developer to the owners and assisted in devising the owners’ first comprehensive strategic plan.

Holly was a director of Peterson’s Guides, a private education data company, for 10 years and has since extended that experience into the non-profit realm. She currently sits on the boards of the Open Space Institute and EcoHealth Alliance.

Holly graduated from Yale University and the University of Chicago Law School. She lives in New Jersey with her husband and their four children.


Debra Sandler

Senior Advisor

Debra is seasoned Boardroom executive and has been named to the 2018 Most Influential Board Directors by WomenInc. Magazine, Best of the Boardroom by Hispanic Executive magazine, the Savoy Magazine Power 300 and The Black Enterprise Registry of Black Corporate Directors. Debra is a Member of the Board of Directors at Archer Daniels Midland Company, Dollar General Corporation, Keurig Dr Pepper Inc., and Gannett Co Inc. where she is Chair of the Transformation Committee. She is also a member of the Board of Advisors for Pharmavite, LLC. where she is one of only two external Board members. Debra is a Trustee of her alma mater Hofstra University and a member of the Executive Leadership Council and the Latino Corporate Directors Association. 

Debra started her career at PepsiCo in a number of marketing leadership positions in the beverage and restaurant businesses. She then went on to Johnson & Johnson where she was the Worldwide President of McNeil Nutritionals and led the launch of Splenda® no-calorie sweetener. Under her leadership, Splenda grew to be the #1 low-calorie sweetener in the US and several markets around the world. Debra served as the Co-Chairperson for the J&J Women’s Leadership Initiative, representing the views and needs of women across the globe within J&J. She then went on to Mars Inc. where she held several roles including Chief Consumer Officer, Twix Global Brand Leader, President of Mars Chocolate North America, and Chief Health and Wellbeing Officer.   

Debra holds an undergraduate degree in International Business from Hofstra University, an MBA from New York University’s Stern School of Business, and an Honorary PhD from the Long Island University School of Pharmacy. Debra resides in New Jersey and is the founder of Mavis Foods, an entrepreneurial startup of Caribbean sauces and marinades.


Beth Vanderslice


Beth has been on the Board of Xilinx, Inc. (NASDAQ: XLNX) since 2000, chairing the Nominating and Governance Committee and serving on the Compensation Committee. During her tenure, she has helped steward the company through a diverse array of complex governance matters, including engaging with investors and activists, board refreshment, and facilitating two CEO transitions, all while enhancing the board’s governance standards by creating and implementing a state-of-the-art board evaluation process. She was named as a 2018 Most Influential Board Director by Women, Inc. magazine.

Beth held the position of CEO of Wired Digital, Inc., Wired Ventures, Inc.'s online-media company, and served on the boards of both Wired Digital, Inc. and Wired Ventures, Inc. before leading the company’s acquisition by Lycos, Inc. She subsequently assumed the position of General Manager of Lycos, Inc. through the company’s acquisition. Prior to joining Wired Digital, Beth was an investment banker in San Francisco. She also worked with the IBM Corporation before earning her MBA from the Harvard Business School.

Beth was a member and officer of the Young Presidents’ Organization, a member of the World Presidents’ Organization, and was awarded a Henry Crown Fellowship by the Aspen Institute in 2000. In addition, Beth has served on the Board of Trustees of Boston College, where she graduated summa cum laude, the French American International School in San Francisco, and The Bay Area Discovery Museum.

Beth resides in Manhattan with her husband and three children.


Beth Stewart

Founder and CEO

Beth brings more than 20 years of experience as a corporate board director to Trewstar, giving her a deep understanding of both corporate governance needs and the dynamics of a well-functioning board. She is a former director of Carmax, Inc., General Growth Properties, and Avatar Holdings. Her boardroom experiences include management transitions, board refreshment, activist challenges, and both IPO and bankruptcy processes. As CEO of Trewstar, Beth has a proven track record of finding exceptional directors for Fortune 500, mid and small-cap, and pre-IPO companies across industries throughout the US.

Beth started her career at Goldman Sachs as the first analyst in the investment banking division. After graduating from business school, she rejoined Goldman Sachs and continued her career in Real Estate investment banking. She went on to be an active investor and consultant as well as an adjunct professor at the Columbia Graduate School of Business.

Beth is a recognized expert on boardroom diversity and other corporate governance issues and speaks regularly at industry events. She has been quoted in the NYT, WSJ, Bloomberg, Forbes, and HBS Alumni magazine. She has presented at many conferences, including most recently the annual NACD conference and the IR Media Corporate Secretary Think Tank. She has also been featured on Yahoo! Finance. Her experience is the subject of a Harvard Business School case study entitled “Beth Stewart: Navigating the Boardroom.”

Beth graduated from Wellesley College and Harvard Business School. She lives and works in the greater NYC area. She has five grown children and one husband.


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