Louise Williams

Research Analyst

Louise has extensive experience in market research, having worked overseas as a marketing manager with the Latin American Division of GE Medical Systems, as well as a consultant for Booz Allen Hamilton. Her favorite projects have always centered around writing and research, thus making her work as an analyst/researcher at Trewstar extremely satisfying.  

In her spare time, Louise enjoys working with genealogy and helping others build out their family trees. She has her master’s degree from SUNY Albany and currently lives in South Florida.


Beth Warner

Chief of Staff

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. She and her husband live in Florida.


Kate Brower

Chief Operating Officer

Kate joined Trewstar in 2022. Previously, she held numerous marketing and executive positions for companies within the print and digital consumer products industries. At Time Inc., she oversaw the consumer marketing launch of Sports Illustrated For Kids magazine. Under her guidance at Life, the subscription base was stabilized, profits grew, and operations were streamlined. Kate then joined The Education Center in Greensboro, NC. She rose to President and Chief Operating Officer in charge of The Mailbox books, magazines, advertising, and website before leading the company’s acquisition by Infobase Holdings, Inc. She subsequently held the position of General Manager of The Mailbox for Infobase.

Kate attended the College of Wooster (her grandmother, Katharine West was in the class of 1913) and graduated from California State University, Sacramento with a BA with honors in liberal studies. She lived in Mexico City and worked with the United States Department of Agriculture for four years as a Spanish language specialist before receiving her MBA from Northwestern University’s Kellogg School of Management, where she majored in marketing and management systems.

Kate and her husband have lived in Greensboro for 28 years where they raised their four sons. The house is emptier now after decades of carpooling for soccer, band, orchestra, cotillion, scouts, youth group and swimming. Their puppy, Ella, keeps them busy, though.

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 Grund


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. 


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. 


Colleen Woods

Vice President

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. 


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. 


Debra Sandler


Debra is a seasoned Boardroom executive and has been named to the 2021 Most Influential Black Corporate Directors by Savoy Magazine, 2021 Latinos on Boards by Latino Leaders magazine, and Black Enterprise magazine’s 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 brings more than 20 years of experience as a corporate board director to Trewstar. She serves on the board of AMD, Inc. (NASDAQ: AMD) and previously served on the board of Xilinx, Inc. from December 2000 through its acquisition by AMD in February 2022. 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 prior to earning her MBA from the Harvard Business School.

Beth was a member and officer of the Young Presidents’ Organization (YPO), a member of the World Presidents’ Organization (WPO) and is a Henry Crown Fellow of the Aspen Institute. In addition, she serves on the Board of Trustees of Boston College, where she graduated with a Bachelor of Science degree in Computer Science.

Beth resides in New York City 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 composition 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 one husband, five grown children and four grandchildren.


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