Guatemala Leadership

Adolfo Yarhi

Executive Director

Adolfo has over 12 years of experience in the education sector and over 30 years of experience in managing different businesses, with a strong background in finance and strategy.

He has a degree in Business Management with specialization in Finance and Marketing, holds an MBA, and a certification in Educational Leadership.

Astrid Celada

Head of Philantrophy

Astrid has a bachelor Degree in Business Administration and Sales, she has more than 15 years of experience in sales and fundraising. Firmly committed to build Guatemala through education.

Carlos Quisquiná

Head of Finance

Carlos has over 15 years of work experience in Administration and Finances. He has a Bachelor in Business Administration and a degree in Accounting.

María Sandoval

Head of Education

Maria has over 25 years of experience in Education. She is a teacher, psychologist and holds a specialization in Family educational counseling.

She firmly believes that we can generate changes in Guatemala through the education of children and youth.

Patricia Starrs

Head of Development

Patricia has a bachelor’s degree in finance from Michigan State University, she has more than
15 years of experience in organizational finances in various industries, and over 7 years of
experience with children’s NGOs and fundraising. She is committed to building better
opportunities for Guatemala’s children through education, nutrition, and health.

Europe Leadership

Liselotte Garos

Manager General Affairs

Liselotte has strength in Latin America and education. She lives in Amsterdam and is fluent in Spanish, English and Dutch. She holds a Master’s degree in Latin American Studies and a Bachelor’s degree in Spanish Language and Culture.

Margje Polman Tuin

Fundraising Strategist

Margje is an experienced fundraiser. She is responsible for prospecting, upgrading, and relationship management of major donors (private, companies, foundations and organizations) and of building long lasting partnerships. She has a degree in European Studies and specializations in Marketing from The Netherlands Institute of Marketing..

Non-Executive Board The Netherlands

Tim Crijns

Chair President

Tim has 10 years of experience in impact investment and law. He has a master degree in Business Administration and Strategic Management

Tony Wright

Contact person Guatemala

Tony has over 20 years of experience in Advertising and Marketing, and sits on multiple boards in this field.

Sander Wirken


Sander is a co-founder of NDG and recently obtained his PhD in International Criminal Law, specialized in Latin America.

Marten Dresen

Contact person Guatemala

Marten is a co-founder of NDG and founder of Good Group. Marten has a masters in Strategic Management from the Erasmus University Rotterdam

Annemiek Dresen

Board member

Annemiek is a co-founder of NDG and is also a founder of NewBees refugee employment insertion organization. She has a masters in Anthropology and has 10 years experience in the field.

Schools Staff Guatemala

Alejandra Gamez

Secondary School and Highschool Principal

Alejandra has 18 years of experience in Middle and High School education. She has been 8 years with NDG as our Principal. She holds an Administrative Degree and a Pedagogy Degree. Graduated from Universidad San Carlos de Guatemala.

Fabiola Veliz

Nuestro Futuro School Principal

Fabiola has over 11 years of experience in Preprimary and Primary Education.  She holds an Associate Degree specializing in education for children with learning disabilities and a Bachelor’s Degree in Psychopedagogy, graduated from  Universidad del Valle de Guatemala

Marvin Minas

El Porvenir School Principal

Marvin has over 10 years of experience in Preprimary, Primary, and High School education. He holds an Administrative Degree specializing in education, and graduated from Universidad Panamericana de Guatemala.