Mario Sylvander: Email & Phone Number

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Co-founder at 3Dethos Inc|United States

Position:

Co-founder at 3Dethos Inc

Location:

United States

View Mario Sylvander's Email

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Last updated: 2026-09-03

Updated: 2026-09-03

Found email addresses for Mario Sylvander:

Business emails:

m*************r@ykpaoschool.cn,

m*************r@3dethos.com,

m***o@3dethos.com

Personal emails:

m*************r@gmail.com

Found phones for Mario Sylvander:

+1-520-***-**30,

+1-520-***-**14,

+1-909-***-**91,

+1-909-***-**94

A different Mario Sylvander?

Work Experience 42 years

Co-founder at 3Dethos Inc

Jul 2021 - Current

Director of Higher Education and Careers at Wellington College International Hangzhou

Jul 2024 - Jul 2026

Director of Careers and University Counseling at YK Pao School

Aug 2020 - Jul 2024

Head of Secondary, College Counselor, TOK Teacher at Boston School International - Panama

Jul 2017 - Jul 2020

Co-Founder/Investor at Prisma Salud S.A.

Aug 2016 - Jul 2020

Secondary Counselor, Director of Testing at Magen David Academy

Jan 2014 - Jan 2017

Head of Gifted and Talented; University Counselor at Tanglin Trust School

Jan 2011 - Jan 2014

HS Counselor at Singapore American School

Jan 2006 - Jun 2011

Principal at The Fulton School

Jan 2003 - Jan 2006

College Counselor; Mod Langs Dept Chair at John Burroughs School

Jan 1992 - Jan 2003

Master Teacher, Group Leader at Rassias Language Programs

Jun 1998 - Aug 1998

Dean etc. at Concordia Language Villages

Jan 1984 - Jan 1994

Mario Sylvander started working in 1984, then the employee has changed 11 companies and 11 jobs. On average, Mario Sylvander works for one company for 4 years 6 months.

Mario is proficient in English, French, and German. Their professional focus is Accreditation, Admissions, and B2C Marketing across 3 core areas.

Mario holds THE Counsellor Accreditation Programme, Marketing to Humans, and Certificate of International School Leadership certifications and has been awarded FULBRIGHT MEMORIAL FUND SCHOLAR, Japan and Klingenstein Fellow, Teachers College, Columbia University

Education

EdD at UCL Institute of Education

M.A. at Washington University in St. Louis

B.A. at Beloit College

Lund University

Université Grenoble Alpes

Fellow Klingenstein Institute at Teachers College, Columbia University

Frequently Asked Questions

What is Mario Sylvander's email address?

SignalHire found verified email addresses for Mario Sylvander, both business and personal. Their business email is m*************r@ykpaoschool.cn, and personal emails include m*************r@gmail.com.

What is Mario Sylvander's phone number?

SignalHire found multiple verified phone numbers for Mario Sylvander: +1-520-***-**30, +1-520-***-**14, and +1-909-***-**91.

How do I contact Mario Sylvander at 3Dethos Inc?

You can reach Mario Sylvander through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Mario Sylvander's professional background?

Mario Sylvander has 42 years of professional experience. They have held roles including Director of Higher Education and Careers , Director of Careers and University Counseling, and Head of Secondary, College Counselor, TOK Teacher at companies such as Wellington College International Hangzhou, YK Pao School, and Boston School International - Panama. Their education includes EdD from UCL Institute of Education, and M.A. from Washington University in St. Louis.

Is Mario Sylvander's contact information up to date?

Yes. Mario Sylvander's SignalHire profile was last updated on 3 September 2026, reflecting their current position as Co-founder at 3Dethos Inc in Lewes, United States.

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