Mark Sim: Email & Phone Number

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CEO - Founder at Whitney Technology|Santa Monica, California, United States

Position:

CEO - Founder at Whitney Technology

Location:

Santa Monica, California, United States

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Last updated: 2026-07-31

Updated: 2026-07-31

Found email addresses for Mark Sim:

Business emails:

m**k@whitneytek.com,

m**m@park-sim.com,

m******m@moopon.us

Personal emails:

u*****g@yahoo.com

Found phones for Mark Sim:

+1-480-***-**57,

+1-205-***-**73,

+1-480-***-**09,

+1-205-***-**45

A different Mark Sim?

Work Experience 29 years

CEO - Founder at Whitney Technology

Jan 2017 - Current

CEO at Gotokki

Aug 2011 - Apr 2016

Partner at Albatross Innovations, LLC

Jul 2007 - Dec 2015

Founding Partner at OnStratus

Jan 2011 - Aug 2011

Business Director at Patman Meat Group

Jan 2007 - Jun 2008

Hospital Representative at Merck

May 2001 - Jan 2007

Project Manager at ARC Designs

Jun 1998 - May 2001

Science Teacher at Fairfax High School

Sep 1997 - Jun 1998

Mark Sim started working in 1997, then the employee has changed 7 companies and 7 jobs. On average, Mark Sim works for one company for 4 years 3 months.

Mark is proficient in English and Korean. Their professional focus is Analysis, Budgeting, and Budgets across 3 core areas.

Education

MBA at USC Marshall School of Business

BS at UCLA

Frequently Asked Questions

What is Mark Sim's email address?

SignalHire found verified email addresses for Mark Sim, both business and personal. Their business email is m**k@whitneytek.com, and personal emails include u*****g@yahoo.com.

What is Mark Sim's phone number?

SignalHire found multiple verified phone numbers for Mark Sim: +1-480-***-**57, +1-205-***-**73, and +1-480-***-**09.

How do I contact Mark Sim at Whitney Technology?

You can reach Mark Sim 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 Mark Sim's professional background?

Mark Sim has 29 years of professional experience. They have held roles including CEO, Partner, and Founding Partner at companies such as Gotokki, Albatross Innovations, LLC, and OnStratus. Their education includes MBA from USC Marshall School of Business, and BS from UCLA.

Is Mark Sim's contact information up to date?

Yes. Mark Sim's SignalHire profile was last updated on 31 July 2026, reflecting their current position as CEO - Founder at Whitney Technology in Santa Monica, CA, United States.

Mark Sim Namesakes

Name

Company

Position

Mark Sim

United States Air Force

Electrical Systems

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Mark Sim

HDI Global SE

Senior Risk Engineer

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Mark Sim

A W Edwards

Design Manager

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