Mark: Email & Phone Number

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Co-Founder, COO at KATALOG|New York, New York, United States

Position:

Co-Founder, COO at KATALOG

Location:

New York, New York, United States

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Last updated: 2026-10-27

Updated: 2026-10-27

Found email addresses for Mark:

Business emails:

**@katalog.holdings

Personal emails:

w***@welcomeagency.com,

m***@gmail.com,

w***@theboutiqueworkplace.co,

w***@hotmail.com

Found phones for Mark:

+1-520-***-**90,

+1-520-***-**80,

+1-520-***-**52,

+1-480-***-**11

Prospect analytics

Current work details

DepartmentBanking

Availability

TimezoneEDT

Best time to contact12:00 PM – 4:00 PM

A different Mark?

Work Experience 22 years

Co-Founder, COO at KATALOG

Feb 2025 - Current

President at The Bonaparte Group

Dec 2016 - Current

Client Director at PINK SPARROW

Jul 2023 - Dec 2025

Partner at STUDIO OTTO GROUP

Mar 2018 - Nov 2025

Founder at Welcome Agency

Jan 2013 - Feb 2024

Co-Founder, Executive Rep - LONDON 2012 OLYMPICS at Sports Entertainment Marketing Ltd

Feb 2011 - Dec 2012

VP, Brand & Commercial Strategy at Ventia Ltd.

Aug 2009 - Feb 2011

EU & AUS Marketing Operations Manager at Getty Images

Jan 2004 - Apr 2009

Mark started working in 2004, then the employee has changed 7 companies and 7 jobs. On average, Mark works for one company for 5 years 2 months.

Their professional focus is Advertising, Art Direction, and Brand Awareness across 3 core areas.

Education

Master of Science (MSc) at The London School of Economics and Political Science (LSE)

Bachelor of Arts in Marketing at AAA School of Advertising

Bachelor of Arts at AAA School of Advertising

Frequently Asked Questions

What is Mark's email address?

SignalHire found verified email addresses for Mark, both business and personal. Their business email is **@katalog.holdings, and personal emails include w***@welcomeagency.com, m***@gmail.com, and w***@theboutiqueworkplace.co.

What is Mark's phone number?

SignalHire found multiple verified phone numbers for Mark: +1-520-***-**90, +1-520-***-**80, and +1-520-***-**52.

How do I contact Mark at KATALOG?

You can reach Mark 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's professional background?

Mark has 22 years of professional experience. They have held roles including President, Client Director, and Partner at companies such as The Bonaparte Group, PINK SPARROW, and STUDIO OTTO GROUP. Their education includes Master of Science (MSc) from The London School of Economics and Political Science (LSE), and Bachelor of Arts in Marketing from AAA School of Advertising.

Is Mark's contact information up to date?

Yes. Mark's SignalHire profile was last updated on 27 October 2026, reflecting their current position as Co-Founder, COO at KATALOG.

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Mark Williams

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Mark Williams

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Mark Williams

THE HEROES OF THE WORLD INC.

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