Ian Quartermaine

With vast experience in the international travel and event industry, Ian has a proven record in startup companies and opening new global markets. He is looking forward to sharing his insight and expertise with you.

  • Title: Dezika Founder and Co-Owner
  • Experience: MeetingsIn, HelmsBriscoe, GetThere, Discover the World Marketing and British Airways
  • Years in Industry: 25+





Jeffrey Devine

Having been at the forefront of developing and executing strategic convention and trade show management models for multi-national corporations and associations for over 25 years, Jeff brings a wealth of  knowledge and experience to Dezika.

  • Title: Dezika Founder and Co-Owner
  • Experience: Conference Direct, Smith Bucklin, Marriott Corporation
  • Years in Industry: 25+
  • Affiliations: MPI and ASAE




Holly Mechsner

With a broad background in corporate finance, foreign languages and hospitality, Holly contributes a dynamic mix of global awareness, business sense and people skills to the Dezika team.

  • Title: Director of Interactive Communication
  • Experience: Anywhere, LLC, Canada Arizona Business Council
  • Years in Industry: 12+
  • Affiliations: Canada Arizona Business Council



Rachelle WebsiteRachelle Jailer Valladares

With a long career running meetings and events across the globe for an array of  non-profit organizations, political parties and NGOs, Rachelle’s experience adds key value to the Dezika team.

  • Title: Regional Director, UK & Europe
  • Experience: Helms Briscoe, HPN Global and Venue Guru International
  • Years in Industry: 25+




Board of Directors


Mark-SquareMark Lewington

Mark has been the CEO for CTS Systems Inc for the past 15 years.  Prior to this he served as a consultant with Pegasus Solutions where he worked closely with the Financial Services and Account Management teams. Before joining Pegasus, Mark was Vice President, Account Management for Net Trans Services as they launched into the U.S. market. He started his business career working for Hilton International, enjoying a 6-year tenure with the company in various Finance positions, working in the United Kingdom, France and Asia.
He currently holds a seat on the Corporate Advisory Council at ASTA (American Society of Travel Agents), is an executive board member of ENABLE of Georgia, a charity for special needs and an ambassador for No Longer Bound, a GA Regeneration Centre. Mark is a native of the United Kingdom and holds a Business Finance Degree from the University of Hertfordshire.




Carl-SquareCarl Roberts

A graduate of Texas Tech University, Carl founded CTS Systems in 1990 to help travel agencies collect outstanding commissions. Since then, Carl’s vision and management skills have helped transform CTS beyond a collection agency into a complete travel industry data management service. Carl has pioneered the development of commission reconciliation, reporting, and collection systems that serve the world’s top travel management companies. Carl’s vision and commitments to innovation and customer responsiveness have been essential ingredients in CTS’ endurance and success.