The best GSA for all companies
in the Travel and Hospitality Industry
ITSC stands for International Travel Support Center and is a well-known Global Sales Agency (GSA) in the European Travel Industry. ITSC has presence in the Netherlands, Belgium, Luxembourg, Germany, Switzerland and the UK. With a team of strong sales professionals, ITSC represents high quality companies including Marriott Hotels International and Hertz Rent A Car. The focus of ITSC’s associates is to provide sales development, account management and to grow loyalty and revenue. All account managers have a strong knowledge about the travel industry and intermediary market and have a wide sales network. Choosing for ITSC means choosing for commitment, dedication and revenue streams.
We are looking forward to be your partner in Travel!
Our focus areas
Pleased to meet you
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Frank Classen -
Bauke Boogers -
Maarten Pijpers -
Debbie Hendriks -
Robbert-Jan van Zelst -
Kelly Doherty -
Romy van Rooijen -
Basil Lotens -
Leon Mathijssen -
Chia-Chi Shen
Success is a journey, not a destination. Let's travel together!
If you'd like to learn more about ITSC, the associates and the opportunities... be invited to give us a call.
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Frank Classen
Managing Director International Travel Support Center
Being a sailor Frank is always finding a way to adjust the sails in order to move forward. Together with the team, he has been able to realize year-on-year growth for the partners of ITSC. Frank has experience in hopitality, aviation, transport, online and paymentsolutions. Frank leads the ITSC team with a strategic focus and offers a solid base for associates to grow and to accelerate.
With a Bachelor in Economics and a Commercial Director career at Renaissance Hotels and Hertz Rent A Car, Frank has the power and the knowledge to lead the ITSC boat on wild oceans and calm seas.
With a Bachelor in Economics and a Commercial Director career at Renaissance Hotels and Hertz Rent A Car, Frank has the power and the knowledge to lead the ITSC boat on wild oceans and calm seas.
Bauke Boogers
Global Account Director
Already at high school Bauke knew she wanted to work in a dynamic environment with a good mix of sales and travelling. After graduating in tourism management she built up experience in the airline industry before moving into hospitality. Bauke started at ITSC in '98, having the ideal sales role in mind. Nowadays she is managing the Marriott Account at ITSC with a great enthusiasm and passion. When celebrating 15 years with ITSC she felt like it was only the start of so many great years to come. Bauke developed strategic relationships with the key buyers in primary buying locations with the purpose of mapping all revenue streams to grow share and drive revenue and roomnights for Marriott International.
Maarten Pijpers
Director of Sales & Account Management GSA
Maarten Pieter Pijpers is a real sales expert with more than 12 years of experience in different sales areas. Maarten is leading the Hertz Car Rental team, for the business and leisure travel segments via major Travel Management Companies, Tour Operators and Online Partners, focusing on revenue growth, building and maintaining strong customer relationships and getting the most ideal product from our customer Hertz to sell in the markets. Maarten is very ambitious and sets the standards high. He finds a solution to every problem and doesn’t take no for an answer.
Debbie Hendriks
Account Manager
With a background in the leisure travel market and a wide experience managing key accounts, Debbie is a valuable player in the ITSC field. Debbie manages a large portfolio of Travel Management Companies (TMC’s) and is a travel agent training specialist. Marketing planning, developing TMC incentives, hosting workshops and presentations, organizing educationals and monitoring the bookings of the client portfolio are Debbie’s main strengths and responsibilities.
Robbert-Jan van Zelst
Global Account Director
On June 1st 2016 Robbert-Jan has started in the Global Account Manager role at ITSC, representing Marriott Hotels International for the Corporate Accounts in the Benelux market.
Robbert-Jan has proven to be a successful player in the Hotel Sales environment with a 5-year experience at Marriott.
His enthusiasm, drive, loyalty and sense of humor are contributing to the pleasant relationships he has built with both internal and external stakeholders.
" I can’t wait to continue building on existing relationships and to further develop the client portfolio. The professional and going above-and beyond mentality of the ITSC perfectly matches my work ethics and I’m excited to be part of the team and the Marriott Global Sales Organization now".
Robbert-Jan has proven to be a successful player in the Hotel Sales environment with a 5-year experience at Marriott.
His enthusiasm, drive, loyalty and sense of humor are contributing to the pleasant relationships he has built with both internal and external stakeholders.
" I can’t wait to continue building on existing relationships and to further develop the client portfolio. The professional and going above-and beyond mentality of the ITSC perfectly matches my work ethics and I’m excited to be part of the team and the Marriott Global Sales Organization now".
Kelly Doherty
Sales & Account Manager
With a background in both the hospitality,- and airline industry, Kelly brings a wealth of knowledge to the UK team. Kelly is a people-person who aims to build strong business relations with her clients and industry partners. Kelly manages a large portfolio of Travel Management Companies (TMC’s) and has proven to be successful in this intermediary environment. Marketing planning, developing TMC incentives, hosting workshops and presentations and monitoring the bookings of the client portfolio are Kelly’s key focus area.
Romy van Rooijen
Account Manager
After she finished her Tourism Management study, Romy started her career for one year in the recruitment as an account manager. During this year she developed her sales and communication skills. With a passion for the hospitality industry, she applied for the role Global Account Manager for Marriott International at ITSC. Romy is a true team player and prefers working in a dynamic environment. She manages a large portfolio of Travel Management Companies (TMC’s) and is a travel agent training specialist. Marketing planning, developing TMC incentives, hosting workshops and presentations, organizing educationals and monitoring the bookings of the client portfolio are Romy’s main strengths and responsibilities. She manages her job with a lot of enthusiasm.
Basil Lotens
Global Sales Manager Groups
Basil Lotens is part of our ITSC team in the position of Global Sales Manager, Groups for GSA Benelux at ITSC. In this role, Basil is focussing on identifying and closing group opportunities whilst increasing preference and loyalty to Marriott.
With a bachelor degree in Hotel Management from the Erasmus University College Brussels, Basil started his career as a trainee in 2011 at the Sheraton Brussels Airport Hotel before joining the Starwood Brussels Complex Sales Team . In 2015 Basil moved to Qatar to become a Business Development Manager at the Westin Doha Hotel & Spa. For the past two years Basil has been based in Paris as a Multi-Property Account Manager for the Prince de Galles, a Luxury Collection Hotel & W Paris-Opéra. Basil can be best described as a true sales professional who is driven to uncover new group business and grow group share for our hotels.
With a bachelor degree in Hotel Management from the Erasmus University College Brussels, Basil started his career as a trainee in 2011 at the Sheraton Brussels Airport Hotel before joining the Starwood Brussels Complex Sales Team . In 2015 Basil moved to Qatar to become a Business Development Manager at the Westin Doha Hotel & Spa. For the past two years Basil has been based in Paris as a Multi-Property Account Manager for the Prince de Galles, a Luxury Collection Hotel & W Paris-Opéra. Basil can be best described as a true sales professional who is driven to uncover new group business and grow group share for our hotels.
Leon Mathijssen
Account Manager Hertz Germany & Switzerland
After he finished his bachelor study German, Geographic and Tourism, Leon started his career at NBBS Reizen as a Travel agent, to soon expand his role as Location Manager of 2 successful stores. During this period Leon travelled a lot all over the World to explore, working in leisure was a pleasure!
After that, Leon worked as Unit Manager for BCD Travel where he set-up a VIP desk especially for the supervisory board and Board Members. After 7 years of working in Operations Leon moved to a new role as Account Manager were he found new challenges in Commerce. Being 8 years in this role, it was time to chase a dream to set-up his own company in the catering industry, to finally return in the Travel Industry, in which he has lost his heart!
His main focus at ITSC will be to represent and extend the Hertz Car Rental Business for both Corporate and Leisure Companies in Germany and Switzerland, and building en strengthen the relationships.
After that, Leon worked as Unit Manager for BCD Travel where he set-up a VIP desk especially for the supervisory board and Board Members. After 7 years of working in Operations Leon moved to a new role as Account Manager were he found new challenges in Commerce. Being 8 years in this role, it was time to chase a dream to set-up his own company in the catering industry, to finally return in the Travel Industry, in which he has lost his heart!
His main focus at ITSC will be to represent and extend the Hertz Car Rental Business for both Corporate and Leisure Companies in Germany and Switzerland, and building en strengthen the relationships.
Chia-Chi Shen
Business Data Analyst
Being part of the Hertz Car Rental team, Chia-Chi focuses on analyzing and visualizing commercial performance, translating complex business issues into structured data, and optimizing data collecting and reporting processes.
With a master’s degree in Digital Business & Innovation Management at Nyenrode Business University, Chia-Chi started working at ITSC as a Business Data analyst in 2021.
Before coming to the Netherlands, she studied Finance and International Business for her bachelor's degree in Taiwan and had three years of experience as an auditor at Deloitte. Having a combined background in finance and digital business, Chia-Chi is passionate about transforming data into meaningful insights. Her detailed-oriented personality and analytical mind add value to increase business performance and efficiency.
With a master’s degree in Digital Business & Innovation Management at Nyenrode Business University, Chia-Chi started working at ITSC as a Business Data analyst in 2021.
Before coming to the Netherlands, she studied Finance and International Business for her bachelor's degree in Taiwan and had three years of experience as an auditor at Deloitte. Having a combined background in finance and digital business, Chia-Chi is passionate about transforming data into meaningful insights. Her detailed-oriented personality and analytical mind add value to increase business performance and efficiency.