Vietnam Travel Agents request for references

Currently we are working on a project related to Travel Industry wherein one of our client (a Consulting Firm) is looking to get in touch with Travel Agents in Vietnam with proven capabilities in evaluating offerings, commissions , prevalent practices. Some of the major local companies in this space are:

ANEX VIET NAM TRAVEL & TRADING COMPANY
HOANG TRA TRAVEL - HCM
SAIGON GLOBAL TRAVEL
VIETNAMTOURISM HANOI
HAHA TRAVEL
CHUDU24
ODEON TOURISM INTERNATIONAL MALTA LTD
PEGAS MISR VIETNAM TRAVEL

We would request you to provide us with references of any of your contacts who are in this industry and/or might be connected to these kind of companies.  Our client would like to discuss and evaluate the sector from these Experts. 

Look forward to your response.