It is of paramount importance for DA Consulting to have its potential and existing clients to become its long-term business partners. Unlike the traditional software vendors, there exist conflicts between the Sales and Implementation Support teams, as each team has its quota to meet.

It is known that in many cases, the sales team will try to close a contract at the expense of the implementation support team or vice versa. In other cases, the promises made by the sales or implementation support teams are not fulfilled due to staff turnover. In the case of DA Consulting, the sales and support will eventually be owned by Derry; consistency and continuity of services can be assured.

The following are some of the references made by our clients which demonstrates the vision and commitment of DA Consulting to enter into long-term relationship with our clients.


  • Tokai Asia
  • KGI Asia
  • China Trust Commercial Bank (Philippines)
  • Chung Shing Bank (Taiwan)
  • MeesPierson HK (Fortis Bank)
  • Wing Hang Bank
  • American International Assurance Company Ltd
  • Bank of China (HK)



    • Housing Authority (2 years, 20 manyears project)
    • Hospital Authority
    • HK Trade Development Council




    • Shell Hong Kong




    • Joyce Boutique Limited (Financials)
    • New World Cyberbase (Financials)
    • KGI Asia (Financials)
    • The Marketing Store Worldwide (Asia) Ltd. (Financials)
    • KPMG (HR)
    • Companhia de Telecomunicacoes de Macau (Financials,HR and Payroll)
    • Novel Enterprises Ltd/ South Ocean Knitters (Financials) - 150 users
    • Wing Hang Bank (Financials)
    • American International Assurance Company Ltd (HR and Payroll)
    • Bank of China (HK) (HR and Payroll)
    • Hsin Chong Construction/Real Estate Management (Financials)