The researcher determines the factors that motivate corporate decision makers in Bangkok to pursue partnership with NGOs, by using the Triple Bottom Line Theory which main construct is about sustainability development and provides a framework for measuring the performance of the business and the success of organization using three dimensions - economic, social and environmental. Specifically, it identified that: (1) economic factors of DJSI and GRI does not directly influence strategic partner of companies in Bangkok with NGOs; (2) social factors of DJSI and GRI does not directly influence strategic partner of companies in Bangkok with NGOs; (3) environment factors of DJSI and GRI directly influence strategic partner of companies in Bangkok with NGOs.