- Inland Revenue Authority of Singapore (IRAS)
 - Registry of Companies and Businesses
 - Singapore Immigration & Registration
 - Singapore Government
 - Spring Singapore
 - PSB Corporation
 - PSB certification
 - Economic Development Board
 - IE Singapore
 - Central Provident Fund (CPF) board
 - Singapore Chinese Chamber of Commerce & Industry SCCCI
 - Spirit of Enterprise
 - Association of Property & Facility Managers
 - Singapore Institute of Surveyors and Valuers
 - Accounting Directory & Information on the web
 
