Since its inception, the Public Accounting Firm Drs. Bambang Mudjiono & Widiarto has audited companies in various fields, including the following:

1. Agriculture, Plantation, Forestry, Livestock, Marine and Fisheries
2. Property and Construction
3. Processing/Manufacturing Industry
4. Mining and Energy
5. Trade and Services
6. Information, Transportation and Telecommunications
7. Financial Sector – Banking
8. Financial Sector – Insurance and Pension Funds
9. Financial Sector – Other
10. Other Industries
11. Governments, International Agencies and Non-Profit Organizations