Baslerstrasse 30
Switzerland, CH-4600
 +41 (0)62 207 30 40
 +41 (0)62 212 77 84
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As of October 2014, SUDAN PARTNER AG is now SOLIDIS. 

We provide services in three main fields of activity: auditing, tax consulting and trust mandates.  We offer personal service to our clients and specialize in medium-sized family-owned

The core service of our firm is auditing public and private companies, groups, cooperatives and trusts. The close merging of auditing and tax consulting leads to remarkable tax reductions for our clients.

We specialize in corporate taxation, prepare tax reports and liaise with tax authorities as necessary to insure compliance with governing tax authorities. We also provide tax returns for business owners and their families.

Additionally, we specialize in carrying out statutory audits of annual accounts, using advanced audit methodology. Our work in the auditing and the tax consulting fields has resulted in our ability to provide trust mandates for our clients. 

Audit Services

  • Audits of financial statements
  • Staff benefit/pension schemes
  • Consolidation
  • Special audits

Tax Consulting

  • Direct tax – legal entities
  • Direct tax – natural persons
  • Value added tax
  • International tax know-how

Trust Mandates

  • Accounting / financial accounting
  • Payroll processing
  • Management consulting
  • Company valuation
  • Asset management
  • Mandates to execute wills