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ISA Audit provides auditing, accounting and consulting services focused on the development of the potential of your business.

The company provides a service in accordance with the established international practices and under the laws of the Republic of Bulgaria.

ISA Audit is one of the most progressive firms in the country today, with leadership in the provision of multi-disciplinary services in the following areas:

Audit & Assurance

  • Financial Statements Audit
  • Review Engagements
  • Assurance services
  • Special purpose audits, incl. verification of expenses under projects financed by either EU or other international financing authority

Tax consulting

  • Corporate tax planning
  • International tax planning
  • Personal tax planning
  • Personal wealth management
  • Transfer pricing


  • Accounting & Bookkeeping
  • Payroll
  • Annual tax returns & interim and annual financial statements
  • Special purpose financial statements

Consulting Services

  • Management Consulting
  • Financial Advisory
  • Performance Efficiency
  • Production and Operation Consulting
  • Public Sector Consulting
  • HR Audit and Advisory
  • IT Audit and Penetration Testing

Transaction Services

  • Transaction support
  • Due Diligence
  • Capital markets
  • Mergers and acquisitions
  • Disposals
  • Deal origination

IT Audit & Advisory

IT Audit & Advisory
  • Penetration testing;
  • Information security management;
  • Incident Response
  • Business continuity planning;
  • IT security audit;
  • Compliance Readiness

HR Audit & Advisory

  • Recruitment;
  • HR Consulting, incl.:
  • Staff management and development
  • Strategic planning and organizational development
  • HR audit
  • Career Counselling;
  • Tailor-made Training and Assessment

Legal Services

  • Company incorporation & Domiciliation;
  • Company restructuring;
  • Mergers & Acquisitions;
  • Trade Law;
  • Labor Law;
  • Tax Law;
  • Licensing;
  • Other legal matters.