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Global reach

  • International expertise and services to support cross-border transactions
  • A robust network of relationships
  • Helping to close deals and solve problems

National strength

  • Present on the market for over 20 years
  • Dedicated resources and nationwide capabilities
  • One of the largest professional services firm focused on the middle market
  • Deep understanding of unique needs of middle-market companies

Local touch

  • Significant partner and managing director attention
  • Industry knowledge and enterprise-wide experience
  • Dedicated professionals with solid professional experience
  • Quick response to resolving issues and meeting deadlines

About us

A professional accounting team, with international experience.

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 has vast experience in audit and consulting of different types of companies: national companies, including private such or listed on the stock exchange; companies owned by the State or by municipalities; subsidiaries of multinational companies registered in Bulgaria, pension funds, financial credit institutions, non for profit organizations, etc.

Our professional expertise covers businesses in different kinds of industries such as: mining, energy industry, retail, tourism and hospitality; media; financial services; agriculture; production; real estate, etc.




ISA Audit operates on the Bulgarian market more than 16 years and and over the time has proved its competence, efficiency, and professionalism. In 2008 the company introduced the quality control system ISO 9001:2008 and is certified by DEKRA Certification GmbH, Stuttgart, Germany. Since 25 September 2015 the system is renewed in accordance with the requirements of the new standard ISO 9001:2015.

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: