Leinonen Bulgaria with ISO 9001:2015

We are proud to announce Leinonen Bulgaria accounting, payroll and tax compliance services certification under the latest edition of the international quality management standards ISO 9001:2015. The certificate was issued by Bureau Veritas on 25th of August 2016. Thus Leinonen became one of the first certified under the new standards company in Bulgaria. We have achieved it by combining the process approach with risk-based thinking, and employing the Plan-Do-Check-Act cycle at all levels in the organization.

Heretofore Leinonen was assessed with the previous edition of the standard ISO 9001:2008.    

We follow our aim to deliver constantly highest quality standard services to our clients.

Recent Posts

The Qualified Electronic Signature (QES) System in Bulgaria - Leinonen
3 days ago

The Qualified Electronic Signature (QES) System in Bulgaria: A Guide for Businesses

Bulgaria remains one of the more attractive destinations in the EU for setting up a business, with a flat 10% corporate tax rate and a…

Continue reading
E-Invoicing in Bulgaria - Leinonen
4 days ago

E-Invoicing in Bulgaria in 2026: What Businesses Need to Know

Electronic invoicing continues to reshape accounting practice across Europe, and Bulgaria is now moving from a largely voluntary system to one with clear mandatory milestones.…

Continue reading
July 6, 2026

Electronic Employment Documents in Bulgaria

Bulgaria has largely digitalised employment records and introduced a mandatory electronic employment register, while still allowing employers to keep personnel files on paper if they…

Continue reading