GC Çeviri | Dil Hizmetleri provides translation and language services consultancy primarily in the legal field as well as financial, technical, marketing and advertising fields (in Turkish-English-French languages) with its team consisting of lawyers having project experience for many years in the fields of corporate law, commercial law, mergers and acquisitions, project finance, labor law, patent and trademark law.

Gökseli Cengiz, following her education in Lycée Français Notre Dame de Sion between 2002-2007, graduated from Koc University Law Faculty in 2012. During her law education, she completed International Law Program organized in partnership of Université Paris 1 Panthéon-Sorbonne and Cornell University in 2010. She graduated from Law Faculty in 3.5 years. 
In 2009, she started working as a freelance translator with several translation firms and managed the freelance translation jobs until she establishes GC Çeviri | Dil Hizmetleri. 
She started her advocacy career in 2012 at local and international law firms, and after having project experience in lots of legal areas, she established GC Çeviri | Dil Hizmetleri in 2022 to provide professional translation and language services consultancy.