Gargoles Training and Consultancy Services, OPC (GTCSO) was established last March 2020 as a spin-off from the Gargoles Law Office to segregate tax seminars that they were conducting since 2013 from their tax lawyering operations.

The company caters to individuals and businesses by providing training or seminars on taxation, accounting and corporate law.  It is spearheaded by Atty. Nelson S. Gargoles, CPA who established Gargoles Law Office in 2013 specializing in handling tax assessment cases, rendering opinion, application for BIR Ruling, etc. Atty. Gargoles is a former BIR Examiner for almost 15 years and former Tax Senior Manager of Punongbayan and Araullo.

The company cares largely about the ongoing advancement of knowledge, competence, and integrity in a given field of work by providing self-help seminars for the general public and in-house training for corporate clients. GTSCO also publishes and distributes books related to taxation and business primarily authored by its President Atty. Gargoles.