Francisco de ELZABURU y VIZCARRONDO
- Member of the Executive Committee of the AIPPI for Spain from 1897, the year of its founding.
- Founder of the Spanish Group of the AIPPI in 1904.
- Founder of the Spanish Association of Industrial Property Agents (forerunner of today's Official Association of Spanish Industrial Property Attorneys) in 1907.
- Spain's correspondent for the International Bureau (BIRPI) in Geneva from 1895.
- The Firm's Managing Director.