A landmark in the history of VIANEX was the acquisition by VIANEX SA of PHARMANEL SA, which was founded in 1991 and employs 48 persons, which was announced in the summer of 2019.

In 2004, Dimitris Giannakopoulos became the first Vice President, and in January 2012 he became Deputy CEO of VIANEX. In 2019, he was appointed President and CEO of VIANEX.

Dimitris Giannakopoulos took the reins of the company from his father Paul officially in January 2012 when he also became deputy CEO, in addition to being the Vice Chairman of the BoD of VIANEX.

Despite the economic crisis, VIANEX did not take any layoffs or wage cuts. The economic size of VIANEX has decreased, but «its employees have supported the company and have contributed over recent years to the achievement of high profit. It is now our duty, as management, regardless of economic performance to support our people», Dimitris Giannakopoulos had said in 2012

In 2012, Dimitris Giannakopoulos took charge of Panathinaikos B.C., after his father, Pavlos, and his uncle, Thanasis, who managed the club before him.

The new era of the company under the leadership of Dimitris Giannakopoulos was associated with increased outreach and conclusion of important agreements, be them new ones or extension of existing ones. “I handed over the reins of the largest Greek pharmaceutical industry in the country and I’m sure that one day he will also make it the largest one abroad” stated Paul Giannakopoulos in July 2013, on the occasion of the announcement of the collaboration between VIANEX and Eli Lilly, for the production of the injectable antibiotic vancomycin at the facilities of VIANEX and its 100% export in the Chinese market.

During his Presidency, the team won two consecutive Greek doubles (Greek Basket League championship and Greek Cup). However, in December 2014, he resigned from the club’s President position, giving his seat to Manos Papadopoulos. He claimed to have been forced to proceed to such a move because of the constant sanctions and fines imposed on the club by the Greek State. Since 2018 the Pavlos Giannakopoulos tournament is organized annually honoring Pavlos and Thanasis contribution

In 2016 Giannakopoulos Group and Papazoglou Group acquired 50-50 of Superfoods, a Greek company of food supplements and natural health products.

In June 2018 he was elected President of Panathinaikos Athletic Club. He served the position for two years.

In addition, in 2019 VIANEX fully takes over distribution and promotion of the MSD cardiometabolic product portfolio.

The 2019 turnover of VIANEX Group was 302.3 million Euros.

In 2019 the company made a donation to the Oncology Hospital “St. Savvas” for the electronic control system of the PET-CT scanner.