[7] In the late 1980s Avdeev started his first business, selling radio components and decoders for TV sets.

[13] In 2013, Forbes included Avdeev with the net worth of $1.4 billion into the lists of European and global billionaires for the first time.

[14][2] In 2014, Adveev’s holding company Garden Hills consolidated more than 98% of Veropharm, one of the largest drug makers in Russia.

[17] Roman Avdeev in October 2024 said  that he had sold his  stake in the Rossium Group holding and that he no longer held any assets in Russia and would be spending more time with his many children.

[27] In 2016, Avdeev co-authored Caravan of happy stories (Russian: Караван счастливых историй) book about adoptive families.

[28] As of 2013, Adveev and Sulaiman Abdul Aziz Al Rajhi were two members of Forbes billionaires list with 23 children.