It is now a separate company although still a part of the Hitotsubashi Group with Shueisha and Shogakukan as one of the major members of the keiretsu.

In 1975, the firm changed the frequency of their magazine from monthly to semi-monthly; in March, they created their first imprint, Hana to Yume Comics (花とゆめコミックス).

In April 1977, they set up a publication editing department and in July, they began publishing a seasonal magazine titled Bessatsu Hana to Yume (別冊花とゆめ).

In March 1989, they started publishing a seinen manga magazine called Animal House.

Three years after Animal House, they published Moe, a monthly magazine for picture books targeted toward shōjo readers.

The company also began selling their drama CDs under Hakusensha CD Collection (白泉社CDコレクション), abbreviated as HCD.

HanaMaru Black (花丸BLACK), a magazine targeted at readers of yaoi genre started its publication in May 2008.

[7] Source:[8] It was announced at the 2009 Tokyo Game Show press conference that Hakusensha and 11 other publishing companies in Japan (such as Kodansha, Shueisha, Shogakukan, Square Enix, publishers associated with Kadokawa Shoten, Bandai Visual and Futabasha) would provide nearly 100 titles of manga to supply the service in PlayStation Store.

[12] Hakusensha organizes contests to offer aspiring manga artist a professional debut as well to be affiliated with their magazines.