Umno veteran Tengku Razaleigh Hamzah has rejected a call to blacklist companies that allegedly sponsored the Bersih movement.

"I don't think that is right," the Gua Musang MP told reporters when met after the launch of a book on a collection of essays, 'The End of UMNO? Essays on Malaysia’s Dominant Party', at the Royal Lake Club in Kuala Lumpur today.

"Anybody can donate to any cause, so long as it does not break any law or the constitution," Tengku Razaleigh said when asked for comment on the call first made by Awang Selamat, believed to be the joint pseudonym of Malay daily Utusan Malaysia's senior editors.