Branson's space ventures compete with those of fellow billionaires Elon Musk and Jeff Bezos in the commercially led space exploration industry.
Virgin Orbit said in August it had hired LionTree Advisors LLC and Perella Weinberg Partners LP to look at potential financial transactions. Those banks are helping it raise between $150 million to $200 million by as early as the end of the year for capital expenditure and to fund satellite launches, the Journal said.
Virgin Orbit did not immediately respond to a request for comment on the report.
(Reporting by Rama Venkat in Bengaluru; Editing by William Mallard)