This initiative -- called 'Congressional Black Caucus' -- is part of a campaign called 'Tech2020', which aims to increase the representation of African-American workers at all levels of the tech industry, the report said.
Lawmakers launched this initiative in 2015 and at that time, they even threatened to regulate the tech industry if it failed to improve its hiring practices.
Under the Donald Trump administration, however, it has become more difficult, Lee said.
In an interview, Lee said she would also prod Facebook and Twitter to address racist content that has been spread on their platforms, "particularly in light of reports that Russian agents -- in a bid to stir political unrest in the US - shared such messages on social media during the 2016 presidential election".
"They have got to understand, they've got to move quicker," Lee was quoted as saying.
"And they've got to figure out a way to stop allowing these ads that really undermine our elections and create havoc, really, in communities by trying to create division and hostility and hatred," she added.
The report said that at Facebook, roughly half of the team in the US is white. Black engineers only account for three per cent of the social giant's US payroll.
At Twitter, roughly 57 per cent of its US workforce is white and about three per cent is black, according to its 2016 data.