Google's parent company Alphabet is investigating how case managers handled sexual harassment and abuse allegations.
There are lawsuits filed by shareholders filed earlier this year in the way Google allegedly dealt with allegations of abuse.
The Board of Directors of the company has set up a "special committee" to assess shareholder claims regarding past employment in the workplace.
Alphabet is also working with a law firm on the probe, which it launched earlier this year.
The way Google handled the events that were requested by staff demonstrations, leading to thousands leaving their offices in coordinated protests late in 201
At that time, Google boss Sundar Pichai apologized for the way he had previously appeared due to allegations of inappropriate behavior and promised improvements.
"In early 2019, Alphabet's Board formed a special litigation committee to address shareholders' claims in various lawsuits related to prior workplace behavior," a company spokesman said.
In January, it emerged that Alphabet was facing legal action in the way it allegedly handled the sexual misconduct allegations against two top executives.
Two lawsuits have been brought by long-time sha rights holders who accuse the company's board of directors of being involved in trying to cover up the claims.
Both legal requirements want Alphabet to do a better job of uncovering and responding to wrong behavior.
The legal action is believed to have been prompted by the way Google handled allegations of misconduct against former Android boss Andy Rubin and former search manager Amit Singhal.
Both men are believed to have received large payouts after being investigated over the allegations. Neither now works for Google.
Hr. Rubin and Mr Singhal deny the allegations.