British media reported 167 employees were made redundant as a result of the club being placed into administration, including players and coaching staff.
"Wasps Holdings Limited was placed into Administration on 17 October 2022 and immediately ceased to trade," Wasps said in a statement.
"The affairs, business and property... are being managed by Andrew Martin Sheridan and Rajnesh Mittal of FRP who were appointed Joint Administrators. The Joint Administrators act as agents of the Company and without personal liability."
The former Premiership and European champions had filed a notice in the High Court last month stating their intention to appoint an administrator to secure their future.
The club withdrew the men's team ahead of the weekend's fixture against Exeter Chiefs, which led to the RFU's Club Financial Viability Group suspending the club.
RFU regulations state that a club placed in administration during the season will be relegated for the following campaign.
Premiership club Worcester Warriors went into administration last month after being suspended from all competitions when they failed to meet a deadline to prove they could operate amid their financial difficulties.
