The participating charities include Scope, the NSPCC, the Scout Association, Girl Guiding UK, The Prince's Trust and NCH.
At the NSPCC, 22 children aged between 14 and 18 from the charity's projects will be quizzing the heads of its main departments and Mary Marsh, the charity's chief executive.
The young people will then work with those departments and will have the opportunity to take part in making decisions on planning policy.
At Scope, seven students from the charity's own education services will take part in managing the charity on Takeover Day. Four will give Scope's board a presentation on issues that are important to them.
Jon Sparkes, chief executive of Scope, said: "We hope that we are able to better serve the needs and desires of young disabled people as a result of what we learn during the day."
The Office of the Children's Commissioner, a national organisation led by Aynsley-Green, changed its name to 11 Million this year (Third Sector, 16 May). The figure refers to the number of children and young people in England. Local police forces, fire and rescue services and local government agencies are among the 400 organisations taking part in Takeover Day, which will happen on 23 November.