Shakespeare's writing ability was already well-established before he was invited to become one of the charter members of the Lord Chamberlain's Men. In all likelihood, that was an important reason to include him as a sharer. Therefore we can assume that Shakespeare began writing for the Lord Chamberlain's Men from the moment it was formed in 1594.
Lord Chamberlains Men
He joined the Lord Chamberlains men which later changed their name to the Kings Men.
They were the acting company with which he was associated for nearly twenty years.
Chamberlains men were the actors, so they would play the nomal plays Shakespeare suggested. Shakespeare also sort of ushered in the Globe Theatre with his writings.
Chamberlains men were the actors, so they would play the nomal plays Shakespeare suggested. Shakespeare also sort of ushered in the Globe theatre with his writings.
The Lord Chamberlain's Men were the acting company which William Shakespeare belonged to. He performed with them, and his plays were the property of the company. The connection of the company with Shakespeare is what makes it significant.
There is no hard evidence to prove which companies Shakespeare worked with prior to helping to found The Lord Chamberlain's Men. The ususal suspects are Queen Elizabeth's Men, Pembroke's Men, Derby's Men, and Strange's Men, but that is just surmise.
The acting company to which Shakespeare belonged for most of his working life was called The Lord Chamberlain's Men from 1594-1603, and The King's Men after that. Shakespeare was not the troupe's leader, but rather a partner.
Queen Elizabeth I supported the Chamberlains Men acting company, and King James I supported the Kings Men acting company.
The owners of the Globe theatre were all members of the Lord Chamberlain's Men, including Richard and Cuthbert Burbage and William Shakespeare.
From 1594 on, Shakespeare performed with and wrote for the Lord Chamberlain's Men who in 1603 became the King's Men. Prior to 1594, he may have worked with one or more of the half dozen or so licensced companies: Pembroke's Men, Derby's Men, Strange's Men, or Queen Elizabeth's Men.
Shakespeare did not make the change. Even if the company could have the right to change the name, Shakespeare did not have the right to speak for the company--Richard Burbage was its leader not Shakespeare. The name was changed by King James I. When he came to the throne, he took over patronage of the company. When the patron changed, the name changed.