Literary agency David Higham will incorporate Toby Eady Associates, following an acquisition of the business.
Toby Eady Associates was set up by Eady in 1968, and represents authors including Bernard Cornwell, Rachel Seiffert and John Carey.
Under the new arrangement, Eady will continue to work independently, looking after English-language rights to his authors' work, while utilising David Higham's resources in film, TV and translation markets.
David Higham m.d. Anthony Goff said: "We are delighted to be joining forces with Toby. With his international perspective and his knowledge of China in particular, he has been a pioneer in the agenting world and we are excited by the opportunity to work with him and with his wonderful stable of writers."
Eady said the deal "eliminates uncertainty for the future".
He said: "David Higham is a very successful and professional agency, which continues to care about writers, and as such felt the perfect home for the authors I have nurtured over forty years. I am delighted we have settled on a formula that eliminates uncertainty for the future and means my authors will be able to avail themselves of the skills and attentions of David Higham’s excellent team."