Mr. Sulaiman bin Pg Atok was born on 10 June 1953 in Lahad Datu, Sabah. He is married to Puan Shamliah Mohd Molud and they have five children.

Sulaiman is currently a member of the Sabah United Party (Parti Bersatu Sabah) Supreme Council and heads the PBS Lahad Datu Division. He holds a Diploma in Development Administration from the South Devon College of Arts and Technology, Torquay, England.

He started work as a Clerk with the State Treasury Department in 1975 and was promoted as the Chief Clerk in 1978. From 1981 until 1995, he served as Assistant Rural District Officer for Lahad Datu, Nabawan and Keningau. He was appointed to act on the post of Senior Administrative Officer in the Keningau District Office from 1989 until 1990.

From 1995 until 1997, he was appointed to act as Assistant Administrative Officer in the Chief Minister's Department and from 1997 until 1999 in the Training and Scholarship Division of the State Establishment Department before venturing into full-time politics.

For his contributions to the State, he was awarded the Bintang Setia Kinabalu (BSK) medal by the Yang diPertua Negeri Sabah.