Mo Farah is among 114 athletes offered places on British Athletics' World Class Programme for 2018-19.
Dina Asher-Smith, Zharnel Hughes and Laura Muir are also included in the top tier of the programme - Olympic Podium.
Long jumper Shara Proctor, who won bronze at the Commonwealth Games and European Championships this year, has been added to Olympic Podium group.
Farah is in again after his switch to the marathon last year. He won the Chicago Marathon in October.
He has declared his intention to run at the Tokyo Olympics in 2020.
British Athletics performance director Neil Black said: "Mo has had a fantastic first year concentrating on road racing as we knew he would. His performances in London and Chicago were what we expected of a truly world class athlete.
"We will continue to support Mo in his ambitions and we look forward to potentially welcoming him onto the British team for the IAAF World Championships in 2019 as part of his preparations for the marathon at Tokyo 2020."
Membership onto the World Class Programme for 2018-19 is based upon an athletes' potential to win a medal at Tokyo 2020 or Paris 2024.
There are three levels of membership of the WCP, split into five sections - Olympic Podium, Paralympic Podium, Olympic Podium Potential, Paralympic Podium Potential and Olympic Relays.