Lam and his students, which are said to have numbered over 10,000 during his life, are primarily responsible for popularizing the style in the 20th century. Some of his students became among the first actors and stunt people in the fledgling Hong Kong "kung fu" film industry in the 1940s. They included two men who would work as action directors on the Wong Fei-hung films that starred Kwan Tak-hing – Leong Wing-hang and Lau Cham, father of action director and star, Lau Kar-leung. Another student of Lam was Golden Harvest producer Raymond Chow.
The most famous student of Lam Sai Wing and the leader of the Hong Kong Martial Arts Community was Chan Hon Chung (1909-1991), the founding chairman of Hong Kong Chinese Martial arts association  and the only Chinese Martial Artist honored by the Queen during the colonial Hong Kong. Chan's best student Kong Pui Wai is still leading the association.
Lam Sai-wing's kung fu was also continued by his adopted nephew (from same village) and disciple Lam Jo until his recent death, who resided & taught in Hong Kong with his own sons Anthony Lam Chun Fai, Simon Lam Chun Chung and Lam Chun Sing. Simon Lam Chun Chung continues to teach his father's students and new students at Lam Cho's renowned studio in Mong Kok, Hong Kong. Among Lam Jo's senior disciples, Tang Kwok Wah taught in Boston. Among his disciples are amongst others Winchell Ping Chiu Woo (Chiu Mo Kwoon, Boston), Yon Lee[notes 1] (Harvard Tai Chi Tiger Crane Shaolin Cultural Foundation, Shaolin Institute, Quincy), Y.C. Wong (San Francisco), Buck Sam Kong (Kong's Siu Lum Pai Assn., Los Angeles).