Boris Lelchitski is the founder and CEO of Sports International Group (SIG), a family-led basketball agency based in Gaithersburg, Maryland. A former Russian coach, including time with Spartak, Lelchitski founded SIG in 1996 and became one of the most influential agents in women’s basketball while helping expand the firm into men’s basketball, FIBA, coaching, NIL and marketing representation. SIG represents elite WNBA, NBA, international and collegiate talent, with a reputation for cross-border player placement, overseas opportunities, draft preparation, contract negotiation and long-term career management.