TORONTO, ON — Student Transportation of America, Ltd., (TSX: STB.UN) today announced
that its Chairman and CEO, Denis Gallagher, will make a presentation at the CIBC World
Markets Income Fund Conference in Toronto on September 7, 2005 at 3:50 p.m. EDT.

Investors are invited to listen to a live webcast of the event at www.sta-ips.com in the
“presentations” section. A replay of the presentation will be available after September 12, 2005.

The Issuer is the fifth-largest provider of school bus transportation services in North America,
conducting operations through local operating subsidiaries. The Issuer has become a leading
school bus transportation company by aggregating operations through the consolidation of
existing providers and conversion of in-house operations and currently operates more than 3,000
school vehicles in North America. For more information, please visit www.sta-ips.com.

This news release contains “forward-looking statements” within the meaning of applicable
securities laws. These statements concern anticipated future events, results, circumstances,
performance or expectations that are not historical facts. These statements are not guarantees of future performance and are subject to numerous risks and uncertainties that can affect our actual results and could cause our actual results to differ materially from those expressed or implied in any forward-looking statement made by us or on our behalf. These statements are made as of the date of this news release and, except as required by applicable law, we undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.