[1][2] The partnership is a collaboration of the 29 municipalities and regions in the Greater Toronto Area, the governments of Ontario and Canada, several not-for-profit organizations, and a number of private sector corporations.

[7] Renato Discenza served from 2002 to 2005,[8] followed by David Gavsie from 2005 to 2007[9] The current chairman is Lou Milrad[10] The GTMA was established as a Public-Private Partnership often known as a PPP.

[12] The GTMA's mission and mandate is to expand the economy of the Greater Toronto Area by raising the profile of the region internationally to attract new investment and employment.

Prospective investors working with the GTMA receive support and guidance from human resource consultants, financial and legal advisors, and commercial/industrial real estate professionals.

[13] In addition, the GTMA regularly hosts events to promote collaboration between various local and international companies, government organizations, foreign consulates and boards of trade.