C/T Group

The C/T Group, also referred to as Crosby Textor, is an Australian lobbying firm, private investigations firm, and political consultancy. The firm provides social research, corporate intelligence corporate strategy and political polling services to its clients.

The firm has historically been associated with mainstream right-wing political parties across the world, and has a particularly strong association with the Liberal Party of Australia. In May 2025, CT Group cofounder Mark Textor was described as "Australia's greatest ever political strategist...advising the Prime Ministers of four countries at once". In 2024, an investigation by the Financial Times has exposed that CT Group has provided forged or faked banking records for multiple litigations ongoing in the UK courts, where it was alleged that CT undertook 'industrial-scale forgery" and 'apparent criminality'.

Crosby Textor was founded by Mark Textor and Lynton Crosby. The firm provides its services throughout the world, but its most notable markets are that of Canada, Australia, Britain, Africa, Italy and New Zealand.