GG Advisory is the strategic advisory practice of Grylls Group. The practice works at board, executive, and ministerial level, across resources, land, decarbonisation, energy, biodiversity, agriculture, and the legal and regulatory frameworks that intersect with them.

Engagements include major project strategy, government and stakeholder engagement, approvals and regulatory pathways, First Nations partnerships, corporate development, and high-level government and policy strategy. The practice has a particular history of engagement on First Nations partnerships and approvals at major project scale.

GG Advisory has operated since 2017. A significant portion of the work is conducted under confidence and is not referenced publicly.

Operating as Attacoorie Pty Ltd. Founded and directed by Brendon Grylls and Susan Grylls.

Downstream Australia is an Australian investor and developer working in nature repair, decarbonisation, and industrial development. The company operates as a principal in
early-stage opportunities across these sectors, taking positions that progress with the projects themselves rather than from an external advisory role.

Downstream Australia is a founding shareholder in Salubris.

Brendon Grylls is a Founder and Director of
Downstream Australia.

Nickol Bay Fertiliser Co partners with Yara Australia to supply liquid nitrogen fertiliser to the irrigated agricultural operations of north-west Western Australia, where intensive farming systems require industrial-grade inputs at the scale and reliability the work demands. The company is headquartered in Karratha and operates across the Pilbara, the Kimberley, and the agricultural regions inland.

Founded by Brendon Grylls, who serves as Director. Susan Grylls is also a Director.

Turftech Robotics is an Australian robotics company applying engineering and innovation to a category long defined by straight-line application. Robotic systems produce complex illustrations, graphic design, and brand activations on sporting and event surfaces at a level of detail that conventional line marking cannot reach.

The technology brings robotic and software engineering to a category that had remained largely unchanged for decades. Turftech designs and builds each system for the surface, the conditions, and the brief.

Turftech works with sporting codes, event organisers, and industry clients across Australia.

Founded in 2026 by Tom Grylls, who serves as Director. Brendon Grylls is also a Director.

JT Grylls and Sons Investments owns and operates Bendicoorie Farms, a broadacre farming and land management operation in the Western Australian wheatbelt at Corrigin. The farm has been in the Grylls family for five generations and remains the family's continuing presence on the land from which the broader enterprise has grown.

Founded and directed by John Grylls. Brendon Grylls is also a Director.