Outside of Rotary, he is also a behind-the-scenes philanthropist who often gets directly involved with his causes.
Phill has also sponsored many disadvantaged children through the Smith Family. This is to assist these children with their education and schooling needs. He has been formally recognised by the Smith Family for his contributions.
Around 2002, Phill Isaacs became a frequent and enthusiastic volunteer in a remote-area conservation program in the Colo River gorges, within Wollemi Wilderness. This involved undertaking arduous multi-day walks and rafting trips while treating thousands of invasive willow trees and other significant weeds. The program was conducted by the Friends of the Colo, a Landcare Group volunteering for the NSW NPWS. Phill soon earned a reputation as an observant weed-spotter and diligent worker.
In early 2007 six key members of the Friends of the Colo, including Phill Isaacs, were invited to undertake an experimental remote coastal weeding program in the Tasmanian Wilderness World Heritage Area. The experience inspired them to immediately set up a Tasmania-based self-managed volunteer group named SPRATS (Sea Spurge Remote Area Team) to carry on the work. Phill was a prime instigator and became part of the founding management committee. He played a key role in successfully applying for a major Commonwealth grant to support the project, and did so again for subsequent grants. He also managed the finances in connection with the grants.
Phill regularly donates his time and facilities at his Leura home for the annual Koori Flag Raising and Mirror Flashing ceremony. The event acknowledges the traditional owners of this land, the Gundungurra & D'harawal peoples and has occurred in this country for thousands of years. Phill has explored many "secret" indigenous artifacts and rock paintings. He has a broad but sensitive understanding of our country and its original people