Principal Advisor
National Lead – Defence & Analytics (Acting)
Sean King is the National Lead, Defence and Analytics providing strategic leadership across SPA Australia’s procurement, contracting, commercial advisory, and data-driven decision-making services. In 2012 he co-founded Proximity and played a pivotal role in its growth into a market-leading professional services business. In 2025, Proximity was acquired by SPA.
Sean is highly regarded by clients as a strategic advisor and lawyer to the government, with particular expertise in technology projects and Defence acquisition and sustainment.
Sean has worked on some of Australia’s largest projects, including multi-billion dollar deals and significant national programs. These have included assisting the Australian Government to purchase the largest ships ever owned by the Australian Navy, major technology projects such as Defence’s next generation desktop upgrade and high-frequency communications, whole of government technology arrangements for the DTA, and establishing the National Centre for the Prevention of Child Sexual Abuse.
Sean assists clients to get the best possible outcomes from their projects and programs. He achieves this through a combination of smart project management, good governance and practical legal and commercial advice.
Sean has a Bachelor of Computer Engineering, Bachelor of Law and qualifications in business and negotiation. Sean has received several awards during his career.
Sean is recognised by Best Lawyers for Commercial Law and Government Practice and Doyle’s Guide for Corporate, Commercial & Procurement.
He is married to Kim with young boys Hugo and Oscar. He is a lover of the great outdoors and can regularly be found hiking, biking, kayaking, skiing or horse riding with friends and family. Sean lives on one of the few farms in the ACT and freely admits that Kim is the better agronomist.