Photo: Ryland West/ALM As many foreign law firms have scaled back their presence in Australia or exited entirely, U.S.-headquartered Sullivan & Cromwell has successfully operated an antipodean practice for 43 years. The firm has carved out a profitable niche helping Australian companies raise or deploy cash in the U.S. and counts major corporates, such as mining giant BHP, lithium mining services company Mineral Resources, and oil and gas producer Woodside Energy, as clients.