Ambeon Holdings PLC is a conglomerate holding company based in Sri Lanka. John Walker who established Walker Sons and Company is the founder of the company. In 1874, Walker founded Walker and Greig to supply agricultural machinery to plantations in the hill country. The company was incorporated in 1910 and in 1959, it was brought under Brown and Company. In 1970, the company was listed on the Colombo Stock Exchange.
When Lionhart Investment Limited acquired the company in 2007, operations under the new owners proved to be controversial. The Securities and Exchange Commission launched a probe into the company when a subsidiary of the company sold a platinum mine in South Africa at a profit. The directors of the company were fined for document falsification. Harsha de Silva accused the company and its parent of stock manipulation in the parliament in 2013. Taprobane Holdings, a consortium of Navitas Holdings, Galle Face Hotel Group and Hirdaramani Group, acquired the company in 2015. In 2018, the company was renamed Ambeon Holdings. Ambeon Holdings is one of the LMD 100 companies in Sri Lanka. The company is also one of the top 20 conglomerates in the country. Ambeon Holdings controls a number of notable subsidiaries including Ceylon Leather Products, Dankotuwa Porcelain, MillenniumIT ESP, and Royal Fernwood Porcelain.