Bill Brandon worked in the Illawarra between 1978 and 1986, predominantly as the Figtree branch manager, and has very fond memories of working in the region.

Mr Brandon and Gail Smith, who has also notched up four decades, were presented with gift vouchers, a certificate of service and a plaque by Greater Building Society chairman Wayne Russell and chief executive Don Magin in recognition of their dedication to the company and its customers.

Ms Smith is the executive assistant to the chief executive officer and the board and Mr Brandon is now the lending services' system and administration manager.

Both started working for the society within days of each other in January 1974.

Mr Brandon's employee number is 34 and Ms Smith's is 36.

She started in the typing pool and he started as a clerk in head office and they may also end their careers around the same time, as both are planning to continue with the society for at least another five years.

Mr Brandon said when he started, the society had assets of $50 million and today it had assets of $5 billion.

"I love working at the Greater and the people are fantastic."

Mr Magin thanked both employees for their tremendous contributions.

He said one of the key drivers of the society's high customer satisfaction rating (97 per cent) was the dedication of highly skilled and long-serving staff members such as Mr Brandon and Ms Smith.