Sweeney’s appointment, to take effect in December 2024, will fill the role vacated by Stephen Rue last May. 

Rue quit NBN Co and joined Optus as its newest CEO.

Sweeney spent six years at Vocus, serving as chief operating officer and then as CEO from last year.

She both held executive director of global enterprise services and sales roles at Telstra for more than 14 years.

In a statement, Sweeney will lead NBN Co as it “continues to lift the digital capability of Australia through significant network investments that are driving social and economic benefits for the nation.”

Commenting on her appointment, Sweeney said in a statement, "NBN doesn't just build the infrastructure; the company is building the future of Australia. My passion for the NBN purpose stems from a belief that enhanced connectivity drives progress and prosperity.”

"My vision for our future is rooted in the conviction that by expanding and enhancing our digital infrastructure and technology, we can drive meaningful change and ensure that all Australians can thrive."

NBN Co chair Kate McKenzie welcomed Sweeney’s appointment.

"She [Sweeney] brings a wealth of experience and a deep understanding of the telecommunications landscape, and will continue to deliver on our ambition to ensure that homes and businesses have access to world-class broadband - empowering people; delivering for customers, valued partners, and stakeholders; and continuing to foster the strong culture of NBN.”

In a statement, Communications Minister Michelle Rowland said Sweeney’s appointment comes at an “important time” for NBN Co to maximise the benefits of NBN for all Australians.

“The Albanese Government is investing to support NBN Co to deliver network upgrades and improved technology to meet the growing connectivity needs of Australians.

“Our goal is to narrow the digital divide across Australian communities, and ensure we have world-class digital infrastructure to support a Future Made in Australia.”