Decimal announced the launch of Eqilize, its 'ready to go' robo-advice platform for the institutional market, in late March.
The company also offers the market a fully customisable solution, known as Tentalon.
Energy Super will go live with Eqilize in the second half of 2016, with the project to begin in "coming months", according to a joint statement.
Decimal chief executive Nic Pollock said the deal with Energy Super has lent "validation" to the company's two-tiered offering "that addresses the very large global market of small to mid-cap customers who need robo solutions".
"Energy Super is indicative of the type of organisation for which the Eqilize offering is ideally suited," Mr Pollock said.
"Their core business is helping clients make informed decisions for retirement, while we provide robo-advice solutions that can be configured and branded to clients’ needs. It’s a logical and mutually beneficial partnership," he said.
Energy Super chief executive Robyn Petrou said her fund was impressed with the investment Decimal has made in its platform.
"It provides customer-centric solutions we can use immediately for our current members and prospective clients. It also gives good budget control and can be integrated seamlessly with our existing systems," Ms Petrou said.
"Our plan is for the online Decimal advice platform to complement our existing suite of financial advice, which ranges from free, single-issue advice over the phone through to comprehensive advice from our experienced financial planners."
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