Google’s former autonomous vehicle project is becoming a more autonomous business by bringing it in its first investors besides its corporate parent.

Waymo has secured $2.25 billion from a group of investors led by Silver Lake and the Canadian Pension Plan Investment Board to help the company continue to develop its self-driving technology for its ride-hailing service and a recently launched trucking division.

“We’ve always approached our mission as a team sport, collaborating with our OEM and supplier partners, our operations partners, and the communities we serve to build and deploy the world’s most experienced driver,” said John Krafcik, CEO of Waymo, in the announcement.

“Today, we’re expanding that team, adding financial investors and important strategic partners who bring decades of experience investing in and supporting successful technology companies building transformative products. With this injection of capital and business acumen, alongside Alphabet, we’ll deepen our investment in our people, our technology, and our operations, all in support of the deployment of the Waymo Driver around the world.”

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A Waymo truck Waymo image)

Other investors in the deal announced Monday include Mubadala Investment Company, auto part makers Magna International, venture capital firm Andreessen Horowitz and AutoNation, the largest auto dealership chain in the U.S.

Until now, Waymo had been exclusively relying on the deep pockets of its parent company, Alphabet, which also contributing to the $2.25 billion investment.

The infusion of money from new investors marks Waymo’s biggest step yet toward eventually spinning out of Alphabet. That’s something analysts have speculated will eventually happen once its self-driving car technology becomes advanced enough to begin generating significant revenue.

Krafcik said a spinoff has “always been on the road map” during a Monday conference call with reporters. “”We look at this investment as another validation of what we are doing,” Krafcik said. He declined to disclose how much Waymo is being valued by the investors, but said the company is still in discussions to raise even more money.

“Waymo is the proven leader in self-driving technology, is the only autonomous vehicle company with a public ride-hailing service, and is successfully scaling its fully driverless experience,” said Egon Durban, Co-CEO, of Silver Lake. “We’re deeply aligned with Waymo’s commitment to making our roads safer, and look forward to working together to help advance and scale the Waymo Driver in the U.S. and beyond.”

Alphabet doesn’t disclose specific about Waymo”s financial performance, but bundles its results with a group of other high-risk projects and companies known as “Other Bets.” That division lost $4.8 billion last year on revenue of just $659 million.

But analysts think Waymo could turn out to be a gold mine because it is considered to be the leader in the race to build robotic cars that could eventually eliminate the need for humans behind the steering wheel and revolutionize the way people get around.

So far, though, Waymo is only operating a small ride-hailing service in the Phoenix area, although it still plans to branch out into other parts of the U.S. and eventually internationally, too.