Shelf Engine’s mission to eliminate food waste in grocery retailers now has some additional celebrity backers. The company brought in a $2 million extension to its $41 million Series B announced in March.

Ellen DeGeneres, Portia de Rossi, Shaun White and Shawn Mendes are the new backers, who came in through a strategic round of funding alongside PLUS Capital to bring the Seattle-based company’s total funding to $60 million since the company’s inception in 2016. This includes a $12 million Series A from 2020.

Shelf Engine’s grocery order automation technology applies advanced statistical models and artificial intelligence to deliver accurate food order volume so that customers can reduce their food waste by as much as 32% while increasing gross margins and sales of more than 50%. The company has already helped retailers divert 1 million pounds of food waste from landfills, Stefan Kalb, co-founder and CEO of Shelf Engine, told TechCrunch.

“We’ve had phenomenal growth last year, some of it from our mid-market customers, but mostly from customers like Target and Kroger,” Kalb said. “Our other big news is that we hired a president (Kane McCord) in the past six weeks, which is cool to have the reinforcement on the leadership side.”

Over the past 12 months, the company, which works with retailers like Kroger, Whole Foods and Compass Group, saw over 540% revenue growth. At the same time, it grew its employees to 200 from 23, Kalb said. He expects to more than double Shelf Engine’s headcount over the next 12 months.

As a result, the new funding will be used to scale with current customers and accelerate further investment in R&D of its AI systems and automation capabilities.

Meanwhile, Amanda Groves, partner at PLUS Capital, said her firm works with about 65 individuals who are in film, television, sports and culture, including the four new investors in Shelf Engine.

She says many of her clients are looking to participate in business as an investor or with sweat equity. Her firm works with them to determine interests and will then source opportunities and invest alongside them.

Shelf Engine fits into one of PLUS Capital’s core investment areas of sustainability. The firm looks across different sectors like food, energy, apparel, packaging and recycling. Shelf Engine’s approach of leveraging technology to aid in sustainability efforts was attractive to all of the investors, as was their method of scaling within grocery clients without affecting consumer behavior.

“When Shelf Engine is installed in the grocery store, they can reduce spoilage by 10% right off the bat — that immediacy of the impact was what got our clients excited,” Groves added.

One of Shelf Engine’s first celebrity investors was Joe Montana, and Kalb said partnering with celebrities enables the company’s mission to eliminate food waste and address the climate crisis to be made more aware.

“B2B software is not as glamorous, but the climate has become a big issue and something many celebrities care about,” he added. “Shawn Mendes has over 60 million followers, so for him to share about this issue is extremely meaningful. Where he invests will lead to his followers knocking on the doors of stores and saying ‘this matters to me.’ That is the strategy shift from B2B to a movement for our community.”

The company is not alone in tackling food waste, which globally each year amounts to $1.3 trillion. For example, Apeel, OLIO, Imperfect Foods, Mori and Phood Solutions are all working to improve the food supply chain and have attracted venture dollars in the past year to go after that mission.

Shelf Engine is already in over 3,000 stores nationwide in the areas of grocery, food service and convenience stores, which “is a large lift from 18 months ago,” Kalb said. Next up, the company is progressing to open new categories and managing more projects. He is specifically looking at what the company can manage in the store and manage for the customer.

“We are getting to the point where we can manage more of the store in complex categories like meat, seafood and deli that are mainly custom,” he added.