Imagine a warehouse full of apples, each one quietly exhaling invisible puffs of ethylene gas as it ripens. Now imagine if every one of those whispers could be heard, interpreted, and acted on before a single fruit turns to mush. That’s the promise of Strella, a Seattle-based ag-tech startup that just secured $4.25 million in fresh funding to expand the reach of its produce-monitoring technology. The new capital extends the company’s Series A round and brings its total funding to $26.25 million. The investment was led by SilverBlue, with participation from LeVert Ventures, Beta Milouot, and PeakBridge. It’s a meaningful vote of confidence for a young company trying to chip away at one of the world’s most absurd, and most solvable, problems: food waste. The numbers are enough to make anyone flinch. The United Nations estimates that about one-third of all food intended for humans is lost or wasted around the globe, causing roughly $940 billion in annual economic losses. In the United States, the situation is even more painful: about 40 percent of edible food ends up in the trash, costing $218 billion every year. Much of that waste happens because fresh produce goes bad before it ever reaches a plate. We’ve all bought avocados that looked flawless in the store but turned out brown inside, or tossed out a bag of salad that went slimy days before its printed date. Strella is building a safety net for those moments, but at an industrial scale that spans orchards, packing houses, shipping containers, grocery stores, and kitchens. It’s an ambitious mission, and the startup is gathering real momentum with a team of 19 people, customers in 26 countries, and a growing pile of evidence that produce can be saved before it spoils. This isn’t just about saving money, although it is about that too; it’s about making something right in a food system that has too often treated waste as an unavoidable cost of doing business.
Behind Strella is Katherine Sizov, the company’s CEO and co-founder, a young entrepreneur who has become a recognizable face in the fight against food waste. Forbes put her on its 30 Under 30 list, and for good reason: she took an idea that sounds almost too niche to matter—using sensors to measure ripening gases—and turned it into a global business. Sizov launched Strella in Philadelphia in 2019, when she was still figuring out how to translate a simple insight about fruit physiology into a commercial product. She knew that fruits like apples and pears don’t spoil randomly; they announce their ripeness by releasing ethylene, a natural plant hormone. If you can measure that signal, you can predict when fruit will peak, and more importantly, when it will collapse. But building a startup around that insight took persistence. Four years ago, Sizov made the bold decision to relocate the company’s headquarters from Philadelphia to Seattle, drawn by Washington’s massive fruit orchards—a living laboratory of apples, pears, and cherries. The move wasn’t just about logistics; it was about proximity. Strella’s sensors and software needed to be tested against the real, messy, unpredictable world of commercial agriculture. In Washington, the company could walk into packing houses and orchards, watch how fruit moved through the supply chain, and learn from growers who had spent decades perfecting their craft. Sizov has described the company’s goal as becoming “guardian angels” for produce, and that mission required getting close to the fruit, the farmers, and the everyday realities of the food business. It also required a founder stubborn enough to believe that a tiny startup could take on a global problem, one crate at a time.
If an apple could talk, it wouldn’t need words—it would emit faint, telltale puffs of ethylene, and Strella’s devices would listen. The company’s technology begins with small IoT sensors placed near stored or transported produce. These sensors detect ethylene and other gases that fruits and vegetables naturally release as they ripen, essentially eavesdropping on the biochemical conversations happening inside each crate. The more ethylene, the more advanced the ripening process; a sudden spike can signal that fruit is about to turn, while a steady low level might mean it still has weeks of shelf life. But sensors alone aren’t enough. Strella also uses machine vision—cameras and image-recognition software—to eyeball produce in ways that human inspectors can’t. A camera can scan thousands of apples in seconds, looking for discoloration, shriveling, bruising, or other signs of distress. Then the company’s software layers all this real-time data with context: where the fruit was grown, when it was packed, what variety it is, and how it’s traveled. A Honeycrisp apple from Washington is different from a Gala from New Zealand, and Strella’s platform learns the quirks of each. The result is a kind of digital sixth sense for produce. Instead of waiting for a pallet of pears to arrive at a port and discovering that half are overripe, a manager can check a dashboard and see exactly what’s likely to happen in the next few days or weeks. That insight lets people make smarter decisions: move a shipment faster, send it to a closer market, adjust storage temperature, or discount it before it turns to waste. It’s not magic. It’s chemistry, data science, and a deep respect for the humble fruit, working together to give fresh food a fighting chance.
So who is actually using Strella’s technology? The company’s customers span 26 countries, and its roster includes everyone from farmers who grow the fruit to the packers who sort it, the shippers who move it, the distributors who connect farms to stores, and the retailers who put it on shelves. Despite the global reach, Strella remains deliberately lean, with a team of just 19 people. That’s possible because much of the work is automated: sensors collect data, algorithms interpret it, and people step in when something needs to change. This breadth is intentional, because food waste isn’t a single moment of failure; it’s a chain of small accidents and oversights. A crate of avocados may be fine when it leaves the farm, then suffer through a too-warm truck ride, then sit for days at a distributor’s warehouse, and finally reach a grocery store with barely any shelf life left. Strella wants to catch those problems at every handoff. The company’s original focus was on apples and pears, two fruits that are particularly sensitive to ethylene and notoriously difficult to store for long periods. From there, Strella expanded into avocados and citrus, and it recently added kiwifruit to its lineup. Each crop has its own personality. An avocado ripens unpredictably, a lemon is more patient, and a kiwifruit can go from hard to mealy in what feels like an instant. Strella’s system learns those personalities, building a database of ripeness patterns that improves with every crate it monitors. For growers, the benefit is straightforward: less waste means more profit, and better predictions mean they can negotiate with buyers from a position of knowledge. For retailers, the payoff is equally clear. A supermarket that knows exactly how ripe a pallet of fruit is can decide whether to put it out today or hold it for a holiday weekend, or whether to mark it down before it becomes a liability.
Strella’s ambitions go beyond saving a few million apples. Sizov talks about building the “system of record for quality in the food supply chain”—a phrase that sounds corporate until you think about what it actually means. Right now, when a box of pears travels from a farm in Washington to a grocery store in Chicago, the people handling it know a surprising amount about its price but almost nothing about its true, moment-to-moment condition. They rely on best guesses, printed labels, and the old-fashioned touch test. A system of record would change that. It would create a living digital diary for every batch of produce, following it from the tree to the checkout aisle and noting every change in temperature, gas concentration, humidity, and visual appearance along the way. In a sense, Strella wants to be the guardian angel that hovers over a bunch of bananas as it passes from hand to hand—farmer, packer, trucker, warehouse worker, produce clerk—giving each one quiet, timely advice about what the fruit needs. Sizov herself puts it even more simply. “Our vision is to become the system of record for quality in the food supply chain, or the ‘guardian angels’ of produce as it passes from hand to hand,” she says. The next phase is about integration. Strella already works with all the major players in the chain, but those relationships have historically been separate projects. Sizov wants to stitch them together into a single, seamless platform: a one-stop shop where growers can see how their fruit performed all the way to the store shelf, and retailers can trace a piece of produce back to its orchard. “The next step for us is to begin stitching all the pieces together to become a one-stop shop for quality and tackle the food waste problem at scale,” she says. That kind of transparency is rare in agriculture, and it’s the key to solving waste without asking anyone to sacrifice convenience.
The new funding round, led by SilverBlue with support from LeVert Ventures, Beta Milouot, and PeakBridge, is more than a financial milestone. It represents a broader shift in how investors are thinking about agriculture. For decades, ag-tech was seen as a sleepy corner of the startup world, dominated by slow-moving companies and distant horizons. That’s changing. As climate change destabilizes growing seasons, as supply chains prove fragile, and as consumers demand greater transparency, the business of keeping food fresh has become urgent. Strella’s $26.25 million in total funding is modest by tech standards, but it’s enough to prove a point: the market for food waste solutions is real, and growing. The company is using the money to expand its operations, refine its technology, and push into new crops and regions. There’s also an emotional dimension to this work that shouldn’t be underestimated. Food waste isn’t just an economic statistic; it’s a moral failure in a world where millions of people go hungry. Every crate of fruit that ends up in a dumpster represents the labor of farmers, the water used to grow it, the fuel burned to ship it, and the money spent to buy it. Strella can’t solve all of that alone, but it can give the people who handle our food the tools to make better decisions in real time. Imagine going to the grocery store and finding that every piece of fruit really is as good as it looks. Imagine a farmer knowing exactly when to pick and ship their crop, and a shipper not having to discount an entire load because part of it is turning. That’s the future Strella is moving toward. The company’s journey—from a founder’s idea in Philadelphia to a global team monitoring kiwifruit in 26 countries—is a reminder that some of the most important innovations are quiet ones. They don’t make headlines or change the way we scroll. They simply make the world less wasteful, one ripening apple at a time.
