A cow wearing a GPS collar doesn’t sound like a $2 billion idea. But for the ranchers who have strung virtual fences across 60,000 miles of American pastureland in under two years, it apparently is.
Halter, the New Zealand-born agtech company, announced on Monday that it has raised $220 million in Series E funding at a $2 billion valuation. The round was led by Founders Fund, Peter Thiel’s firm, which first backed Halter in its Series A round in 2017 and is now doubling down nearly a decade later. Existing investors Blackbird, DCVC, Bond, Bessemer Venture Partners, NewView, Ubiquity, Promus, and Icehouse Ventures also participated.
The raise ranks among the largest ever in the global agtech sector, and it values a company that, at its core, makes solar-powered collars for cattle.
What the collar actually does
Halter’s GPS-enabled collars use audio cues and gentle vibrations to contain and move herds within virtual boundaries. A rancher can redraw fence lines from a smartphone, shifting cattle across sections of land without physical infrastructure, without wire, and without riding out to do it in person. The system replaces one of the oldest and most costly pieces of ranch infrastructure with software.
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The company says it has now sold one million of its solar-powered collars and serves more than 2,000 ranchers and farmers across New Zealand, Australia, and the United States. Since launching in the US in 2024, American ranchers have built 60,000 miles of virtual fencing through the platform, a figure the company reported in November 2025 as 11,000 miles, suggesting rapid recent acceleration.
The money, and what it’s for
The new capital will fund Halter’s continued commercial and field operations expansion across its three existing markets while opening two new ones. Ireland and the United Kingdom are expected to come online later this year, with early ranch deployments already underway in Canada and further expansion being explored across North and South America.
Halter also plans its largest-ever hiring push, with more than 200 new roles focused on product, engineering, and customer-facing positions at its Auckland headquarters.
On the product side, the company is investing in animal health monitoring and pasture management capabilities, building outward from the core virtual fencing system into a broader operating layer for livestock operations.
From unicorn to double unicorn
The trajectory has been steep. In June 2025, Halter raised $100 million in a Series D led by Bond at an approximately $1 billion valuation, making it one of the rare deep tech companies to reach unicorn status outside a major tech hub. Less than a year later, the valuation has doubled.
That pace reflects something beyond hype. Halter operates in a sector, livestock management, that is worth trillions of dollars globally but remains among the least digitised industries on earth. The virtual fencing market barely existed five years ago. Now it is attracting capital from the same investors who backed SpaceX, Palantir, and Stripe.
Amin Mirzadegan, a partner at Founders Fund, pointed to something that often trips up deep tech companies in agriculture: adoption. Most agtech startups struggle to get products into farmers’ hands consistently. Halter, he noted, has built something ranchers are not just willing to use but have integrated into how they run their operations daily.
The harder question
Agriculture technology has a long history of grand promises and modest adoption. The sector attracted billions in venture capital during the early 2020s, much of it directed at indoor farming, food delivery logistics, and biotech approaches that later struggled to scale. Virtual fencing is different in that it solves an immediate, tangible problem, replacing physical infrastructure, but it still faces the challenge of persuading an inherently conservative industry to trust a collar and a smartphone over a post and wire.
Halter’s answer has been to embed itself in ranch operations rather than sell from a distance. The company maintains field teams that work alongside its customers, a labour-intensive model that has driven adoption but will need to scale efficiently as the footprint grows across six or more countries.
Craig Piggott, who founded the company in New Zealand and now leads it from Boulder, Colorado, framed the raise as being fundamentally about the people already using the product. The capital, he said, lets Halter reach more ranchers, faster.
Whether a collar on a cow can sustain a $2 billion valuation will depend on whether that reach translates into the kind of recurring, mission-critical adoption that turns a clever piece of hardware into an industry standard. A million collars sold suggests the beginning of that answer. The next million will tell us more.
