Funding

London-based Plumerai Raises $8.7M Funding In Series A Round

Sep 18, 2025 | By Kailee Rainse

London-based AI developer Plumerai has raised $8.7 million in a Series A round led by Partech and OTB Ventures, with participation from Acclimate Ventures and existing investors, bringing total funding to over $17 million.

SUMMARY

  • London-based AI developer Plumerai has raised $8.7 million in a Series A round led by Partech and OTB Ventures, with participation from Acclimate Ventures and existing investors, bringing total funding to over $17 million.

Plumerai’s Tiny AI, deployed on millions of cameras, offers people, vehicle, animal, and package detection, familiar and stranger recognition, and multi-camera tracking. It’s fast, cost-effective, privacy-focused, runs on battery-powered cameras, and uses off-the-shelf chips. Initially targeting home security, Plumerai is expanding into enterprise security, retail, and beyond.

These capabilities open new opportunities for Plumerai’s customers, powered by advances in multimodal LLMs that extract deep insights from video.

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When paired with its cloud-based Vision LLM, Plumerai’s Tiny AI runs on the edge, delivering exceptional accuracy with minimal cloud costs. Customer benchmarks show Plumerai’s AI Video Search outperforms cloud-only solutions like Amazon Nova and Google Gemini, with cloud expenses up to 135× lower.

“We are at an exciting point in time where powerful Vision LLMs are now both accurate and cost-efficient enough to open up valuable new use cases, thanks to our combination of on-device Tiny AI with cloud-based Vision LLMs,” says Roeland Nusselder, Founder and CEO at Plumerai.

“We’re going to make it possible for everyone to have their own AI security guard and assistant that never gets distracted, so they feel safer and calmer than ever before.

It will warn you about a stranger in your backyard, a leaking water pipe, or simply help you find your keys.

And it’s not just for the home, but for retail, offices, warehouses, elderly care and more. The trust of our partners and investors allows us to bring powerful AI into the physical world, beyond desktops and the cloud-"

Reza Malekzadeh, General Partner at Partech, says: “There are many companies building great products but they struggle to add powerful AI features to their devices. Plumerai enables them to do this, move faster to market, with high-quality AI features, and lower development costs. They are on track towards a future where trillions of intelligent edge devices are equipped with their AI.”

“We are particularly impressed by the strength of Plumerai’s technology and product, which has clearly outperformed in every technical evaluation performed by customers,” adds Marcin Hejka, Managing Partner at OTB Ventures.

“Since customers can use simple over-the-air software updates to activate Plumerai’s AI on devices that are already in the field, Plumerai has been able to scale up quickly with rapid ARR growth as a result. We look forward to working with Roeland and the entire team on this next stage of growth.”

The new funding will fuel Plumerai’s vision of powering trillions of intelligent devices, a goal accelerated by its latest Vision LLM capabilities.

About Plumerai

Founded in 2017, Plumerai enables developers to integrate highly accurate AI into embedded devices. A leader in licensable AI for smart home cameras, its efficient software covers people, vehicle, and animal detection, familiar face recognition, and more, running locally with privacy and accuracy. Based in London and Amsterdam.

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