Last Updated: 17 September 2026
Treble Technologies is an Icelandic audio technology company developing software for acoustic simulation, synthetic audio data and virtual prototyping. Founded in 2020 and based in Reykjavík, it helps engineers and AI teams model how sound behaves in real environments before building or testing physical products. Its platform supports machine learning and AI, smart glasses, product design, building acoustics, professional audio and automotive applications. Treble works with teams developing audio hardware, voice systems and AI models, and has collaborated with Amazon and Logitech.
Treble has raised $18 million, approximately €15 million, in a Series A 2 round led by Paladin Capital Group. Existing investors KOMPAS VC, Frumtak Ventures and the European Innovation Council Fund also participated. According to Treble’s funding announcement, the investment brings its total funding to €36 million.
The company plans to use the funding to expand further in the US and develop its work in physical AI, where robots, wearables and other intelligent devices need to understand sound while operating in changing environments.
The problem becomes harder once devices leave the lab. At CVPR 2026, NVIDIA’s Interactive Physical AI workshop described systems that use audio and visual signals to perceive people and scenes while operating under physical constraints. For audio systems, that means dealing with background noise, movement, reverberation and changing surroundings.
Physical AI refers to intelligent systems that can perceive, understand and act in the physical world. Much of the development in this area has focused on vision and touch. Audio adds another layer because speech and other sounds can change depending on the room, background noise, microphone position and movement.
These conditions matter for several types of products. Treble points to wearables, head worn devices, humanoid robots and autonomous vehicles as examples where sound must be interpreted while the product moves through different environments.
The company has already worked with Amazon and Logitech on audio related development. Amazon said virtual acoustic environments are used during the development of Alexa. Logitech said Treble allows its teams to simulate acoustic conditions that would be difficult to reproduce or test at scale in the physical world.
“Paladin predicts that robotics will drive a profound wave of automation across the physical world. Yet today’s robots are largely limited to visual perception: they may detect what is in front of them but cannot interpret critical sounds - such as someone falling in another room or a crash around a corner. Even accurately understanding human speech remains difficult in real-world, acoustically complex environments.”
François Ruether, Vice President at Paladin Capital Group
The new capital will support Treble’s expansion in the US market and further development of its technology platform. Physical AI is another area of focus. The company plans to extend its work in consumer and enterprise audio into applications where AI systems and devices must understand sound while moving through physical environments.
Treble’s platform allows device makers and AI developers to test products across many acoustic conditions without physically recreating every situation. It can model rooms, materials, vehicles, devices, speakers and ambient sounds, then use those simulations to generate synthetic audio data for testing models and hardware.
The company says this approach can reduce prototype testing and data collection from months to days. Development teams can also test difficult edge cases, compare different product configurations and create consistent labeled datasets before starting large recording programs or building physical prototypes.
Treble creates digital versions of acoustic environments. The concept is straightforward. Instead of placing a product in every possible room, vehicle or sound environment, developers can simulate how sound travels, reflects and changes under different conditions.
These environments can function as acoustic digital twins, which are virtual representations of physical spaces and their sound characteristics. Developers can use them to evaluate how a product or AI model may perform before producing hardware prototypes or collecting large volumes of recordings from physical locations.
“Audio and voice interaction is becoming a fundamental interface for the next generation of intelligent products, but the physical world is acoustically complex. AI models and devices that perform well in a laboratory can struggle when they encounter reverberation, background noise, or an unfamiliar physical environment. Treble gives development teams at the world’s leading device makers a faster and more scalable way to model those conditions, generate the data they need, and test products to ensure they work reliably in the environments where machines operate, and people interact with them.”
Dr. Finnur Pind, co-founder and CEO of Treble
Paladin Capital Group led the latest financing. The investment firm focuses on AI, cyber and deep technology companies across the US and international markets. Existing Treble investors KOMPAS VC, Frumtak Ventures and the EIC Fund returned for the round.
Treble previously raised €11 million in a Series A round in September 2024. According to the company’s Series A announcement, that financing was led by KOMPAS VC and included Frumtak Ventures, the EIC Fund, Omega ehf, Saint Gobain, L Acoustics and angel investors. At the time, Treble said the money would support hiring, research and development, new enterprise customers and expansion into additional markets.
With the latest investment, Treble reports €36 million in total funding. The company is now directing more of its work toward audio enabled physical AI systems. The financing will also support its expansion in the US and continued work with device manufacturers and AI model developers.
