REYKJAVIK, Iceland — Treble Technologies raised $18 million to adapt its acoustic digital‑twin platform and synthetic audio tools for robots, autonomous vehicles and wearable devices.
Paladin Capital Group led the round, with participation from existing investors KOMPAS VC, Frumtak Ventures and the European Innovation Council Fund, according to Treble’s Sept. 17 announcement. The company said the investment brought its total funding to 36 million euros, or about $43 million.

Treble plans to use the money to expand in the U.S. and develop its platform for audio-enabled consumer and industrial products. It chose not to reveal valuation details, revenue figures and ownership percentages.

Founded in Reykjavik in 2020, Treble develops cloud-based software that simulates how sound travels through rooms, vehicles and other physical environments. Its tools can create labeled synthetic audio data  including various materials, microphone locations, speaker positions and background noise.

Robotics developers can use the data to train systems to recognize sounds and understand speech in challenging acoustic environments. A mobile robot, for example, may encounter different acoustic conditions as it moves between rooms or operates near machinery.

TechCrunch reports that the company works with Amazon and Logitech, which use its simulations for audio development and testing. Treble also provides tools for speech enhancement, noise suppression, model evaluation and virtual prototyping.

Treble says its platform allows developers to analyze different hardware configurations and assess atypical acoustic conditions before producing prototypes or starting extensive recording sessions. Its claims about the platform’s accuracy and ability to shorten development cycles have not been independently evaluated.

Treble previously raised 11 million euros in a 2024 Series A round. CEO Finnur Pind and Chief Product Officer Jesper Pedersen, both acoustic engineers, founded the company after meeting while conducting sound-simulation research at the Technical University of Denmark.

The latest funding supports a planned expansion into robotics rather than establishing broad adoption by robot manufacturers. Treble has not named a robotics customer, identified a robot using its technology in regular operation or released independently verified results from a robotics application.