BioSonic is a Stockholm-based Biodiversity & AI company that builds the most accurate bat sound analysis platform in independent benchmarks. Founded in 2024, our deep learning models are trained on 2.5 million bat calls and 3.5 million noise files, achieving 98.7% F1 accuracy in independent benchmarks. Ecological consultants, government agencies, and conservation researchers across Europe use BioSonic for automatic species identification, behaviour classification, and collaborative review. The platform processes recordings from all major bat detector hardware in the web browser and delivers species-level results fast, replacing weeks of manual spectrogram analysis.

Our mission

Bat surveys generate enormous volumes of ultrasonic recordings, and turning that raw audio into reliable species data has traditionally meant weeks of manual spectrogram review. We started BioSonic to remove that bottleneck — so ecologists can spend their time on ecology, not on scrubbing through audio. Our mission is to make the most accurate automatic bat identification available to every consultant, agency, and researcher working to protect biodiversity.

The science & accuracy

BioSonic's classification is powered by deep learning models built specifically for bat echolocation and social calls. The models are trained on 2.5 million bat calls and 3.5 million noise files, which lets them separate real bat passes from wind, rain, insects, and equipment noise — the single biggest source of error in automatic identification.

98.7% F1 ACCURACY
2.5M BAT CALLS TRAINED
3.5M NOISE FILES TRAINED
2024 FOUNDED

That 98.7% F1 figure is not our own marketing number — it comes from an independent benchmark validated by Wilder Sensing across 6,126 calls and 15 species. You can read the full methodology and results on our accuracy benchmarks page.

Founders

BioSonic founders Josef Carlson and Jonathan Carlson

Jonathan Carlson

CTO & Co-Founder

Creator of BioSonic's AI Architecture for Bat Classification.

Josef Carlson

CEO & Co-Founder

Leads commercial strategy, product direction, and customer relationships.

Awards & recognition

Bert-Inge Hogsved Prize for Best Entrepreneurship 2025 Chalmers University of Technology

Awarded for BioSonic's AI architecture for bat classification.

Jonathan Carlson receiving the Bert-Inge Hogsved Prize at Chalmers University of Technology

Company facts

BioSonic AB

Bergsundsgatan 7, 117 37 Stockholm, Sweden

Email: hello@biosonic.se

Phone: +46 72 744 65 85

Org.nr: 559472-8056 · VAT SE559472805601

More ways to reach us on our contact page.