NextSense

United States
Plain, Wisconsin, United States, 94043

Company profile

NextSense company profile

NextSense develops wearable brain-sensing technology focused on sleep and cognitive health. Their flagship product, the Smartbuds, is truly wireless earbuds embedded with ear EEG sensors that can detect brain and body rhythms to optimize states such as deep sleep, focus, and relaxation. The Smartbuds provide clinical-grade biosensing—capturing metrics like slow-wave sleep and comparing favorably to traditional lab-based EEG systems. They also include features like “Relax” mode and “Sleep-Sync” audio, which adapt in real-time to the user’s brain state to help unwind or improve rest.

Business identity

Operating status
Active
Company type
For Profit
Employee range
11-50 employees
Revenue range
$0-$1M
Founded
2020-01-01, Year

Headquarters

Postal code
94043
Country code
US
Continent
North America

Capital profile

Funding and company signals

Funding stage
Early Stage Venture
Funding rounds
4
Total equity funding
$31M
Last funding
Series A / $16.3M / 2025-11-11
Last equity funding
Series A / $16.3M
Investors
9
Lead investors
1
Founders
1
Articles
18

Founders and investors

Founders

Jonathan Berent

Lead investors

Ascension Ventures

Investors

Ascension VenturesBradley HorowitzHeroic VenturesJoy VenturesSatori Capital