# EnsoData

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/ensodata

- Industry: Software
- Headquarters: Madison, US
- Website: www.ensodata.com
- Total disclosed funding: $51M
- Latest round: Series B (Jun 18, 2025)
- Investors on record: 13

## About

EnsoData, Inc. is a technology company specializing in AI-driven solutions for sleep medicine, enhancing the efficiency and accuracy of sleep study processes through innovative products.Founded in 2015, EnsoData, Inc. is based in Madison, US, focusing on automating sleep study analysis. The company has completed a total of 4 deals, with the latest funding round occurring on April 27, 2022. EnsoData raised USD 20.000 mn in Series A funding, led by Inspire Medical Systems, Inc., with additional investments from Colle Capital, HealthX Ventures, M25, Supermoon Capital, Venture Investors, and Zetta Venture Partners. The founders are Chris Fernandez, Nick Glattard, and Sam Rusk, with Chris Fernandez serving as CEO.EnsoData specializes in advanced AI-driven solutions for sleep medicine through its flagship products, EnsoSleep and EnsoSleep PPG. EnsoSleep automates sleep study scoring, reducing report preparation time and improving accuracy. EnsoSleep PPG, paired with the FDA-cleared Celeste+ mobile application, enables data collection from pulse oximeters for continuous monitoring of sleep disorders. These products support sleep centers across the United States and internationally, addressing the rising prevalence of sleep-related conditions.EnsoData generates revenue through a business-to-business model, primarily offering subscription-based access to its software platforms, EnsoSleep and EnsoSleep PPG, along with related services. Clients, including sleep centers and healthcare institutions, enter into agreements that provide tools for efficient sleep study analysis. The pricing structure features tiered subscription plans for various facility sizes, promoting scalability. Transactions occur directly with healthcare providers, focusing on recurring revenue as clients renew subscriptions annually.In April 2022, EnsoData, Inc. raised USD 10.000 mn in Series A funding to support the adoption of AI technology in healthcare, specifically waveform artificial intelligence. The company plans to enhance its product offerings and expand into new geographic regions, though specific markets and timelines have not been disclosed. The recent funding will facilitate the development of new innovations and the scaling of existing solutions in the healthcare sector.

## Funding rounds

- Series B, Jun 18, 2025, $20M — Venture Investors, Inspire Medical Systems, Inc., Zetta Venture Partners, Questa Capital, Supermoon Capital
- Series A, Apr 27, 2022, $20M — Venture Investors, Inspire Medical Systems, Inc., Zetta Venture Partners, HealthX Ventures, Colle Capital, M25, Supermoon Capital
- Series A, Jun 10, 2020, $9M — Venture Investors, DreamIt Ventures, Zetta Venture Partners, SleepScore Labs, Necessary Ventures
- Seed, Mar 2, 2018, $1.5M — Sternhill Partners, Wisconsin Investment Partners, HealthX Ventures, Colle Capital, M25

## Investors

- Sternhill Partners (https://capitalatlas.ai/funds/sternhill-partners) — Seed
- Wisconsin Investment Partners (https://capitalatlas.ai/funds/wisconsin-investment-partners) — Seed
- HealthX Ventures (https://capitalatlas.ai/funds/healthx-ventures) — Seed, Series A
- Colle Capital (https://capitalatlas.ai/funds/colle-capital) — Seed, Series A
- M25 (https://capitalatlas.ai/funds/m25) — Seed, Series A
- Venture Investors — Series A, Series B
- DreamIt Ventures (https://capitalatlas.ai/funds/dreamit-ventures) — Series A
- Zetta Venture Partners (https://capitalatlas.ai/funds/zetta-venture-partners) — Series A, Series B
- SleepScore Labs — Series A
- Necessary Ventures (https://capitalatlas.ai/funds/necessary-ventures) — Series A
- Inspire Medical Systems, Inc. — Series A, Series B
- Supermoon Capital (https://capitalatlas.ai/funds/supermoon-capital) — Series A, Series B
- Questa Capital (https://capitalatlas.ai/funds/questa-capital) — Series B