# Impulse Dynamics N.V.

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/impulse-dynamics-n-v

- Industry: Medical Devices & Equipment
- Headquarters: Marlton, US
- Website: www.impulse-dynamics.com
- Total disclosed funding: $150M
- Latest round: Series D (Jan 12, 2021)
- Investors on record: 10

## About

Founded in 1998 and based in New Jersey, US, Impulse Dynamics N.V. operates as a developer of Optimizer® Smart Mini system, a device for patients with moderate to severe heart failure symptoms, offering cardiac contractility modulation therapy to improve quality of life. The firm, as of July 2024, is led by its President and CEO, Jason Spees. In December 2025, Impulse Dynamics N.V. raised USD 158 million in venture funding co-led by new investors Braidwell and Sands Capital Management.

Impulse Dynamics offers devices for the treatment of chronic heart failure (CHF) through its Cardiac Contractility Modulation (CCM®) therapy delivered via the Optimizer® Smart Mini System. The Optimizer® Smart Mini is a minimally invasive implantable device that delivers precisely timed electric pulses to enhance the heart's pumping ability, thereby alleviating symptoms such as shortness of breath and fatigue. Approved by the FDA, this therapy has been implanted in over 9,000 patients globally as of July 2024.

The company plans to utilize the December 2025 funding to strengthen its efforts in bringing products to market, speed up clinical trial processes, and further the development of innovative technologies such as the CCM-D® HF System.

## Funding rounds

- Series D, Jan 12, 2021, $60M — Redmile Group, CR Capital, Perceptive Advisors
- Series D, Nov 20, 2019, $45M — Wellington Management, Minth Group Ltd, Abiomed, Inc., Kennedy Lewis Investment Management, Acorn Bioventures, Amzak Capital Management
- Series B, May 11, 2017, $45M — CITIC Goldstone Fund Management

## Investors

- CITIC Goldstone Fund Management (https://capitalatlas.ai/funds/citic-goldstone-fund-management) — Series B
- Wellington Management (https://capitalatlas.ai/funds/wellington-management) — Series D
- Minth Group Ltd — Series D
- Abiomed, Inc. — Series D
- Kennedy Lewis Investment Management — Series D
- Acorn Bioventures (https://capitalatlas.ai/funds/acorn-bioventures) — Series D
- Amzak Capital Management (https://capitalatlas.ai/funds/amzak-capital-management) — Series D
- Redmile Group (https://capitalatlas.ai/funds/redmile-group) — Series D
- CR Capital (https://capitalatlas.ai/funds/cr-capital) — Series D
- Perceptive Advisors (https://capitalatlas.ai/funds/perceptive-advisors) — Series D