Impulse Dynamics Funding, Investors & Competitors

Impulse Dynamics has raised $786M across 9 funding rounds, most recently a $158M undisclosed-stage round in December 2025.

Last Impulse Dynamics funding round

$158M

Undisclosed stage · Dec 2025

Cumulative funding Impulse Dynamics raised

$786M

across 9 funding rounds

Key investors in Impulse Dynamics

  • Perceptive Advisors
  • Redmile Group
  • Alger
  • Kennedy Lewis Investment Management
  • Abiomed
  • Wellington Management
  • Sands Capital Ventures
  • GoldStone Investment

Impulse Dynamics Overview

About Impulse Dynamics

Impulse Dynamics is a Marshall, Michigan-headquartered medical device company delivering Cardiac Contractility Modulation therapy via the Optimizer Smart implant. Approved by FDA and CE Mark, the system treats NYHA class III heart failure patients by enhancing myocardial contractility during systole, with operations in Europe and the Middle East.


Founded

1996

HQ

United StatesMarlton, NJ

Status

Privately held

Customer focus

B2B

Revenue model

Product sales

Impulse Dynamics Funding History

Impulse Dynamics has raised a total of $786M across 9 funding rounds.

Impulse Dynamics' first fundraising round was a $30M undisclosed-stage round in May 2016. The most recent completed round was a $158M undisclosed-stage round in December 2025.

Impulse Dynamics funding rounds

Impulse Dynamics funding rounds
DateStageInvestorsRaisedDeal Summary
Dec 2025Undisclosed stageBraidwell (lead); Sands Capital Ventures (lead); Alger; Redmile Group; Perceptive Advisors$158MImpulse Dynamics, a global medical device company based in Marlton, N.J., develops therapies for heart failure patients, including its proprietary Cardiac Contractility Modulation (CCM®) therapy delivered via the Optimizer® system, which improves heart contraction to enhance oxygen-rich blood flow. The company also advances the CCM-D® HF System, a single device combining CCM therapy for heart failure symptoms with implantable cardioverter defibrillator (ICD) functionality. On December 10, 2025, Impulse Dynamics announced it raised more than $158 million in a financing round anchored by new investors Sands Capital and Braidwell, with support from returning investors Redmile, Perceptive, and Alger, plus prominent industry executives. The funding aims to enhance commercialization efforts, advance clinical and technology pipelines, and support key trials like the multicenter INTEGRA-D study evaluating the CCM-D® HF System and the AIM HIGHer trial. This round follows a U.S. Centers for Medicare and Medicaid Services (CMS) National Coverage Determination (NCD) confirming CCM therapy is no longer experimental, expanding reimbursement access for heart failure patients. In the U.S., over 100,000 new ICDs are implanted annually, adding to approximately 800,000 existing devices, presenting a large addressable market; CCM therapy is already approved in Europe. Impulse Dynamics has treated over 12,000 patients with CCM therapy to date, highlighting clinical traction. CEO Jason Spees noted the investment recognizes evidence-based outcomes and removes reimbursement barriers, enabling broader access. The round marks the largest life sciences venture capital financing in the Philadelphia area, positioning Impulse Dynamics to accelerate development and commercialization of its innovative heart failure solutions amid growing market needs.
Mar 2025Undisclosed stage-$84MImpulse Dynamics is a global medical device company developing therapies for heart failure patients, primarily the Optimizer CCM therapy delivery system, which improves heart contractions to enhance quality of life. The company announced an initial filing for an $84.1 million raise out of a $140 million offering on March 6, 2025. Later in 2025, Impulse Dynamics completed larger financing rounds, including $136 million on June 25 led by Perceptive Advisors, Redmile Group, Alger, and Hobart Healthcare to support commercialization and pipeline advancement, and $158 million on December 10 anchored by Sands Capital and Braidwell with support from Redmile, Perceptive, and Alger to fuel growth, clinical trials like INTEGRA-D and AIM HIGHer, and CCM-D HF System development. The company has implanted CCM therapy in over 12,000 patients by late 2025, with strong clinical evidence from randomized trials published in leading journals, and recently benefited from CMS coverage for CCM with evidence development, removing reimbursement barriers for Medicare patients. Impulse Dynamics positions itself to address gaps in heart failure care, targeting patients with limited options beyond medications, and is advancing next-generation devices combining CCM with ICD functionality amid a market with over 100,000 annual ICD implants in the US.
Feb 2024Undisclosed stageAlger (lead); Hobart Healthcare (lead); Perceptive Advisors (lead); Redmile Group (lead)$136MImpulse Dynamics plc is a global medical device company based in Marlton, New Jersey, focused on improving outcomes for heart failure patients through its proprietary Cardiac Contractility Modulation (CCM) therapy delivered via the Optimizer system, an implantable pulse generator approved in the US and 44 countries. The company announced a $136 million financing round on February 14, 2024, led by Perceptive Advisors, Redmile Group, Alger, and Hobart Healthcare, to accelerate global commercialization, technology development, product innovation, and clinical evidence generation. This follows a prior $101 million round in May 2022 that included equity and debt from investors like Alger, Squarepoint Capital, Abiomed, and Kennedy Lewis. The funding supports expansion of CCM therapy adoption, with over 9,000 heart failure patients implanted globally at the time of the announcement, and advances key clinical trials including INTEGRA-D, evaluating the Optimizer Integra CCM-D System that combines CCM with implantable cardioverter defibrillator (ICD) functionality in a single device, and AIM HIGHer. CEO Jason Spees, appointed in September 2023 after serving as president and chief commercial officer, highlighted the round's role in commercial acceleration and pipeline innovation to address unmet needs in heart failure symptom relief and ICD markets. Chairman Shlomi Nachman emphasized investor confidence in the leadership and teams driving CCM therapy innovation and market awareness.
May 2022Undisclosed stageAlger (lead); Simos Kedikoglou; Kennedy Lewis Investment Management; Squarepoint Capital; Abiomed$101MImpulse Dynamics is a global medical device company dedicated to heart failure treatment. The company develops cardiac contractility modulation (CCM) therapy, delivered through its Optimizer platform, which is designed to strengthen heart contractions and improve quality of life in heart failure patients. The company received FDA approval for its Optimizer system in 2019. In May 2022, Impulse Dynamics completed a $101 million financing round comprised of both equity and debt. The round was led by new investors Alger and Squarepoint Capital LLC, with participation from existing investors Abiomed, Inc. and Kennedy Lewis Investment Management LLC, as well as private investors from the company's Board of Directors, including CEO Simos Kedikoglou, MD. The financing was intended to accelerate commercial efforts to drive adoption of CCM technology, expedite enrollment in the landmark AIM HIGHer clinical trial, and accelerate development of next-generation combination devices. By February 2024, the company had advanced significantly, with more than 9,000 heart failure patients implanted with CCM therapy and successful enrollment in the INTEGRA-D clinical trial, which was evaluating a combination CCM and ICD therapy device. The company subsequently raised $136 million in February 2024 and $158 million in December 2025, demonstrating sustained investor confidence in the platform's commercial and clinical potential.
Feb 2022Undisclosed stage-$91M-
Jan 2021Series DCR-CCT Industry Pilot Fund (lead); Redmile Group; Perceptive Advisors$60MImpulse Dynamics is a medical device company dedicated to improving outcomes for heart failure patients through its proprietary Cardiac Contractility Modulation (CCM) therapy, delivered via the Optimizer Smart implantable system. The company's CCM technology is designed to improve heart contraction and allow more oxygen-rich blood to be distributed throughout the body, with clinical evidence showing 81.5% of patients experienced improvement in at least one full NYHA functional class. In December 2020, Impulse Dynamics completed a $60 million Series D crossover financing round led by the CR-CCT Industry Pilot Fund (co-managed by China Resources Capital Management and China Chengtong) alongside healthcare investment firm Redmile Group and life sciences-focused investment manager Perceptive Advisors. Proceeds from the round were allocated toward commercialization of the Optimizer Smart implantable device in the United States. Following the December 2020 financing, the company achieved significant regulatory and commercial milestones. In October 2021, the FDA approved a labeling modification for the Optimizer Smart that removed normal sinus rhythm as a barrier to CCM therapy, substantially expanding the eligible patient population. In April 2022, Impulse Dynamics launched the Optimizer Smart Mini CCM delivery system, completing its first U.S. implant in May 2022 and its first European implant in Italy in June 2022. By 2023, the company had treated more than 12,000 patients with CCM therapy across 44 countries and regions. In May 2023, Impulse Dynamics announced successful completion of the first implantation in the INTEGRA-D clinical trial, which evaluates the safety and efficacy of a combined CCM and implantable cardioverter defibrillator (ICD) device, positioning the company to address a broader patient population estimated at approximately 800,000 individuals already living with ICD devices in the United States alone.
Dec 2019Series DAmzak Health Investors (lead); Wellington Management; Kennedy Lewis Investment Management; Minth Group; Abiomed; Acorn; ZOLL Medical Corporation$80MImpulse Dynamics, a Mount Laurel, NJ-based medical device company, develops the Optimizer Smart System, an FDA-approved implantable device that delivers proprietary Cardiac Contractility Modulation (CCM) therapy to treat chronic heart failure by strengthening heart contractions and improving oxygen-rich blood flow. The company secured an $80.25 million Series D financing round announced around December 3, 2019, led by Amzak Health Investors, with participation from Wellington Management, Kennedy Lewis Investment Management, Acorn Biosciences, Minth Holdings Limited, strategic investors Zoll Medical Corporation and Abiomed, one additional corporate investor, and the company's CEO and CFO. Proceeds were earmarked primarily for U.S. commercialization of the Optimizer Smart following FDA approval of a PMA supplement for its next-generation two-lead version in October 2019, which eliminates the need for an atrial lead while maintaining therapy efficacy. Kennedy Lewis Investment Management, which had previously invested a combined $25 million in debt and equity, added to its position, highlighting CCM therapy's potential for a large heart failure patient population lacking alternatives, with aims to enhance patient outcomes and healthcare cost savings. Joyce Erony from Amzak Health Investors joined the board, noting the company's 2019 milestones including U.S. product launch. Earlier in 2019, Impulse Dynamics was recognized by Canaccord Genuity as one of 16 potentially disruptive private medtech companies. The Optimizer system, CE-marked and approved in 44 countries, targets heart failure patients with limited treatment options beyond medications. This round supported strategic growth amid positive clinical evidence, positioning Impulse Dynamics to expand access to CCM therapy in the U.S. market.
May 2017Undisclosed stageGoldStone Investment (lead)$45MImpulse Dynamics, a medical device company headquartered in Mount Laurel, New Jersey, raised $45 million in equity financing led by Goldstone Investment, a global investment company belonging to Chinese conglomerate CITIC Securities, with participation from several other international investment firms. The round closed on May 11, 2017, and represented a significant milestone for the company's expansion efforts. The company develops the Optimizer IVs implantable device that delivers Cardiac Contractility Modulation (CCM) therapy, a technology designed to treat chronic heart failure by delivering non-excitatory electrical pulses to the heart muscle to increase myocardial efficiency. The device had achieved CE Mark approval in the European Union in 2002 and had been used to treat more than 3,500 patients in Europe at the time of the financing. The company indicated the funds would support continued product development efforts and market expansion globally, including commercial expansion in China where its lead investor maintained significant interests. At the announcement, the company had completed numerous clinical studies with results published in over 80 articles in leading medical journals, and the Optimizer device was in clinical studies to support an anticipated FDA submission in the United States.
May 2016Undisclosed stageLee Ka Kit (lead)$30MImpulse Dynamics, a medical device company developing the Optimizer IVs implantable system for chronic heart failure (CHF) treatment via Cardiac Contractility Modulation (CCM) therapy, closed a $30 million equity financing round on May 13, 2016. The round was led by the investment fund of Dr. Peter Lee Ka Kit, Vice Chairman of Henderson Land Development Company Limited, a prominent Hong Kong property developer. Lee Ka Kit highlighted the Optimizer's potential to address unmet needs in heart failure patients unresponsive to optimal medical therapy, particularly emphasizing opportunities in the Chinese market. At the time, Impulse Dynamics was focused on global commercial expansion, clinical development, and product advancement for its FDA-approved and CE-marked Optimizer system, which delivers CCM therapy to enhance heart contraction and improve oxygen-rich blood flow. CEO Dr. Simos Kedikoglou noted the investment as validation of CCM therapy's value for patients and healthcare systems worldwide, with the lead investor expected to aid market access, especially in China. Proceeds from the $30 million were earmarked for continued commercialization, clinical studies, and product development. The company positioned CCM as a well-established technology meeting a major need in heart failure management. Subsequent rounds, including a $136 million financing in 2024 led by Perceptive Advisors and others, and a $158 million round in 2025, reflect ongoing growth, with over 12,000 patients implanted by late 2025.

Who has invested in Impulse Dynamics?

18 investors have backed Impulse Dynamics across its funding rounds, including Perceptive Advisors, Redmile Group, Alger, Kennedy Lewis Investment Management, Abiomed and Wellington Management.

Lead investors include Braidwell, Sands Capital Ventures, Alger, Hobart Healthcare, Perceptive Advisors and 5 other investors.


Impulse Dynamics Investors

Investors in Impulse Dynamics by funding rounds participated
InvestorHQRoundsRoleFirst check
AlgerUnited StatesNew York City, NY3LeadMay 2022
Redmile GroupUnited StatesSan Francisco, CA3LeadJan 2021
Perceptive AdvisorsUnited StatesNew York City, NY3LeadJan 2021
Kennedy Lewis Investment ManagementUnited StatesNew York City, NY2ParticipantDec 2019
AbiomedUnited StatesBoston, MA2ParticipantDec 2019
Wellington ManagementUnited StatesBoston, MA1ParticipantDec 2019
Simos KedikoglouUnited KingdomLondon1ParticipantMay 2022
GoldStone InvestmentChinaBeijing1LeadMay 2017
Sands Capital VenturesUnited StatesWashington, DC1LeadDec 2025
Minth GroupChinaChina1ParticipantDec 2019
CR-CCT Industry Pilot FundHong KongHong Kong1LeadJan 2021
Squarepoint CapitalUnited StatesNew York City, NY1ParticipantMay 2022
Amzak Health InvestorsUnited StatesNew York City, NY1LeadDec 2019

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Impulse Dynamics Competitors

Impulse Dynamics competitors include listed companies like Johnson & Johnson, Roche, Thermo Fisher Scientific and Danaher, and private ones like Biosplice Therapeutics and Neuralink.

Public and private companies comparable to Impulse Dynamics
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Johnson & JohnsonUnited StatesUnited StatesPublicly listed$94B$40B$651B6.8x
RocheSwitzerlandSwitzerlandPublicly listed$77B$26B$351B4.9x
Thermo Fisher ScientificUnited StatesUnited StatesPublicly listed$45B$11B$243B6.0x
DanaherUnited StatesUnited StatesPublicly listed$25B$6.9B$149B6.6x
Biosplice TherapeuticsUnited StatesSan Diego, CAPrivate--$12B-
NeuralinkUnited StatesUnited StatesPrivate--$9B-

Impulse Dynamics Public Comps

Impulse Dynamics is still privately-owned, but its public comps include Samsung, Johnson & Johnson, Roche, Thermo Fisher Scientific, Siemens, Abbott, Danaher, Intuitive Surgical, Medtronic and Stryker.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Samsung$243B$67B4.4x2.4x15.8x4.4x
Johnson & Johnson$94B$40B7.2x6.8x17.0x18.3x
Roche$77B$26B5.0x4.9x14.6x12.4x
Thermo Fisher Scientific$45B$11B6.3x6.0x26.8x23.6x
Siemens$91B$15B3.0x2.9x18.1x15.7x
Abbott$44B$12B4.6x4.2x17.4x15.8x
Danaher$25B$6.9B7.0x6.6x24.8x21.1x
Intuitive Surgical$10B$3.6B13.0x11.6x36.6x25.7x

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Common questions about Impulse Dynamics

When was Impulse Dynamics founded?Impulse Dynamics was founded in 1996.
Where is Impulse Dynamics headquartered?Impulse Dynamics is headquartered in Marlton, NJ, United States.
Is Impulse Dynamics publicly listed?No, Impulse Dynamics is a private, VC-backed company.
How much funding has Impulse Dynamics raised?Impulse Dynamics has raised $786M across 9 funding rounds.
What was Impulse Dynamics' last funding round?Impulse Dynamics' last funding round was a $158M undisclosed-stage round in December 2025, led by Braidwell and Sands Capital Ventures.
Who are Impulse Dynamics' investors?Impulse Dynamics' investors include Alger, Redmile Group, Perceptive Advisors, Kennedy Lewis Investment Management, Abiomed, Wellington Management, Simos Kedikoglou, GoldStone Investment, Sands Capital Ventures, Minth Group and 8 others.
Which companies are comparable to Impulse Dynamics?Companies comparable to Impulse Dynamics include Johnson & Johnson, Roche, Thermo Fisher Scientific, Danaher, Biosplice Therapeutics and Neuralink.

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