What Littmann does

Littmann is a medical diagnostic instrument brand specializing in stethoscopes for healthcare professionals, students, and educators. Its product portfolio spans the entry-level Lightweight II S.E. through the Classic III, Cardiology IV, Master Cardiology, and Classic II Pediatric and Infant variants, alongside the digital CORE Stethoscope and a complementary accessories line (spare parts kits, eartips, diaphragms, Satin Finish Tubing). The technical foundation rests on Dr. David Littmann's patented acoustic design, the tunable diaphragm (introduced 1984) that allows frequency selection via chestpiece pressure, dual-lumen tubing that suppresses rubbing noise, and — for the digital line — 40x amplification with active noise cancellation paired to the Eko software platform for heart sound visualization and AI-enabled analysis. Manufacturing is conducted in the United States with globally sourced materials.

The business is a brand within Solventum (NYSE:SOLV), the healthcare business spun off from 3M in April 2024. Revenues are generated through hardware sales of stethoscopes and accessories across a multi-channel distribution architecture: a global network of authorized medical supply dealers, an official Amazon storefront, and the direct littmann.com site. Pricing is not publicly disclosed; quotes are negotiated for bulk or enterprise orders. End customers include physicians, nurses, cardiologists, pediatricians, neonatologists, respiratory therapists, LPNs, certified nursing assistants, and nursing students operating in hospitals, clinics, critical care units, and educational settings.

The company emphasizes brand authenticity, multi-year warranties (3–7 years depending on model), and educational content marketing (e.g., the "Hear the Difference" blog) to support customer acquisition and retention across 30+ countries. Active anti-counterfeit messaging directs buyers toward authorized channels to protect both patient safety and brand equity. As a sub-brand of Solventum, Littmann's standalone financials are not separately disclosed; the brand relies on Solventum's broader regulatory and operational infrastructure, including FDA 21 CFR Part 820 compliance and HIPAA-aligned privacy practices.

Name

Littmann

Legal name

Solventum

Website

https://littmann.com

Company type

Public

Founded year

1967

Operating status

Operating

Headcount range

251–500 employees

Short description

Littmann is a medical device brand producing premium acoustic and digital stethoscopes for physicians, nurses, students, and educators across more than 30 countries. The brand, owned by Solventum (NYSE:SOLV), sells through authorized dealers, Amazon, and direct channels.

Ownership category

akta.pro rank

Product category

Medical Diagnostic Devices

NAICS

Surgical and Medical Instrument Manufacturing (339112), Electromedical and Electrotherapeutic Apparatus Manufacturing (334510)

SIC

Surgical & Medical Instruments & Apparatus (3841)

akta.pro primary industry

Hemodynamic Monitoring & Cardiac Diagnostics (Cath Lab, FFR/IVUS/OCT) (HLAHAFAI)

Keywords

• Diagnostic stethoscopes
• Cardiology stethoscopes
• Medical acoustic devices
• Digital auscultation tools
• Pediatric stethoscopes

Headquarters

HQ city

Saint Paul

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Stethoscope Hardware Sales: Littmann generates revenue through the sale of stethoscopes and accessories. Products range from entry-level Lightweight II S.E. to premium Cardiology IV and Master Cardiology models. Accessories include spare parts kits, eartips, diaphragms, and double stick discs. Made in the USA with globally-sourced materials.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Littmann manufactures and sells medical stethoscopes for healthcare professionals, students, and educators, spanning entry-level (Lightweight II S.E.), general monitoring (Classic III), pediatric/infant (Classic II), cardiology-grade (Cardiology IV, Master Cardiology), and digital (CORE Digital) models, along with replacement accessories and warranty/repair services. Products are made in the USA with globally sourced materials and feature proprietary tunable diaphragm technology, dual-lumen tubing, and (for CORE Digital) 40x amplification plus Eko software integration for AI-assisted heart sound analysis.

Product overview

Littmann is a brand of medical diagnostic instruments specializing in stethoscopes for healthcare professionals, students, and educators. The product portfolio includes digital, cardiology, classic, lightweight, infant, and pediatric stethoscopes, along with replacement accessories. The core products are the Littmann CORE Digital Stethoscope (featuring digital amplification and AI-powered companion app integration), the Cardiology IV Stethoscope (high-performance cardiology-grade model), and the Classic III Stethoscope (versatile monitoring instrument). Supporting products include the Lightweight II S.E. (entry-level), Master Cardiology (premium mechanical), and specialized Classic II Infant and Pediatric models. Accessories include spare parts kits, eartips, and diaphragms. All products are manufactured in the USA with globally-sourced materials and feature proprietary tunable diaphragm technology.

Differentiator

Problem solved

Functional benefit

Brands

• Littmann CORE Digital: Digital stethoscope featuring up to 40x amplification, active noise cancellation, and connectivity to Eko software for heart sound visualization
• Littmann Cardiology IV
• Littmann Classic III
• Littmann Master Cardiology
• Littmann Classic II Infant
• Littmann Classic II Pediatric
• Littmann Lightweight II S.E.

Products and services

• Littmann CORE Digital Stethoscope A digital stethoscope that amplifies up to 40x at peak frequency versus analog mode, features active noise cancellation, and connects to Eko software for heart sound visualization and sharing. It is designed for healthcare professionals and offers both analog and amplified listening modes.
• Littmann Cardiology IV Stethoscope A cardiology-grade stethoscope with dual-lumen tubing to reduce rub noise, designed for challenging environments. Features a 40% larger chestpiece and 60% deeper bell than the Classic III, with tunable diaphragms for adult and pediatric patients, and a seven-year warranty.
• Littmann Classic III Stethoscope A versatile monitoring stethoscope with high acoustic sensitivity and dual-sided chestpiece with tunable diaphragms, designed for physical assessment, patient monitoring, and diagnosis. Five-year warranty.
• Littmann Lightweight II S.E. Stethoscope An entry-level stethoscope weighing 118 grams, the lightest of all Littmann adult stethoscopes. Features tunable diaphragm technology, dual-sided chestpiece, and adjustable headset. Ideal for LPNs, nursing assistants, and nursing students performing blood pressure monitoring and limited physical assessments.
• Littmann Master Cardiology Stethoscope The highest acoustic response in the Littmann mechanical stethoscope line, featuring tunable diaphragm, dual-lumen tubing, and precision ergonomically designed chestpiece. Designed for confident assessments with hard-to-hear sounds.
• Littmann Classic II Infant Stethoscope Specially designed for infant patients with a small 1.07-inch (2.7 cm) diaphragm. Delivers high acoustic sensitivity through a dual-sided chestpiece for both high and low frequency sounds. Three-year warranty.
• Littmann Classic II Pediatric Stethoscope Designed for smaller patients with a 1.3-inch (3.3 cm) diaphragm. Dual-sided chestpiece provides high acoustic sensitivity for both high and low frequency sounds. Three-year warranty.
• Littmann Stethoscope Accessories Replacement parts and accessories including spare parts kits, eartips, diaphragms, and rims specifically designed for each Littmann stethoscope model, as well as Double Stick Discs for secure attachment.
• Littmann Warranty and Repair Service Warranty support (2–7 years depending on model) and repair services for Littmann stethoscopes, provided through the official littmann.com warranty and repairs page to keep devices in top working condition whether in-warranty or out-of-warranty.

Quantifiable outcome

• More than twice as loud as the next leading brand in acoustic performance testing
• +2 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability4 records

Feature6 records

Partnerships

One partnership is on record.

• Eko HealthcoreTechnology or IntegrationLittmann CORE Digital Stethoscope integrates with Eko software for heart sound visualization and AI-powered analysis. This partnership enables digital auscultation with sound recording, playback, and sharing capabilities. The CORE Digital is co-branded with Littmann and Eko, representing a strategic technology integration partnership.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Emerging players

• Withings: Withings builds connected health devices including watches and BPM monitors with cardiac rhythm detection (ECG). It represents an emerging class of consumer-friendly cardiac diagnostic tools that could overlap with Littmann's CORE Digital AI auscultation use cases.

Direct peers

• Eko Health: Eko Health manufactures digital stethoscopes with AI-powered cardiac and pulmonary analysis. It is both Littmann's strategic partner (co-branded CORE Digital) and a direct competitor via its own CORE 500 and 3M Littmann CORE alternative products.
• MDF Instruments: MDF Instruments is a direct-to-consumer stethoscope brand focused on affordable, lifetime-warranty mechanical stethoscopes. It competes primarily on value and warranty, especially with medical students and entry-level clinicians — a key Littmann segment.
• ADC (American Diagnostic Corporation): ADC designs and manufactures diagnostic medical instruments including stethoscopes, sphygmomanometers, and otoscopes. Its Adscope line directly competes with Littmann at entry-level and mid-tier price points across nursing and medical student segments.
• Prestige Medical: Prestige Medical produces stethoscopes, sphygmomanometers, and other diagnostic instruments marketed to nursing students, LPNs, and allied health professionals — overlapping directly with Littmann's entry-level Lightweight II S.E. segment.

Broad incumbents

• Hillrom (Baxter): Hillrom, acquired by Baxter, supplies hospital-grade physical assessment and monitoring equipment, including diagnostic tools adjacent to Littmann's clinical use cases. Comparable as a broad incumbent in clinician-side diagnostic infrastructure.
• 3M (former parent): 3M acquired Littmann in 1967 and spun off the healthcare business as Solventum in 2024. While no longer the parent, 3M's broader healthcare-adjacent portfolio overlaps historically and remains a benchmark for Littmann's former corporate positioning.
• Philips Healthcare: Philips is a diversified medical device and monitoring incumbent. While Philips does not focus on stethoscopes, it competes for clinical diagnostic mindshare and budget with patient monitoring and cardiac assessment solutions that overlap with Littmann's use cases.
• GE Healthcare: GE Healthcare is a broad medical device incumbent spanning imaging, ultrasound, and patient monitoring. Its point-of-care ultrasound products compete for the same clinical decision-making moments that drive demand for high-end cardiology stethoscopes.
• Welch Allyn (now part of Baxter): Welch Allyn, now part of Baxter, manufactures a broad portfolio of physical diagnostic instruments including stethoscopes, otoscopes, and vital signs monitors. It overlaps with Littmann as part of a much wider diagnostic instrument portfolio sold to hospitals and clinics.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/Littmann
• LinkedInlinkedin.com/company/3m-littmann-stethoscopes

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Littmann