SIS-Schwager Group

What SIS-Schwager Group does

SIS Medical AG, the operating subsidiary of SIS-Schwager Group, is a Swiss privately-held medical device company headquartered in Frauenfeld, Switzerland, that develops, manufactures, and commercializes percutaneous transluminal coronary angioplasty (PTCA) balloon catheters and related accessories for interventional cardiology. The company focuses on the niche of complex percutaneous coronary intervention (PCI) where calcified coronary lesions present lesion-preparation challenges that standard balloons cannot adequately address. Core products are the OPN NC super-high-pressure non-compliant dilatation catheter (35 atm rated burst pressure) built on proprietary TWIN-Wall layer technology, the NIC family of ultra-low-profile non-compliant balloons (NIC Nano hydro at 0.85mm and NIC 1.1 hydro) for tight lesions and chronic total occlusions, the EasyT high-pressure (21 atm RBP) balloon for lesion preparation, the Xtrac aspiration catheter, and an Inflation Device accessory. All devices are designed and manufactured in Switzerland under MDR (EU) 2017/745 certification. The customer base consists of interventional cardiologists, heart centers, and hospital catheterization laboratories globally; the company reports commercialization in over 60 countries with more than 250,000 cumulative devices delivered.

The business model is direct enterprise hardware sales of Class III medical devices to healthcare providers, supported by clinical-evidence dissemination and a heavy physician-education GTM motion (sponsored symposia at TCT, EuroPCR, DGK, LUCCA, EuroCTO, and ML CTO Academy plus hands-on complex PCI courses at hospital partners such as Luzerner Kantonspital Heart Center, Universitätsmedizin Mannheim, Herzzentrum Dresden, Klinikum Fürth, Segeberger Kliniken, and international sites including Cardiac and Vascular Catheterization Center Iraq). Pricing is not publicly disclosed and is handled through a dedicated sales department ([email protected]). The company is owned by German MedTech-focused private equity firm SHS Investment Group (which acquired it in 2015) and in January 2026 added Claret Capital Partners as a growth-debt partner to fund international expansion and innovation. The leadership team was refreshed in 2024–2025 with a new CEO (Dr. Thomas Kraft, September 2024) and a new CTO (Dr. Katrin Sternberg, May 2025); the management team is described as collectively representing over 150 years of MedTech experience. Headcount is reported in the 11–50 range, with a wholly-owned German sales subsidiary (SIS Medical GmbH, Kusterdingen).

Name

SIS-Schwager Group

Legal name

SIS Medical AG

Website

https://sis-medical.com

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

11–50 employees

Short description

SIS Medical AG is a Swiss medical device company that develops, manufactures, and globally commercializes PTCA balloon catheters for interventional cardiologists treating calcified coronary lesions and chronic total occlusions.

Ownership category

akta.pro rank

Product category

Interventional Cardiology Medical Devices

NAICS

Surgical and Medical Instrument Manufacturing (339112), Electromedical and Electrotherapeutic Apparatus Manufacturing (334510), Surgical Appliance and Supplies Manufacturing (339113)

SIC

Surgical & Medical Instruments & Apparatus (3841), Electromedical & Electrotherapeutic Apparatus (3845)

akta.pro primary industry

Interventional Cardiology (PCI/Structural Heart) (HLAKABAB)

akta.pro secondary industry

Coronary Stents & Drug-Eluting Technologies (HLAHAFAA)

Keywords

• Interventional cardiology devices
• PTCA balloon catheters
• Vascular disease treatment
• Cardiac medical devices
• Calcified lesion treatment

Headquarters

HQ city

Frauenfeld

HQ country

Switzerland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Medical Device Sales: SIS Medical generates revenue through the sale of PTCA balloon catheters and related cardiovascular devices to healthcare providers, hospitals, and cardiology clinics globally.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

SIS Medical AG develops, manufactures, and sells interventional cardiology devices for the treatment of calcified coronary lesions, with a portfolio centered on super-high-pressure PTCA balloon catheters. The flagship product is the OPN NC non-compliant dilatation catheter, which uses proprietary TWIN-Wall technology at 35 atm rated burst pressure to dilate severely calcified, complex, and CTO lesions during PCI. The portfolio also includes the NIC Nano hydro (0.85 mm) and NIC 1.1 hydro balloons for tight lesions, the EasyT high-pressure balloon, the Xtrac aspiration catheter, and an Inflation Device, all designed and produced in Switzerland and sold to hospitals, heart centers, and cardiology clinics worldwide.

Product overview

SIS Medical AG develops and manufactures a portfolio of PTCA (percutaneous transluminal coronary angioplasty) balloon catheters and related devices for interventional cardiology. The core product is OPN NC, a super-high-pressure (35 atm) non-compliant balloon with TWIN-Wall technology for treating severely calcified lesions. The portfolio includes the NIC family (Nano hydro at 0.85mm and 1.1 hydro) for small lesions and CTOs, EasyT high-pressure balloons for lesion preparation, Xtrac aspiration catheters, and an Inflation Device. All products are designed and manufactured in Switzerland with a focus on plaque modification and lesion preparation in complex PCI procedures.

Differentiator

Problem solved

Functional benefit

Brands

• OPN NC: Super-high pressure PTCA non-compliant Dilatation Catheter with Twin-Wall technology, rated burst pressure of 35 atm for complex PCI procedures
• NIC
• EasyT
• Inflation Device
• Xtrac

Products and services

• OPN NC Super-high pressure PTCA non-compliant dilatation catheter with 35 atm rated burst pressure (RBP) and TWIN-Wall technology, designed for interventional cardiologists performing complex PCI procedures to dilate severely calcified and CTO coronary lesions safely.
• NIC Nano hydro Non-compliant 0.85 mm ultra-small profile balloon catheter with excellent trackability, intended for interventional cardiologists treating the tightest coronary lesions and chronic total occlusions.
• NIC 1.1 hydro Non-compliant hydrophilic coated balloon catheter designed for optimum performance to handle the toughest coronary lesions, used by interventional cardiologists in PCI procedures.
• EasyT Real non-compliant PTCA dilatation balloon catheter with high 21 atm RBP, combining excellent trackability and deliverability for lesion pre-dilatation and soft plaque modification in PCI procedures.
• Xtrac Aspiration catheter used by interventional cardiologists for thrombectomy and thrombus removal during interventional cardiology procedures.
• Inflation Device Inflation device for balloon catheter procedures, enabling precise pressure control during PTCA for interventional cardiologists and catheterization lab staff.

Quantifiable outcome

• 85.0% median stent expansion vs 84.0% for IVL (non-inferior)
• +3 more outcomes

Named customers6 records

Segments2 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered minor.

• VP | MED Group (Vascular Perspectives Ltd.)minorChannel Partner/ Reseller/ DistributorPartner visited SIS Medical headquarters in Switzerland to learn about catheter manufacturing processes; collaboration in distributing interventional cardiology products.
• RADPAD Radiation ProtectionminorGTM or Marketing PartnerCo-participation at CVI Congress in Texas, USA; joint marketing at OPN NC lunch symposium demonstrating calcium modification during complex PCI procedures.
• ML CTO AcademyminorStrategic or Co-development PartnerSIS Medical sponsored ML CTO Academy 2026 edition; participated with booth presence and presentations in main arena.

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Abbott Vascular: Major interventional cardiology player with coronary stents, Dragonfly OCT imaging, and the Diamondback 360 atherectomy system (via Cardiovascular Systems acquisition). Competes across the full lesion preparation workflow that SIS Medical targets.
• Boston Scientific: Global interventional cardiology incumbent with broad portfolio across PCI including ROTAPRO atherectomy, stents, and imaging. Competes with SIS Medical for hospital wallet share and physician mindshare in complex PCI accounts.
• Philips (Image-Guided Therapy): Provides IVUS and angiography systems used alongside lesion preparation devices in complex PCI. Complements rather than directly competes with OPN NC but competes for hospital capital budgets in interventional cardiology.
• Becton Dickinson (BD): Large diversified medical device company with peripheral and coronary intervention portfolio. Comparable as a broad incumbent in the cardiovascular device space where SIS Medical operates.
• Teleflex: Interventional cardiology and vascular access player with specialty catheters and balloons. Comparable to SIS Medical's NIC and EasyT product lines in targeting niche lesion preparation use cases.
• Medtronic: Broad cardiovascular incumbent with coronary stent systems, balloon catheters, and atherectomy devices. Competes with SIS Medical in lesion preparation and broader PCI procedure economics.

Others

• Integer Holdings: Contract manufacturer of medical devices including balloon catheters. Adjacent participant in the interventional cardiology supply chain rather than a direct competitor, but representative of the broader MedTech manufacturing ecosystem in which SIS Medical operates.
• Surmodics: Provider of hydrophilic and drug coating technologies used on balloon catheters. Operates as an upstream enabler/supplier to PTCA balloon manufacturers including SIS Medical and comparable smaller competitors.

Direct peers

• Penumbra: Makes aspiration catheters (Indigo and Lightning) for thrombectomy — directly comparable to SIS Medical's Xtrac aspiration catheter. Both serve interventional cardiology with mechanical aspiration solutions and compete for hospital procedure slots.
• Shockwave Medical (Johnson & Johnson): Maker of intravascular lithotripsy (IVL) catheters for calcified lesion preparation — the directly competitive modality to OPN NC. Now owned by Johnson & Johnson, Shockwave is the dominant incumbent against which SIS Medical benchmarks itself in the VICTORY trial.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/sis_medical
• LinkedInlinkedin.com/company/sis-medical---swiss-interventional-systems/?viewAsMember=true

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries1 record

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 SIS-Schwager Group