Venture-Backed Startups

CardioSecur develops ECG technology, including a 4-electrode 12-lead ECG system and Vector-ECGi for electrophysiology. The products are aimed at cardiac diagnostics and advanced electrophysiology use.

1 investor

Cardiosense develops wearable sensing hardware and deep-learning algorithms that convert physiological signals into clinical insights for cardiovascular disease detection and management. Its FDA De Novo-cleared platform supports pressure-guided heart failure management for clinicians across hospital and home care settings.

6 investors

CardioSignal is a CE-marked Class IIb software-as-a-medical-device app that uses smartphone gyroscope and accelerometer sensors (gyrocardiography) to detect signs of atrial fibrillation in a one-minute measurement. It serves consumers for self-monitoring as well as care providers for population health programs and point-of-care clinical diagnostics, and is available across the UK, Norway, Switzerland and several EU countries.

4 investors

Cardiotrack operates Ethos.AI, an AI-driven platform for preventive and insurance policy-based medical screenings, offering at-home tests including ECGs and stress tests. It serves insurers through a network of 1,600+ diagnostic labs across 600+ cities to automate health screening workflows.

1 investor

Cardiovalve develops a transcatheter valve replacement system designed to fit both mitral and tricuspid anatomies via transfemoral delivery, avoiding open heart surgery. The device targets structural heart disease and is currently restricted to research use.

1 investor

0 investors

0 investors

Medical technology company focused on tissue regeneration and repair using proprietary scaffold materials.

1 investor

CardioVia develops ViaOne, an FDA-cleared epicardial access device that creates a pathway to the heart's surface using a blunt tip with a concealed needle to reduce heart perforation risk. The device supports cardiac interventions such as arrhythmia ablation, epicardial lead and pacemaker implantation, and targeted drug, stem cell, and gene delivery.

1 investor

Cardiovolt is an AI platform that analyzes standard 12-lead ECG signals and images to detect subtle digital biomarkers, predicting cardiovascular disease risk before symptoms appear. It is aimed at healthcare systems and clinical settings for earlier cardiovascular risk assessment, though the company states it is not yet ready for clinical use.

1 investor

0 investors

0 investors

Cardiva Medical, part of Haemonetics, develops the VASCADE family of vascular closure systems, including venous and arterial closure devices used in cardiovascular procedures. It is part of a medical technology company serving hospitals and blood collection centers with blood management, plasma collection, hemostasis analysis, and vascular closure products.

2 investors

Cardlay is a Danish fintech that provides card management, payment automation, and expense management software for banks and financial institutions. The platform enables businesses to manage corporate cards, track spending, handle travel expenses, and automate VAT reclamation.

2 investors

Cardless provides a modular credit card platform that allows companies to embed credit products directly into their applications and websites. The platform offers APIs, prebuilt components, and end-to-end infrastructure for managing credit card programs within a brand's own user experience.

9 investors

Cardly offers a service for businesses to send physical greeting and note cards, letting companies use their own logo and artwork or choose from a library of designs by independent artists. It supports custom-branded card backs, no minimum order requirements, and flexible pay-as-you-go or prepay pricing.

1 investor

Cardlytics operates a commerce media platform that uses card-linked purchase data to deliver targeted offers and closed-loop measurement for marketers and advertisers, and personalized rewards programs for banks and publishers. It serves brands, marketers, and financial institutions across the US and UK through its card-linked offer network.

5 investors

CardMonster is a South Korean studio that makes casual games in both physical and digital formats, including board games, trading card games, and tabletop titles. The company typically develops and tests a game concept as a physical product first, then ports validated designs to digital versions using its in-house development platform.

1 investor

CardMunch turned photographs of paper business cards into digital contact records. The mobile app captured card images, transcribed the details, kept separate address books, and synced the resulting contacts to users' devices.

2 investors

CardNexus is a platform for trading card game (TCG) enthusiasts that enables collection management, trades, and community connection across multiple games and card games.

1 investor

Cardo AI provides a platform for asset-based finance that manages data, waterfalls, cash flows, and reporting across structured credit deals such as ABS, CLOs, warehouse facilities, and forward flows. It serves institutional investors and lenders running complex credit structures, unifying front- and middle-office workflows and integrating with core systems and data warehouses like Snowflake and Databricks.

1 investor

0 investors

CarDoor is a platform that simplifies the car selling process for Canadians by connecting sellers with buyers and handling transactions.

1 investor

Cardpool operates an online marketplace for trading gift cards between buyers and sellers, offering discounts on purchases, cash payouts for sales, and options to exchange for Amazon gift cards or donate to charity.

1 investor