TransMedics

TransMedics

TMDX
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Private Company

Total funding raised: $141M

Market Cap: $2.4BFounded: 1998HQ: Andover, United States

Overview

TransMedics is on a mission to transform the standard of care in solid organ transplantation by replacing decades-old cold storage with its living organ preservation platform, the Organ Care System (OCS™). The company has achieved significant commercial milestones with FDA PMA approvals for its lung, heart, and liver systems and is executing a high-growth strategy through its integrated National OCS™ Program (NOP™). This strategy combines proprietary technology with comprehensive clinical services to drive adoption, increase transplant volumes, and establish a new ecosystem in organ logistics.

Organ TransplantationEnd-Stage Organ Failure

Technology Platform

The Organ Care System (OCS™) is a portable, normothermic perfusion platform that maintains donor hearts, lungs, and livers in a warm, functioning, and metabolically active state outside the body, enabling extended preservation, objective viability assessment, and long-distance transport.

Funding History

4
Total raised:$141M
IPO$75M
Series C$36M
Series B$20M
Series A$10M

Opportunities

The primary opportunity lies in dramatically increasing organ utilization rates by enabling the safe use of donation after circulatory death (DCD) hearts and extended-criteria donor organs.
The integrated National OCS Program (NOP™) creates a scalable, high-margin service model that transforms organ logistics and drives recurring revenue.

Risk Factors

Key risks include execution challenges in scaling the complex NOP™ clinical service network, potential long-term reimbursement pressure from payers, and competitive threats from lower-cost advanced cold storage systems.
The business is also dependent on continuous generation of positive real-world clinical data to sustain adoption.

Competitive Landscape

TransMedics holds a first-mover advantage with the only FDA-approved multi-organ normothermic perfusion platform. Primary competition comes from Paragonix (advanced cold storage) and XVIVO (hypothermic lung perfusion). The company's deep integration with transplant centers via its NOP™ service model creates a significant commercial moat.

Company Timeline

1998Founded

Founded in Andover, United States

2009Series B

Series B: $20.0M

2014Series C

Series C: $36.0M

2019IPO

IPO — $75.0M