Medable

Medable is a Decentralized Clinical Trials company founded in 2012 and based in Palo Alto, United States. It has raised $521M in total funding, most recently a Series D in 2021 at a $2.1B valuation.

Founded in 2012 in Palo Alto by Stanford-trained physician-scientist Michelle Longmire alongside Tim Smith and James Sas, Medable builds software that lets pharmaceutical sponsors and CROs run hybrid and fully decentralized clinical trials. Its platform spans electronic consent, electronic clinical outcome assessment (eCOA/ePRO), televisits, BYOD/wearables data capture and an AI-powered Study Studio that compresses study build timelines. Medable raised a $304M Series D in October 2021 led by Blackstone Growth, GSR Ventures and Tiger Global at a $2.1B valuation, bringing total capital raised to roughly $521M. The company has since gone through multiple rounds of layoffs as it pursues profitability and is investing heavily in agentic AI tools for trial operations.

Medable was the first decentralized clinical trial platform to reach unicorn status and remains one of the most widely deployed eConsent and eCOA stacks in pharma — making it a bellwether for whether DCT software can survive the post-pandemic normalization and the new wave of AI-native trial operations tools.

medable.com Decentralized Clinical Trials

United Statesprivate

At a glance

Total raised

$521M

last round series d

Headcount

201-500

approximate · public range

Headquarters

Palo Alto

United States

Founded

2012

14 years active

Status

Private

Decentralized Clinical Trials

Latest valuation

Funding history

Total raised

$521M

Rounds tracked

Latest stage

Series D

Latest valuation

$2.1B

Date	Stage	Amount	Valuation	Lead investors
Oct 26, 2021	Series D	$304M	$2.1B	Blackstone Growth, GSR Ventures, Tiger Global

How they make money

Founder backgrounds

James Sas

Co-founder

Co-founder and Chief Architect of Medable. Previously worked at Disney Interactive as a game programmer before shifting into healthcare technology. Founded OnThread, a company where he served as lead architect. Has a background in business intelligence frameworks and cloud systems design, with over 20 years of engineering experience spanning graph databases, NoSQL, and real-time web technologies. His technical architecture work at Medable underpins the platform's decentralized clinical trial infrastructure, including eConsent, eCOA/ePRO, and televisits operating across 60+ countries.

Michelle Longmire

Co-founder & CEO

A Stanford-trained physician-scientist who practiced as a dermatologist and conducted postdoctoral research at Stanford before founding Medable. She earned her medical degree from the University of New Mexico School of Medicine, completed her dermatology residency at Stanford, and remained on faculty. Witnessing firsthand how logistical barriers slowed clinical trial enrollment and drug development, she left clinical practice to build Medable — her first company — which became a leading decentralized clinical trial platform. A former champion soccer player, she has frequently cited team sports as a formative influence on her leadership, instilling a relentless, mission-first approach to accelerating therapies to patients.

Tim Smith

Co-founder

Prior to Medable, Smith co-founded and served as CTO of ClosedWon, an enterprise cloud development company he built from two people to over 25, delivering healthcare-focused cloud solutions. Earlier, he was Director of Operations at ZTEC Instruments. He studied at the University of Texas at Austin. That experience building cloud-native healthcare tools directly informed Medable's approach to decentralizing clinical trials with a no-code platform that cuts study setup from months to hours. Smith is also the named inventor on multiple Medable patents related to electronic consent and telehealth systems for clinical research.

Medable

At a glance

Funding history

How they make money

Founder backgrounds

James Sas

Michelle Longmire

Tim Smith

AI bull / bear

In the news

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Leadership

Products

eCOA+

Total Consent

Study Studio

Agent Platform

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