Latest round

Series B

Last raised

Nov 2022

Total raised

$45M

Investors

7

About Ostro

, doing business as Ostro, formerly known as RxDefine, provides a platform that creates personalized healthcare journeys. In March 2026, Veeva Systems acquired Ostro from Havas Ventures, Byers Capital, Bling Capital, Trust Ventures, Caffeinated Capital, Founders Fund, Greycroft, and RRE Ventures for USD 100 million in cash and long-term equity retention grants. The company was founded by Chase Feiger, Ahmed Elsayyad, and Ryan Junee. The company offers an Ostro platform that consists of Ostro navigate and helps in finding better treatment, and Ostro attribute which is an analytics product that connects brand marketing campaigns to clinical outcomes. Additionally, it provides Ostro consult which is a telehealth connection that connects patients with experienced and qualified clinicians. Furthermore, it provides a solution to pharmaceutical companies, medical devices, digital therapeutic companies, and diagnostic tool companies. The acquisition enables Veeva Systems to integrate Ostro’s AI-based brand engagement platform into its Commercial Cloud to connect online and field interactions for life sciences customers.

Who invested in Ostro

7 investors across 2 rounds

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Funding rounds

  1. Series B

    Nov 30, 2022

    Amount

    $45M

    Investors

    Locked

  2. Series A

    Dec 1, 2019

    Amount

    Undisclosed

    Investors

    Locked

Questions about Ostro

Who invested in Ostro?

Ostro has 7 investors on record across 2 venture rounds. Sign up free to see every VC on the cap table and the rounds they joined.

How much funding has Ostro raised?

Ostro has raised 2 venture rounds. Sign up free to see how much each round raised and the total.

When did Ostro last raise money?

Ostro's most recent round on record is a Series B, in Nov 2022.

What does Ostro do?

, doing business as Ostro, formerly known as RxDefine, provides a platform that creates personalized healthcare journeys.

Where is Ostro headquartered?

Ostro is headquartered in Miami, US.

Which VCs invest in companies like Ostro?

Among active investors with capital left to deploy, Andreessen Horowitz, Founders Fund, Accel and Thrive Capital back healthcare it companies at Ostro's stage. Their profiles are linked below.

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