Clarus Ventures

A life sciences venture capital firm focused on healthcare investments.

Venture Capital Active Cambridge, United States Est. 2005
Last updated 2026-07-20
Portfolio
1
in our dataset
Rounds participated
1
Rounds led
0
Rounds' value
$32.0M
total disclosed, rounds participated
Stages

About

Clarus Ventures was a life sciences venture capital firm founded in 2005 by a team of accomplished investment professionals. The firm focused on investing in the healthcare sector, particularly in drug development and biopharmaceuticals, with an emphasis on breakthrough therapies and medical innovations. Clarus Ventures managed over $2.6 billion in assets across multiple funds and employed a hands-on investment philosophy, often engaging in R&D sharing partnerships with pharmaceutical and biotech industries. In October 2018, Clarus Ventures was acquired by Blackstone to launch Blackstone Life Sciences.

Portfolio · 1

Investment activity

Portfolio by sector

Health Tech & Life Sciences1

Q&A

What is Clarus Ventures' primary investment focus?
Clarus Ventures primarily focuses on the Health Tech & Life Sciences sector, as evidenced by its portfolio company Tisbury Pharmaceuticals.
Can you name a notable portfolio company for Clarus Ventures?
A notable portfolio company for Clarus Ventures is Tisbury Pharmaceuticals, which develops treatments for open-angle glaucoma.
What is the most recent investment round Clarus Ventures participated in?
Clarus Ventures participated in a Series A round for Tisbury Pharmaceuticals in June 2017, which raised $32M.
What is Clarus Ventures' typical investment stage?
Clarus Ventures has participated in Series A rounds, such as the $32M investment in Tisbury Pharmaceuticals.
What is the typical check size for Clarus Ventures?
Clarus Ventures' investment range is $32M, based on its participation in the Series A round for Tisbury Pharmaceuticals.
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)

Identifiers & details

Founded2005-12

Acquisitions & public offerings

Acquired by Blackstone 2018-10