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iZumi Bio

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Induced pluripotent stem cell (iPS) therapeutics developer

San Francisco, United StatesFounded 2007Marketing
Valuation $100–250M Last recorded · 2009
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
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About iZumi Bio

iZumi Bio, Inc. was a biotechnology firm specializing in induced pluripotent stem cell (iPS) technology to develop new therapeutics. Founded in 2007 and based in South San Francisco, California, the company focused on creating patient-specific cell lines for drug discovery and regenerative medicine. Its primary goal was to industrialize iPS technology for cellular reprogramming and directed differentiation of patient cells. The company had two main areas of focus: developing novel stem cell lines as alternatives to animal models in drug discovery and engineering these cells to treat neurodegenerative disorders.

The company's scientific team included notable researchers like John T. Dimos, Ph.D., whose work involved differentiating iPS cells from ALS patients into motor neurons. Thane Kreiner, Ph.D., served as the President and CEO, and John Walker later took on the CEO role. iZumi Bio secured $20 million in a Series A funding round in April 2009 from investors including Highland Capital Partners and Kleiner Perkins Caufield & Byers. In July 2009, iZumi Bio merged with Pierian to form iPierian, which was subsequently acquired by Bristol Myers Squibb in 2014.

Source: Dealroom company data

At a glance

Status
Acquired
Founded
2007
Headquarters
San Francisco, United States
Employees
94
Open positions
None listed
Dealroom signal
43.1/100
Industry
Media, Marketing
Sector
Marketing, Search Engine, Biotechnology, Video
Client focus
b2b

Funding history

2 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITION✓Exit Jul 2009 $0 — iPierian —
SERIES A✓Equity / VC Apr 2009 $20M $80M Kleiner Perkins · Highland Capital Partners —
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Growth signals

iZumi Bio website traffic

Latest recorded traffic for iZumi Bio is 150 monthly website visits. iZumi Bio's team grew 129.3% over the past year.

Latest monthly visits150 1-year team growth+129.3%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

3 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A2 investors entered at this stage

Other known investors1 additional known investor

  • iPierian
Team profiled 1 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 1 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
6 countries with
team presence
🇺🇸 United States25%
🇯🇵 Japan25%
🇬🇧 United Kingdom12.5%
🇨🇳 China12.5%
🇺🇦 Ukraine12.5%
Top 5 of 6 shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about iZumi Bio on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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