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Cooler Heads

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An FDA-cleared, portable scalp cooling system for cancer patients to minimize chemotherapy-induced hair loss

San Diego, United StatesFounded 2018Health Tech & Medtech
Valuation $50–100M Last recorded · 2025
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Cooler Heads and the history behind them.

About Cooler Heads

Cooler Heads was founded in 2018 by Kate Dilligan, a tech entrepreneur and breast cancer survivor. Dilligan's personal journey with breast cancer treatment, where she experienced the challenges of using an antiquated scalp cooling system, directly inspired the formation of the company. Her background in technology combined with her patient experience provided the foundation for developing a more user-friendly and effective solution to a common and distressing side effect of chemotherapy.

The company's core product is Amma™, a portable and FDA-cleared scalp cooling system. This device is designed to help prevent hair loss in cancer patients undergoing chemotherapy. By cooling the scalp to a specific temperature, the system constricts the blood vessels, reducing the amount of chemotherapy drugs that reach the hair follicles. The portability of the Amma™ unit distinguishes it from older, more cumbersome systems, allowing for greater patient comfort and convenience. It is the only portable, FDA-cleared device of its kind available in the market.

Cooler Heads operates within the medical device sector, targeting oncology patients and healthcare providers. The business model appears to involve the sale or leasing of the Amma™ device to hospitals and cancer treatment centers, as well as potentially direct-to-patient services. The company also provides resources and support for patients preparing for scalp cooling treatment, indicating a patient-centric approach.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2018
Headquarters
San Diego, United States
Employees
43
Open positions
None listed
Dealroom signal
86.9/100
Industry
Health
Sub-industry
Medical Devices
Sector
Health Tech & Medtech, Oncology, Hard Tech, DT and LS, science-based
Technology
Deep Tech

Funding history

5 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES A✓Equity / VC Jul 2025 $11M $44M Robin Hood Ventures · Golden Seeds · Mutual Capital Partners · Scientific Health Development Partners ↗
EARLY VC✓Equity / VC Apr 2023 $8M $32M Gaingels · Teal Ventures · Robin Hood Ventures · Crescent Ridge ↗
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Growth signals

Cooler Heads website traffic

Latest recorded traffic for Cooler Heads is 3.8K monthly website visits, up 153.3% over the last three months. Cooler Heads's team grew 19.4% over the past year.

Latest monthly visits3.8K 3-month web change+153.3% 1-year team growth+19.4%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

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Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

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

Investors

20 investors on the cap table

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

Seed2 investors entered at this stage

  • Aloft VC (Formerly Anathem Ventures)
  • Teal Ventures

Series A10 investors entered at this stage

  • Gaingels
  • Robin Hood Ventures
  • Crescent Ridge
  • NuFund Venture Group
  • Anathem Ventures
  • Mutual Capital Partners
  • Golden Seeds
  • Scientific Health Development Partners
  • California Innovation Fund
  • Healthcare Innovation Pitch

Other known investors8 additional known investors

Team profiled 9 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 3 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
1 countries with
team presence
🇺🇸 United States100%
1 country shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Cooler Heads 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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