Fundraising Fox

Cooler Heads

San Diego, US · Founded 2018 · Delaware corporation · 8 known investors

coolerheads.com ↗

Cooler Heads develops scalp cooling technology to prevent hair loss in cancer patients undergoing chemotherapy. The company manufactures the Amma scalp cooling system for oncology clinics and hospitals.

HealthtechMedical Devices

Founders & leadership

Cooler Heads was founded in 2018 by Kate Dilligan.

KDKate Dilligan
Kate DilliganinFounder & CEO

Board

MGMaria Gonzalez-Blanch
Maria Gonzalez-BlanchinBoard directorInvestment Committee Member at Ad Astra Ventures
MSMICHAEL SCHOTZINGER
MICHAEL SCHOTZINGERBoard directorSenior Associate at Scientific Health Development
LT
LIZ TODIABoard director
LZLIZ ZAMBORY
LIZ ZAMBORYinBoard MemberPrincipal at Mutual Capital Partners
JP
JASON PESTERFIELDBoard director

Investors · 8

Ad Astra Ventures
Aloft VCSan Franciscovia Crystal McKellar · inferred
AstiaSilicon Valley
CALIFORNIA INNOVATIONBerkeley
Golden SeedsFlushing · $250K – $2M
Mutual Capital PartnersCleveland · $1M
Robin Hood VenturesPhiladelphia · $250K – $1Mvia Pitou Devgon · inferred
Scientific Health DevelopmentDallas · $2M

Reported raises · per SEC filings

Form D private placements

$22M disclosed across 3 rounds · 2023–2026

▶$3.3MraisedJul 2026 · 35 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • KATHLEEN DILLIGANExecutive Officer, Director
  • MARIA GONZALEZ-BLANCHDirector
  • LIZ ZAMBORYDirector
  • MICHAEL SCHOTZINGERDirector
  • JASON PESTERFIELDDirector
Offering amount
$6M
Amount sold
$3.3M
First sale
Jul 2026
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$10.6MraisedMay 2025 · 42 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • KATHLEEN DILLIGANExecutive Officer, Director
  • MARIA GONZALEZ-BLANCHDirector
  • MICHAEL SCHOTZINGERDirector
  • LIZ TODIADirector
Offering amount
$11.3M
Amount sold
$10.6M
First sale
Apr 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$8.2MraisedApr 2023 · 95 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Maria Gonzalez-BlanchDirector
  • Kathleen DilliganExecutive Officer, Director
Offering amount
$9.3M
Amount sold
$8.2M
First sale
Mar 2023
Incorporated
Corporation, Delaware, 2018
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Competitors · 2

by search overlap
American Cancer Society (ACS)31 shared keywordsThe American Cancer Society is a nonprofit cancer-fighting organization that combats cancer through advocacy, research, and patient support. It provides information, guidance, caregiver resources, screening guidance, and clinical trial navigation for cancer patients, families, and caregivers, and funds cancer research.
MD Anderson Cancer Center21 shared keywordsUT MD Anderson is a cancer hospital providing cancer treatment, prevention, clinical care, and research, including new therapies and clinical trials for cancer patients. It is ranked among the top hospitals in the U.S. for cancer care.

Companies competing with Cooler Heads for the same Google search keywords, organic and paid, via search-intersection analysis.

Non-dilutive funding · 2 SBIR/STTR awards

Federal grants — no equity taken
AgencyPhaseYearAmount
National Institutes of Health (NIH)National Institutes of HealthPhase II2022$2.1M
National Institutes of Health (NIH)National Institutes of HealthPhase I2021$211K

Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.

In the news

Cooler Heads Raises $11M Series A for Chemotherapy Hair Loss Prevention Device | Femtech Insiderfemtechinsider.com · Jul 2025

Frequently asked questions

What does Cooler Heads do?
Cooler Heads develops scalp cooling technology to prevent hair loss in cancer patients undergoing chemotherapy. The company manufactures the Amma scalp cooling system for oncology clinics and hospitals.
Who founded Cooler Heads?
Cooler Heads was founded by Kate Dilligan in 2018.
Who are Cooler Heads's investors?
Cooler Heads's investors include Ad Astra Ventures, Aloft VC, Astia, CALIFORNIA INNOVATION, Golden Seeds, Mutual Capital Partners, Robin Hood Ventures, Scientific Health Development.
How much funding has Cooler Heads raised?
Cooler Heads has disclosed $22M raised across 3 rounds.
Where is Cooler Heads headquartered?
Cooler Heads is headquartered in San Diego, US.