When was CoolSem Technologies founded?

CoolSem Technologies was founded in 2025 and raised its 1st funding round 1 year after it was founded.

Where is CoolSem Technologies located?

CoolSem Technologies is headquartered in Eindhoven, Netherlands.

Who is the current CEO of CoolSem Technologies?

Andre van Geelen of CoolSem Technologies. They have also founded 1 company.

How many employees does CoolSem Technologies have?

As of Jul 31, 2026, the latest employee count at CoolSem Technologies is 14.

Is CoolSem Technologies a funded company?

CoolSem Technologies is a funded company, having raised a total of $***** in its 1st and only funding round, a Seed round on Jan 19, 2026.

When was the latest funding round of CoolSem Technologies?

CoolSem Technologies' latest funding was a $***** Seed round on Jan 19, 2026, with participation from 4 investors.

Where does CoolSem Technologies rank among its competitors?

CoolSem Technologies ranks 7th amongst 20 active competitors, of which 9 are funded. It stands 7th in terms of total funding among its competitors. The most recent competitor to raise funding was ZutaCore, which secured $100M in Jun, 2026.

Who are the top competitors of CoolSem Technologies?

CoolSem Technologies' top competitors include Phononic, Akash Systems and ZutaCore. Among them, ZutaCore secured the most recent funding round in June, 2026.

CoolSem Technologies - 2026 Company Profile, Team, Funding & Competitors

Company Details

Wafer-level thermal management that unlocks next-generation semiconductor and photonic performance

Website: www.coolsemtechnologies.com/
Email ID: *****@coolsemtechnologies.com
Phone Number: +31 **********

Key Metrics

Founded Year

2025

Location

Eindhoven, Netherlands

Stage

Seed

Latest Funding Round

Seed, Jan 19, 2026, $*****

Investors

HTGF & 3 more

Ranked

7^th among 20 active competitors

Employee Count

14 as on Jul 31, 2026

Similar Companies

Phononic & 8 more

View CoolSem Technologies' full profile

CoolSem Technologies has raised funding over 1 round. Its latest funding round was a Seed round on Jan 19, 2026 for $*****. 4 investors participated in its latest round. CoolSem Technologies has 4 institutional investors.

Here is the list of recent funding rounds of CoolSem Technologies:

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Jan 19, 2026	6932073	Seed	8900367	1418757	2156533	7794334

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View details of CoolSem Technologies's funding rounds and investors

The founders of CoolSem Technologies are Andre van Geelen, Robbert Van Der Waal and Pieter Heersink. Andre van Geelen is the CEO of CoolSem Technologies.

Here are the details of CoolSem Technologies' key team members:

Andre van Geelen: Co-Founder & CEO & CTO of CoolSem Technologies.
Robbert Van Der Waal: Co-Founder & CSO of CoolSem Technologies.
Pieter Heersink: Co-Founder & CCO of CoolSem Technologies.

View details of CoolSem Technologies's Founder profiles and Board Members

CoolSem Technologies' employee count trend

CoolSem Technologies has 14 employees as of Jul 26. Here is CoolSem Technologies's employee count trend over the years:

Employee count trend for CoolSem Technologies

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Top competitors of CoolSem Technologies include Phononic, Akash Systems and ZutaCore. Here is the list of Top 10 competitors of CoolSem Technologies, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Phononic 2009, Durham (United States), Series F	Providing solid state thermal management solutions	$230M	Oak Investment Partners, Venrock & 19 others	70/100
2nd	Akash Systems 2016, San Francisco (United States), Series A	Developer of thermal management solutions integrating diamonds with semiconductor technology	$17.6M	Founders Fund, ACME & 23 others	62/100
3rd	ZutaCore 2016, San Jose (United States), Series C	Provider of waterless liquid cooling solutions for artificial intelligence and computing	$100M	Mitsubishi, Carrier & 11 others	59/100
4th	Accelsius 2022, Austin (United States), Series B	Developer of two-phase direct-to-chip liquid cooling systems for data centers	$169M	Johnson Controls, Legrand & 1 others	58/100
5th	Calyos 2012, Charleroi (Belgium), Series A	Developer of passive two-phase cooling systems for electronics	$12.9M	Theodorus, Sambrinvest & 4 others	43/100
6th	Thermistance 2020, Pune (India), Seed	Provider of thermal management solutions and consultancy for electronic cooling	$507K	Spectrum Impact, ASME & 27 others	39/100
7th	CoolSem Technologies 2025, Eindhoven (Netherlands), Seed	CoolSem \| Pushing the limits of semiconductor performance	-	HTGF, KBC Focus Fund & 2 others	37/100
8th	JJ Cooling Innovation 2014, Lausanne (Switzerland), Funding Raised	Developer of passive and active high-power electronics cooling systems	-	Innosuisse	30/100
9th	Smart High Tech 2006, Gothenburg (Sweden), Funding Raised	Provider of graphene-enhanced materials for thermal management applications	-	Europa	29/100
10th	Radian 1974, Santa Clara (United States), Unfunded	Manufacturer of custom and standard heatsinks for thermal management. They design and manufacture heatsinks using various materials and techniques, including vapor chambers and heat pipes, to meet diverse cooling needs. The company offers both custom solutions tailored to specific client requirements and a selection of off-the-shelf products. Their services encompass thermal analysis and prototype machining to ensure optimal performance. They also provide various heatsink accessories and hardware components.	-	-	29/100