When was Rhaeos founded?

Rhaeos was founded in 2018 and raised its 1st funding round 2 years after it was founded.

Where is Rhaeos located?

Rhaeos is headquartered in Evanston, United States.

How many employees does Rhaeos have?

As of May 31, 2026, the latest employee count at Rhaeos is 19.

Is Rhaeos a funded company?

Rhaeos is a funded company, having raised a total of $12.8M across 13 funding rounds to date. The company's 1st funding round was a $***** Grant (prize money) round, raised on Jan 01, 2020.

When was the latest funding round of Rhaeos?

Rhaeos' latest funding was a $***** Grant (prize money) round on Apr 12, 2025, with participation from 1 investor.

Where does Rhaeos rank among its competitors?

Rhaeos ranks 26th amongst 632 active competitors, of which 85 are funded. It stands 8th in terms of total funding among its competitors. The most recent competitor to raise funding was Cala Health, which secured $50M in Apr, 2026.

Who are the top competitors of Rhaeos?

Rhaeos' top competitors include Ceribell, Cala Health and CoMind. Among them, Cala Health secured the most recent funding round in April, 2026.

Rhaeos - 2026 Company Profile, Team, Funding & Competitors

Company Details

Developer of a noninvasive device to monitor CSF and manage hydrocephalus. It offers a wireless non-invasive thermal flow sensor that is placed over the neck to monitor the ventricular shunt function and detect or measure CSF. Its data is transferred to an app to manage hydrocephalus.

Website: www.rhaeos.com/
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Key Metrics

Founded Year

2018

Location

Evanston, United States

Stage

Series A

Total Funding

$12.8M in 13 rounds

Latest Funding Round

Grant (prize money), Apr 12, 2025, $*****

Investors

Gener8tor & 16 more

Ranked

26^th among 632 active competitors

Employee Count

19 as on May 31, 2026

Similar Companies

Ceribell & 705 more

View Rhaeos' full profile

Rhaeos is associated with 1 legal entity given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
Rhaeos, Inc. CIN: 830709564 , United States, Active	Dec 31, 1999	-	17 (As on Dec 31, 2024)	-

Rhaeos has raised a total funding of $12.8M over 13 rounds. Its first funding round was on Jan 01, 2020. Its latest funding round was a Grant (prize money) round on Apr 12, 2025 for $*****. 1 investor participated in its latest round. Rhaeos has 17 institutional investors.

Here is the list of recent funding rounds of Rhaeos:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Apr 12, 2025	1421781	Grant (prize money)	6793853	1815532	3670977	3020899
Apr 04, 2025	1681374	Grant (prize money)	6358519	3851696	8417104	HHS
Mar 12, 2025	9277125	Grant (prize money)	5023194	6620260	5062112	National Science Foundation

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View details of Rhaeos's funding rounds and investors

The founders of Rhaeos are John Rogers, Siddharth Krishnan and Amit Ayer. Anna Lisa Somera is the CEO of Rhaeos.

Here are the details of Rhaeos' key team members:

John Rogers: Co-Founder & President of Rhaeos. They are also an angel investor in 1 startup and serve on the boards of 2 companies.
Siddharth Krishnan: Co-Founder of Rhaeos.
Amit Ayer: Co-Founder of Rhaeos.
Anna Lisa Somera: CEO of Rhaeos.
Contact Info: 1 email address

View details of Rhaeos's Founder profiles and Board Members

Rhaeos' employee count trend

Rhaeos has 19 employees as of May 26. Here is Rhaeos's employee count trend over the years:

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Top competitors of Rhaeos include Ceribell, Cala Health and CoMind. Here is the list of Top 10 competitors of Rhaeos, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Ceribell 2014, Mountain View (United States), Public	EEG system for the diagnosis of seizures	$188M	The Rise Fund, Ally Bridge Group & 11 others	69/100
2nd	Cala Health 2013, Stanford (United States), Series D	Developer of a wearable non-invasive neuromodulation device	$257M	Novartis, Johnson & Johnson Innovation – JJDC ... & 29 others	65/100
3rd	CoMind 2017, London (United Kingdom), Series A	Provider of a non-invasive brain-computer interface solution for various industries	$60M	Plural, Crane Venture Partners & 6 others	62/100
4th	NeuroVision 2010, Sacramento (United States), Series C	Provider of telehealth platform offering diagnostic and preventative neurology services	$20.4M	Wildcat Capital Management, Vspglobal & 6 others	56/100
5th	Brain.Space 2018, Tel Aviv (Israel), Series A	Digital brain activity analysis device for providers	$19.5M	Toyota Ventures, Mangrove Capital Partners ... & 2 others	54/100
6th	Shibaura Electronics 1953, Saitama (Japan), Acquired	Provider of temperature sensors for enterprises	-	-	52/100
7th	NeuroXess 1970, Huangpu (China), Seed	Provider of decision-support diagnostic solutions for healthcare organizations	$13.9M	Sequoia Capital, Sunda & 11 others	52/100
8th	Kernel 2016, Los Angeles (United States), Series C	Developer of multimodal brain measurement technology for neuromedicine	$158M	General Catalyst, Eldridge Industries & 3 others	51/100
9th	Mendi 2017, Stockholm (Sweden), Seed	Provider of wearable brain training devices	$8.21M	First Venture, futurology ventures & 8 others	50/100
10th	NeuroEM 2013, Tampa (United States), Series A	Developer of medical device a non-invasive treatment for cognitive decline	$9M	Bluelake, HHS & 1 others	48/100
26th	Rhaeos 2018, Evanston (United States), Series A	Developer of a noninvasive device to monitor CSF and manage hydrocephalus	$12.8M	Northwestern University, National Science Foundation ... & 15 others	43/100