When was Rectangle Health founded?

Rectangle Health was founded in 1992.

Where is Rectangle Health located?

Rectangle Health is headquartered in Valhalla, United States.

Who is the current CEO of Rectangle Health?

Dominick Colabella of Rectangle Health.

How many employees does Rectangle Health have?

As of Aug 31, 2026, the latest employee count at Rectangle Health is 321.

Where does Rectangle Health rank among its competitors?

Rectangle Health ranks 33rd amongst 1489 active competitors, of which 137 are funded. It stands 11th in terms of total funding among its competitors. The most recent competitor to raise funding was Artera, which secured $65M in Dec, 2025.

Who are the top competitors of Rectangle Health?

Rectangle Health's top competitors include Electronic Care Corp, Huma and Siemens Healthineers. Among them, Artera secured the most recent funding round in December, 2025.

Rectangle Health - 2026 Company Profile, Team, Funding & Competitors

Rectangle Health is an acquired company based in Valhalla (United States), founded in 1992 by Zsolt Halmos. It operates as a Platform for managing payment processes. The company has 1489 active competitors, including 137 funded and 107 that have exited. Its top competitors include companies like Electronic Care Corp, Huma and Siemens Healthineers.

Company Details

Platform for managing payment processes. The software enables providers to control the payment process and integrate it into the practice management solution. The solution is HIPAA compliant and PA-DSS certified.

Website: rectanglehealth.com
Social
Email ID: *****@rectanglehealth.com
Phone Number: +1 **********

Key Metrics

Founded Year

1992

Location

Valhalla, United States

Stage

Acquired

Investors

Ares Capital Corporation & 1 more

Ranked

33^rd among 1489 active competitors

Employee Count

321 as on Aug 31, 2026

Similar Companies

Electronic Care Corp & 1754 more

Exit Details

Acquired by GI Partners (Nov 01, 2021)

View Rectangle Health's full profile

Rectangle Health got acquired by GI Partners and TA Associates on Nov 01, 2021.

Click here to take a look at Rectangle Health's acquisition in detail

Rectangle Health is a funded company. Rectangle Health has 2 institutional investors.

View details of Rectangle Health's funding rounds and investors

The founders of Rectangle Health is Zsolt Halmos.

Here are the details of Rectangle Health's key team members:

Zsolt Halmos: Founder of Rectangle Health and founder of 1 other company.
Contact Info: 2 email addresses
Dominick Colabella: CEO of Rectangle Health.

View details of Rectangle Health's Founder profiles and Board Members

Rectangle Health's employee count trend

Rectangle Health has 321 employees as of Aug 26. Here is Rectangle Health's employee count trend over the years:

Employee count trend for Rectangle Health

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Top competitors of Rectangle Health include Electronic Care Corp, Huma and Siemens Healthineers. Here is the list of Top 10 competitors of Rectangle Health, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Electronic Care Corp 1999, United States, Acquired	Cloud-based administrative suite solutions for healthcare providers	$159M	Intel, Tenaya Capital & 12 others	76/100
2nd	Huma 2011, London (United Kingdom), Series D	Developer of regulated software platforms for digital health care workflows	$355M	Leaps by Bayer, AstraZeneca & 100 others	76/100
3rd	Siemens Healthineers 2017, Forchheim (Germany), Public	Provider of medical imaging laboratory diagnostics and clinical digital solutions	-	Qatar Investment Authority, Skyviews Life Science ... & 3 others	75/100
4th	Confido Health 2022, Jersey City (United States), Series A	AI agents for healthcare administrative task automation and support	$13.2M	Blume Venture, Together & 10 others	66/100
5th	MedeAnalytics 1994, Richardson (United States), Acquired	Healthcare data analytics and AI solutions for improved patient care	$57M	Harvest Growth Capital, Silversmith Capital Partners ... & 7 others	65/100
6th	Cedar 2016, New York City (United States), Series D	Cloud-based payment solutions for the healthcare industry	$351M	Kinnevik, Thrive Capital & 28 others	65/100
7th	hc1.com 2011, Indianapolis (United States), Series B	Transforming labs into strategic assets with actionable data and healthcare solutions	$52.1M	Health Cloud Capital, Elevate Ventures & 3 others	64/100
8th	Artera 2015, Santa Barbara (United States), Series D	Provider of a patient communication platform for healthcare organizations	$110M	Lead Edge Capital, Techstars & 12 others	63/100
9th	Synthpop 2023, Cambridge (United States), Series A	AI-powered clinical management software	$25.8M	Peterson Ventures, Ansa & 11 others	63/100
10th	Infinitus 2019, San Francisco (United States), Series C	Developer of AI agents for automating healthcare-related phone calls and tasks	$103M	Kleiner Perkins, Coatue & 8 others	63/100
33rd	Rectangle Health 1992, Valhalla (United States), Acquired	Platform for managing payment processes	-	Ares Capital Corporation, TA Associates	54/100