When was Inbox Health founded?

Inbox Health was founded in 2014 and raised its 1st funding round within a year of its incorporation.

Where is Inbox Health located?

Inbox Health is headquartered in New Haven, United States.

Who is the current CEO of Inbox Health?

Blake Walker of Inbox Health. They have also founded 1 company.

How many employees does Inbox Health have?

As of Jun 30, 2026, the latest employee count at Inbox Health is 133.

Is Inbox Health a funded company?

Inbox Health is a funded company, having raised a total of $68.4M across 9 funding rounds to date. The company's 1st funding round was a $***** Seed round, raised on Mar 17, 2014.

When was the latest funding round of Inbox Health?

Inbox Health's latest funding was a $***** Conventional Debt round on Sep 15, 2025, with participation from 1 investor.

Where does Inbox Health rank among its competitors?

Inbox Health ranks 14th amongst 420 active competitors, of which 81 are funded. It stands 3rd in terms of total funding among its competitors. The most recent competitor to raise funding was Fathom, which secured an undisclosed amount in May, 2026.

Who are the top competitors of Inbox Health?

Inbox Health's top competitors include Infinx, R1 RCM and RapidClaims. Among them, Fathom secured the most recent funding round in May, 2026.

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

Inbox Health is a series B company based in New Haven (United States), founded in 2014 by Simon Kaluza, Blake Walker, Erroin Martin and Chris Walker. It operates as a Cloud-based medical billing and payment management solution for healthcare companies. Inbox Health has raised $68.4M in funding from investors like Connecticut Innovations, Healthy Ventures and Commerce Ventures. The company has 420 active competitors, including 81 funded and 25 that have exited. Its top competitors include companies like Infinx, R1 RCM and RapidClaims.

Company Details

Inbox Health offers a cloud-based medical billing and payment management solution for healthcare companies. It features a data-driven platform that automates and personalizes the entire patient billing communication process. It creates practice management tools that improve revenue cycle management, insurance eligibility, patient balance estimates, and patient invoicing. It also offers digital insurance cards for patients to provide updates related to medical billing and payment transactions. The company covers insurance and benefits for healthcare organizations.

Website: www.inboxhealth.com/
Social
Email ID: *****@inboxhealth.com
Phone Number: +1 **********

Key Metrics

Founded Year

2014

Location

New Haven, United States

Stage

Series B

Total Funding

$68.4M in 9 rounds

Latest Funding Round

Conventional Debt, Sep 15, 2025, $*****

Investors

Connecticut Innovations & 17 more

Ranked

14^th among 420 active competitors

Employee Count

133 as on Jun 30, 2026

Similar Companies

Infinx & 511 more

View Inbox Health's full profile

Inbox Health has raised a total funding of $68.4M over 9 rounds. Its first funding round was on Mar 17, 2014. Its latest funding round was a Conventional Debt round on Sep 15, 2025 for $*****. 1 investor participated in its latest round. Inbox Health has 16 institutional investors and 2 angel investors.

Here is the list of recent funding rounds of Inbox Health:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Sep 15, 2025	7603857	Conventional Debt	1077745	2552779	8273457	1115364
Jul 14, 2025	7433643	Series B	1866542	2680445	6074591	Ten Coves Capital
May 04, 2023	3557002	Series B	9181017	6990346	Ten Coves Capital	Commerce Ventures & 4 more

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View details of Inbox Health's funding rounds and investors

The founders of Inbox Health are Simon Kaluza, Blake Walker, Erroin Martin and Chris Walker. Blake Walker is the CEO of Inbox Health.

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

Simon Kaluza: Co-Founder & CTO of Inbox Health and founder of 1 other company.
Contact Info: 1 email address
Blake Walker: CEO & ex-Co-Founder of Inbox Health and founder of 1 other company.
Contact Info: 1 email address
Erroin Martin: Former Co-Founder of Inbox Health and founder of 1 other company.
Contact Info: 1 email address
Chris Walker: Former Co-Founder of Inbox Health.

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

Inbox Health's employee count trend

Inbox Health has 133 employees as of Jun 26. Here is Inbox Health's employee count trend over the years:

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Top competitors of Inbox Health include Infinx, R1 RCM and RapidClaims. Here is the list of Top 10 competitors of Inbox Health, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Infinx 2010, Spring (United States), Series D	Provider of platform for revenue cycle management	$186M	Norwest Venture Partners, Norwest & 3 others	69/100
2nd	R1 RCM 2003, Chicago (United States), Acquired	Provider of AI-driven solutions for healthcare revenue cycle management and operations	-	Ares Capital Corporation, Khosla Ventures ... & 3 others	66/100
3rd	RapidClaims 2023, Manhattan (United States), Series A	Provider of AI-powered platform for revenue cycle management and intelligence	$11.1M	Accel, Together & 13 others	66/100
4th	Volantio 2008, Atlanta (United States), Series A	AI-enabled inventory optimization and e-commerce solutions for airlines	$9.35M	Qantas, International Airlines Group & 10 others	64/100
5th	Adonis 2022, Manhattan (United States), Series C	Provider of revenue cycle management services for healthcare industry	$95M	General Catalyst, Point72 Ventures & 12 others	64/100
6th	Fathom 2017, San Francisco (United States), Series B	Provider of autonomous medical coding platform and related coding services	$61M	Inflect Health, Alkeon Capital Management ... & 15 others	63/100
7th	Leapfin 2015, San Mateo (United States), Acquired	Cloud-based revenue analytics & management solutions for businesses	$26.7M	Crosslink Capital, Bowery Capital & 8 others	62/100
8th	Arintra 2020, Austin (United States), Series A	AI powered autonomous medical coding solution for hospitals	$21.5M	Y Combinator, Peak XV Partners & 7 others	62/100
9th	Janus AI 2020, Chicago (United States), Series B	AI and SaaS-based revenue cycle management tool for healthcare providers	$64M	Enhanced Healthcare Partners, Ensemble Health Partners ... & 3 others	62/100
10th	Charta Health 2023, San Francisco (United States), Series A	Provider of AI-based pre-bill review solutions for hospitals and healthcare providers	$30.1M	Bain Capital Ventures, SpringRock Ventures ... & 4 others	61/100
14th	Inbox Health 2014, New Haven (United States), Series B	Cloud-based medical billing and payment management solution for healthcare companies	$68.4M	Commerce Ventures, Ten Coves Capital & 16 others	58/100