Insights

Geographic Reach ER-One staffs emergency rooms across nine hospitals in three states, indicating scalable demand potential and opportunities to expand partnerships in new markets.

Industry Experience With over 30 years in healthcare innovation, ER-One positions as a trusted partner for hospitals seeking reliable ED staffing, a strong selling point for client acquisition.

Financial Scale Estimated revenue of 10-25 million signals a mid-market health services provider with room to scale via expanded hospital contracts, add-on services, or managed staffing programs.

Tech Capabilities A modern tech stack including cloud infrastructure, analytics tools, and a Shopify/WordPress presence offers opportunities to optimize recruitment, credentialing workflows, and client portals.

Growth Opportunities As a physician and mid-level staffing provider, ER-One could explore expanded services such as on-demand staffing, travel nursing programs, and allied health workforce solutions to capture broader hospital budget lines.

ER-One Tech Stack

ER-One uses 8 technology products and services including Cloudflare, MySQL, Shopify, and more. Explore ER-One's tech stack below.

  • Cloudflare
    Content Management System
  • MySQL
    Database
  • Shopify
    E-commerce
  • jQuery
    Javascript Libraries
  • WordPress Block Editor
    Page Builders
  • Yoast SEO
    Search Engines
  • Google Analytics
    Web Analytics
  • Nginx
    Web Servers

Media & News

ER-One's Email Address Formats

ER-One uses at least 1 format(s):
ER-One Email FormatsExamplePercentage
FLast@er-one.orgJDoe@er-one.org
60%
First.L@er-one.orgJohn.D@er-one.org
20%
LFirst@er-one.orgDJohn@er-one.org
20%

Frequently Asked Questions

Where is ER-One's headquarters located?

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ER-One's main headquarters is located at 38935 Ann Arbor Road Livonia, Michigan 48150 United States. The company has employees across 2 continents, including North AmericaEurope.

What is ER-One's phone number?

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You can contact ER-One's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is ER-One's stock symbol?

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ER-One is a publicly traded company; the company's stock symbol is TONR.

What is ER-One's official website and social media links?

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ER-One's official website is er-one.org and has social profiles on LinkedIn.

What is ER-One's NAICS code?

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ER-One's NAICS code is 621 - Ambulatory Health Care Services.

How many employees does ER-One have currently?

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As of June 2026, ER-One has approximately 14 employees across 2 continents, including North AmericaEurope. Key team members include Chief Executive Officer: K. S.Chief Medical Officer: J. B.Director Of Operations: K. L.. Explore ER-One's employee directory with LeadIQ.

What industry does ER-One belong to?

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ER-One operates in the Medical Practices industry.

What technology does ER-One use?

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ER-One's tech stack includes CloudflareMySQLShopifyjQueryWordPress Block EditorYoast SEOGoogle AnalyticsNginx.

What is ER-One's email format?

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ER-One's email format typically follows the pattern of FLast@er-one.org. Find more ER-One email formats with LeadIQ.
ER-One logo

ER-One

Medical PracticesMichigan, United States11-50 Employees

ER-One is a medical staffing provider focused on supplying physicians and mid-level practitioners to emergency departments across multiple hospitals in the United States. With more than three decades of industry experience, the company positions itself as a source of healthcare staffing and innovation for its hospital clients. Its services are centered on staffing emergency rooms in nine hospitals spread across three states, delivering clinical coverage and related support to address the needs of busy emergency departments.

Based in Livonia, Michigan, ER-One operates within the medical practices industry, serving hospitals that require reliable, experienced emergency medicine personnel. The arrangement aims to support hospitals in maintaining consistent patient care and workforce coverage, leveraging its regional footprint to place qualified clinicians where they are needed. A recent development area in the broader ecosystem includes activities in AI-driven solutions by other entities, but ER-One remains defined by its staffing focus and healthcare delivery role within its geographic and clinical network.

Section iconCompany Overview

Headquarters
38935 Ann Arbor Road Livonia, Michigan 48150 United States
Phone number
Website
er-one.org
Stock Symbol
TONR
NAICS Code
621 - Ambulatory Health Care Services
Employees
11-50

Section iconFunding & Financials

  • $10M$25M

    ER-One's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    ER-One's revenue is estimated to be in the range of $10M$25M

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