CareOnSite Medical Services

What CareOnSite Medical Services does

CareOnSite Medical Services (operating as CAREonsite) is a Torrance, California-based occupational healthcare provider operating as a division of privately-held Tang and Company. Founded approximately 1979, the company delivers a full spectrum of workplace health services to large enterprise employers across the United States, including on-site medical staffing, two company-owned clinics in California, mobile care teams for remote and distributed worksites, and 24/7 TeleMedicine and TeleNurse Triage (TNT) delivered through its Virtual Care 360 platform. The company also offers medical directorship, program management, and specialty services for emergent projects such as plant turnarounds.

The firm's differentiated offering rests on its CAREonsite 360 integrated care model, which combines on-site staffing, virtual care, and mobile care delivery under board-certified physician oversight with evidence-based treatment protocols aligned to ACOEM guidelines. Underpinning service delivery is ECC™ (Electronic Care Companion), a proprietary HIPAA-compliant software platform that functions as a single source of truth for medical records, injury case management, automated notifications, and analytic reporting. The company reports that its protocols are informed by more than 45 years of accumulated injury case data, and it cites outcomes such as 50–90% reductions in recordable injuries, up to 94% of injuries kept on-site, and 35–50% reductions in workers compensation costs depending on industry.

CAREonsite generates revenue primarily through long-term, customized enterprise contracts with large employers — the company states it is trusted by 17 Fortune 100 companies. Pricing is quote-based and not publicly disclosed; service scope, geographies, and pricing are tailored to client size, number of locations, and industry-specific needs. GTM motion is enterprise field sales targeting EH&S and HR decision-makers, with nationwide reach supported by medical directors licensed in all 50 states. The company is bootstrapped (no external funding) and operates as a wholly-owned subsidiary of Tang and Company.

Name

CareOnSite Medical Services

Legal name

Tang and Company

Website

https://careonsite.com

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

101–250 employees

Short description

CareOnSite Medical Services (CAREonsite) is a Torrance, California-based occupational healthcare provider, operating as a division of Tang and Company. It delivers on-site medical staffing, mobile care, TeleMedicine, and clinic-based services to large enterprise employers — including 17 Fortune 100 companies — across all 50 U.S. states.

Ownership category

akta.pro rank

Product category

Occupational Healthcare Services

NAICS

Offices of Physicians (except Mental Health Specialists) (621111), Ambulatory Health Care Services (621), Offices of Physical, Occupational and Speech Therapists, and Audiologists (62134)

SIC

Services-Offices & Clinics Of Doctors Of Medicine (8011), Services-Specialty Outpatient Facilities, Nec (8093), Services-Health Services (8000)

akta.pro primary industry

Occupational Medicine & Work Injury Urgent Care Clinics (HLAFADAG)

akta.pro secondary industry

Occupational Health & Worksite Health Virtual Care (fit-for-duty, RTW) (HLALADAM)

Keywords

• Occupational healthcare services
• Workplace injury care
• Telemedicine triage
• Medical staffing services
• Workers compensation management

Headquarters

HQ city

Long Beach

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Occupational Healthcare Services: Revenue generated from providing comprehensive occupational health services including on-site medical staffing, clinic-based care, mobile care teams, and virtual TeleMedicine services to enterprise clients. Services delivered through long-term contractual relationships with employers across various industries.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels2 records

Core offering

CAREonsite Medical Services delivers customized occupational healthcare solutions to enterprise employers across the United States. Its offering combines on-site medical staffing, two owned California clinics, mobile care teams deployed to remote worksites, and 24/7 TeleMedicine with TeleNurse Triage (Virtual Care 360). Underlying the service is the proprietary ECC (Electronic Care Companion) HIPAA-compliant platform for medical records, injury case management, and reporting, all delivered through the integrated CAREonsite 360 model.

Product overview

CAREonsite Medical Services operates as a customized occupational healthcare solutions provider with a unified CAREonsite 360™ model. The portfolio consists of five core service offerings: (1) Occupational Healthcare Clinic for on-site clinic-based care at two California locations; (2) Medical Staffing placing expert professionals at client facilities; (3) CAREonsite Mobile delivering mobile care teams to remote worksites; (4) Virtual Care 360 combining TeleMedicine and TeleNurse Triage (TNT) for 24/7 virtual access; and (5) Specialty Services for emergent situations. Supporting these services is proprietary software ECC™ for data management, reporting, and case tracking. Medical Directorship & Program Management provides oversight integration across all service lines.

Differentiator

Problem solved

Functional benefit

Brands

• CAREonsite 360: Comprehensive occupational healthcare model combining on-site, virtual, and mobile care services with physician oversight
• CAREonsite Mobile
• Virtual Care 360
• ECC (Electronic Care Compass)

Products and services

• Occupational Healthcare Clinic Two California-based clinics offering a full range of occupational health services available 24/7, providing immediate access to medical care for workplace injuries. Targeted at enterprise employers needing accessible clinic-based occupational care.

Quantifiable outcome

• 50-90% reduction in recordable injuries
• +9 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators6 records

Expansion highlights5 records

Direct peers

• Concentra: Concentra is the largest U.S. occupational health provider, operating a national network of occupational clinics offering work injury care, physical exams, drug testing, and TeleHealth services to employers — directly competing with CAREonsite's full-service occupational health model.
• Premise Health: Premise Health provides on-site and near-site health centers, occupational health, and virtual care services to large enterprise clients, sharing CAREonsite's employer-sponsored, multi-service delivery model and Fortune 500 customer base.
• Medcor: Medcor delivers on-site clinics, TeleHealth triage, and workers' compensation management for employers across industries, closely mirroring CAREonsite's CAREonsite Mobile and TeleNurse Triage offerings with a technology-led, employer-sponsored model.
• Marathon Health: Marathon Health operates employer-sponsored on-site and virtual primary care, occupational health, and wellness programs, competing for the same large-employer RFPs and overlapping in occupational injury care and virtual triage capabilities.
• WorkCare: WorkCare provides occupational health services including on-site clinical staffing, injury management, TeleHealth, and consulting to industrial and corporate clients, with comparable service breadth and similar employer-sponsored delivery model.
• Nova Medical Centers: Nova Medical Centers operates occupational health clinics focused on workplace injury care, drug testing, and physical exams for industrial and construction employers, directly overlapping with CAREonsite's clinic and on-site service offerings.
• Occupational Health Centers of America (OHCA): OHCA provides occupational medicine, urgent care, and workers' compensation services through a network of clinics, competing for similar employer and payer contracts in workplace injury management.

Broad incumbents

• Optum (UnitedHealth Group): Optum offers workplace health, population health, and care management services as part of its broader healthcare portfolio, serving many of the same large employers and providing overlapping occupational health capabilities at greater scale.
• U.S. HealthWorks (CommonSpirit Health): U.S. HealthWorks, now part of CommonSpirit/Dignity Health, operates a large network of occupational medicine clinics offering similar work injury care and employer services, representing a hospital-system-backed incumbent competitor.
• HCA Healthcare Occupational Health: HCA Healthcare provides occupational health and workplace medicine services through its extensive hospital and clinic network, competing for enterprise employer contracts as part of a much broader healthcare delivery platform.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CareOnSite Medical Services