On-Site Health & Safety

What On-Site Health & Safety does

On-Site Health & Safety (legal entity IOSM INC) is a private, founder-led provider of 24-hour mobile health and safety services to employers, primarily in construction, industrial, and retail sectors across 23+ US states. Founded in 1996 in the San Francisco Bay Area by CEO Virginia Siegel and CFO Zulema Garcia, the company began with drug testing for refineries and pivoted into its flagship offering: dispatching trained technicians (EMTs, paramedics, military medics, LVNs, medical assistants) to customer worksites to treat non-life-threatening injuries on-site. The core value proposition is reducing recordable injuries and workers' compensation costs by keeping 90% of responded injuries at the first-aid level, supported by an average response time of 60–90 minutes across the service footprint.

The company's service portfolio spans six core lines—24-hour mobile first aid response, drug testing (DOT and non-DOT), respiratory fit testing, audiometric testing, telehealth video conferencing, and wellness screenings—supplemented by OSHA-compliant training (CPR/AED, OSHA 10/30, fall protection, confined space, forklift), custom new-hire orientation, walk-in service centers, and the OnSite One Results Portal. Underlying technology includes a mobile dispatch and logistics system, a Moodle-based learning management system at moodle.onsitehealthandsafety.com, and a video conferencing platform for telehealth; an internal technician academy delivers OSHA 30-certified training. Distribution combines enterprise field sales (direct dispatch to worksites), inside sales for protocol onboarding, and self-serve digital channels for scheduling and training enrollment.

The business model is transaction-fee B2B services: customers are onboarded via a five-minute protocol setup, services are dispatched on-demand or pre-scheduled, and invoices are issued 5–7 days post-service with no field payment collection. Pricing is largely quote-based for enterprise services; training follows published unit pricing tiers ranging from $30–$50 per online enrollment and $85–$170 per in-person skills session depending on group size. Customers include DPR Construction, Safway Group, Rosendin Electric, NOVA Group, WSS Shoe Stores, and FilterEasy, with revenue diversified across verticals and geographies and no single anchor account visible in the disclosed evidence.

Name

On-Site Health & Safety

Legal name

IOSM INC

Website

https://onsitehealthandsafety.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

251–500 employees

Short description

On-Site Health & Safety is a private, founder-led provider of 24-hour mobile health and safety services to construction, industrial, and retail employers across 23+ US states, dispatching trained EMTs and paramedics to worksites to manage non-life-threatening injuries and reduce recordable incidents.

Ownership category

akta.pro rank

Product category

Occupational Health & Safety Services

NAICS

Temporary Help Services (561320), Telephone Call Centers (56142)

SIC

Services-Help Supply Services (7363), Services-Testing Laboratories (8734)

akta.pro primary industry

Medical Emergency Response & On-site First Aid/Paramedics (BPABANAG)

akta.pro secondary industries

Emergency Response, First Aid/CPR/AED & Incident Management Training (BPAKAOAJ), Occupational Medicine & Work Injury Urgent Care Clinics (HLAFADAG)

Keywords

• Mobile first aid response
• Occupational health services
• Drug testing services
• OSHA safety training
• Workplace injury response

Headquarters

HQ city

Rodeo

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel

Revenue model

1. On-Site Health & Safety Services: B2B health and safety services invoiced after service completion. No field collection of payments. Invoices sent 5-7 days after service completion, emailed to designated company contact. Services include 24-hour mobile first aid response, drug testing, respiratory services, audiometric testing, wellness screenings, and telehealth.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels9 records

Core offering

On-Site Health & Safety dispatches trained medical and safety technicians to employer worksites 24 hours a day, 7 days a week to assess and treat non-life-threatening injuries on-site. The core 24-Hour Mobile First Aid Response service is supplemented by drug testing, respiratory fit testing, audiometric testing, telehealth, wellness screenings, and OSHA-compliant training courses (CPR/AED, OSHA 10/30, and worksite-specific safety topics). Customers set up company protocols via a five-minute consultation, and services are invoiced after completion with no field payment collection.

Product overview

On-Site Health & Safety provides a portfolio of mobile and on-site health and safety services to employers, primarily serving construction, retail, and industrial sectors across the western United States and select additional states. The core offering is the 24-Hour Mobile First Aid Injury Response service, which dispatches EMTs, paramedics, and safety technicians to worksites to manage non-life-threatening injuries on-site rather than routing employees to off-site clinics. This is supplemented by Drug Testing Services (DOT and non-DOT collections), Respiratory Services (qualitative and quantitative fit testing), Audiometric Testing, and Telehealth Services. Training offerings include CPR/AED/Industrial First Aid Training, OSHA 10 & OSHA 30 Training, and Safety Training (covering fall protection, confined space, forklift, and more). Additional services include Wellness Screening, Custom New Hire Orientation, the OnSite One Results Portal, and Walk-In Service Centers. The company operates its own scheduling system, training portal (Moodle-based), and results portal, with a five-minute protocol setup process and invoicing post-service.

Differentiator

Problem solved

Functional benefit

Products and services

• 24-Hour Mobile First Aid Injury Response
• Drug Testing Services
• Respiratory Services

Quantifiable outcome

• 90% of responded injuries remained first aid cases (did not escalate to recordable injuries), resulting in avoided workers compensation costs and insurance premium increases.
• +3 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

Feature4 records

Partnerships

Ten partnerships are on record, tiered minor.

• Nevada Contractors AssociationminorOthersOrganizational member and supporter. Displays association logo on website indicating membership and industry affiliation.
• Las Vegas Chamber of Commerce (LCA)minorOthersOrganizational member and supporter of local business community.
• North Carolina Metro Chamber (NCMCA)minorOthersOrganizational member in North Carolina region.
• Ascension ChamberminorOthersRegional chamber of commerce membership supporting local business network.
• Hawaii Lodging AssociationminorOthersIndustry association membership in Hawaii hospitality sector.
• ABC Chesapeake (Associated Builders and Contractors)minorOthersNational trade organization membership supporting construction industry employers.
• AGC Missouri (Associated General Contractors)minorOthersNational construction industry association membership.
• Nevada Restaurant AssociationminorOthersState industry association membership serving Nevada hospitality sector.
• California Restaurant Association (CalRest)minorOthersState industry association membership serving California hospitality sector.
• Western Wood Contractors Association (WWCCA)minorOthersRegional construction industry association membership.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Concentra: Largest U.S. occupational health provider, operating owned clinics plus employer on-site services for first aid, drug testing, physicals and injury care — direct overlap with OSHS's core mobile first-aid and drug-testing menu, but at national-clinic scale.
• Premise Health: Large employer-focused on-site and near-site healthcare provider — competes with OSHS for the same employer budget, with a broader primary-care-and-wellness platform rather than mobile first-aid specialization.

Direct peers

• Medcor: Provider of on-site occupational health clinics, triage and injury response with a 24/7 nurse hotline model that competes head-on with OSHS's mobile first-aid dispatch and telehealth services for employers.
• WorkCare: Occupational health and injury management services company offering on-site first aid, drug screening and OSHA-related programs — directly comparable offering and customer profile to OSHS.
• Mobile Health: Mobile occupational health provider delivering on-site drug testing, audiometry, respirator fit testing and screening directly to employer worksites — essentially the same mobile service delivery model as OSHS.

Emerging players

• Marathon Health: Employer health and wellness provider offering on-site/near-site clinics, occupational health and injury care — overlapping with OSHS in employer safety services but centered on wellness programs rather than dispatched first aid.

Regional players

• Occu-Med: Regional occupational medicine provider with employer services including injury care, drug testing and OSHA testing — comparable to OSHS in service scope but with a more geographically concentrated footprint.

Others

• U.S. HealthWorks (now Concentra): Historical occupational health and urgent care brand now operating under Concentra; effectively part of the same incumbent competitor profile that competes with OSHS for enterprise employer accounts.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/oshs_24hr
• YouTubeyoutube.com/channel/UCCLffLmnzJH5ie_sELrS-bg
• Facebookfacebook.com/onsitehealthandsafety
• LinkedInlinkedin.com/company/on-site-health-%26-safety
• Instagraminstagram.com/on_site_health_and_safety
• TikToktiktok.com/@onsitehealthandsafety

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 On-Site Health & Safety