The market, the economics, and the OSHA, ADA, and licensure guardrails for selling onsite injury prevention, post-offer testing, and ergonomic services directly to employers — and how buyers value the result.
Industrial injury prevention (IIP) — onsite injury prevention and early intervention, ergonomic assessments, post-offer employment testing, and functional capacity evaluations sold directly to employers — has quietly become one of the most strategically important adjacencies in outpatient physical therapy. The only public pure-play PT operator generated $114.4 million of IIP revenue in 2025, up 18%, bought another IIP business in January 2026, and grew IIP revenue a further 11.6% through the first nine months of 2026 — at a margin now above that of its clinic business.1,2,3,7
For an independent practice, IIP offers something clinical revenue cannot: contracted, employer-paid revenue that does not depend on a fee schedule, a referral, or a prior authorization. It also carries regulatory traps — OSHA recordkeeping, the ADA, and athletic trainer licensure — that can turn a promising program into a liability. This paper covers the market, the economics, the guardrails, and how buyers diligence an IIP book of business.
U.S. Physical Therapy (NYSE: USPH) is the only publicly traded pure-play outpatient PT operator, and it reports IIP as a separate business. Its disclosures are the best public benchmark for what an IIP line looks like at scale.
| USPH Metric | Value | Context |
|---|---|---|
| 2025 IIP revenue | $114.4M | Up 18% year over year1,2 |
| IIP share of total net revenue | ~14.6% | $114.4M of $781.0M consolidated net revenue1 |
| 2026 IIP revenue, first nine months | $95.3M | Up 11.6% year over year7 |
| 2026 IIP margin, first nine months | 20.9% | Vs. 18.1% for USPH's physical therapy operations; Q3 2026 IIP margin of 21.9% on $33.0M of revenue7 |
| Q4 2025 IIP margin | 17.1% | Vs. 16.7% a year earlier — the 2026 improvement is recent1,2 |
| January 31, 2026 acquisition | ~$7.0M | Annual revenue of acquired IIP business; USPH paid $15.0M for a 70% interest3,7 |
In Q4 2025, USPH's IIP margin of 17.1% trailed the roughly 20% gross margin of its physical therapy clinic operations ($35.2 million of gross profit on $173.8 million of revenue).1,2 In 2026 the order flipped: IIP earned a 20.9% margin over the first nine months versus 18.1% for physical therapy operations.7 Even so, IIP is not attractive primarily because of its margin, which has moved several points in a year — it is attractive because the revenue is contracted, recurring, payer-independent, and a feeder for clinic volume when injured workers need care beyond first aid. That is the story a buyer must be able to verify.
| Service | What It Is | Typical Payer | Key Guardrail |
|---|---|---|---|
| Onsite early intervention | Clinician (PT or athletic trainer) stationed at the employer to triage discomfort, educate, and apply first-aid-level care | Employer (hourly or FTE-based contract) | OSHA first-aid list; state AT and PT practice acts |
| Ergonomic assessments | Job-site analysis of lifting, posture, and workstation design with written recommendations | Employer (project fee) | Scope-of-practice claims; avoid engineering certifications you do not hold |
| Post-offer employment testing | Job-specific physical capability testing after a conditional offer | Employer (per test) | ADA: post-offer only, consistent within job category, validated to essential functions |
| Functional capacity evaluations | Standardized multi-hour assessment of physical capacity, often for return-to-work decisions | Employer, workers' comp carrier, or attorney | Documentation quality; state workers' comp rules |
| Wellness and education | Stretching programs, body mechanics training, safety committee support | Employer | Prescribed exercise for an injury may be medical treatment (see Section 03) |
An employer must record a work-related injury that results in medical treatment beyond first aid. OSHA's first-aid list at 1904.7(b)(5)(ii) is comprehensive — anything not on it is medical treatment.8,9 The list includes hot or cold therapy, non-rigid means of support such as elastic bandages and wraps, and massage — but OSHA specifies that physical therapy and chiropractic treatment are medical treatment.8
OSHA's May 2, 2024 enforcement memo confirmed that first aid remains first aid regardless of how many times it is applied — but warned that repeated first aid for the same complaint may indicate that needed medical treatment is being withheld to avoid recording a case, and addressed when exercise and stretching programs become recordable.9,10 A case is also recordable if it results in restricted work or days away, regardless of the treatment provided.8
The Takeaway: Market early intervention as better care and faster triage — never as a way to "keep injuries off the log." A program designed to avoid recording at the expense of appropriate treatment creates regulatory risk for the employer and reputational risk for the practice.
Buyers will ask whether testing protocols are tied to documented essential job functions, applied consistently, administered at the correct point in the hiring process, and stored confidentially. The ADA requires that medical information obtained from post-offer examinations be kept in separate, confidential medical files.11 An offer withdrawn on the basis of a test that screens out individuals with disabilities must be job-related and consistent with business necessity.11
Many IIP programs staff onsite roles with athletic trainers. The Board of Certification reports that 49 states and the District of Columbia regulate the practice of athletic training. California is the exception: AB 796, signed in September 2024, protects the athletic trainer title but does not establish practice licensure.12,14 Many state practice acts require ATs to work under the direction of, or in collaboration with, a physician — so the supervision structure must be documented. BLS reports a May 2025 median AT wage of $62,520.13,15
When a PT evaluates and treats an injured worker onsite, the PT practice act — including direct access limits, documentation, and plan-of-care rules — applies just as it would in the clinic. Programs that blur the line between "prevention" and "treatment" can create scope-of-practice exposure and, if workers' compensation is billed, payer disputes.
The example below is hypothetical. Bill rates, hours, and overhead vary widely by market and contract; the purpose is to show the structure buyers will analyze, not to suggest a price.
An onsite program's direct margin is modest. Its larger value is often the injured workers who need care beyond first aid and choose — where state workers' compensation rules permit — to receive it at the practice's clinic. Buyers will credit that effect only if the practice can show it with data: new evaluations by employer account, tracked over time, with referral sources documented.
Remaining term, termination-for-convenience notice periods, auto-renewal language, and — critically — change-of-control and assignment clauses that may require client consent at closing.
Revenue share of the top three clients, single-site dependence, and exposure to cyclical industries where headcount cuts can eliminate onsite hours quickly.
Whether the employer relationship sits with one onsite clinician or with the practice; non-solicitation terms in both staff and client contracts; licensure and supervision documentation.
Client-level trends in recordable rates, days away, and workers' comp claims — presented carefully, with the employer's permission and without overstating causation.
Your workers' comp intake already shows which local employers generate injuries. Begin there.
Define exactly what onsite staff may provide, mapped to OSHA's list, with escalation rules for medical treatment.
Tie each post-offer test to documented essential functions and confirm ADA sequencing and confidentiality.
Confirm state licensure and the physician-direction structure required by your state's practice act.
Draft client agreements so they can transfer in a sale without re-papering every account.
Separate revenue, direct labor, and contribution so a buyer can value it — the way USPH does publicly.
Tag every clinic evaluation that originates from an onsite program.
Determine how HIPAA, state confidentiality law, and state workers' comp choice-of-provider rules apply to each program.
Mihama helps practices structure, document, and report IIP programs so that buyers can underwrite the contracts — and credit the clinic volume they generate.
347-878-2941
Confidential consultation, no retainer required
info@mihamainc.com
We respond within one business day
www.mihamainc.com
Resources, white papers & transaction experience
BLS figures are for U.S. private industry in 2024; 2025 SOII data are scheduled for later release. Liberty Mutual's 2026 Index reflects 2023 data and re-coded injury categories. USPH IIP figures are company-reported; 2026 figures are for the nine months ended September 30, 2026. The onsite contract example is hypothetical.