ISN certification for security integrators: what buyers expect

ISN certification, more accurately ISN accreditation, is the contractor-compliance review run by ISNetworld. To accredit, a contractor submits insurance certs, OSHA stats, written safety programs, training records, and a Master Safety Assessment Questionnaire. ISN's RAVS team reviews the safety plans against the buyer's requirements and grades them. Industrial buyers in oil and gas, utilities, and manufacturing then use that grade to gate contractors onto their approved-vendor list before any work begins.

ISN basics

ISN, formally ISNetworld, is a contractor-compliance management platform headquartered in Dallas. Industrial owners pay a subscription, define the safety, insurance, and training thresholds their site requires, and use ISN to vet the contractors they hire against those thresholds. Contractors pay an annual fee, submit documentation, get a graded profile, and become visible to every ISN-subscribing buyer.

The shorthand "ISN-certified" is what shows up in procurement conversations and RFPs. Strictly, ISN's term is "accredited" or "in compliance," and the grade is per-buyer rather than a single stamp. Either way, the working meaning in the field is the same: this contractor has been audited and is cleared to work the site.

For the broader definition, see our glossary entry on ISN. The rest of this page is for security buyers and integrators navigating an ISN-driven approved-vendor process.

Why industrial buyers require ISN

A camera install on an active manufacturing floor carries a different risk profile than one at a corporate office: forklifts, lockout-tagout zones, confined spaces, overhead hazards. A contractor injury triggers OSHA reporting, workers' comp claims, and sometimes a production shutdown. The buyer's EHS team can't afford to discover their integrator's safety program two weeks into the install.

ISN exists because that pre-qualification used to happen 200 times a year per plant, each procurement lead chasing the same insurance certs and OSHA logs from a different vendor every week. Standardizing it to one platform means EHS sets the rules once, ISN runs the audits, and procurement makes a clean yes-or-no call from the graded profile. For integrators, that's a binary: on the approved list before the bid goes out, or not in the conversation. Buyers don't reroute a camera RFP around an ISN gap.

What ISN audits cover

Mostly documentation review, with grading layered on top. The major buckets:

Insurance. Certificates of insurance for general liability, auto, workers comp, umbrella, and any specialty coverage. Limits vary by buyer; $5M umbrella is a common ask on industrial sites.
OSHA stats. TRIR (Total Recordable Incident Rate), DART rate (Days Away, Restricted, or Transferred), fatalities, and lost-time injuries by year. Buyers set thresholds; below 1.0 TRIR is broadly competitive in low-voltage and security contracting.
MSAQ. Management System Assessment Questionnaire. Roughly 200 questions covering written safety programs, hazard communication, fall protection, hot work, electrical safety, confined space, lockout-tagout, PPE policy, and incident reporting.
RAVS. Review and Verification Services. ISN's team reads each written safety plan and grades it (A-F) against the buyer's specific requirements. RAVS is where many contractors lose ground; a generic OSHA template won't grade well against a refinery operator's expectations.
Training records. Evidence of OSHA 10, OSHA 30, first aid / CPR, and any site-specific training the buyer requires (TWIC for ports, NFPA 70E for high-voltage zones, site-specific orientation).
Drug and background. Written policies plus evidence of execution, often a sample of recent records.
MSAs and indemnity. Buyer-specific Master Service Agreement plus indemnity, hold-harmless, and waiver of subrogation language. Often the longest part of the onboarding.

The verification process timeline

Zero to ISN-accredited is a multi-month process for a new contractor. Realistic timeline:

Weeks 1-2. Subscribe, populate the company profile, upload insurance certs, OSHA logs, and existing training records.
Weeks 2-6. Complete the MSAQ. This usually triggers internal work to formalize policies that previously lived in someone's head.
Weeks 4-10. Submit written safety plans for RAVS review. Iterate. RAVS sends back redline feedback, contractor revises, resubmits.
Weeks 8-12. Buyer-specific MSAs and site-specific requirements. Multiple buyers means multiple rounds.
Annually. Renewal: refresh insurance, update OSHA stats, re-attest to MSAQ items, address any RAVS deltas.

Mature contractors run this as a continuous program. The integrators who scramble are the ones treating it like a once-a-year fire drill.

How to evaluate a non-ISN integrator

If you're considering an integrator that isn't on ISN, you're essentially deciding to do the audit yourself. A short checklist of what to ask for in writing before the install:

Three years of OSHA 300 logs and the calculated TRIR / DART rates.
A written safety program covering at minimum: hazard communication, lockout-tagout, fall protection, electrical safety, PPE, and incident reporting.
OSHA 10 or 30 training records for every tech who'll be on site.
Certificates of insurance with your facility named as additional insured, including waiver of subrogation.
A written drug and background screening policy plus a sample of recent records.
Recent project references in a comparable industrial setting.

If the integrator produces all six in 48 hours, they're running a real safety program. If any takes a week or comes back fuzzy, that's the signal you'd have caught with ISN in the first place.

How Tec-Tel approaches ISN-grade buyers

Tec-Tel is a nationwide integrator with over 15 years across manufacturing, hospitality, retail, and healthcare. Our standard install package produces the documentation an ISN-driven procurement team expects: insurance certs with the buyer named additional insured, OSHA-aware install practices, written job hazard analyses, training certificates for the techs on site, and a per-site bill of materials with vendor self-certifications attached.

Tec-Tel is trusted by industry leaders including Bridgestone, ORBIS, TreeHouse Foods, and Menasha. The common pattern: a procurement lead with an ISN-managed approved list and an inherited security stack from three integrators wants one accountable shop to take the whole footprint. We're built for that. See our manufacturing security page for the broader pitch, and the compliance reference for our posture across NDAA, HIPAA, PCI, FERPA, FTC Safeguards, CMMC, BIPA, GDPR, and ADA.

Frequent buyer questions

What does ISN certification actually mean?

ISN runs an annual contractor-compliance review on behalf of industrial buyers. A certified or accredited contractor has submitted insurance, OSHA stats, written safety plans, training records, and a Management System Assessment Questionnaire, and ISN has graded each item. The grade is the working signal that buyer procurement teams use to clear the contractor for work on a given site. It's not a one-time exam; it renews each year.

Is ISN certification the same as OSHA certification?

No. OSHA is a federal agency that sets workplace-safety regulations and runs inspections. OSHA does not issue contractor certifications. ISN is a private platform that audits contractors against OSHA-driven and buyer-specific requirements. An ISN-accredited contractor is signaling that their OSHA program, training, and incident record have been reviewed by a third party. The two are complementary: OSHA writes the rules, ISN verifies your program against them.

Why do industrial buyers require ISN-accredited contractors?

Owners of high-risk facilities like refineries, pipelines, utilities, and large manufacturing plants face real liability when a contractor gets hurt on site. ISN gives them one consistent mechanism to verify insurance, written safety programs, OSHA history, and training records across hundreds of contractors a year. It standardizes what would otherwise be a custom paperwork drill on every job. Buyers gate vendor approval on it because the alternative is running the same checks themselves.

Does ISN certification expire?

Effectively, yes. ISN status is renewed annually. Insurance certs renew every year, OSHA stats roll forward, and the written safety plans get re-graded by RAVS. If a contractor lets paperwork lapse, the grade drops and buyer procurement systems flag the contractor as out of compliance. Active contractors treat ISN renewal as a year-round process, not an annual scramble in December.

What's the difference between ISN, Avetta, and Veriforce?

All three are contractor-compliance management platforms, and the requirements overlap heavily. ISN started in oil and gas and is dominant there. Avetta has broader industry coverage including retail and hospitality. Veriforce is strong in pipeline and utilities. Some buyers subscribe to multiple platforms; well-run contractors maintain status on all the platforms their target buyers use, since the underlying documentation is largely the same.

Can a non-ISN integrator still work on an industrial site?

Sometimes, with a one-off paperwork exception, but it's rare and usually painful. The buyer's procurement and EHS teams have to manually re-collect what ISN would have collected, then sign off internally. Most plant managers won't open that exception for a routine camera install when an ISN-accredited integrator is available. For one-off emergency repair work, a non-ISN integrator might get day-pass access; for any meaningful project, ISN status is effectively a precondition.

How does Tec-Tel approach ISN-grade buyers?

Tec-Tel operates with the safety, insurance, and documentation discipline industrial buyers require. Our standard install package produces what an ISN-driven procurement team expects: insurance certs, OSHA-aware install practices, written job hazard analyses, and a per-site bill of materials. Tec-Tel is trusted by industry leaders including Bridgestone, ORBIS, TreeHouse Foods, and Menasha.

Can I get a free consultation if I'm scoping an ISN-grade project?

Yes. We run a free consultation and site walk up front. If you're rebuilding an industrial security stack and need a vendor to slot into your ISN-managed approved-vendor list, that's a fine starting point. Bring your existing camera and access-control inventory, your retention requirements, and any specific ISN buyer thresholds your procurement team has flagged.

Need a security integrator who meets your ISN compliance bar?

A quick call with our team. Bring your existing camera and access-control inventory plus any specific ISN buyer thresholds your procurement team has flagged. Output: a clear picture of gaps you can take back internally.

Tell us how many sites you run and what's already in place. We'll show you what a build or upgrade looks like.

Straight answers from the team that does the work. We're platform-agnostic, so you get the system that fits your sites, not one brand's catalog.

Since 2010 · 1,000+ deployments nationwide · ISN-accredited

Talk to our team 855-577-0400

ISN certification for security integrators: what buyers expect

ISN basics

Why industrial buyers require ISN

What ISN audits cover

The verification process timeline

How to evaluate a non-ISN integrator

How Tec-Tel approaches ISN-grade buyers

Frequent buyer questions

ISN certification: complete guide

ISN, defined

Manufacturing security

Compliance reference

Need a security integrator who meets your ISN compliance bar?

How can we help?