ISN, the short version

ISN stands for ISNetworld. It's not a government agency or a certification body in the OSHA or BICSI sense. It's a private platform based in Dallas that owners of high-risk facilities use to manage contractor paperwork at scale. A single refinery, utility, or auto plant might hire 200 contractors a year, and re-collecting insurance certs, OSHA logs, and training records from each one eats a procurement team alive. ISN runs that as a service.

Buyers pay a subscription, define their compliance requirements (insurance limits, OSHA TRIR thresholds, training records, drug testing, NDA, MSA terms), then accept or reject contractors based on whether ISN has graded them in scope. Contractors pay an annual fee, submit documentation, get a graded profile, and become visible to every buyer that subscribes to ISN.

Who uses ISN

ISN is concentrated in industries where a contractor mistake can hurt people, halt production, or trigger regulatory action. The biggest buyer segments:

  • Oil and gas - upstream, midstream, and downstream operators. ISN was built around this vertical originally.
  • Utilities - electric and gas, where NERC CIP and OSHA exposure both run high. See our glossary entry on NERC CIP.
  • Manufacturing - automotive, chemical, food and beverage, building products. Big plants with active production floors can't afford a contractor incident.
  • Mining and heavy industry - same logic.

For Tec-Tel's customer base, the ISN-driven verticals overlap heavily with our manufacturing security work. When a multi-site manufacturer puts a security integrator on its approved list, ISN is the most common gating step.

How a contractor becomes ISN-accredited

The process isn't an exam. It's a documentation review with annual recertification. The major moving parts:

  1. MSAQ - Management System Assessment Questionnaire. You answer about 200 questions about your written safety program, training, audits, and incident response.
  2. RAVS - Review and Verification Services. ISN's team reviews your written safety plans against the buyer's requirements and assigns a letter grade per topic (A through F).
  3. OSHA stats - your TRIR, DART rate, fatalities, and lost time, year by year.
  4. Insurance - certificates of insurance for general liability, auto, workers comp, umbrella, and any specialty coverage the buyer requires.
  5. Training - records that personnel have completed OSHA 10, OSHA 30, lockout-tagout, fall protection, confined space, and any site-specific training.
  6. Drug and background - written policies plus evidence of execution.

Each buyer sets its own thresholds. A pipeline operator and a food-and-beverage plant won't have identical requirements. ISN's job is to translate the contractor's documentation into a per-buyer verdict.

Why ISN matters for security integrators

Most security buyers don't think of camera installs as high-risk contractor work. Industrial buyers do. A camera tech on a refinery is on the same site, climbing the same ladders, near the same hazardous areas as a welding contractor, and the plant manager wants the same paperwork from both.

That's why ISN-accredited integrators get pulled onto industrial bids that non-accredited shops can't even quote: the approved-vendor list is gated on the ISN check, not the camera spec. For a manufacturer or utility procurement lead, an integrator's ISN status is a real proxy for whether they have a written safety plan, a real OSHA program, and real insurance limits, not just a sales pitch about it.

Tec-Tel's published profile lists us as an ISN-accredited provider on our LinkedIn About page. If you need an integrator-of-record entry for your own ISN-managed approved-vendor list, the free consultation is the place to start that conversation.

Related concepts

  • Avetta, Veriforce, ComplyWorks - competitor contractor-compliance platforms. Some buyers use multiple. A well-run integrator is graded on all the major ones.
  • OSHA TRIR - Total Recordable Incident Rate. The single number ISN buyers look at first. Industry medians vary by NAICS code; below 1.0 is competitive in most security and low-voltage contracting.
  • MSA - Master Service Agreement. ISN-driven buyers typically require a signed MSA before any work order, with insurance and indemnity terms attached.
  • Approved Vendor List (AVL) - the buyer-side output of the ISN process. If you aren't on the AVL, you can't quote.

When to ask Tec-Tel about ISN

If you're an industrial buyer rebuilding your security stack and your procurement team is asking which integrators are ISN-cleared, we can walk you through where Tec-Tel sits and what evidence we produce on install. If you're a security manager whose own integrator just lost ISN standing, we can usually slot in fast.