7 Things to Know When Choosing EHS Software for a Seveso Site
July 17, 2026
Most "how to choose EHS software" guides are written for a generic warehouse or manufacturing buyer. If you run a Seveso or BRZO-classified site, your checklist is different - because your regulator, your audit trail, and your risk profile are different.
This isn't a full evaluation framework (we've got a longer buyer's guide for that). This is the short version: seven things to physically check in a demo or contract before you sign, specifically because you're a major-hazard operator.
1. Does it map to Annex III, or just "generic EHS categories"?
Most EHS platforms organize around generic modules: incidents, audits, inspections, corrective actions. That's fine for a standard workplace safety program. It's not fine for a VBS.
Your safety management system has to demonstrate coverage of the seven Annex III elements - organization and personnel, identification and evaluation of major hazards, operational control, management of change, emergency planning, performance monitoring, and audit and review. Ask the vendor directly: can inspections, findings, and actions be tagged or structured so you can pull evidence by Annex III element, not just by generic category? If the answer is "you'd have to build that yourself with custom fields," budget the time to do it - or count it as a gap.
2. Can you get your data out if you switch vendors?
Ask this before you ask anything about features: if you leave in three years, what do you walk away with?
Years of inspection records, incident history, and corrective action trails are part of your safety case - not just operational data. Get a straight answer on export format (not "we'll figure it out at offboarding"), what's included, and whether historical attachments and audit trails come with it intact. A vendor that can't answer this cleanly in the sales process won't get easier once you're a locked-in customer.
3. Does the vendor actually understand Seveso, or are you their first one?
Ask how many Seveso or BRZO-classified sites they currently serve, in what sector, and whether their team can talk through Annex III, the MOC (management of change) process, or how their platform handles emergency planning documentation without you explaining the basics to them first.
A vendor who treats you like a generic "warehouse with some chemicals" client is going to configure the platform like one. That mismatch usually doesn't surface until your first inspection cycle, when the categories don't match what your inspector expects to see.
4. What does onboarding and migration actually involve?
Get specifics, not a sales deck slide. Who maps your existing procedures, checklists, and historical records into the new system - you, or them? How long does it realistically take for a multi-site Seveso operation, not a single small office? Is there a parallel-run period where old and new systems both operate, so nothing falls through the gap?
Migration is where most EHS software projects lose time and goodwill. Get this in writing, with a timeline, before you sign - not as a "we'll scope it after contract" conversation.
5. Is pricing per-site, per-user, or something that punishes you for being thorough?
Seveso sites tend to have more inspectors, more contractors, more shifts, and more sites than the average EHS buyer the vendor is pricing for by default. Ask exactly how pricing scales: per named user, per active user, per site, per module. Then model it against your actual headcount and site count - not today's, but where you'll be in two years if the platform works and adoption grows.
Watch for pricing structures that quietly penalize you for wanting more people involved in inspections and reporting, which is usually the opposite of what you want on a major-hazard site.
6. What happens during an actual inspection?
Walk through this scenario with the vendor: a regulator is on-site and asks for evidence tied to a specific Annex III element, from a specific time period. Can someone pull that up in the room, on a phone or tablet, with photos and timestamps attached? Or does someone need to go back to a desktop and assemble a PDF afterward?
Real-time evidence pulls during an actual inspection are the moment your system either earns its keep or becomes a liability. Ask for a live demo of this specific scenario, not a general product walkthrough.
7. Can they give you a reference from another Seveso or BRZO site?
Case studies and testimonials are marketing. A reference call with another EHS or compliance manager at a comparable major-hazard site is not - you can ask them what broke, what the vendor didn't tell you upfront, and how the inspection experience actually went.
If a vendor has real Seveso or BRZO customers, this should be an easy ask. If they hesitate or can only offer references from unrelated industries, treat that as information.
Want the longer version - the full evaluation framework with detailed criteria and vendor questions? Read the complete EHS software buyer's guide.