Flash Protec'

Designed and assembled in France

Anticipate danger.
Protect the people who build the jobsite.

Simultaneous alert to machines and crews at any collision risk. No Wi-Fi, no machine modifications, no training.

Free pilot, on your jobsite · Reply within 24h

0+

wristbands in service on our clients' jobsites

★ SEED 2026 Program

Vinci Léonard

9 startups selected

Day or night

Everywhere — tunnels, basements, defense sites

You are

Why we exist

Eight years watching accidents we could have prevented.

We spent nearly a decade in construction equipment rental, watching machines deployed without any safety solution — because the existing tools are too expensive, too complex, or too fragile for the field.

So we built Flash Protec': simple, affordable, deployable in minutes on any machine, that works day or night, everywhere.

5 min to equip a full jobsite
€0.50 per day to protect a worker
100% standalone — no network required

How it works

Detect. Alert. Save.

Step 1

Detect

The magnetic beacon on the machine emits a configurable safety bubble. The workers' wristbands listen continuously.

Step 2

Alert

The moment a worker enters the zone, their wristband vibrates, the beacon flashes. Operator and worker are warned at the same time.

Step 3

Save

The accident is avoided. No tragedy. Your crews go home. That's all that matters.

Flash Protec' in action

See how it triggers, for real.

Flash Protec' — jobsite demonstration

On the ground

One case per site supervisor.
Five minutes to secure a crew.

In the morning, the supervisor opens their case. They hand ten wristbands to the crew, attach two beacons on the machines by simply snapping them on magnetically. It's ready.

During the day, if a worker gets too close to a moving machine, their wristband vibrates and the beacon flashes. Operator and worker are warned at the same time. No tragedy, no paperwork — just a risk avoided.

No machine installation Configurable in under 2 min

A standard case

Ready in 5 min
2

Beacons

snapped onto machines magnetically in 30 seconds

10

Wristbands

worn by the workers

Management app

range, alerts, exclusion zone — configurable in 2 min

The supervisor takes it from one site to another. When they change site, safety follows them.

On the ground

From daytime highway works to overnight sessions.

Night highway jobsite equipped with Flash Protec'

★ Reference

Highway works, overnight sessions

Day or night, workers are warned in real time

Wristband worn by a worker

Wristband worn by a worker

Daytime asphalt laying

Daytime asphalt laying

Wristband installation

Wristband installation

Highway jobsite

Highway jobsite

Photos taken on our clients' jobsites · framing anonymized

Want to test on your next jobsite?

We come on-site

Where others don't go

Flash Protec' works wherever a jobsite exists.

Day or night

Cameras see nothing at night. Flash Protec' alerts the same way at 3am as at 2pm.

Our difference

No Wi-Fi, no 4G

Runs fully standalone. Tunnels, basements, parking lots, defense sites where video is banned — your jobsites stay protected.

No machine modification

Magnetic mount in 30 seconds. No drilling, no wiring, no work on the machine. Snap it on, pull it off, done.

Ready in under 2 min

Configure from the mobile app. Adjust range, intensity, exclusion zone — everything is tunable to your jobsite.

On the ground, every day

Construction leaders trust us.

From highway works to nuclear sites, from data centers to rail — Flash Protec' is already on the ground.

★ Reference

Active contract for nearly 1 year on a nuclear site.

Classified site in the PACA region, France, where video surveillance is forbidden. Our solution runs fully standalone, no network, no camera.

Operational 24/7 · May 2025 → ongoing

12 site supervisors equipped

at a leader in highway works

Data center construction

on the port of Marseille

1-year contract signed

with a major rail player

Multiple jobsites

deployed at a national construction group

International launch in June 2026

first deployments in Gabon and Canada

Simple pricing, no commitment

A serious accident costs 0 to over 0.
Our solution: under €300/month.

For a jobsite equipped with 2 machines protecting 10 workers. The equivalent of half a day of excavator rental. No commitment.

À la carte pricing

Flat fee

per site / month

€129

Beacon

per beacon / month

€49

Wristband

per wristband / month (~€0.50/day)

€9.90

No commitment. Activate for 1 month, stop whenever you want.

How about a test on your next jobsite?

Free pilot, on-site, with one of our founders. Reply within 24h.

What they say about it

The ones who wear it. The ones who run it.

Usually you tune out the alarm. You trust the operator. With this, you look up when it vibrates.
K

Kader

Ground worker · A9 highway jobsite

If the flash lights up, I know the wristbands are vibrating. It's good they're looking for solutions, I'm scared when they have their backs to me.
M

Mounir

Compactor operator · A9 highway jobsite

The product fully convinced us: ergonomic, easy to use, it strengthens vigilance among the team and fits perfectly into a prevention approach.
R

Site manager

Industrial logistics · Logistics platform in Rhône-Alpes

They trust us

Construction leaders deploy Flash Protec' on their jobsites

Colas
ETF — Eurovia Travaux Ferroviaires
Léon Grosse
Demathieu Bard
Groupe Fayat (CARI · BEC Construction)
Vinci Énergies — Axiance Afrique

Backed by

Léonard — Vinci innovation program Bpifrance Région Sud Provence-Alpes-Côte d'Azur France 2030 La French Tech IMT Mines Saint-Étienne (Gardanne)

As seen at

VivaTech Paris 2025 GITEX Global Dubai GITEX Africa Morocco Contech Connect

Our commitment

Safety your crews actually want to wear.

Designed from accidents we've seen — not from ones we've imagined.

Simple, intuitive, instantly operational technology to protect every person on your sites — regardless of role or environment. Shared vigilance combined with cutting-edge innovation: real-time safety, no complexity, no compromise. Sharing Worker is your trusted partner in Security as a Service.

Discover our solutions
Florent & Olivier, Co-founders · Prevent Innov' SAS
Région Sud · PACA

Co-founders · Prevent Innov' SAS

Florent & Olivier

Frequently asked questions

What everyone asks us.

How long does it take to equip a jobsite?
Under 5 minutes. You attach the beacons magnetically onto your machines, hand out wristbands to your workers, and set the detection range from the mobile app. That's it — no wiring, no training, no modification of the machine.
Does it work in tunnels, basements, sites with no network?
Yes. Flash Protec' runs fully standalone, with no Wi-Fi or 4G. It's actually one of our main selling points for defense sites, nuclear jobsites, tunnels, underground parking, or remote sites. Internet is only required for the initial setup.
What's the difference vs a Lidar or camera-based solution?
Price first — a Lidar or camera solution costs €4,000 to €11,000 per machine, which prevents equipping an entire fleet. Flash Protec' is €49/month per machine. Next, cameras don't work at night or in low visibility (dust, fog) — Flash Protec' does. Finally, our workers wear the wristband — they're protected across every equipped machine, not just one.
What if a worker needs to be permanently close to the machine?
It's planned for. The app lets you define an internal exclusion zone: for example, alerts off within the first 7 meters around the machine (for pipe layers in road works, signalers, etc.), but active beyond that. Your teams operating in close proximity aren't disturbed.
Is there a minimum commitment?
No, it's commitment-free. You can equip a jobsite for a single month, then stop. It's the same logic as renting construction equipment — you pay when you use it, you stop when the jobsite is done.
Contact us