A long-established Dutch consulting-engineering firm (building physics, acoustics, aerodynamics and fire safety), founded in 1932. Its fire-safety-engineering practice designs integral, performance-based solutions for evacuation, smoke and fire compartmentation, smoke control and beheersbaarheid van brand, particularly for atria, high-rise, underground and sprinklered buildings. Uniquely among Dutch consultancies, Peutz operates its own accredited fire laboratory for fire-resistance testing. Outputs support professional judgement rather than replacing it.