A company with a long tradition.

About us

PRINER is the new name of Mills|Si, a leading Brazilian company in the industrial services and maintenance sector, focused on results-based management, commitment to safety and innovative technological solutions.

Our Solutions

We operate throughout Brazil.



Isolamento Térmico Removível – Substituição de jaqueta térmica em turbina a gás de usina termelétrica

Jan | 2018

96 kg/m³de manta fibra cerâmica e tecido de fibra de vidro

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Aluminum Fitting Scaffolding System – Access Technology

Forno de Pirólise | Bahia | 2017

50%reduction in assembly time and team risk exposure

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SafeCool and WCM-Welding Control Module. The new Habitat equipment that ensures enhanced productivity

May | 2017

NR15 without restrictions

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Suspended Platform: The advantages of use of PrinerDeck in Offshore Maintenance

March 2017 | Campos Basin | RJ

29kg/m² of aluminum and steel material

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Ideal for safe work in explosion risk areas

Offshore oil production rigs, refineries, industrial plants and petrochemical terminals.

Flame retardant PVC

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Our Clients

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