SA

SISU Auto

Oy Sisu Auto Ab

Karjaa, Finland

Land Systems & VehiclesArmour & ProtectionCBRN DefenseDual-use
Prime ContractorSupplies Land Forces
Profile last updated: August 10, 2026

About

SISU Auto is a defense prime contractor based in Karjaa, Finland working in land systems & vehicles, armour & protection, cbrn defense.

SISU Auto is a Finnish vehicle manufacturer with a history of more than 90 years, developing and producing heavy-duty trucks and military vehicles. Its defence portfolio includes the GTP 4x4 tactical vehicle, the articulated tracked GTT platform and crew cabs, with modular protection and Stanag 4569 upgrade options. The company is also developing the TAURUS remotely operated and autonomous vehicle system with ST Engineering and has agreed with Valmet Automotive to manufacture military vehicles and components in Uusikaupunki. Oy Sisu Auto Ab also trains the SISU service network and manages vehicle compliance and warranty. Its civilian Polar range of trucks serves construction, timber, crane and transport customers in Finland.

Location

Karjaa, Finland

Legal name

Oy Sisu Auto Ab

Focus areas

military vehiclestactical vehiclesheavy trucksarmoured vehiclesmodular protectiontracked vehiclesFinland

Languages

EN

Products & capabilities

Defense domains

Land Systems & VehiclesArmour & ProtectionCBRN Defense

Supply-chain role

Prime Contractor

What they offer

HardwareMaintenance & RepairTraining

Markets

Also sells to civilian markets

Products

SISU GTP

Tactical vehicle

All-wheel-drive off-road tactical vehicle with independent suspension, differential locks, modular crew protection kits and Stanag 4569 protection options.

SISU GTT

Articulated tracked vehicle

High-performance multi-purpose articulated tracked platform vehicle, Finnish-manufactured.

SISU Crew Cab

Military cab

Crew cab offering protection, situational awareness and comfort, adaptable to customer-specific equipment and weapon systems.

End users

Land Forces

Standards, platforms & customers

Defense standards

STANAG 4569

Platforms & programmes

SISU GTPSISU GTTTAURUS

Other defense companies in Finland

View all