Hans Rinninger u. Sohn GmbH &Co.KG
About
Hans Rinninger u. Sohn GmbH & Co. KG produces precast concrete for civil engineering, building construction, and environmental technology in the Westallgaeu region of Germany. Now under fourth-generation family ownership, the roughly 220-person firm looks back on more than 110 years of manufacturing. Below ground it supplies reinforced concrete pipes, shaft bases - notably the RIKI-PERFECT 2.0 - manhole structures, and special profiles; at the surface, slot drains and the RIKI-MEGA-SLOT system handle stormwater on roads and industrial sites, with dedicated solutions for airport drainage. Environmental products extend to rainwater utilization and treatment systems and amphibian crossing tunnels cast in ultra-high-performance concrete. Building and landscape customers buy thermowalls, deck systems, stair elements, architectural concrete, and modular retaining walls including the BigBlock and SafeBlock systems. Planning, consulting, and installation accompany product delivery.
Key Products
Next-generation precast concrete shaft base for manhole construction.
High-capacity 2-in-1 surface drainage system for managing large stormwater volumes following extreme weather events.
Innovative surface drainage product for industrial and commercial area water management.
Reinforced concrete pipes for municipal sewer and drainage infrastructure in various diameters.
Precast concrete manhole systems including shaft bases, cones, and risers for sewer inspection and access.
Surface drainage channels for roads, industrial areas, and athletic facilities, managing stormwater at ground level.
Ultra-high-performance concrete amphibian protection crossings for roads, enabling safe wildlife passage.
Systems for collecting, treating, and reusing rainwater on-site for commercial and municipal applications.
Precast concrete thermal wall panels for building energy efficiency, combining insulation and structural function.
Deck systems, wall systems, stair elements, and architectural concrete for above-ground construction projects.
Modular concrete retaining wall systems for landscaping and earth retention in various scales.
Specialized surface and subsurface drainage solutions for airport infrastructure, showcased at inter airport 2025.
Custom-designed precast concrete structures for unique civil engineering and infrastructure requirements.
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