{"source":"Breaknorm","page":"https://breaknorm.co/company/seier-gruppe.de","license":"https://breaknorm.co/terms","domain":"seier-gruppe.de","name":"Seier Gruppe","legal_name":"Seier Gruppe","country":"DE","country_second":"AT","city":"","admin1":"","vertical":"property_construction","subvertical":"construction_and_building_engineering","leaf":"civil_infrastructure_contractors","summary":"Seier Gruppe is a family-owned construction group active in Germany that provides infrastructure construction services across 35 locations in 8 federal states. Its offerings include waste disposal, deep and pipe construction, district heating, broadband expansion, horizontal drilling, and telecommunications work. 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and engineering for energy supp."},{"domain":"streicher.de","name":"STREICHER Gruppe","country":"DE","city":"Deggendorf","headcount":"1001-5000","leaf":"civil_infrastructure_contractors","summary":"STREICHER Gruppe is a diversified engineering and construction group that provides pipeline and plant construction, machine engineering, electrical engineering,."},{"domain":"niersberger.de","name":"Niersberger Group","country":"DE","city":"Erlangen","headcount":"201-500","leaf":"general_property_developers","summary":"The Niersberger Group is a holding company from the Nürnberg metropolitan region that plans, builds and operates residential, commercial and energy-technology f."},{"domain":"eggers-gruppe.de","name":"EGGERS-Gruppe","country":"DE","city":"Tangstedt","headcount":"501-1000","leaf":"civil_infrastructure_contractors","summary":"EGGERS-Gruppe is a family-owned construction and engineering group that provides earth and civil engineering, environmental remediation, mine clearance, road an."},{"domain":"gebr-haider.at","name":"UNTERNEHMENSGRUPPE HAIDER","country":"AT","city":"Rodelsbach","headcount":"501-1000","leaf":"civil_infrastructure_contractors","summary":"UNTERNEHMENSGRUPPE HAIDER is a family-run Austrian business group that provides civil engineering, earthmoving, demolition and waste-recycling, small hydro powe."},{"domain":"ied.swiss","name":"IED Gruppe AG","country":"CH","city":"Hägendorf","headcount":"201-500","leaf":"telecom_network_contractors","summary":"IED Gruppe AG is a service provider that delivers infrastructure services for energy, telecommunications and transport networks across the Swiss and German-spea."}],"similar_scored":595,"customers":null,"as_of":"2026-11-02","updated_at":"2026-11-02","hash":"605964af328ec59e","index_tier":1}