The route opened by this company between Maebashi Station and Akabane Station (later became Takasaki Line, Akabane Line, Yamanote Line) along with the state-owned railway line (Shinagawa Station - Yokohama Station) in 1885 made the first contribution to the industrial development by transporting raw silk and silk textile by providing a connection between the production area and shipping ports.
この会社が1885年に開通させた前橋駅～赤羽駅～品川駅のルート（後の高崎線・赤羽線・山手線）は、官営鉄道（品川駅～横浜駅）と合わせて当時の主要輸出商品であった生糸や絹織物の産地と輸出港を結ぶ路線となり、鉄道による産業発展への貢献の第一号となった。