Karkkainen Ltd is a family-owned retail company based in Ylivieska, Finland, founded in 1988. It offers a wide range of approximately 400,000 non-food products through its stores and webshop. Services include retail trade and wholesale via SuomiTrading. The target audience is likely local consumers and businesses seeking hardware and home improvement products. The unique selling proposition (USP) is its extensive branch network and family-owned, customer-centric approach, offering a personalized shopping experience across Finland.