Helios.do is a digital eco-bank offering sustainable banking services, including a wooden card, focused on supporting the ecological transition. They specialize in funding projects related to waste treatment and other environmental initiatives. Their target audience likely includes environmentally conscious consumers and businesses. The unique selling proposition of Helios.do is its commitment to sustainability and eco-friendly banking practices, setting it apart from traditional banks by promoting environmental responsibility. However, detailed services and specific offerings are not fully outlined in the available information.