I couldn't find specific information about Greenn Company through the provided URLs or search results. However, based on typical companies with similar names, they might focus on sustainability or environmental services. Without direct access to their website or LinkedIn page, it's challenging to provide detailed information about their services, target audience, or unique selling proposition. Generally, companies in this space often offer eco-friendly products or services aimed at environmentally conscious consumers and businesses, with a unique selling proposition centered around sustainability and environmental stewardship.