I couldn't find specific information about "OMS & Co" from the provided URLs or search results. However, based on typical company profiles, I can infer that OMS & Co likely offers specialized services, possibly in consulting or management, targeting businesses or organizations. Without specific details, their unique selling proposition might involve tailored solutions, expertise, and personalized service. For precise information, visiting their website or LinkedIn page would be necessary. If you're referring to a different OMS, such as O&M Solutions, they provide operation and maintenance services for the power sector, focusing on emerging markets and offering comprehensive project management solutions[1].