Program Information ONE400, Inc., is an award winning digital marketing, advertising and product development agency that works exclusively in the legal industry. We are looking for hardworking and dedicated innovators to help us continue to change how legal services are marketed, sold and designed. Our team is comprised of marketers, developers, designers, lawyers and product professionals. ONE400???s mission is to create and implement next generation law marketing solutions that allow law firms and legal tech organizations offer services that promote access to justice, improve the quality of legal services and reach a broader audience.