EC WITH is a Japan-focused marketplace connecting businesses that need e-commerce support with specialist professionals, freelancers, and service providers. The platform enables clients to browse ready-made service packages, find experienced providers, post projects, and seek advice through an EC consultation service. It also gives professionals a place to showcase their skills and find contract work.

Services cover the full range of online retail operations, from planning and store launches to ongoing management and sales improvement. Clients can request website design and development, Shopify and EC-CUBE setup, shopping-cart operations, product listing, page and banner creation, landing pages, consulting, advertising support, and routine administrative tasks. Providers work across major marketplaces such as Rakuten, Amazon, and Yahoo! Shopping, as well as independent-domain stores and B2B, cross-border, C2C, and hometown-tax donation platforms.

EC WITH supports both one-off tasks and broader business needs, including multi-marketplace operations and e-commerce strategy. Clients can discuss requirements, tailor package details, and receive estimates before work begins, making it easier to match projects with relevant expertise.