C2Y, operating under the brand name NAYA, is a platform that supports the business success of interior construction companies. Their core services include providing bid support for small construction companies and cost-saving support for medium to large construction companies. They offer solutions such as real-time site management, efficient site operation proposals, and free ERP for site management.

Established in May 2018 as a holding company in Korea to operate its subsidiary HOBIEN, a B2C construction brokerage business in Vietnam, C2Y launched the NAYA service in March 2022. Their mission is to digitally transform the lagging interior B2B market by providing services such as bid and cost-saving support, and management ERP.

The company is led by a team of professionals from the interior construction industry, including a representative from the National Treasure Design. Major shareholders include Shinhan Capital, Quantum Ventures Korea, Seoul Tech Holdings, Conjeo Ventures, and Nextrans. Currently, Nayac2y.com provides services for over 700 partners in Korea and 8,000 partners in Vietnam.