The research focuses on the characteristics of TNC users and operators; perception of commuters and operators on Uber and GrabCar; role of Uber and GrabCar in our transportation sector and sustainable transport in Metro Manila; and recommendations for TNCs as well as for improving conventional taxi services. The study results contain the user profile characteristics, analysis of key performance indicators, service operator characteristics, and contributions to sustainable transport. The rise of the TNC transport modes proved problem in the current conventional taxi service in Metro Manila. TNCs, to contribute to sustainable transport, should consider the ride-sharing concept by maximizing the vehicle's occupancy and encouraging people to share their rides. TNCS should highly discourage buying new vehicles for their members and instead utilize the existing ones in good condition.