Four Cedar Rapids companies and one Iowa City company received apprenticeship grants through the Coronavirus Relief Fund Registered Apprenticeship Expansion Monday.The New Bohemian Innovative Collaboration in Cedar Rapids received $49,950 — the largest grant among Corridor companies. It will expand an existing apprenticeship program by hiring application and digital marketing developers.Metro Pavers in Iowa City had the second-highest grant in the Corridor, with $49,517.05 for two apprenticeships — one existing apprenticeship and a new one for a concrete mason.Cedar Rapids Tank Wash received $47,430.96 for virtual training systems as part of its welding program.Iron Workers Local Union No.