ModSpace, headquartered in Wayne, Pennsylvania, is a leading provider of turnkey, engineered modular solutions for temporary and permanent application serving commercial, education, construction, government, and healthcare markets. ModSpace provides solutions to a diverse set of customers and markets through an extensive nationwide branch network throughout the United States and Canada.

In March 2007, Resun Leasing, a Calera Capital II and III portfolio company, acquired General Electric Capital Corporation's North American modular space business. Concurrent with the acquisition, Resun has been renamed Modular Space Corporation ("ModSpace").