Jinolo is a 3D CAD collaboration tool made specifically for industrial designers sharing files with clients, reviewers and suppliers. It prevents confusing email chain attachments. View CAD directly in the browser, share with anyone and add comments in 3D.
Who's behind a product speaks volumes about it. I've had the pleasure of getting to know Sophia, founder and lead developer at Jinolo. She's the real deal, and I'm confident enough about her to recommend Jinolo.