potrace - Open source program that transforms bitmaps into vector graphics.
Kudos - Kudos is the simple and easy to use employee recognition software that enhances employee engagement and team communication.
Vector Magic - Easily convert JPG, PNG, BMP, GIF bitmap images to SVG, EPS, PDF, AI, DXF vector images with real full-color tracing, online or using the desktop app!
Fond - Fond employee engagement platform helps companies increase employee happiness with recognition, rewards, perks and survey programs to maximize impact..
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Bonusly - Recognition and rewards that make work fun