Xojo - Real Software and Real Studio are now Xojo.
FreeBASIC - FreeBASIC is a completely free, open-source, 32-bit BASIC compiler, with syntax similar to...
PowerBASIC - PowerBASIC, formerly Turbo Basic, is the brand of several commercial compilers by PowerBASIC Inc.
Liberty BASIC - Easy Programming for Windows XP, Vista, Windows 7, 8 and 10
B4J - 100% free development tool for cross platform desktop and server apps.
thinBasic - thinBasic is a simple, flexible, and easy-to-learn interpreted programming language.