GRUB - Multiboot boot loader
Visual BCD Editor - Visual BCD Editor - advanced GUI version of bcdedit utility. for Windows 7/8/10 and Vista
Clover EFI bootloader - This is EFI-based bootloader for BIOS-based computers created as a replacement to EDK2/Duet...
Grub2Win - Safely dual boot Windows and Linux without touching the Windows MBR.
U-Boot - Das U-Boot (the Universal Bootloader) and Embedded Linux
coreboot - coreboot is an extended firmware platform that delivers a lightning fast and secure boot experience...