freedesktop.org gummiboot

gummiboot is a simple UEFI boot manager which executes configured EFI images

EasyBCD

EasyBCD is NeoSmart Technologies multiple award-winning answer to tweaking Windows bootloader.

Manage EFI/UEFI Boot Options & Manage EFI System Partitions & Fix EFI/UEFI Boot Issues

Multiboot boot loader

Safely dual boot Windows and Linux without touching the Windows MBR.

Libreboot is a distribution of …

Das U-Boot (the Universal Bootloader) and Embedded Linux

coreboot is an extended firmware platform that delivers a lightning fast and secure boot experience…