Synthomesh

Metaballify - Organic Modeler is a Blender addon for sketching organic shapes on the fly. Select a group of meshes, press convert, and generate a new organic shape. Easy to use and intuitive.

Bool It - Quick Booleans is a Blender addon for applying and managing booleans in object mode. It uses union and subtraction, so you arrange parts in the viewport and mark each as positive or negative.

Livemesher is a Blender workflow add-on built on the remesh modifier that lets you preview remeshing of a selected group of objects before committing. Switch between a preview mode and tweaking parts separately.

Quick Edit is a set of Blender shortcuts that speed up editing of edges and faces. Icon buttons switch from object mode into edit mode with the right tool already selected.

Rocklab is a procedural rock addon for Blender from Synthomesh, built to create rock assets with a few clicks. It generates a variety of realistic rocks and lets you customize them, no photoscanning involved.