TT Toolbox features a range of tools Thornton Tomasetti | CORE studio uses on a regular basis.

Meshedit is a set of components which extend Grasshopper's ability to work with meshes.     included components: utilities:

Elk is a set of tools to generate map and topographical surfaces using open source data from OpenStreetMap.org and USGS.   OpenStreetMap.or

Termite is the kind of animal that is well known for its Nest. Termite provides Generative spatial planning with real-time parametric process

  This is the first release of Starfish plug-in that allows parametric generation of various patterns. It focuses on 2d tessell

This is Crow - Artificial Neural Networks in Grasshopper. This component offers two different kinds of operation: Super

3D Graphic Statics is a structural form-finding method for generating compression-only funicular structures.

Use the same flexible language everywhere: GhPython is the Python interpreter component for GH that allows to execute dynamic scripts.