Blender - Blender is the open source, cross platform suite of tools for 3D creation.
PayPal - PayPal is the faster, safer way to pay online without sharing financial details, send and receive money or accept credit and debit cards as a seller
FreeCAD - An open-source parametric 3D modeler
Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Braintree - An all-in-one solution to accept, process, and split payments in your mobile app or online - from small business to large enterprise.