See the below-referenced list of resources that I find to be the most trustworthy.
Leaping Bunny Program – First created in 1996, Leaping Bunny is the largest recognized Cruelty-Free organization in the world. Made up of eight animal protection groups (American Anti-Vivisection Society, Animal Alliance of Canada, Beauty Without Cruelty, USA, Doris Day Animal League, Humane Society of Canada, Humane Society of the United States, New England Anti-Vivisection Society, and National Anti-Vivisection Society), the Coalition for Consumer Information on Cosmetics (CCIC) promotes a single comprehensive standard and an internationally recognized Leaping Bunny Logo.
Cruelty-Free International – Cruelty Free International is an animal protection and advocacy group that campaigns for the abolition of all animal experiments. They organize certification of cruelty-free products which are marked with the symbol of a leaping bunny.
Cruelty-Free Kitty – Created by Suzana Rose in 2014, this resource was born from the mission to hold companies accountable over profits. The site has also expanded into a monthly, cruelty-free and vegan subscription box featuring carefully vetted brands.