Thaddeus Stephens

Part of The Myers Briggs Co., OPP Holdings Ltd. is a holding British company that provides publishing services through its subsidiaries. The company is based in Oxford, UK and was founded in 2015.

OPP Ltd. provides psychological tools and techniques. It offers business psychology consultancy services including assessment testing, leadership development, team building, conflict resolution, training, and psychology-based solutions. The company was founded by Robert McHenry in 1989 and is headquartered in Oxford, the United Kingdom.

Part of The Myers Briggs Co., The Myers-Briggs Co. Holdings (Europe) Ltd. is a British company founded in 2016 that provides career assessments to deliver insight and direction for students. The company is based in Oxford, UK and is a leader in personality, career, and professional development assessments. The Myers-Briggs Company helps to improve the performance of individuals and organizations by identifying and nurturing talent with the CPI tool.