Dr. Mariheca Otto is a researcher and organisational diagnostician whose work has been quietly redefining what people data can tell us about the health of organisations. Since founding Motto Consulting & Surveys in 2005, she has built the Motto Engagement Survey™ into one of Southern Africa’s most extensive longitudinal datasets: 20 years, 13 industries, 15,000+ data points across 10 countries.

Her diagnostic framework — the Motto Model™, developed through doctoral research in internal marketing — measures not what people say about their organisations, but how they experience them. The distinction matters: in every case where Motto data declined across two consecutive assessments, visible organisational disruption followed within 12 to 18 months.

Dr Otto works with leadership teams, CHROs, and boards who need their people decisions grounded in evidence. Her presentations do not offer frameworks. They offer two decades of proof.