Tech industry has the highest turnover rate of 13.2%, with Apple, Amazon, and Meta having the shortest average employee tenures before the second year. Return-to-office policies and lack of stability have caused dissatisfaction among employees at Apple and Meta. In the UK, InterContinental Hotels & Resorts, NatWest Group, and WPP are among the worst companies for employee retention due to low median tenures and dissatisfaction with salary and benefits.