Employee Net Promoter Score — a survey measuring how likely employees are to recommend their workplace. At HubSpot, Katie Burke published every single comment from the eNPS survey, including negative ones about herself, as part of the company's Radical Transparency culture. However, Burke found that employee happiness metrics like eNPS were not actually predictive of retention — the only predictive measure was "I see myself at HubSpot in the next 12 months."