AirMDR Growth Is Telling Us Something About the Future of MDR AirMDR has grown quickly over the past 18 months: ARR is up 373%, our customer base is up 186%, and seven of our eight most recent customers switched from another MDR provider. Our NPS is 69, based on responses from 84% of customers since April. See our recent press release for more ( link to AirMDR Momentum Press Release ).