 PHOENIX, AZ ACCESSWIRE March 18, 2021 Alpine 4 Holdings, Inc. OTCQB:ALPP, a leading operator and owner of small market businesses welcomes recently retired U.S Airforce Technical Sergeant, Nathan Grier, to the Vayu US, Inc. Vayu team. Mr. Grier is the former Programs Director of Counter Small Unmanned Aerial Systems C-sUAS Small Unmanned Aerial Systems sUAS Nuclear Convoy for the U.S. Airforce. 