 BURLINGTON, Mass.--BUSINESS WIRE--Everbridge, Inc. NASDAQ: EVBG, the global leader in critical event management CEM, today announced that three California county school districts became the latest to select the companys industry-leading K-12 School Safety software solution to address crisis situations affecting schools and districts. Everbridges School Safety platform provides public safety-grade applications to accelerate response times and coordinate efforts to address crises affectin 