100% of the 25 Busiest Airports in North America Now Utilize Everbridge for Critical Event Management

In addition to airports, Everbridge’s products are used by some of the largest airlines in the world, the busiest seaports and transit authorities, the largest cruise lines, as well as the largest railroads in the United States, to improve collaboration during serious situations, such as severe weather episodes or active shooter incidents. The Everbridge platform makes it easy to plan for and manage incident communications and responses, following standard operating procedures and response protocols to help locate those at risk, determine who is safe – and ensure that the correct information is received by all personnel involved for the duration of the critical event. The platform is also used to ensure compliance with industry regulations and enable effective after-action reporting and analysis. “Our experience with the world’s leading airports, transportation hubs and critical infrastructure helps ensure that customers can take advantage of best practices when it comes to managing critical events and emergency responses,” said Jaime Ellertson, CEO of Everbridge. “When a critical event occurs, time is of the essence and reliability must be assured. Travelers, local officials, law enforcement and first responders all need information and instructions as quickly as possible so the proper actions can be taken to keep people safe and resolve the situation.” Airports that leverage Everbridge for critical event management include the world’s busiest, Atlanta International Airport (ATL), as well as Los Angeles International Airport (LAX), Chicago’s O’Hare International Airport (ORD), both Dallas/Fort Worth International Airport (DFW) and Dallas Love Field (DAL), and New York City’s John F. Kennedy International Airport (JFK), Newark Liberty International Airport (EWR) and LaGuardia Airport (LGA). In total, Everbridge serves more than 100 airports globally, including 100% of the busiest 25 airports in North America. Everbridge also serves several of the cities that are home to these transportation hubs, as it is relied upon by 8 of the 10 largest cities in the United States. About Everbridge Everbridge, Inc. (NASDAQ: EVBG) is a global software company that provides enterprise software applications that automate and accelerate an organization’s operational response to critical events in order to keep people safe and businesses running. During public safety threats such as active shooter situations, terrorist attacks or severe weather conditions, as well as critical business events such as IT outages or cyber-attack incidents, over 3,400 global customers rely on the company’s SaaS-based platform to quickly and reliably aggregate and assess threat data, locate people at risk and responders able to assist, automate the execution of pre-defined communications processes, and track progress on executing response plans. The company’s platform sent over 1.5 billion messages in 2016, and offers the ability to reach over 200 countries and territories with secure delivery to more than 100 different communication devices. The company’s critical event management and enterprise safety applications include Mass Notification, Incident Management, IT Alerting, Safety Connection™, Community Engagement®, Visual Command Center®, Crisis Commander® and CareConverge™, and are easy-to-use and deploy, secure, highly scalable and reliable. Everbridge serves 8 of the 10 largest U.S. cities, 8 of the 10 largest U.S.-based investment banks, all four of the largest global accounting firms, all 25 of the 25 busiest North American airports and 6 of the 10 largest global automakers. Everbridge is based in Boston and Los Angeles with additional offices in San Francisco, Lansing, Beijing, London and Stockholm. For more information, visit www.everbridge.com, read the company blog, and follow on Twitter and Facebook. Cautionary Language Concerning Forward-Looking Statements: This press release contains “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, including but not limited to, statements regarding the anticipated opportunity and trends for growth in our critical communications and enterprise safety applications and our overall business, our market opportunity, our expectations regarding sales of our products, and our goal to maintain market leadership and extend the markets in which we compete for customers. These forward-looking statements are made as of the date of this press release and were based on current expectations, estimates, forecasts and projections as well as the beliefs and assumptions of management. Words such as “expect,” “anticipate,” “should,” “believe,” “target,” “project,” “goals,” “estimate,” “potential,” “predict,” “may,” “will,” “could,” “intend,” variations of these terms or the negative of these terms and similar expressions are intended to identify these forward-looking statements. Forward-looking statements are subject to a number of risks and uncertainties, many of which involve factors or circumstances that are beyond our control. Our actual results could differ materially from those stated or implied in forward-looking statements due to a number of factors, including but not limited to: the ability of our products and services to perform as intended and meet our customers’ expectations; our ability to attract new customers and retain and increase sales to existing customers; our ability to increase sales of our Mass Notification application and/or ability to increase sales of our other applications; developments in the market for targeted and contextually relevant critical communications or the associated regulatory environment; our estimates of market opportunity and forecasts of market growth may prove to be inaccurate; we have not been profitable on a consistent basis historically and may not achieve or maintain profitability in the future; the lengthy and unpredictable sales cycles for new customers; nature of our business exposes us to inherent liability risks; our ability to successfully integrate businesses and assets that we may acquire; our ability to maintain successful relationships with our channel partners and technology partners; our ability to manage our growth effectively; our ability to respond to competitive pressures; potential liability related to privacy and security of personally identifiable information; our ability to protect our intellectual property rights, and the other risks detailed in our risk factors discussed in filings with the U.S. Securities and Exchange Commission (“SEC”), including but not limited to our Annual Report on Form 10-K for the year ended December 31, 2016 filed with the SEC on March 23, 2017. The forward-looking statements included in this press release represent our views as of the date of this press release. We undertake no intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. These forward-looking statements should not be relied upon as representing our views as of any date subsequent to the date of this press release. All Everbridge products are trademarks of Everbridge, Inc. in the USA and other countries. All other product or company names mentioned are the property of their respective owners.