State of Florida Renews Statewide Contract and Deploys Everbridge Mobile App to Enhance AlertFlorida for 20 Million Residents and Visitors

Smartphone application adds innovative Location-Based Warnings and Situational Awareness Maps features to Everbridge’s award-winning platform

BURLINGTON, Mass., June 26, 2018 — Everbridge, Inc. (NASDAQ: EVBG), the global leader in critical event management and enterprise safety applications to help keep people safe and businesses running, today announced a statewide rollout of its Mobile Safety App, in partnership with the Florida Division of Emergency Management (FDEM). The State of Florida has recently renewed its agreement with Everbridge for a third full year as the service provider for AlertFlorida, which has become one of the most comprehensive and coordinated statewide emergency notification programs in the country. AlertFlorida, managed by FDEM and powered by Everbridge, distributes critical information to residents and visitors, and is used by nearly every county within the state. The Everbridge Mobile App adds critical new functionality to Florida’s emergency notification program, keeping residents and travelers informed as this year’s hurricane season gets underway. “Natural disasters like Hurricanes Irma and Matthew remind us all just how important it is to be prepared and to effectively share safety information and instructions with residents when the worst happens,” explained Jaime Ellertson, CEO of Everbridge. “Reliability of critical communications is essential during such events, both for individuals at risk and for organizations to address disruptions to their business operations.” During critical events like hurricanes, tropical storms, and floods, message paths can often be compromised by low bandwidth or connectivity issues, highlighting the importance of having more than one way to reach residents. The Everbridge App offers that additional channel to receive critical alerts directly on your phone. In addition, the Everbridge App has introduced several new features including location-based push alerts when entering high-risk Incident Zones, and a searchable map of local active notifications. “With an increasingly mobile population, we needed an on-the-go solution that would reach our residents and tourists who regularly travel throughout the state,” said Wes Maul, Director of the Florida Division of Emergency Management. “I’m confident the Everbridge App will help us share information quickly and reliably during emergency situations.” Visit https://floridadisaster.org/alertflorida/ to sign up for alerts from your area and download the Everbridge App from the Apple or Android stores. About Everbridge Everbridge, Inc. (NASDAQ: EVBG) is a global software company that provides enterprise software applications that automate and accelerate organizations’ 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 including IT outages, cyber-attacks or other incidents such as product recalls or supply-chain interruptions, over 3,800 global customers rely on the company’s Critical Event Management 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 through the secure delivery to over 100 different communication devices, and track progress on executing response plans. The company’s platform sent over 2 billion messages in 2017 and offers the ability to reach over 500 million people in more than 200 countries and territories, including the entire mobile populations on a country-wide scale in Sweden, the Netherlands, the Bahamas, Singapore, Greece, Cambodia, and a number of the largest states in India.  The company’s critical communications and enterprise safety applications include Mass Notification, Incident Management, Safety Connection™, IT Alerting, Visual Command Center®, Crisis Commander®, Community Engagement™ and Secure Messaging. Everbridge serves 9 of the 10 largest U.S. cities, 8 of the 10 largest U.S.-based investment banks, all 25 of the 25 busiest North American airports, six of the 10 largest global consulting firms, six of the 10 largest global auto makers, all four of the largest global accounting firms, four of the 10 largest U.S.-based health care providers and four of the 10 largest U.S.-based health insurers. Everbridge is based in Boston and Los Angeles with additional offices in Lansing, San Francisco, Beijing, Kolkata, London, Oslo 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 attract, integrate and retain qualified personnel; 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, 2017 filed with the SEC on March 12, 2018. 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.   Media Contact: Jeff Young Everbridge jeff.young@everbridge.com 781-859-4116