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View CallingPost Communications's top competitors like AlertMedia, CallMultiplier, and Gamma Iota Sigma at UNC Chapel Hill.

Twilio
Today's leading companies trust Twilio's Customer Engagement Platform (CEP) to build direct, personalized relationships with their customers everywhere in the world. Twilio enables companies to use communications and data to add intelligence and security to every step of the customer journey, from sales to marketing to growth, customer service and many more engagement use cases in a flexible, programmatic way. Across 180 countries, millions of developers and hundreds of thousands of businesses use Twilio to create magical experiences for their customers.
San Francisco, California, US
Public
$4.3B Revenue
https://www.twilio.com/en-us
6.8K Employees
TWLO Ticker
AlertMedia
AlertMedia is the leading Risk Intelligence and Response platform, helping organizations anticipate, assess, and respond to threats that impact their people, operations, and brands. Our unified platform enables teams to monitor global risk at scale, assess impact using real-time context, and resolve incidents with speed and precision—all from a single system. By connecting people, data, and workflows across the entire incident lifecycle, AlertMedia helps cross-functional teams act in lockstep—ensuring the right action happens at the right time, every time. Trusted by organizations from the Fortune 10 to high-growth disruptors, AlertMedia empowers security, safety, and business continuity leaders to stay ahead of risk and build more resilient, responsive organizations.
Austin, Texas, US
Private
$94.5M Revenue
https://www.alertmedia.com
500 Employees
Remind
Remind is now part of ParentSquare, joining forces to deliver the most comprehensive, reliable family engagement platform in K-12. Founded in 2011, Remind helped redefine how schools connect with students and families, growing into one of the largest free communication services in education. Today, as part of ParentSquare, we’re advancing that mission even further by bringing together best-in-class communication tools with districtwide solutions for websites, attendance, payments, and more to help every family stay connected to their child’s learning. Together, ParentSquare and Remind support millions of educators, students, and families across the country with effective, accessible, and easy-to-use communication and engagement solutions. Learn more at ParentSquare.com and Remind.com.
San Francisco, California, US
Private
$32.6M Revenue
http://www.remind.com
100 Employees

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