Derdack

#8 in Emergency Notification

Potsdam, Germany

Products on G2

137

Total reviews

4.7

Avg. star rating

SIGNL4 ranks #8 in Emergency Notification.
Reviews across Derdack's portfolio declined 100.0% quarter-over-quarter.
Derdack's 2 products span 3 categories on G2.
Enterprise is the largest segment among reviewers, at 38.8%.

Traffic & LLM citations

Monthly G2.com page views and citations by AI answer engines, summed across Derdack's products.

Page views and citations · Derdack

Source: G2 review data

Winning from

Based on reviewers who said they switched from another vendor's product.

PagerDuty

Salesforce

Everbridge

Avaya

OnPage

Losing to

Based on reviewers of other products who said they switched from Derdack.

AlertOps

3 switched

Key stats

-100.0%

Enterprise

1999

Potsdam, Germany

Adoption by company size

Segment	Share of reviews
Small Business	29.9%
Mid-Market	31.3%
Enterprise	38.8%

Quarterly history

Quarter	Total reviews	Avg. rating
2025 Q1	15	4.7
2025 Q2	2	5.0
2025 Q3	2	4.5
2025 Q4	3	5.0
2026 Q1	1	5.0
2026 Q2	18	4.5

About Derdack

Derdack is an innovation leader in automating critical notification and communication workflows, in communication-enabling applications and in mobilizing incident management. Founded in 1999, Derdack has its headquarters in Glen Allen, Virginia, Potsdam, Germany and Bern in Switzerland.Derdack’s helps enterprises and global services organizations in over 50 countries and in all verticals to automate and centralize alert notification processes. It provides customers with the ability to reliably distribute critical information to the right people and to respond to critical incidents and emergency situations before they can impact business continuity and customer service levels.