|Employees (est.) (Apr 2022)||339||(+4%)|
Callsign total Funding
Callsign latest funding size
Time since last funding
|5 years ago|
|Accel Partners, Qualcomm Ventures, Allegis Capital, NightDragon Security, PTB Ventures, Terry Eger|
|Company Name||Date||Deal Size|
Callsign has 878 Twitter Followers. The number of followers has increased 0.3% month over month and increased 0.8% quarter over quarter
Tweets last 30 days
Avg. likes per Tweet
Tweets with engagement
When was Callsign founded?
Callsign was founded in 2011.
Who are Callsign key executives?
Callsign's key executives are Zia Hayat, Ian Welch and Sarah Whipp.
How many employees does Callsign have?
Callsign has 339 employees.
Who are Callsign competitors?
Competitors of Callsign include Clear, Daon and SecureAuth.
Where is Callsign headquarters?
Callsign headquarters is located at 1 Bartholomew Cl, London.
Where are Callsign offices?
Callsign has offices in London and Palo Alto.
How many offices does Callsign have?
Callsign has 2 offices.
Receive alerts for 300+ data fields across thousands of companies