Callsign competitorsClear all

Callsign's top competitors include Clear and SecureAuth.
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Callsign
Callsign
Сallsign provides secure and seamless authentication experience for enterprises and users.
Clear
Clear
Clear is a high speed mobile internet service that provides flexible 4G wireless internet access for web-enabled devices.
SecureAuth
SecureAuth
SecureAuth is the leader in adaptive access control solutions, to determine identities with confidence.
Founding Date
Founding Date
2012
Founding Date
2003
Founding Date
2006
Type
Type
Private
Type
Public
Type
Private
Tags
Locations
Locations
London, GB HQ
Palo Alto, US
Locations
New York, US HQ
Locations
Irvine, US HQ
Bmi, AR
Greater London, GB
Chicago, US
Irving, US
Menlo Park, US
New York, US
see more
Employees
Employees
3024% increase
Employees
1,646
Employees
2163% decrease
Twitter followers
Twitter followers
860
Twitter followers
23.2 k
Twitter followers
9.1 k
Number of tweets (last 30 days)
Number of tweets (last 30 days)
27
Number of tweets (last 30 days)
78
Number of tweets (last 30 days)
27
Average likes per tweet (last 30 days)
Average likes per tweet (last 30 days)
1.4
Average likes per tweet (last 30 days)
1.6
Average likes per tweet (last 30 days)
0.5
Percentage of tweets with engagement (last 30 days)
Percentage of tweets with engagement (last 30 days)
70.37%
Percentage of tweets with engagement (last 30 days)
42.31%
Percentage of tweets with engagement (last 30 days)
55.56%
Alexa Website Rank
Alexa Website Rank
N/A
Alexa Website Rank
58174
Alexa Website Rank
93430
Employee Rating
Employee Rating
4.6
Employee Rating
3.2
Employee Rating
3.6

Funding

Latest funding round
Latest funding round
$ 35m (over 4 years ago)
Latest funding round
N/A
Latest funding round
$ 1m (almost 5 years ago)
Total funding raised
Total funding raised
$ 38.8m
Total funding raised
$ 135m
Total funding raised
$ 38.7m
For sources of this data, please see the company profile

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Clear
HQ
New York, US
Employees
1,646

Clear is a high speed mobile internet service that provides flexible 4G wireless internet access for web-enabled devices.

View company
SecureAuth
HQ
Irvine, US
Employees
216↓ 3% decrease

SecureAuth is the leader in adaptive access control solutions, to determine identities with confidence.

View company