Semafone provides secure voice transactions for contact centres and retailers taking Cardholder Not Present (CNP) payments. The award winning solution allows a call – and the call recording – to continue as normal whilst the customer enters their credit card information using their telephone keypad. For complete security, Semafone’s patented technology masks the Dual Tone Multi-Frequency (DTMF) tones from the cardholder’s telephone and replaces them with a flat tone so they can’t be recognised by the call centre agent or recorded on the call recording system.
By ensuring all card data remains segregated and by removing Sensitive Authentication Data (SAD) before it hits the call recorder and the contact centre infrastructure, the contact centre is taken out of the scope of PCI DSS, protected against the risk of opportunistic agent fraud and the associated reputational risk. 

Company Growth (employees)
Guildford, GB
Size (employees)
101 (est)+1%
Semafone was founded in 2009 and is headquartered in Guildford, GB

Semafone Office Locations

Semafone has offices in Guildford, Boston and London
Guildford, GB (HQ)
3 The Billings Walnut Tree Close Guildford, Surrey GU1 4UL
London, GB
22 Upper Ground
Boston, US
745 Atlantic Ave

Semafone Data and Metrics

Summary Metrics

Founding Date


Total Funding

$2.8 m

Latest funding size

$2.8 m

Time since last funding

about 7 years


Semafone's latest funding round in June 2010 was reported to be $2.8 m. In total, Semafone has raised $2.8 m

Semafone Financial Metrics

Semafone's revenue was reported to be £5 m in FY, 2015 which is a 4% decrease from the previous period.

Revenue (FY, 2015)

5 m

Revenue growth (FY, 2014 - FY, 2015), %


Gross profit (FY, 2015)

4.8 m

Gross profit margin (FY, 2015), %


Net income (FY, 2015)

(1.6 m)

Cash (31-Dec-2015)

3.5 m
GBPFY, 2013FY, 2014FY, 2015


3.8 m5.3 m5 m

Revenue growth, %


Cost of goods sold

90.5 k176.5 k251.5 k

Gross profit

3.7 m5.1 m4.8 m
GBPFY, 2013FY, 2014FY, 2015


221.9 k4.3 m3.5 m

Accounts Receivable

457.2 k1.7 m1.8 m

Current Assets

2.3 m7.6 m6.9 m


331.5 k300.9 k326.1 k
GBPFY, 2013FY, 2014FY, 2015

Income Taxes Paid

131.7 k109.3 k271.3 k
GBPY, 2015


79.7 k

Financial Leverage

2.9 x
Show all financial metrics

Traffic Overview of Semafone

Semafone Online and Social Media Presence

Semafone Company Life and Culture

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