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Gathering insights about S1

S1 Tech Stack

Media & News

S1's Email Address Formats

S1 uses at least 1 format(s):
S1 Email FormatsExamplePercentage
First.Last@s1.comJohn.Doe@s1.com
95%
FLast@s1.comJDoe@s1.com
3%
Last_First@s1.comDoe_John@s1.com
1%
Last.F@s1.comDoe.J@s1.com
1%

Frequently Asked Questions

What is S1's phone number?

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You can contact S1's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is S1's stock symbol?

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S1 is a publicly traded company; the company's stock symbol is S100.L.

What is S1's official website and social media links?

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S1's official website is s1.com and has social profiles on LinkedIn.

How much revenue does S1 generate?

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As of February 2026, S1's annual revenue is estimated to be $107M.

What is S1's SIC code NAICS code?

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S1's SIC code is 7372 - Prepackaged Software NAICS code is 5112 - Software Publishers.

How many employees does S1 have currently?

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As of February 2026, S1 has approximately 412 employees across 5 continents, including North AmericaAsiaEurope. Key team members include Vp Marketing: B. H.President And Co-Founder: J. F.Founder, Owner: W. C. S.. Explore S1's employee directory with LeadIQ.

What industry does S1 belong to?

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S1 operates in the Software Development industry.

What is S1's email format?

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S1's email format typically follows the pattern of First.Last@s1.com. Find more S1 email formats with LeadIQ.

When was S1 founded?

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S1 was founded in 1996.

S1

Software DevelopmentUnited States201-500 Employees

Leading banks, retailers, and processors need technology that adapts to the complex and challenging needs of their businesses. They want solutions that can respond quickly to changes in the marketplace and help grow with their business. For more than 20 years, S1 has been a leader in developing software solutions that deliver a competitive advantage.  
Over 3,000 organizations worldwide depend on us for payments, online banking, branch banking and lending solutions to power their businesses. We provide payments solutions for ATM driving, card management, merchant acquiring and retail payments. Our company has local product development, delivery and support operations throughout the world including offices in (local regional offices).  
More information is available at www.s1.com

Section iconCompany Overview

Phone number
Website
s1.com
SIC Code
7372 - Prepackaged Software
Stock Symbol
S100.L
NAICS Code
5112 - Software Publishers
Founded
1996
Employees
201-500

Section iconMedia & News

Section iconFunding & Financials

  • $250M$500M

    S1's revenue is estimated to be in the range of $250M$500M

Section iconFunding & Financials

  • $250M$500M

    S1's revenue is estimated to be in the range of $250M$500M

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