Insights

Enterprise Payments S1 serves over 3,000 organizations with payments, online banking, branch banking, and lending solutions, indicating a broad B2B target base across banks and retailers ripe for upsell of integrated payment and digital banking platforms.

Global Delivery With local product development and support across regions, there are opportunities to tailor sales motions by region, highlight fast deployment, and shorten time-to-value for new financial institutions and processors.

Stability and Scale Revenue is in the mid hundreds of millions and employee count is substantial, suggesting budget availability for modernization, risk/compliance upgrades, and larger-scale implementations with enterprise-grade SLAs.

Competitive Position S1’s focus on adaptable software for payments and banking complements competitors like Temenos and Fiserv; there is potential to position S1 as a strategic modernization partner for mid-to-large banks seeking flexibility and rapid changes.

Growth Opportunities The emphasis on payments, ATM driving, card management, and merchant acquiring indicates cross-sell potential into adjacent financial services software (digital banking, lending workflows, merchant services) to expand wallet share within existing clients.

S1 Corporation Tech Stack

Media & News

S1 Corporation's Email Address Formats

S1 Corporation uses at least 1 format(s):
S1 Corporation 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

Where is S1 Corporation's headquarters located?

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S1 Corporation's main headquarters is located at United States. The company has employees across 5 continents, including North AmericaAsiaEurope.

What is S1 Corporation's phone number?

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You can contact S1 Corporation'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 Corporation's stock symbol?

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

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

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

What is S1 Corporation's NAICS code?

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S1 Corporation's NAICS code is 5112 - Software Publishers.

How many employees does S1 Corporation have currently?

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As of May 2026, S1 Corporation has approximately 411 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 Corporation's employee directory with LeadIQ.

What industry does S1 Corporation belong to?

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S1 Corporation operates in the Software Development industry.

What is S1 Corporation's email format?

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

When was S1 Corporation founded?

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S1 Corporation was founded in 1996.
S1 Corporation logo

S1 Corporation

Software DevelopmentUnited States201-500 Employees

S1 Corporation is a United States-based software development firm with more than two decades of experience. It serves banks, retailers, and processors with software solutions for payments, online banking, branch banking, and lending, used by more than 3,000 organizations worldwide.

The company's payments offerings include ATM-driven payments, card management, merchant acquiring and retail payments. It maintains local development, delivery, and support capabilities across regions worldwide to serve its customer base.

Section iconCompany Overview

Headquarters
United States
Phone number
Website
s1.com
Stock Symbol
S100.L
NAICS Code
5112 - Software Publishers
Founded
1996
Employees
201-500

Section iconMedia & News

Section iconFunding & Financials

  • $250M$500M

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

Section iconFunding & Financials

  • $250M$500M

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

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