STS develops payments acceptance software for retailers, airlines and transportation operators that maximise choice and flexibility.

STS launches face-to-face cloud payment service with Worldpay from FIS

STS G8 and STS PayOp join forces to deliver something exceptional

What makes it unique?

Fully scalable payment application runs in cloud not on payment terminal

What does this mean?

Change something once centrally and it's immediately available everywhere

What else defines it?
  • Multiple merchants accepted instantly on one payment terminal
  • Multiple currencies accepted per transaction without Forex
  • Intelligent capabilities of PayOp exploited to keep service up and running
  • Consumes payment requests from any transaction source via industry standard RESTful API
  • Supports Worldpay tokenisation

To find out more contact us

We provide solutions for


We deliver market leading integrated payment solutions by connecting together PIN pads, business applications and acquirers. Our solution supports all types of cards & technologies and delivers realtime operational management.


We offer advanced payments acceptance solutions for use on-board planes and in airport terminals. Our solution supports common use implementations, kiosks and offline transaction processing, plus full remote management.


Our payments acceptance solution meets the needs of train, bus, ferry and toll operators. Our solution supports environments without fixed communication links and offline transaction processing, plus full remote management.

About STS

STS develops leading payments acceptance software that maximise choice and flexibility. We handle complex projects, unusual environments and custom development.

As a product-led company with unrivalled EMV expertise, we provide functionally rich and innovative payment applications, with top quality code and great support. We go to market through long-term strategic partnerships with sector specific industry leaders.

Thanks to our independence from card schemes, acquirers and device manufacturers, merchants benefit from increased control and financial savings.

More about STS

As leaders across the retail sector it's vital that we can deliver the best offerings and value to our customers.  Partners since 2003, we use STS' products as key components within our solutions. Their products and experience within the industry has been a key factor to our success in payments.

Gareth Meares, Toshiba Global Commerce Solutions

GuestLogix has worked with STS on several initiatives. They have delivered their products and solutions on time and with high quality.   All received deliverables have also been well documented and thoroughly tested. We look forward to continuing to work with their product-based solutions.

Narayanan Raman, Guestlogix Inc.

When looking for a partner, we felt that STS stood out as regards to providing a fully accredited and compliant EMV Level 2 kernel that integrates seamlessly and easily with our own customer present card processing solutions.

Andrew Davies, Capita

The flexible architecture of G8 enables our Unified Payment Service to isolate completely the card payment environment from the merchant's environment, including their POS solution, by facilitating a direct IP connection from the in-store payment device to Vodat's PCI DSS compliant data centres.

Ian Martin, Vodat International Limited

STS are true EMV experts. They played a critical role in the UK’s migration to Chip and PIN. If you are looking for flexible and field proven smart card solutions then you should check out STS’ highly innovative payment products.

Mark McMurtrie, Payments Consultancy Limited

HTEC are leaders in our market sector and as such wanted to partner with a leading payment application provider in order to provide our clients with the ultimate integrated solution. We were looking for high calibre products and a company who would guide us through the certification processes.

Cliff Keen, HTEC

STS are the Chip & PIN experts, that’s why we chose to partner with them.

Jaume Daviu, 2i Informàtica Industrial

We manufacture great devices and needed the best payment software to run with them. STS offer exactly that and have made a great partner.

Jenny Lee, Bluebird Inc.