HSL Mobile (Hay Systems Ltd) was acquired by LINK Mobility Group AS in December 2018.At HSL Mobile® our innovative mobile communication services add real value to organisations. We connect teams and organisations with their customers, suppliers and partners to enable them to be more effective and efficient.

HSL Mobile® is a global provider of mobile communication services to enterprises. Founded in 1999 in Edinburgh, Scotland, the company continues to deliver excellence, reliability and innovation in its services, enabling customers such as DHL, John Lewis, NHS and Save the Children to employ them in business critical applications.

As a mobile operator in the UK we have invested heavily in our mobile communications infrastructure. We operate our own SS7 Short Message Service Centres (SMSCs) which are used in conjunction with direct and indirect connections to mobile networks for the delivery of messages. Our core messaging infrastructure is located over multiple datacentre sites in Europe and is capable of handling millions of messages per day.

The SMSCarrier service from HSL Mobile® can be depended upon by large and small organisations around the world. We are one of the most experienced and technically capable providers in the market and one of the very few who have invested so deeply to be able to provide a highly reliable and technically advanced service. We are also experienced and knowledgeable when it comes to the SMPP protocol and were members of the SMS Forum, the body responsible for this protocol.

HSL Mobile (Hay Systems Ltd) was acquired by LINK Mobility Group AS in December 2018.

The company is headquartered in Livingston, Scotland and its registered office is located in Edinburgh.