Welcome to HSL

HSL (Hay Systems Ltd) is an independent mobile network operator, infrastructure vendor and provider of mobile services to organisations and individuals around the world. The business of HSL comprises the Mobile Networks division and the Mobile Messaging division.

"To consistently provide superior mobile services: driven by our commitment to resilience and reliability, quality customer relationships and innovative infrastructure enhancements."

HSL Mission Statement

Mobile Networks

As an operator of its own GSM network, HSL is involved in the development of GSM mobile network infrastructure and mobile network services.


Mark Hay, Managing and Technical Director, in a recent webcast:
Introduction to the HSL 2.75G Femtocell.

Watch the webcast here

Mobile Messaging

HSL are the leading reputable providers of reliable SMS gateway services, offering high quality and cost-effective global messaging through our technically advanced infrastructure.

Mobile Messaging

Free Femtocells from HSL at MWC 2010

Edinburgh, Scotland, February 2010

HSL are today announcing that they will be giving away a free femtocell, for use with 2G and 3G mobiles, to each mobile network operator visiting HSL's stand at the Mobile World Congress in Barcelona 15-18 February 2010.

Mobile World Congress

15th-18th February 2010

HSL will be in exhibiting at GSMA Mobile World Congress at stand 2D26. To arrange to meet with us during this event please contact HSL Sales.