STM Group PLC is active in the financial services market in the United Kingdom. It offers a range of financial services, which are offered through its operating segments, including Pensions, Corporate Trustee Services, Life Assurance, and Other Services. The pensions segment accounts for the major share of the company's revenues. Through this segment, it provides pension solutions to clients at home and in the international market. The company's geographical segments are Gibraltar, Malta, United Kingdom, Jersey, and Others.