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The Building Engineering Services Association (BESA) is the UK’s leading trade organisation for building engineering services contractors.

The Contractors Health and Safety (CHAS) Assessment Scheme is a pre-approval scheme to allow contractors to show potential clients that they meet the required health and safety standards.

Constructionline is the UK’s leading procurement and supply chain management service, showing potential buyers that your company has been assessed to government and industry standards.

The Gas Safe Register is the official list of gas engineers who are registered to work safely and legally on boilers, cookers, fires and all other gas appliances.

The Ground Source Heat Pump Association (GSHPA) encourages the growth and development of the ground source heat pump industry.

HETAS is the official body recognised by Government to approve biomass and solid fuel heating appliances, fuels and services including the registration of competent installers and servicing businesses.

The Microgeneration Certificate Scheme (MCS) demonstrates competence to install a range of small scale renewable and low carbon technologies in both the domestic and commercial sectors. It’s required to qualify for Government incentives such as the Renewable Heat Incentive (RHI).

The Renewable Energy Consumer Code (RECC) was set up by the Renewable Energy Association to guarantee a high quality experience for consumers wishing to buy or lease small-scale energy generation systems for their homes.

The UK District Energy Association (ukDEA) promotes district energy as a means to deliver significant carbon savings, and provides a direct link between the Government and the industry’s small market base.


Gatwick Diamond Business (GDB) is a financially and politically-independent body that represents, supports and empowers local businesses.

The Sussex Chamber of Commerce provides a variety of business services and encourages networking across businesses in Sussex.

Venues of Excellence

Venues of Excellence is the leading collection of exceptional venues delivering excellence in conferences, training and events.