Trade, selling and logistics

HM Revenue & Customs is the UK's tax, payments and customs authority.

Royal Mail's website provides information about its UK postal services and related customer tools.

Business.gov.uk provides official guidance, services and contacts for starting, running and growing a UK business.

Companies House provides the official UK company register and related company-information services.

Business Gateway provides publicly funded business support in Scotland.

Business Wales provides information, guidance and support for businesses in Wales.

nibusinessinfo.co.uk provides practical information for businesses in Northern Ireland.

The Federation of Small Businesses is a membership organisation for small businesses and the self-employed.

Invest Northern Ireland is Northern Ireland's economic development agency.

UK Export Finance provides government-backed export finance and insurance support.

The British Chambers of Commerce connects businesses through its chamber network.

DHL's UK website provides information about shipping and logistics services.

Shopify provides tools for building and operating a commerce business across online and supported in-person channels.

Stripe provides payment and financial-infrastructure products for businesses and developers.

GoCardless provides payment services for businesses.

Scottish Enterprise is a business and economic-development agency in Scotland.

The Department for Business, Innovation, Science and Trade is the current UK government department for business growth, investment, innovati

The Department for Environment, Food and Rural Affairs is a UK government department concerned with the environment, food, farming and rural

The Food Standards Agency is a public body responsible for food safety and hygiene in England, Wales and Northern Ireland.

Food Standards Scotland is Scotland's public-sector food body.