Stock explainers / Reviewed 11 October 2026

Well-known companies, explained for beginners

The short answer

Each explainer covers what the company does, how it makes money, its main strengths and risks, and the five questions worth asking before you invest. They are educational, not recommendations to buy or sell.

Investing involves risk and you can lose money. This page explains general ideas; it is not personal financial, tax or investment advice.

Apple AAPLConsumer technologyMicrosoft MSFTSoftware and cloudNVIDIA NVDASemiconductorsAmazon AMZNE-commerce and cloudAlphabet (Google) GOOGLInternet and advertisingMeta Platforms METASocial media and advertisingTesla TSLAElectric vehicles and energyCoca-Cola KOConsumer staplesRyanair RYA / RYAAYAirlinesCRH CRHBuilding materialsASML ASMLSemiconductor equipmentNovo Nordisk NVOPharmaceuticalsVisa VPaymentsJohnson & Johnson JNJHealthcareKerry Group KRZFood ingredients

Keep going

How do I start investing?How do I know what to invest in?How do I understand and manage my investments?How do I start investing in Ireland?How do I start investing in Europe?How do I start investing in the UK?Well-known companies, explained for beginners

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