This site has information over 20,000 major companies located around the world, including about 70 in Ireland. Data provided include stock chart, brief profile, list of directors, phone, fax, fiscal year month, historical sales, earnings, PE ratio, historical dividend information and much more. Irish Share Talk Message board about Irish stocks. Also has some links to research sites. Kompass Ireland Directory of Irish companies.
Many companies also have longer profiles.
Can search by executive, product or name. Very large database. Irish Trade Irish Trade Board. Get information about Irish and UK companies, including company filings. Offers profiles of Irish and British companies.