In 1975 John C Bogle founded the investment company Vanguard. Using simple Index Tracking Funds, to create economies of scale, today, Vanguard has $2 Trillion = $2000 Billion = £1194 Billion = £1.194 Trillion under management via its 24 Funds.
A great quote from John Bogle “Don’t look for the needle in the haystack. Just buy the whole haystack”
What he is effectively saying is that the stock market as a whole generally gives good long-term returns, so save yourself the stress of looking for specific companies, and just buy an index fund where you will get all the companies.
A great place for Index Trackers is Legal & General:
http://www.legalandgeneral.com/investments/products-and-funds/index-tracker/
A world choice, low charges, and resulting in buying all the needles in the haystacks.